/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_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:15:58,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:15:58,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:15:58,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:15:58,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:15:58,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:15:58,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:15:58,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:15:58,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:15:58,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:15:58,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:15:58,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:15:58,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:15:58,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:15:58,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:15:58,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:15:58,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:15:58,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:15:58,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:15:58,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:15:58,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:15:58,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:15:58,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:15:58,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:15:58,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:15:58,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:15:58,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:15:58,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:15:58,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:15:58,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:15:58,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:15:58,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:15:58,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:15:58,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:15:58,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:15:58,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:15:58,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:15:58,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:15:58,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:15:58,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:15:58,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:15:58,418 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 22:15:58,454 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:15:58,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:15:58,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:15:58,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:15:58,457 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:15:58,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:15:58,457 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:15:58,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:15:58,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:15:58,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:15:58,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:15:58,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:15:58,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:15:58,459 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:15:58,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:15:58,460 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:15:58,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:15:58,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:15:58,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:15:58,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:15:58,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:15:58,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:15:58,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:15:58,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:15:58,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:15:58,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:15:58,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:15:58,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:15:58,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:15:58,462 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 22:15:58,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:15:58,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:15:58,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:15:58,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:15:58,772 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:15:58,772 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label34.c [2020-10-14 22:15:58,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56cb9bbfc/9c03b884e94948898b391f1df2f3a5e4/FLAGc30379e45 [2020-10-14 22:15:59,439 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:15:59,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label34.c [2020-10-14 22:15:59,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56cb9bbfc/9c03b884e94948898b391f1df2f3a5e4/FLAGc30379e45 [2020-10-14 22:15:59,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/56cb9bbfc/9c03b884e94948898b391f1df2f3a5e4 [2020-10-14 22:15:59,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:15:59,676 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:15:59,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:15:59,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:15:59,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:15:59,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:15:59" (1/1) ... [2020-10-14 22:15:59,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6266eb80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:15:59, skipping insertion in model container [2020-10-14 22:15:59,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:15:59" (1/1) ... [2020-10-14 22:15:59,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:15:59,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:16:00,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:16:00,616 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:16:00,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:16:00,941 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:16:00,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00 WrapperNode [2020-10-14 22:16:00,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:16:00,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:16:00,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:16:00,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:16:00,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (1/1) ... [2020-10-14 22:16:00,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (1/1) ... [2020-10-14 22:16:01,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (1/1) ... [2020-10-14 22:16:01,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (1/1) ... [2020-10-14 22:16:01,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (1/1) ... [2020-10-14 22:16:01,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (1/1) ... [2020-10-14 22:16:01,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (1/1) ... [2020-10-14 22:16:01,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:16:01,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:16:01,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:16:01,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:16:01,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (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 22:16:01,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:16:01,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:16:01,208 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:16:01,209 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:16:01,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:16:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:16:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:16:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:16:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:16:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:16:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:16:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:16:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:16:03,271 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:16:03,272 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:16:03,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:16:03 BoogieIcfgContainer [2020-10-14 22:16:03,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:16:03,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:16:03,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:16:03,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:16:03,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:15:59" (1/3) ... [2020-10-14 22:16:03,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a843ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:16:03, skipping insertion in model container [2020-10-14 22:16:03,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:16:00" (2/3) ... [2020-10-14 22:16:03,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a843ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:16:03, skipping insertion in model container [2020-10-14 22:16:03,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:16:03" (3/3) ... [2020-10-14 22:16:03,296 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label34.c [2020-10-14 22:16:03,306 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:16:03,318 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:16:03,330 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:16:03,356 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:16:03,357 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:16:03,357 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:16:03,357 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:16:03,357 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:16:03,357 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:16:03,357 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:16:03,357 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:16:03,383 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 22:16:03,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-14 22:16:03,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:03,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:16:03,393 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:03,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:03,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1472830021, now seen corresponding path program 1 times [2020-10-14 22:16:03,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:03,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581369696] [2020-10-14 22:16:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:03,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:03,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:03,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 22:16:03,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:03,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-14 22:16:03,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:03,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:16:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 22:16:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:16:04,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:04,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:04,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:04,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:04,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:04,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:16:04,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:04,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:04,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:04,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:04,066 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 22:16:04,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581369696] [2020-10-14 22:16:04,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:16:04,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:16:04,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340994108] [2020-10-14 22:16:04,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:16:04,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:04,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:16:04,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:16:04,092 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 22:16:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:07,258 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 22:16:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:16:07,259 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-14 22:16:07,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:07,283 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 22:16:07,284 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 22:16:07,297 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:16:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 22:16:07,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 22:16:07,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 22:16:07,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 22:16:07,404 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 40 [2020-10-14 22:16:07,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:07,404 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 22:16:07,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:16:07,405 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 22:16:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-14 22:16:07,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:07,410 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:07,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:16:07,411 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:07,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:07,411 INFO L82 PathProgramCache]: Analyzing trace with hash 2017280877, now seen corresponding path program 1 times [2020-10-14 22:16:07,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:07,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277945402] [2020-10-14 22:16:07,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:07,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:07,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:08,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:08,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 22:16:08,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:08,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 811 [2020-10-14 22:16:08,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:08,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:16:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:08,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:16:08,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 30 [2020-10-14 22:16:08,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:08,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:08,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:08,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:08,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:16:08,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:08,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:08,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:08,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:08,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:08,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:08,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:08,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:08,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:16:08,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:08,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 22:16:08,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:08,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:08,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:08,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:08,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:16:08,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:16:08,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277945402] [2020-10-14 22:16:08,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:16:08,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:16:08,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658269828] [2020-10-14 22:16:08,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:16:08,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:08,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:16:08,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:16:08,589 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 8 states. [2020-10-14 22:16:12,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:12,147 INFO L93 Difference]: Finished difference Result 1739 states and 2661 transitions. [2020-10-14 22:16:12,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:16:12,148 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-10-14 22:16:12,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:12,156 INFO L225 Difference]: With dead ends: 1739 [2020-10-14 22:16:12,157 INFO L226 Difference]: Without dead ends: 1056 [2020-10-14 22:16:12,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:16:12,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2020-10-14 22:16:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1039. [2020-10-14 22:16:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2020-10-14 22:16:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1423 transitions. [2020-10-14 22:16:12,214 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1423 transitions. Word has length 115 [2020-10-14 22:16:12,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:12,215 INFO L479 AbstractCegarLoop]: Abstraction has 1039 states and 1423 transitions. [2020-10-14 22:16:12,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:16:12,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1423 transitions. [2020-10-14 22:16:12,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-14 22:16:12,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:12,218 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:12,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:16:12,219 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:12,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:12,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1839619576, now seen corresponding path program 1 times [2020-10-14 22:16:12,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:12,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127515281] [2020-10-14 22:16:12,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:12,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:12,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:12,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:12,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 22:16:12,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 656 [2020-10-14 22:16:12,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:12,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:12,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:16:12,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:12,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:16:12,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:16:12,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:12,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:12,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:12,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:16:12,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:12,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:12,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:13,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:13,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:13,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:16:13,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:13,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 