/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/Problem11_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 20:58:45,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 20:58:45,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 20:58:45,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 20:58:45,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 20:58:45,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 20:58:45,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 20:58:45,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 20:58:45,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 20:58:45,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 20:58:45,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 20:58:45,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 20:58:45,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 20:58:45,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 20:58:45,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 20:58:45,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 20:58:45,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 20:58:45,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 20:58:45,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 20:58:45,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 20:58:45,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 20:58:45,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 20:58:45,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 20:58:45,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 20:58:45,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 20:58:45,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 20:58:45,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 20:58:45,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 20:58:45,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 20:58:45,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 20:58:45,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 20:58:45,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 20:58:45,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 20:58:45,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 20:58:45,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 20:58:45,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 20:58:45,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 20:58:45,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 20:58:45,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 20:58:45,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 20:58:45,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 20:58:45,735 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 20:58:45,758 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 20:58:45,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 20:58:45,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 20:58:45,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 20:58:45,760 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 20:58:45,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 20:58:45,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 20:58:45,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 20:58:45,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 20:58:45,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 20:58:45,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 20:58:45,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 20:58:45,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 20:58:45,762 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 20:58:45,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 20:58:45,763 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 20:58:45,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 20:58:45,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 20:58:45,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 20:58:45,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 20:58:45,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 20:58:45,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 20:58:45,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 20:58:45,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 20:58:45,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 20:58:45,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 20:58:45,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 20:58:45,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 20:58:45,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 20:58:45,765 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 20:58:46,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 20:58:46,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 20:58:46,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 20:58:46,107 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 20:58:46,107 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 20:58:46,108 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label25.c [2020-10-14 20:58:46,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd6b2184c/aae40b09d7d64bd6bc5f75eb82ffa9da/FLAGc664a78ff [2020-10-14 20:58:46,867 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 20:58:46,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label25.c [2020-10-14 20:58:46,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd6b2184c/aae40b09d7d64bd6bc5f75eb82ffa9da/FLAGc664a78ff [2020-10-14 20:58:47,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bd6b2184c/aae40b09d7d64bd6bc5f75eb82ffa9da [2020-10-14 20:58:47,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 20:58:47,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 20:58:47,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 20:58:47,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 20:58:47,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 20:58:47,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:58:47" (1/1) ... [2020-10-14 20:58:47,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738c85d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:47, skipping insertion in model container [2020-10-14 20:58:47,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:58:47" (1/1) ... [2020-10-14 20:58:47,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 20:58:47,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 20:58:48,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:58:48,025 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 20:58:48,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 20:58:48,348 INFO L208 MainTranslator]: Completed translation [2020-10-14 20:58:48,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48 WrapperNode [2020-10-14 20:58:48,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 20:58:48,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 20:58:48,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 20:58:48,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 20:58:48,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (1/1) ... [2020-10-14 20:58:48,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (1/1) ... [2020-10-14 20:58:48,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (1/1) ... [2020-10-14 20:58:48,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (1/1) ... [2020-10-14 20:58:48,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (1/1) ... [2020-10-14 20:58:48,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (1/1) ... [2020-10-14 20:58:48,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (1/1) ... [2020-10-14 20:58:48,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 20:58:48,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 20:58:48,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 20:58:48,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 20:58:48,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (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 20:58:48,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 20:58:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 20:58:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 20:58:48,626 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 20:58:48,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 20:58:48,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 20:58:48,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 20:58:48,627 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 20:58:48,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 20:58:48,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 20:58:48,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 20:58:50,367 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 20:58:50,367 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 20:58:50,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:58:50 BoogieIcfgContainer [2020-10-14 20:58:50,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 20:58:50,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 20:58:50,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 20:58:50,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 20:58:50,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:58:47" (1/3) ... [2020-10-14 20:58:50,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1f420b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:58:50, skipping insertion in model container [2020-10-14 20:58:50,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:48" (2/3) ... [2020-10-14 20:58:50,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1f420b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:58:50, skipping insertion in model container [2020-10-14 20:58:50,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:58:50" (3/3) ... [2020-10-14 20:58:50,383 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label25.c [2020-10-14 20:58:50,394 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 20:58:50,402 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 20:58:50,416 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 20:58:50,444 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 20:58:50,444 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 20:58:50,444 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 20:58:50,445 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 20:58:50,445 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 20:58:50,445 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 20:58:50,445 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 20:58:50,445 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 20:58:50,470 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-10-14 20:58:50,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-14 20:58:50,478 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:58:50,479 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] [2020-10-14 20:58:50,480 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:58:50,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:58:50,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1539824594, now seen corresponding path program 1 times [2020-10-14 20:58:50,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:58:50,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628316064] [2020-10-14 20:58:50,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:58:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:58:50,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:58:51,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:58:51,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-14 20:58:51,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:58:51,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-14 20:58:51,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:58:51,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:58:51,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:58:51,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:58:51,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 20:58:51,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 20:58:51,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:58:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:58:51,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:58:51,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:58:51,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:58:51,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:58:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 20:58:51,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:58:51,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:58:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:58:51,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:58:51,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:58:51,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:58:51,253 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 20:58:51,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628316064] [2020-10-14 20:58:51,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:58:51,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 20:58:51,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537274230] [2020-10-14 20:58:51,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 20:58:51,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:58:51,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 20:58:51,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 20:58:51,282 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 4 states. [2020-10-14 20:58:53,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:58:53,828 INFO L93 Difference]: Finished difference Result 791 states and 1386 transitions. [2020-10-14 20:58:53,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:58:53,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-10-14 20:58:53,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:58:53,853 INFO L225 Difference]: With dead ends: 791 [2020-10-14 20:58:53,853 INFO L226 Difference]: Without dead ends: 434 [2020-10-14 20:58:53,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:58:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-14 20:58:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 430. [2020-10-14 20:58:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-14 20:58:53,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 618 transitions. [2020-10-14 20:58:53,970 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 618 transitions. Word has length 37 [2020-10-14 20:58:53,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:58:53,972 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 618 transitions. [2020-10-14 20:58:53,972 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 20:58:53,972 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 618 transitions. [2020-10-14 20:58:53,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 20:58:53,981 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:58:53,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:58:53,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 20:58:53,984 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:58:53,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:58:53,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1804759410, now seen corresponding path program 1 times [2020-10-14 20:58:53,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:58:53,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689596887] [2020-10-14 20:58:53,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:58:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:58:54,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:58:54,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:58:55,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:58:55,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:58:55,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 20:58:55,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:58:55,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1409 [2020-10-14 20:58:55,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:58:55,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:58:55,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:58:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:58:55,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 20:58:55,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:58:55,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:58:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:58:55,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:58:55,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:58:55,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:58:55,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:58:55,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:58:55,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:58:55,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:58:55,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:58:55,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:58:55,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:58:55,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:58:55,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:58:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:58:55,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:58:55,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:58:55,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 20:58:55,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:58:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 20:58:55,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:58:55,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:58:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:58:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:58:55,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:58:55,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:58:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:58:55,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689596887] [2020-10-14 20:58:55,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:58:55,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 20:58:55,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441784302] [2020-10-14 20:58:55,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 20:58:55,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:58:55,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 20:58:55,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:58:55,839 INFO L87 Difference]: Start difference. First operand 430 states and 618 transitions. Second operand 8 states. [2020-10-14 20:58:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:58:59,381 INFO L93 Difference]: Finished difference Result 1664 states and 2471 transitions. [2020-10-14 20:58:59,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 20:58:59,382 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2020-10-14 20:58:59,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:58:59,397 INFO L225 Difference]: With dead ends: 1664 [2020-10-14 20:58:59,397 INFO L226 Difference]: Without dead ends: 1240 [2020-10-14 20:58:59,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 20:58:59,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2020-10-14 20:58:59,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1208. [2020-10-14 20:58:59,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1208 states. [2020-10-14 20:58:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1690 transitions. [2020-10-14 20:58:59,490 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1690 transitions. Word has length 109 [2020-10-14 20:58:59,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:58:59,492 INFO L479 AbstractCegarLoop]: Abstraction has 1208 states and 1690 transitions. [2020-10-14 20:58:59,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 20:58:59,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1690 transitions. [2020-10-14 20:58:59,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 20:58:59,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:58:59,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:58:59,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 20:58:59,503 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:58:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:58:59,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1442270559, now seen corresponding path program 1 times [2020-10-14 20:58:59,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:58:59,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481710102] [2020-10-14 20:58:59,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:58:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:58:59,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:58:59,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:00,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:00,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 20:59:00,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:00,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1165 [2020-10-14 20:59:00,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:00,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:59:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:00,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 20:59:00,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:00,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:00,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:00,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:00,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:00,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:00,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:59:00,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:00,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:00,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:00,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:00,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:01,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:01,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:59:01,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:01,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 20:59:01,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:01,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:01,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:01,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:01,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:59:01,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:59:01,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481710102] [2020-10-14 20:59:01,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 20:59:01,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 20:59:01,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056567547] [2020-10-14 20:59:01,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:01,213 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:01,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:01,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:01,214 INFO L87 Difference]: Start difference. First operand 1208 states and 1690 transitions. Second operand 7 states. [2020-10-14 20:59:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:03,786 INFO L93 Difference]: Finished difference Result 3040 states and 4224 transitions. [2020-10-14 20:59:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 20:59:03,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-14 20:59:03,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:03,799 INFO L225 Difference]: With dead ends: 3040 [2020-10-14 20:59:03,799 INFO L226 Difference]: Without dead ends: 1838 [2020-10-14 20:59:03,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 20:59:03,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-10-14 20:59:03,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1808. [2020-10-14 20:59:03,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1808 states. [2020-10-14 20:59:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2364 transitions. [2020-10-14 20:59:03,859 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2364 transitions. Word has length 110 [2020-10-14 20:59:03,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:03,859 INFO L479 AbstractCegarLoop]: Abstraction has 1808 states and 2364 transitions. [2020-10-14 20:59:03,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:03,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2364 transitions. [2020-10-14 20:59:03,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-14 20:59:03,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:03,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:03,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 20:59:03,863 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:03,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:03,863 INFO L82 PathProgramCache]: Analyzing trace with hash -4642230, now seen corresponding path program 1 times [2020-10-14 20:59:03,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:03,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451023796] [2020-10-14 20:59:03,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:03,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:04,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:04,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 20:59:04,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:04,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-14 20:59:04,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:04,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 20:59:04,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 