22:16:13,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:13,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:13,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:13,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:16:13,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:13,171 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:16:13,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127515281] [2020-10-14 22:16:13,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:16:13,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:16:13,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72257350] [2020-10-14 22:16:13,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:13,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:13,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:13,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:13,174 INFO L87 Difference]: Start difference. First operand 1039 states and 1423 transitions. Second operand 7 states. [2020-10-14 22:16:16,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:16,986 INFO L93 Difference]: Finished difference Result 3164 states and 4409 transitions. [2020-10-14 22:16:16,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:16:16,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-14 22:16:16,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:16,999 INFO L225 Difference]: With dead ends: 3164 [2020-10-14 22:16:16,999 INFO L226 Difference]: Without dead ends: 2131 [2020-10-14 22:16:17,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:16:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2020-10-14 22:16:17,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 2088. [2020-10-14 22:16:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2020-10-14 22:16:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2623 transitions. [2020-10-14 22:16:17,066 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2623 transitions. Word has length 116 [2020-10-14 22:16:17,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:17,067 INFO L479 AbstractCegarLoop]: Abstraction has 2088 states and 2623 transitions. [2020-10-14 22:16:17,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2623 transitions. [2020-10-14 22:16:17,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-14 22:16:17,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:17,073 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:16:17,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:16:17,073 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:17,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:17,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1787198664, now seen corresponding path program 1 times [2020-10-14 22:16:17,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:17,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150807635] [2020-10-14 22:16:17,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:17,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:17,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:17,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:18,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:18,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:18,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:20,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:20,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-14 22:16:20,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 22:16:20,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3436 [2020-10-14 22:16:20,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:20,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:16:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:16:20,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 22:16:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:20,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:20,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:20,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:20,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:20,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:20,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:16:20,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:20,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:20,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:20,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:16:20,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:20,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:20,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:20,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:20,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:20,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:16:20,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:16:20,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 22:16:20,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:20,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:16:20,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:20,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:16:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:20,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:20,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:20,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:16:20,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:20,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 22:16:20,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:20,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:20,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:20,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:16:20,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:20,995 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:16:20,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150807635] [2020-10-14 22:16:20,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:20,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:20,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215724709] [2020-10-14 22:16:20,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:20,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:20,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:20,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:21,000 INFO L87 Difference]: Start difference. First operand 2088 states and 2623 transitions. Second operand 7 states. [2020-10-14 22:16:24,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:24,667 INFO L93 Difference]: Finished difference Result 4921 states and 6358 transitions. [2020-10-14 22:16:24,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:16:24,671 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-10-14 22:16:24,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:24,690 INFO L225 Difference]: With dead ends: 4921 [2020-10-14 22:16:24,690 INFO L226 Difference]: Without dead ends: 2839 [2020-10-14 22:16:24,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 22:16:24,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2839 states. [2020-10-14 22:16:24,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2839 to 2453. [2020-10-14 22:16:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2453 states. [2020-10-14 22:16:24,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3049 transitions. [2020-10-14 22:16:24,795 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3049 transitions. Word has length 203 [2020-10-14 22:16:24,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:24,796 INFO L479 AbstractCegarLoop]: Abstraction has 2453 states and 3049 transitions. [2020-10-14 22:16:24,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:24,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3049 transitions. [2020-10-14 22:16:24,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2020-10-14 22:16:24,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:24,807 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:16:24,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:16:24,807 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:24,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:24,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1874683580, now seen corresponding path program 1 times [2020-10-14 22:16:24,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:24,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840054944] [2020-10-14 22:16:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:24,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:25,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:29,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:29,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:29,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 398 [2020-10-14 22:16:29,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:29,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 22:16:29,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:29,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:29,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:16:29,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:16:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:30,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:30,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:30,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:30,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:30,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:16:30,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:30,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:30,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:30,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:30,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:30,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:16:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:30,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:30,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:16:30,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 22:16:30,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:30,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:30,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:30,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 22:16:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:30,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 22:16:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:30,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:30,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:16:30,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:30,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 22:16:30,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:30,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:16:30,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:30,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 22:16:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:30,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:30,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:30,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:30,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:30,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:16:30,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:30,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:30,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:30,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:16:30,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:30,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:31,022 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 200 proven. 114 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 22:16:31,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840054944] [2020-10-14 22:16:31,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:31,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:16:31,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183341552] [2020-10-14 22:16:31,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:16:31,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:31,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:16:31,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:16:31,025 INFO L87 Difference]: Start difference. First operand 2453 states and 3049 transitions. Second operand 8 states. [2020-10-14 22:16:37,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:37,518 INFO L93 Difference]: Finished difference Result 8380 states and 10798 transitions. [2020-10-14 22:16:37,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:16:37,519 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 384 [2020-10-14 22:16:37,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:37,546 INFO L225 Difference]: With dead ends: 8380 [2020-10-14 22:16:37,547 INFO L226 Difference]: Without dead ends: 5933 [2020-10-14 22:16:37,554 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-10-14 22:16:37,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5933 states. [2020-10-14 22:16:37,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5933 to 5583. [2020-10-14 22:16:37,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5583 states. [2020-10-14 22:16:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 6668 transitions. [2020-10-14 22:16:37,682 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 6668 transitions. Word has length 384 [2020-10-14 22:16:37,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:37,683 INFO L479 AbstractCegarLoop]: Abstraction has 5583 states and 6668 transitions. [2020-10-14 22:16:37,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:16:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 6668 transitions. [2020-10-14 22:16:37,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2020-10-14 22:16:37,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:37,698 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:37,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:16:37,698 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:37,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:37,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1128684601, now seen corresponding path program 1 times [2020-10-14 22:16:37,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:37,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315942647] [2020-10-14 22:16:37,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:37,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:38,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:38,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:38,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:41,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:41,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 509 [2020-10-14 22:16:41,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:41,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4213 [2020-10-14 22:16:41,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:41,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:41,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 22:16:41,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 22:16:41,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:42,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:42,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:42,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:42,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:42,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:42,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:16:42,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:42,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:42,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:42,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:42,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:42,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:42,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:42,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:42,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:42,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 22:16:42,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:42,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 22:16:42,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:42,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:42,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:42,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 22:16:42,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:42,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 22:16:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:42,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:42,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 22:16:42,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-14 22:16:42,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:42,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:42,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:42,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:42,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 22:16:42,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:16:43,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2020-10-14 22:16:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:43,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:43,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:43,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:43,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:43,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 22:16:43,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:43,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:43,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:16:43,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:43,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:43,823 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 191 proven. 