20:59:04,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:04,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:04,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:04,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:04,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:04,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:04,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:59:04,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:04,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:04,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:04,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:04,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:04,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:04,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:04,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:04,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:04,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-14 20:59:04,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:04,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:04,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 20:59:04,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:04,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:59:04,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451023796] [2020-10-14 20:59:04,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:04,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:59:04,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75683820] [2020-10-14 20:59:04,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:59:04,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:04,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:59:04,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:59:04,522 INFO L87 Difference]: Start difference. First operand 1808 states and 2364 transitions. Second operand 5 states. [2020-10-14 20:59:06,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:06,706 INFO L93 Difference]: Finished difference Result 4011 states and 5355 transitions. [2020-10-14 20:59:06,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:59:06,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-10-14 20:59:06,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:06,725 INFO L225 Difference]: With dead ends: 4011 [2020-10-14 20:59:06,725 INFO L226 Difference]: Without dead ends: 2397 [2020-10-14 20:59:06,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:59:06,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2397 states. [2020-10-14 20:59:06,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2397 to 2191. [2020-10-14 20:59:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2191 states. [2020-10-14 20:59:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 2834 transitions. [2020-10-14 20:59:06,791 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 2834 transitions. Word has length 168 [2020-10-14 20:59:06,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:06,792 INFO L479 AbstractCegarLoop]: Abstraction has 2191 states and 2834 transitions. [2020-10-14 20:59:06,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:59:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 2834 transitions. [2020-10-14 20:59:06,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-14 20:59:06,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:06,797 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:59:06,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 20:59:06,797 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:06,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:06,798 INFO L82 PathProgramCache]: Analyzing trace with hash -959045413, now seen corresponding path program 1 times [2020-10-14 20:59:06,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:06,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [713657943] [2020-10-14 20:59:06,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:06,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:07,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:07,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:09,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:09,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 20:59:09,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:09,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2557 [2020-10-14 20:59:09,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:09,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:09,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 20:59:09,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:09,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-14 20:59:09,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:09,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:09,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:09,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:09,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:09,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:09,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 20:59:09,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:09,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:09,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:09,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:09,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:09,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:09,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:09,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:09,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:09,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 20:59:09,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:09,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 20:59:09,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:09,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:09,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-14 20:59:09,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:09,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 20:59:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:09,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:10,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:10,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:59:10,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:10,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 20:59:10,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:10,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:10,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 20:59:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:10,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:59:10,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:59:10,316 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 46 proven. 83 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 20:59:10,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [713657943] [2020-10-14 20:59:10,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:10,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 20:59:10,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834753013] [2020-10-14 20:59:10,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 20:59:10,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:10,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 20:59:10,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-14 20:59:10,319 INFO L87 Difference]: Start difference. First operand 2191 states and 2834 transitions. Second operand 9 states. [2020-10-14 20:59:12,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:12,711 INFO L93 Difference]: Finished difference Result 5248 states and 6813 transitions. [2020-10-14 20:59:12,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 20:59:12,717 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 226 [2020-10-14 20:59:12,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:12,734 INFO L225 Difference]: With dead ends: 5248 [2020-10-14 20:59:12,734 INFO L226 Difference]: Without dead ends: 3239 [2020-10-14 20:59:12,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-10-14 20:59:12,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2020-10-14 20:59:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 3177. [2020-10-14 20:59:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3177 states. [2020-10-14 20:59:12,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 4026 transitions. [2020-10-14 20:59:12,841 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 4026 transitions. Word has length 226 [2020-10-14 20:59:12,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:12,842 INFO L479 AbstractCegarLoop]: Abstraction has 3177 states and 4026 transitions. [2020-10-14 20:59:12,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 20:59:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 4026 transitions. [2020-10-14 20:59:12,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-14 20:59:12,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:12,846 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:59:12,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 20:59:12,847 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:12,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1386082140, now seen corresponding path program 1 times [2020-10-14 20:59:12,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:12,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833606368] [2020-10-14 20:59:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:12,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:13,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:13,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:14,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:14,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-14 20:59:14,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:14,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1656 [2020-10-14 20:59:14,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:14,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 20:59:14,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 20:59:14,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:14,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:14,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:14,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:14,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:14,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:14,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:59:14,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:14,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:14,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:14,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:14,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:14,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:14,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:14,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:14,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:14,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 20:59:14,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:14,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 20:59:14,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:14,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 20:59:14,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:14,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 20:59:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:14,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:15,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:15,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 20:59:15,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:15,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 20:59:15,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:15,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:15,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 20:59:15,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:59:15,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833606368] [2020-10-14 20:59:15,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:15,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:15,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631988012] [2020-10-14 20:59:15,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:15,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:15,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:15,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:15,154 INFO L87 Difference]: Start difference. First operand 3177 states and 4026 transitions. Second operand 7 states. [2020-10-14 20:59:18,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:18,056 INFO L93 Difference]: Finished difference Result 6785 states and 8736 transitions. [2020-10-14 20:59:18,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 20:59:18,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-10-14 20:59:18,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:18,084 INFO L225 Difference]: With dead ends: 6785 [2020-10-14 20:59:18,085 INFO L226 Difference]: Without dead ends: 3992 [2020-10-14 20:59:18,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 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 20:59:18,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3992 states. [2020-10-14 20:59:18,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3992 to 3769. [2020-10-14 20:59:18,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3769 states. [2020-10-14 20:59:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 4753 transitions. [2020-10-14 20:59:18,195 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 4753 transitions. Word has length 227 [2020-10-14 20:59:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:18,196 INFO L479 AbstractCegarLoop]: Abstraction has 3769 states and 4753 transitions. [2020-10-14 20:59:18,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:18,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 4753 transitions. [2020-10-14 20:59:18,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-14 20:59:18,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:18,201 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:18,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 20:59:18,201 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:18,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:18,202 INFO L82 PathProgramCache]: Analyzing trace with hash -694812592, now seen corresponding path program 1 times [2020-10-14 20:59:18,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:18,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637340141] [2020-10-14 20:59:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:18,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:18,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:19,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:19,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-14 20:59:19,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:19,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 827 [2020-10-14 20:59:19,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:19,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:19,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 20:59:19,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 20:59:19,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:59:19,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:19,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:19,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:19,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:19,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:19,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:59:19,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:19,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:19,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:19,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:19,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:19,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:19,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 20:59:19,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 20:59:19,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:19,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:19,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 20:59:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:19,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:19,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 20:59:19,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 20:59:19,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:19,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:19,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 20:59:19,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 20:59:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-14 20:59:19,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637340141] [2020-10-14 20:59:19,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:19,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:59:19,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707922616] [2020-10-14 20:59:19,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:59:19,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:19,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:59:19,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:59:19,564 INFO L87 Difference]: Start difference. First operand 3769 states and 4753 transitions. Second operand 5 states. [2020-10-14 20:59:21,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:21,835 INFO L93 Difference]: Finished difference Result 7371 states and 9355 transitions. [2020-10-14 20:59:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:59:21,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-10-14 20:59:21,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:21,854 INFO L225 Difference]: With dead ends: 7371 [2020-10-14 20:59:21,855 INFO L226 Difference]: Without dead ends: 3986 [2020-10-14 20:59:21,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:59:21,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3986 states. [2020-10-14 20:59:21,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3986 to 3773. [2020-10-14 20:59:21,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3773 states. [2020-10-14 20:59:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3773 states to 3773 states and 4652 transitions. [2020-10-14 20:59:21,953 INFO L78 Accepts]: Start accepts. Automaton has 3773 states and 4652 transitions. Word has length 237 [2020-10-14 20:59:21,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:21,953 INFO L479 AbstractCegarLoop]: Abstraction has 3773 states and 4652 transitions. [2020-10-14 20:59:21,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:59:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3773 states and 4652 transitions. [2020-10-14 20:59:21,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-14 20:59:21,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:21,958 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:59:21,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 20:59:21,959 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:21,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:21,959 INFO L82 PathProgramCache]: Analyzing trace with hash -429311007, now seen corresponding path program 1 times [2020-10-14 20:59:21,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:21,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369458968] [2020-10-14 20:59:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:22,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:22,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:22,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:23,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:23,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-14 20:59:23,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:23,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1752 [2020-10-14 20:59:23,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:23,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:23,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:23,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 20:59:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 20:59:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:23,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:23,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:23,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:23,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:59:23,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:23,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:23,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:23,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:23,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:24,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:24,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:24,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 20:59:24,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:24,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:24,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:24,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 20:59:24,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 20:59:24,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:24,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:24,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:24,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 20:59:24,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:24,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 20:59:24,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:24,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:24,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:24,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 20:59:24,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:59:24,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369458968] [2020-10-14 20:59:24,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:24,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:24,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666100906] [2020-10-14 20:59:24,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:24,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:24,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:24,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:24,398 INFO L87 Difference]: Start difference. First operand 3773 states and 4652 transitions. Second operand 7 states. [2020-10-14 20:59:27,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:27,830 INFO L93 Difference]: Finished difference Result 8783 states and 11226 transitions. [2020-10-14 20:59:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:59:27,831 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 237 [2020-10-14 20:59:27,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:27,854 INFO L225 Difference]: With dead ends: 8783 [2020-10-14 20:59:27,855 INFO L226 Difference]: Without dead ends: 5394 [2020-10-14 20:59:27,863 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:59:27,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states. [2020-10-14 20:59:27,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 5366. [2020-10-14 20:59:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5366 states. [2020-10-14 20:59:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 6578 transitions. [2020-10-14 20:59:27,991 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 6578 transitions. Word has length 237 [2020-10-14 20:59:27,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:27,991 INFO L479 AbstractCegarLoop]: Abstraction has 5366 states and 6578 transitions. [2020-10-14 20:59:27,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 6578 transitions. [2020-10-14 20:59:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-10-14 20:59:28,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:28,010 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:28,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 20:59:28,010 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:28,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:28,011 INFO L82 PathProgramCache]: Analyzing trace with hash 355108536, now seen corresponding path program 1 times [2020-10-14 20:59:28,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:28,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114428640] [2020-10-14 20:59:28,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:28,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:28,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:29,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:29,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-14 20:59:29,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:29,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1496 [2020-10-14 20:59:29,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:29,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:29,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 20:59:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:29,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 20:59:29,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:29,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:29,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:29,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:29,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:29,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:59:29,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:29,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:29,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:29,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:29,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:29,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:29,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 