114 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-14 22:16:43,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315942647] [2020-10-14 22:16:43,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:43,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:16:43,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366772819] [2020-10-14 22:16:43,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:16:43,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:43,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:16:43,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:16:43,828 INFO L87 Difference]: Start difference. First operand 5583 states and 6668 transitions. Second operand 8 states. [2020-10-14 22:16:49,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:49,016 INFO L93 Difference]: Finished difference Result 12568 states and 15335 transitions. [2020-10-14 22:16:49,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:16:49,017 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 495 [2020-10-14 22:16:49,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:49,051 INFO L225 Difference]: With dead ends: 12568 [2020-10-14 22:16:49,051 INFO L226 Difference]: Without dead ends: 6917 [2020-10-14 22:16:49,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 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 22:16:49,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6917 states. [2020-10-14 22:16:49,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6917 to 6905. [2020-10-14 22:16:49,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6905 states. [2020-10-14 22:16:49,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 7586 transitions. [2020-10-14 22:16:49,210 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 7586 transitions. Word has length 495 [2020-10-14 22:16:49,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:49,210 INFO L479 AbstractCegarLoop]: Abstraction has 6905 states and 7586 transitions. [2020-10-14 22:16:49,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:16:49,210 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 7586 transitions. [2020-10-14 22:16:49,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2020-10-14 22:16:49,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:49,232 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:49,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:16:49,233 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:49,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:49,233 INFO L82 PathProgramCache]: Analyzing trace with hash 737991404, now seen corresponding path program 1 times [2020-10-14 22:16:49,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:49,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643426958] [2020-10-14 22:16:49,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:49,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:49,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:51,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:52,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:54,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:54,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 735 [2020-10-14 22:16:54,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:16:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 22:16:54,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:54,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 22:16:54,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 22:16:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:54,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:16:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:54,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:54,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:54,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:16:54,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:54,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:16:54,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:54,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:54,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:54,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:54,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:16:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:54,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:54,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:54,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:16:54,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:54,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 22:16:54,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:54,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:54,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:16:54,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:16:54,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 22:16:54,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:54,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:16:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:54,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:55,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:55,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:16:55,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:55,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-14 22:16:55,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:55,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:55,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:16:55,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:16:55,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 22:16:55,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:16:55,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 22:16:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:55,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:55,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:55,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:16:55,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:55,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 22:16:55,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:55,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:55,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:55,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-14 22:16:55,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:16:55,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-14 22:16:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:55,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:16:55,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:16:55,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:16:55,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:16:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:16:55,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:16:55,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:16:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:16:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:16:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:16:55,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:16:56,183 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 299 proven. 273 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-10-14 22:16:56,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643426958] [2020-10-14 22:16:56,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:16:56,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:16:56,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535449733] [2020-10-14 22:16:56,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:16:56,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:16:56,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:16:56,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:16:56,186 INFO L87 Difference]: Start difference. First operand 6905 states and 7586 transitions. Second operand 7 states. [2020-10-14 22:16:59,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:16:59,385 INFO L93 Difference]: Finished difference Result 14835 states and 16412 transitions. [2020-10-14 22:16:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:16:59,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 719 [2020-10-14 22:16:59,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:16:59,429 INFO L225 Difference]: With dead ends: 14835 [2020-10-14 22:16:59,429 INFO L226 Difference]: Without dead ends: 8273 [2020-10-14 22:16:59,448 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 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 22:16:59,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8273 states. [2020-10-14 22:16:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8273 to 7589. [2020-10-14 22:16:59,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7589 states. [2020-10-14 22:16:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7589 states to 7589 states and 8289 transitions. [2020-10-14 22:16:59,602 INFO L78 Accepts]: Start accepts. Automaton has 7589 states and 8289 transitions. Word has length 719 [2020-10-14 22:16:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:16:59,604 INFO L479 AbstractCegarLoop]: Abstraction has 7589 states and 8289 transitions. [2020-10-14 22:16:59,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:16:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7589 states and 8289 transitions. [2020-10-14 22:16:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2020-10-14 22:16:59,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:16:59,616 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:59,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:16:59,616 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:16:59,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:16:59,617 INFO L82 PathProgramCache]: Analyzing trace with hash -630597639, now seen corresponding path program 1 times [2020-10-14 22:16:59,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:16:59,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [559758948] [2020-10-14 22:16:59,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:16:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:16:59,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:00,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:00,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 738 [2020-10-14 22:17:02,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:17:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2487 [2020-10-14 22:17:02,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 416 [2020-10-14 22:17:02,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 22:17:02,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:02,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:02,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:02,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:17:02,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:17:02,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:02,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:02,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:17:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 22:17:02,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:17:02,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 22:17:02,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 22:17:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:17:02,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 22:17:02,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:02,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 22:17:02,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:02,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2020-10-14 22:17:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:02,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:02,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:02,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:17:02,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:02,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 22:17:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:02,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 459 proven. 114 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-14 22:17:03,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [559758948] [2020-10-14 22:17:03,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:03,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:03,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273115089] [2020-10-14 22:17:03,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:03,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:03,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:03,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:03,108 INFO L87 Difference]: Start difference. First operand 7589 states and 8289 transitions. Second operand 7 states. [2020-10-14 22:17:06,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:06,022 INFO L93 Difference]: Finished difference Result 16203 states and 17861 transitions. [2020-10-14 22:17:06,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:17:06,023 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 722 [2020-10-14 22:17:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:06,053 INFO L225 Difference]: With dead ends: 16203 [2020-10-14 22:17:06,053 INFO L226 Difference]: Without dead ends: 8957 [2020-10-14 22:17:06,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 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 22:17:06,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8957 states. [2020-10-14 22:17:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8957 to 8612. [2020-10-14 22:17:06,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8612 states. [2020-10-14 22:17:06,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8612 states to 8612 states and 9352 transitions. [2020-10-14 22:17:06,227 INFO L78 Accepts]: Start accepts. Automaton has 8612 states and 9352 transitions. Word has length 722 [2020-10-14 22:17:06,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:06,228 INFO L479 AbstractCegarLoop]: Abstraction has 8612 states and 9352 transitions. [2020-10-14 22:17:06,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:06,229 INFO L276 IsEmpty]: Start isEmpty. Operand 8612 states and 9352 transitions. [2020-10-14 22:17:06,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 922 [2020-10-14 22:17:06,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:06,253 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:17:06,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:17:06,253 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:06,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:06,254 INFO L82 PathProgramCache]: Analyzing trace with hash 665741619, now seen corresponding path program 1 times [2020-10-14 22:17:06,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:06,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480291580] [2020-10-14 22:17:06,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:06,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:06,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:08,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:08,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:09,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 939 [2020-10-14 22:17:11,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:11,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-14 22:17:11,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:11,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 22:17:11,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 22:17:11,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:11,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:11,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:11,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:11,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:11,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:11,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:11,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:11,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:11,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:11,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:11,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:17:11,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:11,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:11,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:11,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:11,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:11,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:11,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 22:17:11,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:11,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:11,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:17:11,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:11,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:12,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:12,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:12,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:17:12,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:12,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 22:17:12,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:12,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:12,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:12,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:12,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 22:17:12,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:12,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-14 22:17:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:12,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:12,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:12,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:12,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-14 22:17:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:12,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:12,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:12,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:17:12,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:12,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:12,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:12,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:17:12,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:12,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:12,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1594 backedges. 506 proven. 252 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2020-10-14 22:17:12,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480291580] [2020-10-14 22:17:12,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:12,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:12,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577060116] [2020-10-14 22:17:12,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:12,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:12,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:12,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:12,696 INFO L87 Difference]: Start difference. First operand 8612 states and 9352 transitions. Second operand 7 states. [2020-10-14 22:17:16,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:16,008 INFO L93 Difference]: Finished difference Result 19976 states and 21903 transitions. [2020-10-14 22:17:16,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:17:16,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 921 [2020-10-14 22:17:16,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:16,046 INFO L225 Difference]: With dead ends: 19976 [2020-10-14 22:17:16,046 INFO L226 Difference]: Without dead ends: 11707 [2020-10-14 22:17:16,064 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 22:17:16,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11707 states. [2020-10-14 22:17:16,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11707 to 11008. [2020-10-14 22:17:16,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11008 states. [2020-10-14 22:17:16,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11008 states to 11008 states and 11945 transitions. [2020-10-14 22:17:16,248 INFO L78 Accepts]: Start accepts. Automaton has 11008 states and 11945 transitions. Word has length 921 [2020-10-14 22:17:16,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:16,249 INFO L479 AbstractCegarLoop]: Abstraction has 11008 states and 11945 transitions. [2020-10-14 22:17:16,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:16,249 INFO L276 IsEmpty]: Start isEmpty. Operand 11008 states and 11945 transitions. [2020-10-14 22:17:16,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 930 [2020-10-14 22:17:16,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:16,275 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-14 22:17:16,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:17:16,276 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:16,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:16,276 INFO L82 PathProgramCache]: Analyzing trace with hash -111084000, now seen corresponding path program 1 times [2020-10-14 22:17:16,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:16,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024343319] [2020-10-14 22:17:16,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:16,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:16,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:18,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:18,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 945 [2020-10-14 22:17:18,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:18,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2441 [2020-10-14 22:17:18,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:18,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 641 [2020-10-14 22:17:18,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:17:18,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:19,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:19,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:19,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:19,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:19,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:19,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:19,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:17:19,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:19,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:17:19,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:19,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:17:19,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:19,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:19,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:19,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:19,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:17:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:17:19,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:19,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 22:17:19,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:19,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 22:17:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:19,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:17:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:19,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:19,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:17:19,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:19,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 22:17:19,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:19,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:19,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:19,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:19,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:17:19,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:20,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1310 backedges. 