20:59:29,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:29,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 20:59:29,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:29,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:29,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:29,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:29,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 20:59:29,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:30,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 20:59:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:30,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:30,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:30,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 20:59:30,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:30,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 20:59:30,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:30,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 20:59:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 20:59:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 20:59:30,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114428640] [2020-10-14 20:59:30,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:30,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 20:59:30,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316525893] [2020-10-14 20:59:30,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 20:59:30,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:30,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 20:59:30,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 20:59:30,365 INFO L87 Difference]: Start difference. First operand 5366 states and 6578 transitions. Second operand 9 states. [2020-10-14 20:59:34,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:34,084 INFO L93 Difference]: Finished difference Result 10936 states and 15219 transitions. [2020-10-14 20:59:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 20:59:34,085 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 257 [2020-10-14 20:59:34,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:34,127 INFO L225 Difference]: With dead ends: 10936 [2020-10-14 20:59:34,127 INFO L226 Difference]: Without dead ends: 7120 [2020-10-14 20:59:34,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-14 20:59:34,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2020-10-14 20:59:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 6960. [2020-10-14 20:59:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6960 states. [2020-10-14 20:59:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6960 states to 6960 states and 8605 transitions. [2020-10-14 20:59:34,319 INFO L78 Accepts]: Start accepts. Automaton has 6960 states and 8605 transitions. Word has length 257 [2020-10-14 20:59:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:34,320 INFO L479 AbstractCegarLoop]: Abstraction has 6960 states and 8605 transitions. [2020-10-14 20:59:34,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 20:59:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 6960 states and 8605 transitions. [2020-10-14 20:59:34,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-14 20:59:34,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:34,331 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:34,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 20:59:34,331 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:34,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:34,332 INFO L82 PathProgramCache]: Analyzing trace with hash -2069786643, now seen corresponding path program 1 times [2020-10-14 20:59:34,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:34,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102164750] [2020-10-14 20:59:34,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:34,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:34,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:34,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:39,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:39,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 20:59:39,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:39,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4748 [2020-10-14 20:59:39,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:39,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:39,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-14 20:59:39,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 20:59:39,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:39,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:39,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:39,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:39,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:39,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:39,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 20:59:39,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:39,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:39,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:39,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:39,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:39,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:39,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:39,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:39,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:39,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:39,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 20:59:39,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:39,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:39,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:39,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:39,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 20:59:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:39,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:39,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:39,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 20:59:39,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:39,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 20:59:39,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:39,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:39,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:39,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:39,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 20:59:39,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:39,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-14 20:59:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:39,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:39,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:39,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:59:39,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:39,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 20:59:39,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:39,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 20:59:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 232 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 20:59:39,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102164750] [2020-10-14 20:59:39,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:39,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:39,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576666761] [2020-10-14 20:59:39,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:39,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:39,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:39,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:39,806 INFO L87 Difference]: Start difference. First operand 6960 states and 8605 transitions. Second operand 7 states. [2020-10-14 20:59:42,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:42,664 INFO L93 Difference]: Finished difference Result 14700 states and 18378 transitions. [2020-10-14 20:59:42,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:59:42,670 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 311 [2020-10-14 20:59:42,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:42,694 INFO L225 Difference]: With dead ends: 14700 [2020-10-14 20:59:42,695 INFO L226 Difference]: Without dead ends: 7744 [2020-10-14 20:59:42,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:59:42,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7744 states. [2020-10-14 20:59:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7744 to 7720. [2020-10-14 20:59:42,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7720 states. [2020-10-14 20:59:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7720 states to 7720 states and 9439 transitions. [2020-10-14 20:59:42,862 INFO L78 Accepts]: Start accepts. Automaton has 7720 states and 9439 transitions. Word has length 311 [2020-10-14 20:59:42,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:42,863 INFO L479 AbstractCegarLoop]: Abstraction has 7720 states and 9439 transitions. [2020-10-14 20:59:42,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:42,863 INFO L276 IsEmpty]: Start isEmpty. Operand 7720 states and 9439 transitions. [2020-10-14 20:59:42,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-14 20:59:42,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:42,877 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:59:42,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 20:59:42,878 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:42,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:42,878 INFO L82 PathProgramCache]: Analyzing trace with hash 296605947, now seen corresponding path program 1 times [2020-10-14 20:59:42,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:42,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926097919] [2020-10-14 20:59:42,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:42,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:43,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:43,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:43,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:45,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:47,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:47,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:47,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-14 20:59:47,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 20:59:47,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 20:59:47,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:47,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:59:47,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 20:59:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:47,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:48,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:48,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:48,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:48,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:48,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:59:48,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:48,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:48,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:48,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:48,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:48,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:48,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:48,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:48,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:48,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:48,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-14 20:59:48,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:48,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:48,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:48,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:48,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 20:59:48,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:48,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 20:59:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:48,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:48,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:48,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 20:59:48,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:48,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 20:59:48,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:48,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:48,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:48,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 20:59:48,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:48,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:48,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-14 20:59:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:48,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:48,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:48,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 20:59:48,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:48,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 20:59:48,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:48,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 20:59:48,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:48,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 90 proven. 143 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 20:59:48,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926097919] [2020-10-14 20:59:48,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:48,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:48,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550712498] [2020-10-14 20:59:48,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:48,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:48,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:48,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:48,650 INFO L87 Difference]: Start difference. First operand 7720 states and 9439 transitions. Second operand 7 states. [2020-10-14 20:59:51,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:51,104 INFO L93 Difference]: Finished difference Result 17242 states and 22100 transitions. [2020-10-14 20:59:51,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 20:59:51,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 321 [2020-10-14 20:59:51,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:51,150 INFO L225 Difference]: With dead ends: 17242 [2020-10-14 20:59:51,150 INFO L226 Difference]: Without dead ends: 9906 [2020-10-14 20:59:51,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 20:59:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9906 states. [2020-10-14 20:59:51,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9906 to 9626. [2020-10-14 20:59:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9626 states. [2020-10-14 20:59:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 11670 transitions. [2020-10-14 20:59:51,399 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 11670 transitions. Word has length 321 [2020-10-14 20:59:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:51,399 INFO L479 AbstractCegarLoop]: Abstraction has 9626 states and 11670 transitions. [2020-10-14 20:59:51,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:51,400 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 11670 transitions. [2020-10-14 20:59:51,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-10-14 20:59:51,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:51,408 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 20:59:51,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 20:59:51,409 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:51,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1194236109, now seen corresponding path program 1 times [2020-10-14 20:59:51,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:51,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [126342936] [2020-10-14 20:59:51,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:51,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:51,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:52,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:52,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:52,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 333 [2020-10-14 20:59:52,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:59:52,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-10-14 20:59:52,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:52,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 20:59:52,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-14 20:59:52,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:53,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:53,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:53,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:53,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:53,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:53,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 20:59:53,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:53,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:53,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:59:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:53,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:59:53,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:53,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:53,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:53,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:53,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:53,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:53,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 20:59:53,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:53,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 20:59:53,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:53,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 20:59:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:53,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:53,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 20:59:53,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:53,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-14 20:59:53,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:53,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:59:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:59:53,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 20:59:53,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:59:53,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [126342936] [2020-10-14 20:59:53,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:53,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:59:53,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232561614] [2020-10-14 20:59:53,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:59:53,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:53,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:59:53,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:53,534 INFO L87 Difference]: Start difference. First operand 9626 states and 11670 transitions. Second operand 7 states. [2020-10-14 20:59:56,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:56,290 INFO L93 Difference]: Finished difference Result 19139 states and 23239 transitions. [2020-10-14 20:59:56,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:59:56,291 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 321 [2020-10-14 20:59:56,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:56,318 INFO L225 Difference]: With dead ends: 19139 [2020-10-14 20:59:56,318 INFO L226 Difference]: Without dead ends: 9897 [2020-10-14 20:59:56,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 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 20:59:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9897 states. [2020-10-14 20:59:56,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9897 to 9872. [2020-10-14 20:59:56,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9872 states. [2020-10-14 20:59:56,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9872 states to 9872 states and 11831 transitions. [2020-10-14 20:59:56,518 INFO L78 Accepts]: Start accepts. Automaton has 9872 states and 11831 transitions. Word has length 321 [2020-10-14 20:59:56,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:59:56,519 INFO L479 AbstractCegarLoop]: Abstraction has 9872 states and 11831 transitions. [2020-10-14 20:59:56,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:59:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 9872 states and 11831 transitions. [2020-10-14 20:59:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-10-14 20:59:56,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:59:56,534 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:59:56,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 20:59:56,534 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:59:56,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:59:56,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1878469021, now seen corresponding path program 1 times [2020-10-14 20:59:56,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:59:56,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [144756684] [2020-10-14 20:59:56,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:59:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:56,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:56,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:56,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:57,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:57,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:57,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 339 [2020-10-14 20:59:57,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 20:59:57,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 978 [2020-10-14 20:59:57,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:57,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:57,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:57,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 20:59:57,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 297 [2020-10-14 20:59:57,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:59:57,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:59:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:57,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:57,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:57,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:59:57,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:59:57,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 20:59:57,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:57,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:57,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 20:59:57,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:57,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:59:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:57,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:57,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:57,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:57,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 20:59:57,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:57,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 20:59:57,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:57,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:59:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 20:59:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:57,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 20:59:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:59:57,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:58,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:59:58,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:59:58,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 20:59:58,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:59:58,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 20:59:58,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:59:58,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:59:58,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:59:58,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-14 20:59:58,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 20:59:58,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:59:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-14 20:59:58,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [144756684] [2020-10-14 20:59:58,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:59:58,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:59:58,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168099621] [2020-10-14 20:59:58,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 20:59:58,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:59:58,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 20:59:58,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:59:58,175 INFO L87 Difference]: Start difference. First operand 9872 states and 