760 proven. 2 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2020-10-14 22:17:20,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024343319] [2020-10-14 22:17:20,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:20,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:20,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415289310] [2020-10-14 22:17:20,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:20,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:20,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:20,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:20,215 INFO L87 Difference]: Start difference. First operand 11008 states and 11945 transitions. Second operand 7 states. [2020-10-14 22:17:22,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:22,782 INFO L93 Difference]: Finished difference Result 22703 states and 24820 transitions. [2020-10-14 22:17:22,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:17:22,785 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 929 [2020-10-14 22:17:22,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:22,825 INFO L225 Difference]: With dead ends: 22703 [2020-10-14 22:17:22,826 INFO L226 Difference]: Without dead ends: 12038 [2020-10-14 22:17:22,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 22:17:22,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12038 states. [2020-10-14 22:17:23,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12038 to 12032. [2020-10-14 22:17:23,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12032 states. [2020-10-14 22:17:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12032 states to 12032 states and 13138 transitions. [2020-10-14 22:17:23,265 INFO L78 Accepts]: Start accepts. Automaton has 12032 states and 13138 transitions. Word has length 929 [2020-10-14 22:17:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:23,268 INFO L479 AbstractCegarLoop]: Abstraction has 12032 states and 13138 transitions. [2020-10-14 22:17:23,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:23,268 INFO L276 IsEmpty]: Start isEmpty. Operand 12032 states and 13138 transitions. [2020-10-14 22:17:23,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2020-10-14 22:17:23,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:23,314 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2020-10-14 22:17:23,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:17:23,315 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:23,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:23,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1739218457, now seen corresponding path program 1 times [2020-10-14 22:17:23,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:23,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142007409] [2020-10-14 22:17:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:23,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:24,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:26,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:27,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:27,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:28,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:28,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1086 [2020-10-14 22:17:28,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:28,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-14 22:17:28,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:28,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-14 22:17:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 22:17:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:28,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:28,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:28,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:28,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:28,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:28,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:17:28,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:28,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:28,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:28,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:28,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:28,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:28,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:28,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:28,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:28,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:17:28,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:28,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:28,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:28,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:28,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:28,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:28,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:28,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:28,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:28,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:28,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:28,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:17:28,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:28,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:28,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:28,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:28,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:28,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:28,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:28,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:28,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:28,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:28,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:17:28,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:28,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:28,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:28,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:28,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:28,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:28,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:28,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:17:28,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:28,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:17:28,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:28,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:28,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:28,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:28,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:28,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:29,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:17:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:29,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:29,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:29,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:29,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:29,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 22:17:29,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:29,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:29,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:17:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:29,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:17:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:29,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:29,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:29,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:17:29,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:29,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-14 22:17:29,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:29,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:29,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:29,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:29,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 22:17:29,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:30,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 979 proven. 2 refuted. 0 times theorem prover too weak. 1099 trivial. 0 not checked. [2020-10-14 22:17:30,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142007409] [2020-10-14 22:17:30,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:30,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:30,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32399706] [2020-10-14 22:17:30,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:30,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:30,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:30,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:30,509 INFO L87 Difference]: Start difference. First operand 12032 states and 13138 transitions. Second operand 7 states. [2020-10-14 22:17:33,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:33,539 INFO L93 Difference]: Finished difference Result 24408 states and 26643 transitions. [2020-10-14 22:17:33,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:17:33,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1066 [2020-10-14 22:17:33,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:33,567 INFO L225 Difference]: With dead ends: 24408 [2020-10-14 22:17:33,567 INFO L226 Difference]: Without dead ends: 12719 [2020-10-14 22:17:33,587 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 22:17:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12719 states. [2020-10-14 22:17:33,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12719 to 12713. [2020-10-14 22:17:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12713 states. [2020-10-14 22:17:33,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12713 states to 12713 states and 13840 transitions. [2020-10-14 22:17:33,756 INFO L78 Accepts]: Start accepts. Automaton has 12713 states and 13840 transitions. Word has length 1066 [2020-10-14 22:17:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:33,758 INFO L479 AbstractCegarLoop]: Abstraction has 12713 states and 13840 transitions. [2020-10-14 22:17:33,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 12713 states and 13840 transitions. [2020-10-14 22:17:33,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2020-10-14 22:17:33,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:33,785 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:17:33,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:17:33,786 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:33,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:33,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1114346251, now seen corresponding path program 1 times [2020-10-14 22:17:33,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:33,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909796644] [2020-10-14 22:17:33,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:34,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:34,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:34,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:38,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1097 [2020-10-14 22:17:39,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:17:39,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5095 [2020-10-14 22:17:39,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 867 [2020-10-14 22:17:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-14 22:17:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:39,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:39,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:39,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:39,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:39,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:39,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:39,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:39,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:17:39,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:39,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:39,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:39,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:39,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:39,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:17:39,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:39,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:39,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:39,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:39,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:17:39,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:17:39,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:39,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:17:39,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:39,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:39,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:39,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:39,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:17:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:39,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 22:17:39,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:17:39,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:39,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:39,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 22:17:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:39,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:17:39,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:39,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:17:39,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:39,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 22:17:39,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:39,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 855 [2020-10-14 22:17:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:39,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:39,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:39,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:17:39,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:39,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 22:17:39,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:39,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-14 22:17:39,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2452 backedges. 999 proven. 2 refuted. 0 times theorem prover too weak. 1451 trivial. 0 not checked. [2020-10-14 22:17:40,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [909796644] [2020-10-14 22:17:40,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:40,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:17:40,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875242256] [2020-10-14 22:17:40,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:17:40,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:40,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:17:40,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:17:40,267 INFO L87 Difference]: Start difference. First operand 12713 states and 13840 transitions. Second operand 7 states. [2020-10-14 22:17:43,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:43,318 INFO L93 Difference]: Finished difference Result 29190 states and 32090 transitions. [2020-10-14 22:17:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:17:43,324 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1075 [2020-10-14 22:17:43,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:43,359 INFO L225 Difference]: With dead ends: 29190 [2020-10-14 22:17:43,360 INFO L226 Difference]: Without dead ends: 16118 [2020-10-14 22:17:43,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:17:43,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16118 states. [2020-10-14 22:17:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16118 to 15404. [2020-10-14 22:17:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15404 states. [2020-10-14 22:17:43,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15404 states to 15404 states and 16548 transitions. [2020-10-14 22:17:43,623 INFO L78 Accepts]: Start accepts. Automaton has 15404 states and 16548 transitions. Word has length 1075 [2020-10-14 22:17:43,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:43,626 INFO L479 AbstractCegarLoop]: Abstraction has 15404 states and 16548 transitions. [2020-10-14 22:17:43,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:17:43,626 INFO L276 IsEmpty]: Start isEmpty. Operand 15404 states and 16548 transitions. [2020-10-14 22:17:43,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1098 [2020-10-14 22:17:43,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:43,667 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2020-10-14 22:17:43,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 22:17:43,668 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:43,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:43,669 INFO L82 PathProgramCache]: Analyzing trace with hash 448783924, now seen corresponding path program 1 times [2020-10-14 22:17:43,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:43,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1276969996] [2020-10-14 22:17:43,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:44,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:46,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:47,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:48,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:48,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1117 [2020-10-14 22:17:48,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:48,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 22:17:48,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:48,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:17:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 802 [2020-10-14 22:17:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 314 [2020-10-14 22:17:48,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:49,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:49,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:17:49,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:49,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:49,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:49,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:17:49,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:49,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:49,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:49,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:17:49,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:49,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:17:49,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:49,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:17:49,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:49,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-14 22:17:49,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:49,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 22:17:49,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:17:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:17:49,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:49,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 22:17:49,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:49,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:17:49,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:49,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:17:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:49,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:49,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:49,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:17:49,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:17:49,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 22:17:49,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:49,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 22:17:49,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2306 backedges. 237 proven. 6 refuted. 0 times theorem prover too weak. 2063 trivial. 0 not checked. [2020-10-14 22:17:50,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1276969996] [2020-10-14 22:17:50,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:17:50,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:17:50,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884346782] [2020-10-14 22:17:50,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:17:50,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:17:50,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:17:50,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:17:50,390 INFO L87 Difference]: Start difference. First operand 15404 states and 16548 transitions. Second operand 5 states. [2020-10-14 22:17:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:17:52,646 INFO L93 Difference]: Finished difference Result 30467 states and 32751 transitions. [2020-10-14 22:17:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:17:52,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1097 [2020-10-14 22:17:52,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:17:52,681 INFO L225 Difference]: With dead ends: 30467 [2020-10-14 22:17:52,681 INFO L226 Difference]: Without dead ends: 15406 [2020-10-14 22:17:52,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 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 22:17:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15406 states. [2020-10-14 22:17:52,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15406 to 15404. [2020-10-14 22:17:52,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15404 states. [2020-10-14 22:17:52,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15404 states to 15404 states and 16412 transitions. [2020-10-14 22:17:52,906 INFO L78 Accepts]: Start accepts. Automaton has 15404 states and 16412 transitions. Word has length 1097 [2020-10-14 22:17:52,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:17:52,908 INFO L479 AbstractCegarLoop]: Abstraction has 15404 states and 16412 transitions. [2020-10-14 22:17:52,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:17:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 15404 states and 16412 transitions. [2020-10-14 22:17:52,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1113 [2020-10-14 22:17:52,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:17:52,937 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 22:17:52,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 22:17:52,938 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:17:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:17:52,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1122476351, now seen corresponding path program 1 times [2020-10-14 22:17:52,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:17:52,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [9559518] [2020-10-14 22:17:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:17:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:53,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:55,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:55,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:56,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1132 [2020-10-14 22:17:58,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:17:58,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 22:17:58,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:58,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 22:17:58,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 22:17:58,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:17:58,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:17:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:17:58,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:17:58,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:58,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:17:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:17:58,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:17:58,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:58,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:17:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:17:58,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:17:58,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:58,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:17:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:17:58,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:17:58,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:17:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 22:17:58,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:17:58,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:17:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:17:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 22:17:58,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:58,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 22:17:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:58,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:58,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:58,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:17:58,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 22:17:58,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:58,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:17:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:17:58,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 22:17:58,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:17:59,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 931 [2020-10-14 22:17:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:17:59,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:17:59,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:17:59,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:17:59,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:17:59,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:17:59,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:17:59,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:17:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:17:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 22:17:59,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:17:59,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:00,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2196 backedges. 878 proven. 148 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2020-10-14 22:18:00,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [9559518] [2020-10-14 22:18:00,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:00,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:00,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676078001] [2020-10-14 22:18:00,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:00,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:00,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:00,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:00,011 INFO L87 Difference]: Start difference. First operand 15404 states and 16412 transitions. Second operand 7 states. [2020-10-14 22:18:03,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:03,401 INFO L93 Difference]: Finished difference Result 31494 states and 33721 transitions. [2020-10-14 22:18:03,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:18:03,402 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1112 [2020-10-14 22:18:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:03,436 INFO L225 Difference]: With dead ends: 31494 [2020-10-14 22:18:03,436 INFO L226 Difference]: Without dead ends: 16094 [2020-10-14 22:18:03,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:18:03,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16094 states. [2020-10-14 22:18:03,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16094 to 16078. [2020-10-14 22:18:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16078 states. [2020-10-14 22:18:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16078 states to 16078 states and 17104 transitions. [2020-10-14 22:18:03,793 INFO L78 Accepts]: Start accepts. Automaton has 16078 states and 17104 transitions. Word has length 1112 [2020-10-14 22:18:03,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:03,795 INFO L479 AbstractCegarLoop]: Abstraction has 16078 states and 17104 transitions. [2020-10-14 22:18:03,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:03,795 INFO L276 IsEmpty]: Start isEmpty. Operand 16078 states and 17104 transitions. [2020-10-14 22:18:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1211 [2020-10-14 22:18:03,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:03,835 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 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, 1] [2020-10-14 22:18:03,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 22:18:03,835 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:03,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:03,836 INFO L82 PathProgramCache]: Analyzing trace with hash -300340069, now seen corresponding path program 1 times [2020-10-14 22:18:03,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:03,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094830088] [2020-10-14 22:18:03,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:04,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:04,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:06,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:06,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:08,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1230 [2020-10-14 22:18:09,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 22:18:09,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 22:18:09,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1039 [2020-10-14 22:18:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 22:18:09,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:09,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:09,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:09,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:09,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:09,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:09,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:09,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:09,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:09,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:09,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:18:09,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:09,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:09,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:09,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:18:09,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 22:18:09,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:09,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:18:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:09,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:18:09,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:09,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 22:18:09,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:09,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:09,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:09,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:09,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:18:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:09,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:18:09,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:09,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 22:18:09,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:09,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:09,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:09,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:09,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-10-14 22:18:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:09,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:18:09,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 22:18:09,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:09,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:18:09,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:09,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-14 22:18:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:09,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:09,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:09,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 22:18:09,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:09,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 22:18:09,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:09,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:09,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:09,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:09,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 22:18:09,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2632 backedges. 931 proven. 2 refuted. 0 times theorem prover too weak. 1699 trivial. 0 not checked. [2020-10-14 22:18:10,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094830088] [2020-10-14 22:18:10,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:10,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:10,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258222835] [2020-10-14 22:18:10,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:10,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:10,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:10,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:10,612 INFO L87 Difference]: Start difference. First operand 16078 states and 17104 transitions. Second operand 7 states. [2020-10-14 22:18:13,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:13,672 INFO L93 Difference]: Finished difference Result 34212 states and 36510 transitions. [2020-10-14 22:18:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:13,673 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1210 [2020-10-14 22:18:13,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:13,707 INFO L225 Difference]: With dead ends: 34212 [2020-10-14 22:18:13,707 INFO L226 Difference]: Without dead ends: 16428 [2020-10-14 22:18:13,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:18:13,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16428 states. [2020-10-14 22:18:13,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16428 to 16392. [2020-10-14 22:18:13,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16392 states. [2020-10-14 22:18:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16392 states to 16392 states and 17172 transitions. [2020-10-14 22:18:13,958 INFO L78 Accepts]: Start accepts. Automaton has 16392 states and 17172 transitions. Word has length 1210 [2020-10-14 22:18:13,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:13,960 INFO L479 AbstractCegarLoop]: Abstraction has 16392 states and 17172 transitions. [2020-10-14 22:18:13,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:13,960 INFO L276 IsEmpty]: Start isEmpty. Operand 16392 states and 17172 transitions. [2020-10-14 22:18:14,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1742 [2020-10-14 22:18:14,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:14,015 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:18:14,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 22:18:14,016 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:14,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:14,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1635762444, now seen corresponding path program 1 times [2020-10-14 22:18:14,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:14,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1876938740] [2020-10-14 22:18:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:14,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:14,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:15,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:19,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1767 [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1039 [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:19,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:19,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:19,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:19,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:19,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:18:19,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:19,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:19,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:19,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:19,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:19,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:19,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:19,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:19,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:19,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:19,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:18:19,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:19,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:18:19,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:19,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:19,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:19,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:19,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:19,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:18:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:19,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:19,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:19,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:18:19,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:19,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:18:19,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:19,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:19,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:19,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:19,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:18:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:19,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:19,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:19,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:18:19,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:19,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 