11831 transitions. Second operand 6 states. [2020-10-14 20:59:59,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:59:59,874 INFO L93 Difference]: Finished difference Result 17596 states and 21187 transitions. [2020-10-14 20:59:59,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:59:59,874 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 327 [2020-10-14 20:59:59,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:59:59,894 INFO L225 Difference]: With dead ends: 17596 [2020-10-14 20:59:59,894 INFO L226 Difference]: Without dead ends: 9483 [2020-10-14 20:59:59,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:59:59,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9483 states. [2020-10-14 21:00:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9483 to 9463. [2020-10-14 21:00:00,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9463 states. [2020-10-14 21:00:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9463 states to 9463 states and 11272 transitions. [2020-10-14 21:00:00,082 INFO L78 Accepts]: Start accepts. Automaton has 9463 states and 11272 transitions. Word has length 327 [2020-10-14 21:00:00,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:00,083 INFO L479 AbstractCegarLoop]: Abstraction has 9463 states and 11272 transitions. [2020-10-14 21:00:00,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:00:00,083 INFO L276 IsEmpty]: Start isEmpty. Operand 9463 states and 11272 transitions. [2020-10-14 21:00:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2020-10-14 21:00:00,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:00,093 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:00,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 21:00:00,094 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:00,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:00,094 INFO L82 PathProgramCache]: Analyzing trace with hash 903158395, now seen corresponding path program 1 times [2020-10-14 21:00:00,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:00,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503575189] [2020-10-14 21:00:00,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:00,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:00,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:00,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:00,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:01,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:05,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:05,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-10-14 21:00:05,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:00:05,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4876 [2020-10-14 21:00:05,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:05,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 21:00:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:00:05,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 296 [2020-10-14 21:00:05,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:05,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:05,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:05,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:05,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:05,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 21:00:05,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:05,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:05,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:00:05,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:05,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:05,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:05,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:05,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:00:05,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:05,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 21:00:05,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:05,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:05,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 21:00:05,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:05,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:00:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:05,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:05,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:05,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:00:05,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:05,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-14 21:00:05,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:05,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:00:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:00:05,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:05,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-14 21:00:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:05,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:05,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:05,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:05,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:00:05,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:05,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 21:00:05,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:05,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:05,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:00:05,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:06,124 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 99 proven. 138 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-14 21:00:06,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503575189] [2020-10-14 21:00:06,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:06,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:00:06,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071506378] [2020-10-14 21:00:06,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:00:06,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:06,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:00:06,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:00:06,125 INFO L87 Difference]: Start difference. First operand 9463 states and 11272 transitions. Second operand 10 states. [2020-10-14 21:00:11,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:11,257 INFO L93 Difference]: Finished difference Result 20097 states and 24211 transitions. [2020-10-14 21:00:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 21:00:11,258 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 330 [2020-10-14 21:00:11,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:11,279 INFO L225 Difference]: With dead ends: 20097 [2020-10-14 21:00:11,279 INFO L226 Difference]: Without dead ends: 12003 [2020-10-14 21:00:11,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2020-10-14 21:00:11,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12003 states. [2020-10-14 21:00:11,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12003 to 11983. [2020-10-14 21:00:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11983 states. [2020-10-14 21:00:11,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11983 states to 11983 states and 14390 transitions. [2020-10-14 21:00:11,657 INFO L78 Accepts]: Start accepts. Automaton has 11983 states and 14390 transitions. Word has length 330 [2020-10-14 21:00:11,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:11,658 INFO L479 AbstractCegarLoop]: Abstraction has 11983 states and 14390 transitions. [2020-10-14 21:00:11,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:00:11,658 INFO L276 IsEmpty]: Start isEmpty. Operand 11983 states and 14390 transitions. [2020-10-14 21:00:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-14 21:00:11,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:11,671 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:00:11,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 21:00:11,671 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:11,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:11,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1163936277, now seen corresponding path program 1 times [2020-10-14 21:00:11,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:11,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835738652] [2020-10-14 21:00:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:11,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:11,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:13,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:13,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 355 [2020-10-14 21:00:13,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:13,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1480 [2020-10-14 21:00:13,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:13,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 21:00:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:00:13,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 349 [2020-10-14 21:00:13,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:13,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:13,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:13,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:13,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:13,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:13,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:13,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:13,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:13,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:13,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:13,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:00:13,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:13,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:13,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:13,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:13,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:00:13,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:13,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 21:00:13,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:13,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:13,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:00:13,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:13,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 21:00:13,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:13,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:00:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:13,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:13,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:13,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:00:13,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:13,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 21:00:13,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:13,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:13,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:00:13,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:13,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 21:00:13,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:14,170 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 126 proven. 62 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 21:00:14,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835738652] [2020-10-14 21:00:14,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:14,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 21:00:14,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920582988] [2020-10-14 21:00:14,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 21:00:14,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:14,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 21:00:14,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:00:14,172 INFO L87 Difference]: Start difference. First operand 11983 states and 14390 transitions. Second operand 11 states. [2020-10-14 21:00:19,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:19,969 INFO L93 Difference]: Finished difference Result 29915 states and 37635 transitions. [2020-10-14 21:00:19,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 21:00:19,970 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 343 [2020-10-14 21:00:19,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:20,024 INFO L225 Difference]: With dead ends: 29915 [2020-10-14 21:00:20,024 INFO L226 Difference]: Without dead ends: 20069 [2020-10-14 21:00:20,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2020-10-14 21:00:20,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20069 states. [2020-10-14 21:00:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20069 to 18791. [2020-10-14 21:00:20,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18791 states. [2020-10-14 21:00:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18791 states to 18791 states and 22877 transitions. [2020-10-14 21:00:20,408 INFO L78 Accepts]: Start accepts. Automaton has 18791 states and 22877 transitions. Word has length 343 [2020-10-14 21:00:20,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:20,408 INFO L479 AbstractCegarLoop]: Abstraction has 18791 states and 22877 transitions. [2020-10-14 21:00:20,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 21:00:20,408 INFO L276 IsEmpty]: Start isEmpty. Operand 18791 states and 22877 transitions. [2020-10-14 21:00:20,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-14 21:00:20,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:20,421 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:20,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 21:00:20,421 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:20,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:20,422 INFO L82 PathProgramCache]: Analyzing trace with hash -567026618, now seen corresponding path program 1 times [2020-10-14 21:00:20,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:20,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [389121650] [2020-10-14 21:00:20,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:20,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:20,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:21,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:23,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:23,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-10-14 21:00:23,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:00:23,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2582 [2020-10-14 21:00:23,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:23,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:23,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 21:00:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:00:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:23,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:23,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:23,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:23,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:23,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:23,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:23,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:23,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:23,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:23,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:23,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:23,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:23,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:23,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:00:23,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:23,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 21:00:23,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:23,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:23,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:23,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:23,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:00:23,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:23,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:00:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:23,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:23,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:23,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 21:00:23,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:23,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 21:00:23,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:23,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:23,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 21:00:23,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:23,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-14 21:00:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:23,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:23,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:23,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:00:23,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:23,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:00:23,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:23,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 21:00:23,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:23,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:23,609 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 198 proven. 72 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-10-14 21:00:23,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [389121650] [2020-10-14 21:00:23,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:23,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:00:23,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150020892] [2020-10-14 21:00:23,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:00:23,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:23,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:00:23,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:00:23,612 INFO L87 Difference]: Start difference. First operand 18791 states and 22877 transitions. Second operand 7 states. [2020-10-14 21:00:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:26,584 INFO L93 Difference]: Finished difference Result 43739 states and 53597 transitions. [2020-10-14 21:00:26,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:00:26,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 348 [2020-10-14 21:00:26,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:26,652 INFO L225 Difference]: With dead ends: 43739 [2020-10-14 21:00:26,653 INFO L226 Difference]: Without dead ends: 25332 [2020-10-14 21:00:26,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 21:00:26,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25332 states. [2020-10-14 21:00:27,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25332 to 25263. [2020-10-14 21:00:27,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25263 states. [2020-10-14 21:00:27,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25263 states to 25263 states and 30475 transitions. [2020-10-14 21:00:27,096 INFO L78 Accepts]: Start accepts. Automaton has 25263 states and 30475 transitions. Word has length 348 [2020-10-14 21:00:27,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:27,096 INFO L479 AbstractCegarLoop]: Abstraction has 25263 states and 30475 transitions. [2020-10-14 21:00:27,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:00:27,097 INFO L276 IsEmpty]: Start isEmpty. Operand 25263 states and 30475 transitions. [2020-10-14 21:00:27,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-10-14 21:00:27,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:27,107 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 21:00:27,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 21:00:27,107 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:27,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:27,107 INFO L82 PathProgramCache]: Analyzing trace with hash 286893323, now seen corresponding path program 1 times [2020-10-14 21:00:27,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:27,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169895625] [2020-10-14 21:00:27,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:27,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:27,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:27,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:28,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:28,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-14 21:00:28,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:00:28,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1200 [2020-10-14 21:00:28,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:28,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:28,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:00:28,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-10-14 21:00:28,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 21:00:28,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:28,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:28,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:28,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:28,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:00:28,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:28,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:28,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:28,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:28,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:28,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:28,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:28,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:28,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:28,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:00:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:00:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:28,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:28,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:00:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:28,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:28,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:28,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:00:28,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:28,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 21:00:28,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:28,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:28,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:00:28,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:28,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 21:00:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:28,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:28,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:28,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:28,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 21:00:28,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:28,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 21:00:28,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:28,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:28,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:00:28,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:28,774 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 96 proven. 