22:18:19,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:19,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:19,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:19,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:19,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:19,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-10-14 22:18:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:19,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:18:20,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:20,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-14 22:18:20,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:20,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:20,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 22:18:20,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:20,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-14 22:18:20,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:20,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:20,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:20,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-14 22:18:20,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:20,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:20,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:20,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1302 [2020-10-14 22:18:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:20,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:20,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:20,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:18:20,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:20,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:18:20,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:20,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:20,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1414 [2020-10-14 22:18:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:20,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:18:20,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:18:20,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:20,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:18:20,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:20,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:20,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:18:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:20,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:20,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:20,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:18:20,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:20,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:20,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:20,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:20,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:20,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:22,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5069 backedges. 1330 proven. 381 refuted. 0 times theorem prover too weak. 3358 trivial. 0 not checked. [2020-10-14 22:18:22,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1876938740] [2020-10-14 22:18:22,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:22,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:22,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976802368] [2020-10-14 22:18:22,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:22,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:22,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:22,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:22,328 INFO L87 Difference]: Start difference. First operand 16392 states and 17172 transitions. Second operand 7 states. [2020-10-14 22:18:25,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:25,267 INFO L93 Difference]: Finished difference Result 32461 states and 34025 transitions. [2020-10-14 22:18:25,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:18:25,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1741 [2020-10-14 22:18:25,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:25,300 INFO L225 Difference]: With dead ends: 32461 [2020-10-14 22:18:25,300 INFO L226 Difference]: Without dead ends: 16412 [2020-10-14 22:18:25,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:18:25,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16412 states. [2020-10-14 22:18:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16412 to 16392. [2020-10-14 22:18:25,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16392 states. [2020-10-14 22:18:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16392 states to 16392 states and 17158 transitions. [2020-10-14 22:18:25,501 INFO L78 Accepts]: Start accepts. Automaton has 16392 states and 17158 transitions. Word has length 1741 [2020-10-14 22:18:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:25,503 INFO L479 AbstractCegarLoop]: Abstraction has 16392 states and 17158 transitions. [2020-10-14 22:18:25,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:25,503 INFO L276 IsEmpty]: Start isEmpty. Operand 16392 states and 17158 transitions. [2020-10-14 22:18:25,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1778 [2020-10-14 22:18:25,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:25,540 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:25,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 22:18:25,540 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:25,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:25,541 INFO L82 PathProgramCache]: Analyzing trace with hash 925850525, now seen corresponding path program 1 times [2020-10-14 22:18:25,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:25,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803873095] [2020-10-14 22:18:25,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:25,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:26,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:26,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:30,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1805 [2020-10-14 22:18:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:18:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 22:18:30,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:30,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1077 [2020-10-14 22:18:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:31,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:31,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:31,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:31,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:31,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:31,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:31,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:31,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:31,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:31,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:31,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:31,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:31,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:31,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:18:31,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:31,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:31,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:31,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:31,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:31,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:18:31,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:31,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:18:31,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:31,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:31,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:31,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:31,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:18:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:31,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:31,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:31,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:18:31,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:18:31,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:31,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:31,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:31,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:31,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:18:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:31,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:31,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:31,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:18:31,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:31,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:18:31,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:31,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:31,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:31,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:31,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:31,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:31,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:18:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:31,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:31,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:31,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:18:31,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:31,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:18:31,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:31,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:31,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:31,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:31,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:18:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:31,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:31,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:31,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:18:31,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:31,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:18:31,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:31,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:31,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:31,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:31,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 22:18:31,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:31,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 22:18:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:31,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:31,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:31,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:31,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:31,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 22:18:31,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:31,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:31,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:31,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:31,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:32,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1338 [2020-10-14 22:18:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:32,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:32,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:32,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:32,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:32,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:18:32,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:32,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:32,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:32,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:18:32,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:32,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:32,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1450 [2020-10-14 22:18:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:32,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:32,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:32,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:18:32,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:32,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 22:18:32,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:32,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:32,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:32,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:18:32,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:32,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:32,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:18:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:32,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:32,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:32,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:18:32,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:32,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:18:32,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:32,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:32,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:32,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:32,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:32,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:34,325 INFO L134 CoverageAnalysis]: Checked inductivity of 5659 backedges. 1409 proven. 381 refuted. 0 times theorem prover too weak. 3869 trivial. 0 not checked. [2020-10-14 22:18:34,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803873095] [2020-10-14 22:18:34,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:34,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:34,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26620395] [2020-10-14 22:18:34,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:34,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:34,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:34,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:34,328 INFO L87 Difference]: Start difference. First operand 16392 states and 17158 transitions. Second operand 7 states. [2020-10-14 22:18:37,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:37,406 INFO L93 Difference]: Finished difference Result 33464 states and 35070 transitions. [2020-10-14 22:18:37,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:37,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1777 [2020-10-14 22:18:37,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:37,432 INFO L225 Difference]: With dead ends: 33464 [2020-10-14 22:18:37,433 INFO L226 Difference]: Without dead ends: 17415 [2020-10-14 22:18:37,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 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 22:18:37,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2020-10-14 22:18:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 17066. [2020-10-14 22:18:37,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17066 states. [2020-10-14 22:18:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17066 states to 17066 states and 17885 transitions. [2020-10-14 22:18:37,624 INFO L78 Accepts]: Start accepts. Automaton has 17066 states and 17885 transitions. Word has length 1777 [2020-10-14 22:18:37,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:37,625 INFO L479 AbstractCegarLoop]: Abstraction has 17066 states and 17885 transitions. [2020-10-14 22:18:37,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 17066 states and 17885 transitions. [2020-10-14 22:18:37,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1840 [2020-10-14 22:18:37,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:37,672 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:18:37,672 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 22:18:37,672 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:37,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:37,673 INFO L82 PathProgramCache]: Analyzing trace with hash -2077950591, now seen corresponding path program 1 times [2020-10-14 22:18:37,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:37,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575264478] [2020-10-14 22:18:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:38,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:38,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:42,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:42,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1867 [2020-10-14 22:18:42,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:18:42,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-14 22:18:42,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:42,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1139 [2020-10-14 22:18:42,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 22:18:42,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:43,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:43,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:43,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:43,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:43,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:43,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:43,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:43,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:43,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:43,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:43,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:18:43,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:18:43,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:43,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:18:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:43,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:18:43,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:43,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:18:43,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:43,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:43,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:43,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:43,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:18:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:43,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:18:43,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:18:43,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:43,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:43,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:18:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:43,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:18:43,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:43,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:18:43,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:43,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:18:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:43,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 22:18:43,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:43,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 22:18:43,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:43,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:43,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 22:18:43,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:43,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1127 [2020-10-14 22:18:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:43,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:43,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:43,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:43,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 22:18:43,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:43,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 22:18:43,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:44,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1400 [2020-10-14 22:18:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:44,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:44,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:44,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:44,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 22:18:44,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:44,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:44,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:44,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:18:44,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:44,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:44,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1512 [2020-10-14 22:18:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:44,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:44,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:18:44,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:44,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 22:18:44,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:44,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:44,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:44,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:18:44,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:44,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:44,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:18:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:44,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:44,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:44,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:18:44,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:44,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:44,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:44,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:44,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:44,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:44,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:46,398 INFO L134 CoverageAnalysis]: Checked inductivity of 5876 backedges. 1471 proven. 381 refuted. 0 times theorem prover too weak. 4024 trivial. 0 not checked. [2020-10-14 22:18:46,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575264478] [2020-10-14 22:18:46,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:46,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:46,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958856049] [2020-10-14 22:18:46,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:46,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:46,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:46,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:46,401 INFO L87 Difference]: Start difference. First operand 17066 states and 17885 transitions. Second operand 7 states. [2020-10-14 22:18:49,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:18:49,368 INFO L93 Difference]: Finished difference Result 34475 states and 36128 transitions. [2020-10-14 22:18:49,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:18:49,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1839 [2020-10-14 22:18:49,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:18:49,395 INFO L225 Difference]: With dead ends: 34475 [2020-10-14 22:18:49,396 INFO L226 Difference]: Without dead ends: 17752 [2020-10-14 22:18:49,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:18:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17752 states. [2020-10-14 22:18:49,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17752 to 16392. [2020-10-14 22:18:49,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16392 states. [2020-10-14 22:18:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16392 states to 16392 states and 17146 transitions. [2020-10-14 22:18:49,614 INFO L78 Accepts]: Start accepts. Automaton has 16392 states and 17146 transitions. Word has length 1839 [2020-10-14 22:18:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:18:49,615 INFO L479 AbstractCegarLoop]: Abstraction has 16392 states and 17146 transitions. [2020-10-14 22:18:49,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:18:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand 16392 states and 17146 transitions. [2020-10-14 22:18:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1852 [2020-10-14 22:18:49,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:18:49,663 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:18:49,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 22:18:49,664 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:18:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:18:49,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1149698292, now seen corresponding path program 1 times [2020-10-14 22:18:49,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:18:49,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099838990] [2020-10-14 22:18:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:18:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:49,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:50,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:50,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:54,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:54,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1881 [2020-10-14 22:18:54,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:18:54,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5099 [2020-10-14 22:18:54,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:54,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:54,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:54,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 22:18:54,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:18:54,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:18:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:55,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:55,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:55,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:18:55,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:55,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:55,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:55,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:55,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:55,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:55,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:55,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:55,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:18:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:55,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:55,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:55,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:18:55,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:55,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:18:55,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:55,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:55,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:55,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:18:55,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:18:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:55,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:55,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:55,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 22:18:55,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:55,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 22:18:55,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:55,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:55,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:18:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 22:18:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:55,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 22:18:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:55,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:55,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:55,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:18:55,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:55,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:18:55,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:55,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:55,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:18:55,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:18:55,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:18:55,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:55,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 22:18:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:55,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:56,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:56,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:18:56,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 22:18:56,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:56,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:18:56,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:56,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 22:18:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:56,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:56,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:56,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:18:56,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 22:18:56,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:56,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:18:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:56,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 22:18:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:56,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:56,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:56,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:18:56,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:56,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 22:18:56,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:56,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 22:18:56,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:56,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:56,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 22:18:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:56,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:56,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:18:56,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:18:56,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:56,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:18:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:56,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1139 [2020-10-14 22:18:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:56,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:56,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:56,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:18:56,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:56,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:18:56,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:56,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:18:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:56,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1412 [2020-10-14 22:18:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:56,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:56,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:56,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:56,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1524 [2020-10-14 22:18:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:56,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:56,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:56,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:18:56,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 22:18:56,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:56,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:18:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:56,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:18:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:18:56,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:18:56,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:18:56,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:18:56,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:18:56,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:18:56,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:18:56,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:18:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:18:56,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:18:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:18:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:18:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 6358 backedges. 643 proven. 766 refuted. 0 times theorem prover too weak. 4949 trivial. 0 not checked. [2020-10-14 22:18:58,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099838990] [2020-10-14 22:18:58,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:18:58,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:18:58,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43812395] [2020-10-14 22:18:58,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:18:58,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:18:58,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:18:58,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:18:58,201 INFO L87 Difference]: Start difference. First operand 16392 states and 17146 transitions. Second operand 7 states. [2020-10-14 22:19:01,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:01,601 INFO L93 Difference]: Finished difference Result 32449 states and 33953 transitions. [2020-10-14 22:19:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 22:19:01,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1851 [2020-10-14 22:19:01,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:01,627 INFO L225 Difference]: With dead ends: 32449 [2020-10-14 22:19:01,627 INFO L226 Difference]: Without dead ends: 16400 [2020-10-14 22:19:01,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 1 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 22:19:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16400 states. [2020-10-14 22:19:01,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16400 to 16392. [2020-10-14 22:19:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16392 states. [2020-10-14 22:19:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16392 states to 16392 states and 17142 transitions. [2020-10-14 22:19:01,793 INFO L78 Accepts]: Start accepts. Automaton has 16392 states and 17142 transitions. Word has length 1851 [2020-10-14 22:19:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:01,794 INFO L479 AbstractCegarLoop]: Abstraction has 16392 states and 17142 transitions. [2020-10-14 22:19:01,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:01,794 INFO L276 IsEmpty]: Start isEmpty. Operand 16392 states and 17142 transitions. [2020-10-14 22:19:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1854 [2020-10-14 22:19:01,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:01,830 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:19:01,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 22:19:01,830 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:01,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1346253160, now seen corresponding path program 1 times [2020-10-14 22:19:01,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:01,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408458601] [2020-10-14 22:19:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:02,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:02,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:07,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:07,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1883 [2020-10-14 22:19:07,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:19:07,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 22:19:07,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:07,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:07,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:07,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 22:19:07,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 22:19:07,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:07,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:07,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:07,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:07,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:07,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:07,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:07,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:07,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:07,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:07,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:07,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:07,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:07,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:07,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:07,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:19:07,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:07,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:07,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:07,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:07,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:07,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:07,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:19:07,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:07,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:19:07,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:07,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:07,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:07,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:07,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 22:19:07,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:07,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:19:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:07,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:07,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:07,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:07,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:07,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 22:19:07,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:07,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:07,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 22:19:07,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:07,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 22:19:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:19:08,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:19:08,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-10-14 22:19:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-14 22:19:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:19:08,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:19:08,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 22:19:08,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 879 [2020-10-14 22:19:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:19:08,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 22:19:08,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 22:19:08,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-14 22:19:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:19:08,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:19:08,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:19:08,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1141 [2020-10-14 22:19:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:08,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 22:19:08,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:19:08,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1414 [2020-10-14 22:19:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:19:08,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:19:08,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:19:08,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1526 [2020-10-14 22:19:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:19:08,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:19:08,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:19:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:08,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:19:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:08,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:08,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:08,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:19:08,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:08,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:19:08,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:08,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:08,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:08,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:08,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:08,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 6364 backedges. 