5 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-14 21:00:28,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169895625] [2020-10-14 21:00:28,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:28,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:00:28,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992620945] [2020-10-14 21:00:28,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:00:28,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:28,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:00:28,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:00:28,776 INFO L87 Difference]: Start difference. First operand 25263 states and 30475 transitions. Second operand 6 states. [2020-10-14 21:00:31,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:31,324 INFO L93 Difference]: Finished difference Result 46297 states and 56086 transitions. [2020-10-14 21:00:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:00:31,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 351 [2020-10-14 21:00:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:31,384 INFO L225 Difference]: With dead ends: 46297 [2020-10-14 21:00:31,384 INFO L226 Difference]: Without dead ends: 25309 [2020-10-14 21:00:31,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:00:31,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25309 states. [2020-10-14 21:00:31,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25309 to 25065. [2020-10-14 21:00:31,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25065 states. [2020-10-14 21:00:31,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25065 states to 25065 states and 29496 transitions. [2020-10-14 21:00:31,764 INFO L78 Accepts]: Start accepts. Automaton has 25065 states and 29496 transitions. Word has length 351 [2020-10-14 21:00:31,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:31,765 INFO L479 AbstractCegarLoop]: Abstraction has 25065 states and 29496 transitions. [2020-10-14 21:00:31,765 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:00:31,765 INFO L276 IsEmpty]: Start isEmpty. Operand 25065 states and 29496 transitions. [2020-10-14 21:00:31,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-14 21:00:31,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:31,775 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 21:00:31,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 21:00:31,775 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:31,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:31,776 INFO L82 PathProgramCache]: Analyzing trace with hash -15072984, now seen corresponding path program 1 times [2020-10-14 21:00:31,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:31,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83864388] [2020-10-14 21:00:31,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:31,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:31,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:33,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:33,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 371 [2020-10-14 21:00:33,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:33,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1518 [2020-10-14 21:00:33,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:33,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 21:00:33,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 21:00:33,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:33,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:33,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:33,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:33,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:33,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:00:33,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:33,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:33,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:33,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:33,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:33,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:33,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:00:33,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:33,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:00:33,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:33,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:33,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:33,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:33,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:00:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:33,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:33,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:33,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:00:33,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:33,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 21:00:33,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:33,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:33,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 21:00:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:33,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 21:00:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:33,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:33,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:33,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:00:33,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 21:00:33,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:33,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:00:33,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 21:00:33,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83864388] [2020-10-14 21:00:33,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:33,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:00:33,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706427590] [2020-10-14 21:00:33,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:00:33,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:33,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:00:33,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:00:33,897 INFO L87 Difference]: Start difference. First operand 25065 states and 29496 transitions. Second operand 7 states. [2020-10-14 21:00:37,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:37,047 INFO L93 Difference]: Finished difference Result 47276 states and 58557 transitions. [2020-10-14 21:00:37,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:00:37,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 357 [2020-10-14 21:00:37,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:37,106 INFO L225 Difference]: With dead ends: 47276 [2020-10-14 21:00:37,107 INFO L226 Difference]: Without dead ends: 26486 [2020-10-14 21:00:37,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 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 21:00:37,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26486 states. [2020-10-14 21:00:37,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26486 to 25461. [2020-10-14 21:00:37,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25461 states. [2020-10-14 21:00:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25461 states to 25461 states and 29793 transitions. [2020-10-14 21:00:37,566 INFO L78 Accepts]: Start accepts. Automaton has 25461 states and 29793 transitions. Word has length 357 [2020-10-14 21:00:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:37,567 INFO L479 AbstractCegarLoop]: Abstraction has 25461 states and 29793 transitions. [2020-10-14 21:00:37,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:00:37,567 INFO L276 IsEmpty]: Start isEmpty. Operand 25461 states and 29793 transitions. [2020-10-14 21:00:37,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-14 21:00:37,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:37,577 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:37,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 21:00:37,578 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:37,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:37,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1077736571, now seen corresponding path program 1 times [2020-10-14 21:00:37,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:37,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473088279] [2020-10-14 21:00:37,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:37,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:37,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:38,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:38,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-14 21:00:38,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:38,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1217 [2020-10-14 21:00:38,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:38,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:38,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:38,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 21:00:38,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:00:38,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:38,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:38,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:38,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:38,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:38,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:38,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:00:38,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:38,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:38,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:38,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:38,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:38,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:38,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:38,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:39,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-14 21:00:39,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:39,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:00:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:39,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:39,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:39,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:00:39,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 21:00:39,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:39,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:39,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:00:39,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:39,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2020-10-14 21:00:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:39,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:39,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:39,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:00:39,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:00:39,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:39,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:00:39,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:39,530 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 200 proven. 93 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 21:00:39,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473088279] [2020-10-14 21:00:39,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:39,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:00:39,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099047934] [2020-10-14 21:00:39,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:00:39,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:39,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:00:39,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:00:39,532 INFO L87 Difference]: Start difference. First operand 25461 states and 29793 transitions. Second operand 7 states. [2020-10-14 21:00:43,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:43,384 INFO L93 Difference]: Finished difference Result 56532 states and 65823 transitions. [2020-10-14 21:00:43,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:00:43,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 366 [2020-10-14 21:00:43,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:43,433 INFO L225 Difference]: With dead ends: 56532 [2020-10-14 21:00:43,434 INFO L226 Difference]: Without dead ends: 31455 [2020-10-14 21:00:43,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:00:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31455 states. [2020-10-14 21:00:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31455 to 28490. [2020-10-14 21:00:43,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28490 states. [2020-10-14 21:00:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28490 states to 28490 states and 32811 transitions. [2020-10-14 21:00:43,839 INFO L78 Accepts]: Start accepts. Automaton has 28490 states and 32811 transitions. Word has length 366 [2020-10-14 21:00:43,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:43,840 INFO L479 AbstractCegarLoop]: Abstraction has 28490 states and 32811 transitions. [2020-10-14 21:00:43,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:00:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 28490 states and 32811 transitions. [2020-10-14 21:00:43,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-10-14 21:00:43,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:43,850 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 21:00:43,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 21:00:43,851 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:43,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:43,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1229672199, now seen corresponding path program 1 times [2020-10-14 21:00:43,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:43,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89115459] [2020-10-14 21:00:43,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:43,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:44,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:44,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:47,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:47,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 384 [2020-10-14 21:00:47,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:00:47,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3562 [2020-10-14 21:00:47,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:47,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:47,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 21:00:47,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:00:47,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 343 [2020-10-14 21:00:47,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:47,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:47,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:47,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:00:47,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:47,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:47,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:47,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:47,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:00:47,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:47,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 21:00:47,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:47,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:47,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:47,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:47,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 21:00:47,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:47,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:00:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:47,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:47,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:47,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:00:47,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:47,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-14 21:00:47,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:47,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:00:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:47,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:00:47,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:48,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 21:00:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:48,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:48,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:48,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 21:00:48,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 21:00:48,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:48,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:48,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 21:00:48,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 171 proven. 206 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 21:00:48,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89115459] [2020-10-14 21:00:48,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:48,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 21:00:48,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370938833] [2020-10-14 21:00:48,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 21:00:48,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:48,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 21:00:48,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:00:48,332 INFO L87 Difference]: Start difference. First operand 28490 states and 32811 transitions. Second operand 11 states. [2020-10-14 21:00:53,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:53,026 INFO L93 Difference]: Finished difference Result 56069 states and 66660 transitions. [2020-10-14 21:00:53,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 21:00:53,027 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 370 [2020-10-14 21:00:53,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:53,101 INFO L225 Difference]: With dead ends: 56069 [2020-10-14 21:00:53,102 INFO L226 Difference]: Without dead ends: 32222 [2020-10-14 21:00:53,129 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-10-14 21:00:53,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32222 states. [2020-10-14 21:00:53,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32222 to 31372. [2020-10-14 21:00:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31372 states. [2020-10-14 21:00:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31372 states to 31372 states and 36224 transitions. [2020-10-14 21:00:53,569 INFO L78 Accepts]: Start accepts. Automaton has 31372 states and 36224 transitions. Word has length 370 [2020-10-14 21:00:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:53,570 INFO L479 AbstractCegarLoop]: Abstraction has 31372 states and 36224 transitions. [2020-10-14 21:00:53,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 21:00:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 31372 states and 36224 transitions. [2020-10-14 21:00:53,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-14 21:00:53,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:53,579 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:00:53,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 21:00:53,580 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:53,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:53,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1595712632, now seen corresponding path program 1 times [2020-10-14 21:00:53,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:53,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078871604] [2020-10-14 21:00:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:53,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:53,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:54,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:54,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 401 [2020-10-14 21:00:54,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:00:54,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1255 [2020-10-14 21:00:54,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:54,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-14 21:00:54,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:00:54,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:54,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:00:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:54,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:54,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:54,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:00:54,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:54,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:00:54,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:54,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:54,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:54,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:54,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:54,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:00:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:55,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:55,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:55,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:00:55,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:55,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 21:00:55,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:55,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:00:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:00:55,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 21:00:55,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:00:55,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 21:00:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:55,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:55,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:55,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:00:55,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:55,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 21:00:55,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:55,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:55,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:00:55,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:00:55,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:00:55,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:55,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-10-14 21:00:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:55,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:55,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:00:55,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:00:55,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:00:55,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:00:55,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:00:55,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:00:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:00:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-14 21:00:55,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:00:55,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:00:55,461 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 200 proven. 93 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-14 21:00:55,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078871604] [2020-10-14 21:00:55,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:00:55,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:00:55,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146776508] [2020-10-14 21:00:55,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:00:55,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:00:55,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:00:55,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:00:55,463 INFO L87 Difference]: Start difference. First operand 31372 states and 36224 transitions. Second operand 7 states. [2020-10-14 21:00:59,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:00:59,041 INFO L93 Difference]: Finished difference Result 59176 states and 68324 transitions. [2020-10-14 21:00:59,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:00:59,042 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 387 [2020-10-14 21:00:59,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:00:59,095 INFO L225 Difference]: With dead ends: 59176 [2020-10-14 21:00:59,096 INFO L226 Difference]: Without dead ends: 33981 [2020-10-14 21:00:59,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:00:59,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33981 states. [2020-10-14 21:00:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33981 to 32728. [2020-10-14 21:00:59,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32728 states. [2020-10-14 21:00:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32728 states to 32728 states and 37739 transitions. [2020-10-14 21:00:59,632 INFO L78 Accepts]: Start accepts. Automaton has 32728 states and 37739 transitions. Word has length 387 [2020-10-14 21:00:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:00:59,633 INFO L479 AbstractCegarLoop]: Abstraction has 32728 states and 37739 transitions. [2020-10-14 21:00:59,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:00:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 32728 states and 37739 transitions. [2020-10-14 21:00:59,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-10-14 21:00:59,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:00:59,648 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:59,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 21:00:59,648 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:00:59,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:00:59,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1697756228, now seen corresponding path program 1 times [2020-10-14 21:00:59,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:00:59,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311469677] [2020-10-14 21:00:59,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:00:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:00:59,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:00:59,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:00,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:01,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:01,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 415 [2020-10-14 21:01:01,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:01:01,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1253 [2020-10-14 21:01:01,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:01,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:01,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:01:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-10-14 21:01:01,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 21:01:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:01,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:01,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:01,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:01,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:01,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:01,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:01:01,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:01,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:01,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:01,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:01,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:01,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:01,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:01,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:01,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:01,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:01:01,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:01,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:01:01,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:01,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:01,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:01,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:01,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:01,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:01:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:01,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:01,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:01,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:01:01,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 21:01:01,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:01,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:01,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 21:01:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:01,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-14 21:01:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:01,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:01,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:01,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 21:01:01,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:01,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-14 21:01:01,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:01,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:01,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:01,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:01,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-14 21:01:01,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:01:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 268 proven. 31 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-14 21:01:01,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311469677] [2020-10-14 21:01:01,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:01,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:01:01,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015352522] [2020-10-14 21:01:01,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:01:01,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:01,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:01:01,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:01:01,923 INFO L87 Difference]: Start difference. First operand 32728 states and 37739 transitions. Second operand 6 states. [2020-10-14 21:01:04,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:04,883 INFO L93 Difference]: Finished difference Result 60721 states and 70145 transitions. [2020-10-14 21:01:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:01:04,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 401 [2020-10-14 21:01:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:04,943 INFO L225 Difference]: With dead ends: 60721 [2020-10-14 21:01:04,943 INFO L226 Difference]: Without dead ends: 32838 [2020-10-14 21:01:04,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:01:04,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32838 states. [2020-10-14 21:01:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32838 to 32530. [2020-10-14 21:01:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32530 states. [2020-10-14 21:01:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32530 states to 32530 states and 37424 transitions. [2020-10-14 21:01:05,466 INFO L78 Accepts]: Start accepts. Automaton has 32530 states and 37424 transitions. Word has length 401 [2020-10-14 21:01:05,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:05,467 INFO L479 AbstractCegarLoop]: Abstraction has 32530 states and 37424 transitions. [2020-10-14 21:01:05,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:01:05,467 INFO L276 IsEmpty]: Start isEmpty. Operand 32530 states and 37424 transitions. [2020-10-14 21:01:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-10-14 21:01:05,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:05,496 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:05,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 21:01:05,497 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:05,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:05,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1777900376, now seen corresponding path program 1 times [2020-10-14 21:01:05,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:05,506 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440846064] [2020-10-14 21:01:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:05,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:05,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:07,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:07,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 430 [2020-10-14 21:01:07,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:07,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1765 [2020-10-14 21:01:07,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:07,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:07,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:07,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 317 [2020-10-14 21:01:07,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 21:01:07,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:07,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:07,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:07,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:07,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:07,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:01:07,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:07,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:07,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:07,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:07,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:07,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:07,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:07,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:01:07,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:07,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:01:07,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:07,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:07,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:01:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:07,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:07,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:07,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 21:01:07,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 21:01:07,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:07,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 21:01:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:07,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-10-14 21:01:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:07,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:07,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:07,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:01:07,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:07,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 21:01:07,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:07,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:07,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:07,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:07,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:01:07,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-14 21:01:07,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440846064] [2020-10-14 21:01:07,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:07,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:01:07,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649317401] [2020-10-14 21:01:07,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:01:07,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:07,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:01:07,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:01:07,933 INFO L87 Difference]: Start difference. First operand 32530 states and 37424 transitions. Second operand 7 states. [2020-10-14 21:01:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:10,889 INFO L93 Difference]: Finished difference Result 62655 states and 72248 transitions. [2020-10-14 21:01:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:01:10,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 416 [2020-10-14 21:01:10,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:10,958 INFO L225 Difference]: With dead ends: 62655 [2020-10-14 21:01:10,958 INFO L226 Difference]: Without dead ends: 34956 [2020-10-14 21:01:10,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:01:11,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34956 states. [2020-10-14 21:01:11,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34956 to 33704. [2020-10-14 21:01:11,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33704 states. [2020-10-14 21:01:11,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33704 states to 33704 states and 38625 transitions. [2020-10-14 21:01:11,526 INFO L78 Accepts]: Start accepts. Automaton has 33704 states and 38625 transitions. Word has length 416 [2020-10-14 21:01:11,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:11,526 INFO L479 AbstractCegarLoop]: Abstraction has 33704 states and 38625 transitions. [2020-10-14 21:01:11,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:01:11,527 INFO L276 IsEmpty]: Start isEmpty. Operand 33704 states and 38625 transitions. [2020-10-14 21:01:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-10-14 21:01:11,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:11,539 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 21:01:11,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 21:01:11,540 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:11,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:11,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1590125060, now seen corresponding path program 1 times [2020-10-14 21:01:11,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:11,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529389772] [2020-10-14 21:01:11,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:11,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:11,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:12,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:12,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:16,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:16,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:16,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:16,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 437 [2020-10-14 21:01:16,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:01:16,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 21:01:16,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:16,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:16,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 21:01:16,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:01:16,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 408 [2020-10-14 21:01:16,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:16,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:16,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:16,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:16,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:16,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:16,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:01:16,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:16,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:16,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:16,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:16,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:01:16,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:16,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:16,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:16,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:16,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:16,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:01:16,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:16,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 21:01:16,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:16,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:16,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 21:01:16,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:16,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 21:01:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:17,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:17,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:17,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:17,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-14 21:01:17,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:17,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-14 21:01:17,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:17,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:17,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:17,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-14 21:01:17,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:17,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-14 21:01:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:17,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:17,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:17,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:01:17,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:17,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 21:01:17,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:17,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:17,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:01:17,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:17,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:01:17,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:17,566 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 218 proven. 10 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-14 21:01:17,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529389772] [2020-10-14 21:01:17,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:17,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:01:17,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152635715] [2020-10-14 21:01:17,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:01:17,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:17,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:01:17,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:01:17,568 INFO L87 Difference]: Start difference. First operand 33704 states and 38625 transitions. Second operand 8 states. [2020-10-14 21:01:19,451 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-14 21:01:21,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:21,151 INFO L93 Difference]: Finished difference Result 62391 states and 72536 transitions. [2020-10-14 21:01:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:01:21,152 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 423 [2020-10-14 21:01:21,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:21,212 INFO L225 Difference]: With dead ends: 62391 [2020-10-14 21:01:21,213 INFO L226 Difference]: Without dead ends: 34072 [2020-10-14 21:01:21,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:01:21,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34072 states. [2020-10-14 21:01:21,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34072 to 33696. [2020-10-14 21:01:21,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33696 states. [2020-10-14 21:01:21,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33696 states to 33696 states and 38555 transitions. [2020-10-14 21:01:21,638 INFO L78 Accepts]: Start accepts. Automaton has 33696 states and 38555 transitions. Word has length 423 [2020-10-14 21:01:21,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:21,638 INFO L479 AbstractCegarLoop]: Abstraction has 33696 states and 38555 transitions. [2020-10-14 21:01:21,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:01:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand 33696 states and 38555 transitions. [2020-10-14 21:01:21,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2020-10-14 21:01:21,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:21,647 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 21:01:21,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 21:01:21,648 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:21,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:21,648 INFO L82 PathProgramCache]: Analyzing trace with hash 816391567, now seen corresponding path program 1 times [2020-10-14 21:01:21,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:21,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744804256] [2020-10-14 21:01:21,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:21,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:22,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:23,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:23,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 450 [2020-10-14 21:01:23,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:01:23,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1729 [2020-10-14 21:01:23,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:23,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:23,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:23,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 338 [2020-10-14 21:01:23,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 21:01:23,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:23,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:23,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:23,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:23,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:23,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:23,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:01:23,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:23,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:23,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:23,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:23,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:23,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:23,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:23,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 21:01:23,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:01:23,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:23,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:23,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:23,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:23,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 21:01:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:23,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:23,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:23,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 21:01:23,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:23,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 21:01:23,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:23,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:23,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:23,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:23,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 21:01:23,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-14 21:01:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:23,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:23,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:23,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:01:23,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 21:01:23,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:23,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:23,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:01:23,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:24,036 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-14 21:01:24,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744804256] [2020-10-14 21:01:24,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:24,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:01:24,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694941120] [2020-10-14 21:01:24,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:01:24,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:24,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:01:24,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:01:24,038 INFO L87 Difference]: Start difference. First operand 33696 states and 38555 transitions. Second operand 7 states. [2020-10-14 21:01:27,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:27,555 INFO L93 Difference]: Finished difference Result 62481 states and 71637 transitions. [2020-10-14 21:01:27,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:01:27,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 436 [2020-10-14 21:01:27,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:27,608 INFO L225 Difference]: With dead ends: 62481 [2020-10-14 21:01:27,608 INFO L226 Difference]: Without dead ends: 34202 [2020-10-14 21:01:27,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:01:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34202 states. [2020-10-14 21:01:27,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34202 to 33126. [2020-10-14 21:01:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33126 states. [2020-10-14 21:01:27,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33126 states to 33126 states and 37825 transitions. [2020-10-14 21:01:27,981 INFO L78 Accepts]: Start accepts. Automaton has 33126 states and 37825 transitions. Word has length 436 [2020-10-14 21:01:27,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:27,982 INFO L479 AbstractCegarLoop]: Abstraction has 33126 states and 37825 transitions. [2020-10-14 21:01:27,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:01:27,982 INFO L276 IsEmpty]: Start isEmpty. Operand 33126 states and 37825 transitions. [2020-10-14 21:01:27,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2020-10-14 21:01:27,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:27,990 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:01:27,990 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 21:01:27,990 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:27,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:27,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1605661451, now seen corresponding path program 1 times [2020-10-14 21:01:27,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:27,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744213769] [2020-10-14 21:01:27,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:28,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:28,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:28,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 460 [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2804 [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 21:01:30,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:30,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:30,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:30,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:30,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:30,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:01:30,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:30,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:30,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:30,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:30,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:30,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:30,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:30,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:01:30,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:01:30,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:30,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:30,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:30,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:31,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:01:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:31,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:31,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:31,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 21:01:31,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:31,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:01:31,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:31,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:31,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:31,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:31,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 21:01:31,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:31,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 21:01:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:31,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:31,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:31,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:01:31,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:31,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 21:01:31,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:31,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:31,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:31,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:31,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:01:31,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:31,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-14 21:01:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:31,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:31,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:31,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 21:01:31,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:31,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:01:31,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:31,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-14 21:01:31,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:31,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 297 proven. 