643 proven. 766 refuted. 0 times theorem prover too weak. 4955 trivial. 0 not checked. [2020-10-14 22:19:10,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408458601] [2020-10-14 22:19:10,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:10,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:10,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713904008] [2020-10-14 22:19:10,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:10,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:10,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:10,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:10,497 INFO L87 Difference]: Start difference. First operand 16392 states and 17142 transitions. Second operand 7 states. [2020-10-14 22:19:13,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:13,787 INFO L93 Difference]: Finished difference Result 33460 states and 35061 transitions. [2020-10-14 22:19:13,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:13,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1853 [2020-10-14 22:19:13,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:13,816 INFO L225 Difference]: With dead ends: 33460 [2020-10-14 22:19:13,816 INFO L226 Difference]: Without dead ends: 17069 [2020-10-14 22:19:13,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:19:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17069 states. [2020-10-14 22:19:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17069 to 17061. [2020-10-14 22:19:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17061 states. [2020-10-14 22:19:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17061 states to 17061 states and 17688 transitions. [2020-10-14 22:19:14,053 INFO L78 Accepts]: Start accepts. Automaton has 17061 states and 17688 transitions. Word has length 1853 [2020-10-14 22:19:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:14,054 INFO L479 AbstractCegarLoop]: Abstraction has 17061 states and 17688 transitions. [2020-10-14 22:19:14,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 17061 states and 17688 transitions. [2020-10-14 22:19:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1899 [2020-10-14 22:19:14,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:14,111 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:19:14,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 22:19:14,111 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:14,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:14,112 INFO L82 PathProgramCache]: Analyzing trace with hash 409626906, now seen corresponding path program 1 times [2020-10-14 22:19:14,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:14,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49974555] [2020-10-14 22:19:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:14,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:14,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:19,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1930 [2020-10-14 22:19:19,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:19:19,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5118 [2020-10-14 22:19:19,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:19,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1126 [2020-10-14 22:19:19,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:19:19,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:19:19,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:19,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:19,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:19,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:19,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:19,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:19,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:19,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:19,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:19,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:19,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:19,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 22:19:19,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:19,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 22:19:19,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:19,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:19,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:19,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:19,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 22:19:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 22:19:20,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 22:19:20,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 22:19:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 22:19:20,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:19:20,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 22:19:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 22:19:20,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 22:19:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 22:19:20,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 22:19:20,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-14 22:19:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 22:19:20,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:19:20,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 924 [2020-10-14 22:19:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 22:19:20,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 22:19:20,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:20,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 22:19:20,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1112 [2020-10-14 22:19:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:19:20,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:19:20,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:20,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:20,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:19:20,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:20,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1186 [2020-10-14 22:19:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:20,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:20,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:20,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:20,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:20,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 22:19:20,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:20,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:19:20,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:20,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:21,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1459 [2020-10-14 22:19:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:21,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:21,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:19:21,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:21,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:19:21,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:21,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:21,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:19:21,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:21,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:21,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1571 [2020-10-14 22:19:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:21,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:21,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:19:21,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:21,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 22:19:21,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:21,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:21,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:21,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:19:21,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:21,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:21,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:19:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:21,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:21,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:21,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:19:21,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:21,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:19:21,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:21,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:21,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:21,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 7122 backedges. 974 proven. 215 refuted. 0 times theorem prover too weak. 5933 trivial. 0 not checked. [2020-10-14 22:19:22,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49974555] [2020-10-14 22:19:22,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:19:22,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:19:22,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827493868] [2020-10-14 22:19:22,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:19:22,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:19:22,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:19:22,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:19:22,777 INFO L87 Difference]: Start difference. First operand 17061 states and 17688 transitions. Second operand 7 states. [2020-10-14 22:19:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:19:26,024 INFO L93 Difference]: Finished difference Result 34146 states and 35476 transitions. [2020-10-14 22:19:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:19:26,025 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1898 [2020-10-14 22:19:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:19:26,047 INFO L225 Difference]: With dead ends: 34146 [2020-10-14 22:19:26,047 INFO L226 Difference]: Without dead ends: 17089 [2020-10-14 22:19:26,062 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 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 22:19:26,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17089 states. [2020-10-14 22:19:26,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17089 to 16724. [2020-10-14 22:19:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16724 states. [2020-10-14 22:19:26,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16724 states to 16724 states and 17241 transitions. [2020-10-14 22:19:26,205 INFO L78 Accepts]: Start accepts. Automaton has 16724 states and 17241 transitions. Word has length 1898 [2020-10-14 22:19:26,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:19:26,206 INFO L479 AbstractCegarLoop]: Abstraction has 16724 states and 17241 transitions. [2020-10-14 22:19:26,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:19:26,206 INFO L276 IsEmpty]: Start isEmpty. Operand 16724 states and 17241 transitions. [2020-10-14 22:19:26,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1958 [2020-10-14 22:19:26,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:19:26,239 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:19:26,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 22:19:26,239 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:19:26,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:19:26,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1880296754, now seen corresponding path program 1 times [2020-10-14 22:19:26,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:19:26,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026391460] [2020-10-14 22:19:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:19:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:26,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:27,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:31,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:31,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1987 [2020-10-14 22:19:31,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:19:31,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5128 [2020-10-14 22:19:31,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:31,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 641 [2020-10-14 22:19:31,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 22:19:31,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:31,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:19:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:31,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:31,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:31,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:19:31,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:31,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:19:31,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:31,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:31,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:31,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:31,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:19:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:31,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:31,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:31,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 22:19:31,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:31,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 22:19:31,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:31,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:31,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:31,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:31,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 22:19:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 22:19:32,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 22:19:32,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:32,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:32,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:32,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 22:19:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 22:19:32,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 22:19:32,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:19:32,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:32,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 22:19:32,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 22:19:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 22:19:32,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-14 22:19:32,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:19:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:19:32,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 22:19:32,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 767 [2020-10-14 22:19:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 22:19:32,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 22:19:32,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 260 [2020-10-14 22:19:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:32,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-14 22:19:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 22:19:32,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:19:32,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 22:19:32,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:32,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1171 [2020-10-14 22:19:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:32,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:32,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:19:32,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:32,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 22:19:32,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:32,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:32,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 22:19:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:32,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:32,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1245 [2020-10-14 22:19:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:32,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 22:19:33,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:33,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:19:33,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:33,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 22:19:33,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:33,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:33,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1518 [2020-10-14 22:19:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:33,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 22:19:33,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 22:19:33,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 22:19:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:33,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:33,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1630 [2020-10-14 22:19:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:33,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 22:19:33,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:33,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-14 22:19:33,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:33,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 22:19:33,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:33,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:19:33,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:19:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:19:33,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:19:33,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:19:33,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 22:19:33,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:19:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:19:33,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:19:33,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:19:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:19:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:19:33,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:19:33,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0