85 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-14 21:01:31,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744213769] [2020-10-14 21:01:31,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:31,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:01:31,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886548869] [2020-10-14 21:01:31,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:01:31,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:31,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:01:31,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:01:31,381 INFO L87 Difference]: Start difference. First operand 33126 states and 37825 transitions. Second operand 7 states. [2020-10-14 21:01:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:35,230 INFO L93 Difference]: Finished difference Result 70620 states and 81908 transitions. [2020-10-14 21:01:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:01:35,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 444 [2020-10-14 21:01:35,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:35,296 INFO L225 Difference]: With dead ends: 70620 [2020-10-14 21:01:35,296 INFO L226 Difference]: Without dead ends: 37878 [2020-10-14 21:01:35,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 21:01:35,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37878 states. [2020-10-14 21:01:35,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37878 to 35604. [2020-10-14 21:01:35,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35604 states. [2020-10-14 21:01:35,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35604 states to 35604 states and 40459 transitions. [2020-10-14 21:01:35,728 INFO L78 Accepts]: Start accepts. Automaton has 35604 states and 40459 transitions. Word has length 444 [2020-10-14 21:01:35,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:35,729 INFO L479 AbstractCegarLoop]: Abstraction has 35604 states and 40459 transitions. [2020-10-14 21:01:35,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:01:35,729 INFO L276 IsEmpty]: Start isEmpty. Operand 35604 states and 40459 transitions. [2020-10-14 21:01:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2020-10-14 21:01:35,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:35,740 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:01:35,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 21:01:35,740 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:35,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:35,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1241058210, now seen corresponding path program 1 times [2020-10-14 21:01:35,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:35,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094088066] [2020-10-14 21:01:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:35,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:35,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:37,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:38,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:38,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 460 [2020-10-14 21:01:38,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:01:38,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2293 [2020-10-14 21:01:38,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:38,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:38,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:38,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-10-14 21:01:38,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 21:01:38,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:38,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:38,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:38,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:38,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:38,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:38,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:01:38,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:38,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:38,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:38,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:38,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:38,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:01:38,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:38,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:38,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:38,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:01:38,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:38,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:01:38,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:38,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:38,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:38,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:01:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:38,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:38,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:38,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:01:38,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 21:01:38,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:38,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:38,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-14 21:01:38,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:38,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-14 21:01:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:38,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:38,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:38,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 21:01:38,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:38,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-14 21:01:38,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:38,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:38,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 21:01:38,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 335 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 21:01:38,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094088066] [2020-10-14 21:01:38,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:38,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:01:38,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088801316] [2020-10-14 21:01:38,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:01:38,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:38,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:01:38,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:01:38,855 INFO L87 Difference]: Start difference. First operand 35604 states and 40459 transitions. Second operand 7 states. [2020-10-14 21:01:43,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:43,421 INFO L93 Difference]: Finished difference Result 68166 states and 77495 transitions. [2020-10-14 21:01:43,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:01:43,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 446 [2020-10-14 21:01:43,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:43,478 INFO L225 Difference]: With dead ends: 68166 [2020-10-14 21:01:43,478 INFO L226 Difference]: Without dead ends: 36797 [2020-10-14 21:01:43,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:01:43,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36797 states. [2020-10-14 21:01:43,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36797 to 34785. [2020-10-14 21:01:43,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34785 states. [2020-10-14 21:01:43,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34785 states to 34785 states and 38938 transitions. [2020-10-14 21:01:43,880 INFO L78 Accepts]: Start accepts. Automaton has 34785 states and 38938 transitions. Word has length 446 [2020-10-14 21:01:43,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:43,880 INFO L479 AbstractCegarLoop]: Abstraction has 34785 states and 38938 transitions. [2020-10-14 21:01:43,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:01:43,880 INFO L276 IsEmpty]: Start isEmpty. Operand 34785 states and 38938 transitions. [2020-10-14 21:01:43,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2020-10-14 21:01:43,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:43,891 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 21:01:43,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 21:01:43,891 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:43,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:43,892 INFO L82 PathProgramCache]: Analyzing trace with hash 78587841, now seen corresponding path program 1 times [2020-10-14 21:01:43,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:43,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643600486] [2020-10-14 21:01:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:43,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:44,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:45,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:45,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 473 [2020-10-14 21:01:45,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:01:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1963 [2020-10-14 21:01:45,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:45,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-14 21:01:45,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 21:01:45,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:46,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:46,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:46,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:46,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:46,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:01:46,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:46,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:46,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:46,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:46,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:46,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:46,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:46,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:01:46,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:01:46,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:46,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:46,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:46,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-14 21:01:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:46,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:46,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:46,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 21:01:46,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:46,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 21:01:46,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:46,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:46,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-14 21:01:46,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:46,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 21:01:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:46,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:46,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:46,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 21:01:46,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:46,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-14 21:01:46,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:46,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:46,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 21:01:46,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:46,919 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 356 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-14 21:01:46,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643600486] [2020-10-14 21:01:46,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:46,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:01:46,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637553859] [2020-10-14 21:01:46,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:01:46,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:46,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:01:46,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:01:46,920 INFO L87 Difference]: Start difference. First operand 34785 states and 38938 transitions. Second operand 7 states. [2020-10-14 21:01:50,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:50,201 INFO L93 Difference]: Finished difference Result 65447 states and 73175 transitions. [2020-10-14 21:01:50,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:01:50,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 459 [2020-10-14 21:01:50,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:50,293 INFO L225 Difference]: With dead ends: 65447 [2020-10-14 21:01:50,294 INFO L226 Difference]: Without dead ends: 34915 [2020-10-14 21:01:50,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:01:50,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34915 states. [2020-10-14 21:01:50,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34915 to 33999. [2020-10-14 21:01:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33999 states. [2020-10-14 21:01:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33999 states to 33999 states and 37670 transitions. [2020-10-14 21:01:50,759 INFO L78 Accepts]: Start accepts. Automaton has 33999 states and 37670 transitions. Word has length 459 [2020-10-14 21:01:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:50,760 INFO L479 AbstractCegarLoop]: Abstraction has 33999 states and 37670 transitions. [2020-10-14 21:01:50,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:01:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 33999 states and 37670 transitions. [2020-10-14 21:01:50,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2020-10-14 21:01:50,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:50,772 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 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 21:01:50,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 21:01:50,772 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:50,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:50,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1263558448, now seen corresponding path program 1 times [2020-10-14 21:01:50,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:50,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604518280] [2020-10-14 21:01:50,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:50,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:51,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:51,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:51,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:54,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:54,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 481 [2020-10-14 21:01:54,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:01:54,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3492 [2020-10-14 21:01:54,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:54,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:01:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 21:01:54,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-14 21:01:54,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:54,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:54,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:54,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:54,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:54,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:54,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:01:54,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:54,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:54,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:54,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:54,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:54,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:01:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:54,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:54,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:54,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:01:54,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:54,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:01:54,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:54,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:54,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:54,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:54,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:54,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:01:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:54,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:54,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:54,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:01:54,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:54,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 21:01:54,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:54,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:54,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:01:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-14 21:01:54,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:54,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 21:01:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:54,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:54,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:54,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 21:01:54,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:54,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 21:01:54,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:54,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 21:01:54,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:54,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-14 21:01:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:54,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:54,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:54,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 21:01:54,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:54,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 21:01:54,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:54,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:01:54,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:01:54,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:55,121 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 477 proven. 6 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-10-14 21:01:55,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604518280] [2020-10-14 21:01:55,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:01:55,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:01:55,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136948063] [2020-10-14 21:01:55,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:01:55,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:01:55,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:01:55,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:01:55,122 INFO L87 Difference]: Start difference. First operand 33999 states and 37670 transitions. Second operand 7 states. [2020-10-14 21:01:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:01:58,721 INFO L93 Difference]: Finished difference Result 64476 states and 71668 transitions. [2020-10-14 21:01:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:01:58,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 465 [2020-10-14 21:01:58,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:01:58,786 INFO L225 Difference]: With dead ends: 64476 [2020-10-14 21:01:58,787 INFO L226 Difference]: Without dead ends: 35488 [2020-10-14 21:01:58,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:01:58,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35488 states. [2020-10-14 21:01:59,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35488 to 33805. [2020-10-14 21:01:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33805 states. [2020-10-14 21:01:59,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33805 states to 33805 states and 37404 transitions. [2020-10-14 21:01:59,368 INFO L78 Accepts]: Start accepts. Automaton has 33805 states and 37404 transitions. Word has length 465 [2020-10-14 21:01:59,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:01:59,369 INFO L479 AbstractCegarLoop]: Abstraction has 33805 states and 37404 transitions. [2020-10-14 21:01:59,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:01:59,369 INFO L276 IsEmpty]: Start isEmpty. Operand 33805 states and 37404 transitions. [2020-10-14 21:01:59,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-10-14 21:01:59,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:01:59,378 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:59,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-14 21:01:59,378 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:01:59,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:01:59,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1280177714, now seen corresponding path program 1 times [2020-10-14 21:01:59,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:01:59,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138328795] [2020-10-14 21:01:59,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:01:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:59,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:59,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:59,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 484 [2020-10-14 21:01:59,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:59,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-10-14 21:01:59,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:59,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:59,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:01:59,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 447 [2020-10-14 21:01:59,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 21:01:59,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:01:59,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:01:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:01:59,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:01:59,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:01:59,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:01:59,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:01:59,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:01:59,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:01:59,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:01:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:01:59,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:01:59,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:01:59,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:00,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:00,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:00,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:00,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:00,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 21:02:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:00,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:00,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:00,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-14 21:02:00,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:00,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:02:00,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:00,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:00,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:00,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:00,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:00,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 21:02:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:00,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:00,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:00,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 21:02:00,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 21:02:00,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:00,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:00,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 21:02:00,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 93 proven. 3 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2020-10-14 21:02:00,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138328795] [2020-10-14 21:02:00,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:00,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:02:00,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392560232] [2020-10-14 21:02:00,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:02:00,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:00,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:02:00,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:02:00,466 INFO L87 Difference]: Start difference. First operand 33805 states and 37404 transitions. Second operand 5 states. [2020-10-14 21:02:02,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:02,870 INFO L93 Difference]: Finished difference Result 36411 states and 40283 transitions. [2020-10-14 21:02:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:02:02,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 470 [2020-10-14 21:02:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:02,924 INFO L225 Difference]: With dead ends: 36411 [2020-10-14 21:02:02,924 INFO L226 Difference]: Without dead ends: 36409 [2020-10-14 21:02:02,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 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 21:02:02,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36409 states. [2020-10-14 21:02:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36409 to 34373. [2020-10-14 21:02:03,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34373 states. [2020-10-14 21:02:03,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34373 states to 34373 states and 38082 transitions. [2020-10-14 21:02:03,304 INFO L78 Accepts]: Start accepts. Automaton has 34373 states and 38082 transitions. Word has length 470 [2020-10-14 21:02:03,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:03,304 INFO L479 AbstractCegarLoop]: Abstraction has 34373 states and 38082 transitions. [2020-10-14 21:02:03,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:02:03,305 INFO L276 IsEmpty]: Start isEmpty. Operand 34373 states and 38082 transitions. [2020-10-14 21:02:03,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2020-10-14 21:02:03,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:03,314 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:02:03,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-14 21:02:03,314 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:03,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:03,314 INFO L82 PathProgramCache]: Analyzing trace with hash -566199386, now seen corresponding path program 1 times [2020-10-14 21:02:03,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:03,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797999665] [2020-10-14 21:02:03,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:03,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:03,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:03,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:06,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:06,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 487 [2020-10-14 21:02:06,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:02:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2674 [2020-10-14 21:02:06,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:06,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-14 21:02:06,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 21:02:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:06,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:06,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:06,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:06,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:06,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:02:06,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:06,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:06,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:06,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:06,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 21:02:06,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:06,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:02:06,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:06,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:06,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-14 21:02:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:06,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:06,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:06,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 21:02:06,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:06,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 21:02:06,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:06,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:06,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:06,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:06,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-14 21:02:06,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:06,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-14 21:02:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:06,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:06,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:06,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:02:06,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:06,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 21:02:06,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:06,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:06,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 21:02:06,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:06,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-14 21:02:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:06,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:06,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 21:02:06,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:06,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:02:06,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:06,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-14 21:02:06,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:06,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 299 proven. 85 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2020-10-14 21:02:06,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797999665] [2020-10-14 21:02:06,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:06,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:02:06,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171228426] [2020-10-14 21:02:06,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:02:06,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:06,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:02:06,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:02:06,581 INFO L87 Difference]: Start difference. First operand 34373 states and 38082 transitions. Second operand 7 states. [2020-10-14 21:02:10,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:10,378 INFO L93 Difference]: Finished difference Result 73537 states and 82659 transitions. [2020-10-14 21:02:10,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:02:10,380 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 471 [2020-10-14 21:02:10,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:10,454 INFO L225 Difference]: With dead ends: 73537 [2020-10-14 21:02:10,454 INFO L226 Difference]: Without dead ends: 39548 [2020-10-14 21:02:10,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 21:02:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39548 states. [2020-10-14 21:02:10,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39548 to 36853. [2020-10-14 21:02:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36853 states. [2020-10-14 21:02:10,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36853 states to 36853 states and 40684 transitions. [2020-10-14 21:02:10,973 INFO L78 Accepts]: Start accepts. Automaton has 36853 states and 40684 transitions. Word has length 471 [2020-10-14 21:02:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:10,973 INFO L479 AbstractCegarLoop]: Abstraction has 36853 states and 40684 transitions. [2020-10-14 21:02:10,973 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:02:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 36853 states and 40684 transitions. [2020-10-14 21:02:10,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2020-10-14 21:02:10,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:10,984 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 21:02:10,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-14 21:02:10,984 INFO L427 AbstractCegarLoop]: === Iteration 32 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:10,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:10,985 INFO L82 PathProgramCache]: Analyzing trace with hash 669857856, now seen corresponding path program 1 times [2020-10-14 21:02:10,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:10,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136135432] [2020-10-14 21:02:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:11,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:11,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:12,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:13,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:13,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 529 [2020-10-14 21:02:13,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:02:13,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2141 [2020-10-14 21:02:13,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:13,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 338 [2020-10-14 21:02:13,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 21:02:13,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:13,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:13,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:13,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:13,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:13,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:13,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:02:13,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:13,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:13,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:13,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:13,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:13,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:13,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:13,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:13,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:13,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 21:02:13,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:13,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:02:13,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:13,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:13,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:13,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:13,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:13,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:13,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 21:02:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:13,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:13,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:13,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 21:02:13,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:13,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 21:02:13,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:13,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:13,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 21:02:13,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:13,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-14 21:02:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:13,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:13,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:13,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 21:02:13,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:13,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-14 21:02:13,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:13,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:13,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:13,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-14 21:02:13,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:14,024 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 393 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-14 21:02:14,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1136135432] [2020-10-14 21:02:14,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:14,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:02:14,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902925086] [2020-10-14 21:02:14,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:02:14,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:14,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:02:14,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:02:14,026 INFO L87 Difference]: Start difference. First operand 36853 states and 40684 transitions. Second operand 7 states. [2020-10-14 21:02:17,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:17,845 INFO L93 Difference]: Finished difference Result 74562 states and 82278 transitions. [2020-10-14 21:02:17,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:02:17,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 515 [2020-10-14 21:02:17,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:17,917 INFO L225 Difference]: With dead ends: 74562 [2020-10-14 21:02:17,917 INFO L226 Difference]: Without dead ends: 38093 [2020-10-14 21:02:17,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:02:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38093 states. [2020-10-14 21:02:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38093 to 36421. [2020-10-14 21:02:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36421 states. [2020-10-14 21:02:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36421 states to 36421 states and 39829 transitions. [2020-10-14 21:02:18,337 INFO L78 Accepts]: Start accepts. Automaton has 36421 states and 39829 transitions. Word has length 515 [2020-10-14 21:02:18,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:18,337 INFO L479 AbstractCegarLoop]: Abstraction has 36421 states and 39829 transitions. [2020-10-14 21:02:18,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:02:18,338 INFO L276 IsEmpty]: Start isEmpty. Operand 36421 states and 39829 transitions. [2020-10-14 21:02:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2020-10-14 21:02:18,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:18,349 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 21:02:18,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-14 21:02:18,349 INFO L427 AbstractCegarLoop]: === Iteration 33 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:18,350 INFO L82 PathProgramCache]: Analyzing trace with hash 838722018, now seen corresponding path program 1 times [2020-10-14 21:02:18,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:18,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349260804] [2020-10-14 21:02:18,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:18,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:18,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:18,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:19,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:23,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:23,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 550 [2020-10-14 21:02:23,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:02:23,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4936 [2020-10-14 21:02:23,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:23,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:23,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:23,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-14 21:02:23,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-14 21:02:23,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:23,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:23,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:23,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:23,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:23,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:23,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:02:23,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:23,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:23,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:23,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:23,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:23,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:23,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:23,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-14 21:02:23,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:23,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 21:02:23,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:23,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:02:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:23,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 21:02:23,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:23,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-14 21:02:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:23,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:23,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:23,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-14 21:02:23,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:23,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 21:02:23,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:23,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:02:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:02:23,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 21:02:23,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:23,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-10-14 21:02:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:23,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:23,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:23,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 21:02:23,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:23,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:02:23,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:23,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 21:02:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:23,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2020-10-14 21:02:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:23,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:23,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:23,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 21:02:23,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 21:02:23,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:23,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-14 21:02:23,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 268 proven. 203 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2020-10-14 21:02:24,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349260804] [2020-10-14 21:02:24,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:02:24,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:02:24,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36029374] [2020-10-14 21:02:24,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:02:24,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:02:24,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:02:24,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:02:24,114 INFO L87 Difference]: Start difference. First operand 36421 states and 39829 transitions. Second operand 7 states. [2020-10-14 21:02:27,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:02:27,726 INFO L93 Difference]: Finished difference Result 69259 states and 76040 transitions. [2020-10-14 21:02:27,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:02:27,727 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 534 [2020-10-14 21:02:27,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:02:27,783 INFO L225 Difference]: With dead ends: 69259 [2020-10-14 21:02:27,783 INFO L226 Difference]: Without dead ends: 37461 [2020-10-14 21:02:27,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:02:28,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37461 states. [2020-10-14 21:02:28,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37461 to 30325. [2020-10-14 21:02:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30325 states. [2020-10-14 21:02:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30325 states to 30325 states and 33276 transitions. [2020-10-14 21:02:28,341 INFO L78 Accepts]: Start accepts. Automaton has 30325 states and 33276 transitions. Word has length 534 [2020-10-14 21:02:28,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:02:28,342 INFO L479 AbstractCegarLoop]: Abstraction has 30325 states and 33276 transitions. [2020-10-14 21:02:28,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:02:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 30325 states and 33276 transitions. [2020-10-14 21:02:28,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2020-10-14 21:02:28,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:02:28,352 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 21:02:28,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-14 21:02:28,353 INFO L427 AbstractCegarLoop]: === Iteration 34 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:02:28,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:02:28,353 INFO L82 PathProgramCache]: Analyzing trace with hash 924992012, now seen corresponding path program 1 times [2020-10-14 21:02:28,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:02:28,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042794440] [2020-10-14 21:02:28,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:02:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:28,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:29,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:29,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:29,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 554 [2020-10-14 21:02:29,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:02:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1108 [2020-10-14 21:02:29,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:29,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:29,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:02:29,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 442 [2020-10-14 21:02:29,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 21:02:29,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:29,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:02:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:29,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:29,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:29,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:02:29,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:29,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:02:29,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:29,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:29,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:29,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:29,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:29,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:29,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:02:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:29,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:29,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:29,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 21:02:29,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:02:29,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:29,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-14 21:02:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:02:29,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:02:29,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:02:29,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-14 21:02:29,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:02:29,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 21:02:29,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:02:29,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:02:29,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:02:29,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:02:29,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:02:29,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:02:29,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-14 21:02:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat