/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:55:24,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:55:24,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:55:25,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:55:25,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:55:25,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:55:25,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:55:25,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:55:25,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:55:25,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:55:25,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:55:25,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:55:25,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:55:25,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:55:25,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:55:25,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:55:25,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:55:25,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:55:25,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:55:25,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:55:25,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:55:25,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:55:25,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:55:25,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:55:25,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:55:25,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:55:25,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:55:25,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:55:25,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:55:25,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:55:25,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:55:25,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:55:25,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:55:25,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:55:25,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:55:25,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:55:25,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:55:25,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:55:25,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:55:25,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:55:25,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:55:25,079 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 00:55:25,110 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:55:25,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:55:25,111 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:55:25,111 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:55:25,111 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:55:25,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:55:25,112 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:55:25,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:55:25,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:55:25,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:55:25,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:55:25,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:55:25,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:55:25,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:55:25,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:55:25,115 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:55:25,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:55:25,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:55:25,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:55:25,115 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:55:25,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:55:25,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:55:25,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:55:25,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:55:25,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:55:25,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:55:25,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:55:25,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:55:25,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:55:25,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:55:25,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:55:25,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:55:25,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:55:25,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:55:25,426 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:55:25,427 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label51.c [2020-10-14 00:55:25,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dcfd4eed/23ded5fa4e8f4ccfb7183bb01c465469/FLAG97a4f3466 [2020-10-14 00:55:26,119 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:55:26,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label51.c [2020-10-14 00:55:26,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dcfd4eed/23ded5fa4e8f4ccfb7183bb01c465469/FLAG97a4f3466 [2020-10-14 00:55:26,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2dcfd4eed/23ded5fa4e8f4ccfb7183bb01c465469 [2020-10-14 00:55:26,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:55:26,288 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:55:26,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:55:26,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:55:26,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:55:26,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:55:26" (1/1) ... [2020-10-14 00:55:26,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@794240ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:26, skipping insertion in model container [2020-10-14 00:55:26,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:55:26" (1/1) ... [2020-10-14 00:55:26,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:55:26,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:55:27,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:55:27,151 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:55:27,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:55:27,415 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:55:27,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27 WrapperNode [2020-10-14 00:55:27,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:55:27,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:55:27,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:55:27,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:55:27,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (1/1) ... [2020-10-14 00:55:27,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (1/1) ... [2020-10-14 00:55:27,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (1/1) ... [2020-10-14 00:55:27,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (1/1) ... [2020-10-14 00:55:27,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (1/1) ... [2020-10-14 00:55:27,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (1/1) ... [2020-10-14 00:55:27,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (1/1) ... [2020-10-14 00:55:27,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:55:27,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:55:27,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:55:27,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:55:27,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (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 00:55:27,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:55:27,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:55:27,711 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 00:55:27,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:55:27,712 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 00:55:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:55:27,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:55:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 00:55:27,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:55:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:55:27,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:55:29,730 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:55:29,731 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 00:55:29,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:55:29 BoogieIcfgContainer [2020-10-14 00:55:29,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:55:29,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:55:29,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:55:29,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:55:29,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:55:26" (1/3) ... [2020-10-14 00:55:29,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ac93b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:55:29, skipping insertion in model container [2020-10-14 00:55:29,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:55:27" (2/3) ... [2020-10-14 00:55:29,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ac93b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:55:29, skipping insertion in model container [2020-10-14 00:55:29,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:55:29" (3/3) ... [2020-10-14 00:55:29,752 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label51.c [2020-10-14 00:55:29,762 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:55:29,778 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:55:29,793 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:55:29,829 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:55:29,831 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:55:29,831 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:55:29,831 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:55:29,831 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:55:29,831 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:55:29,832 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:55:29,832 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:55:29,864 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-10-14 00:55:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-14 00:55:29,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:29,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:29,898 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:29,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:29,904 INFO L82 PathProgramCache]: Analyzing trace with hash 388330613, now seen corresponding path program 1 times [2020-10-14 00:55:29,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:29,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158794429] [2020-10-14 00:55:29,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:30,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:31,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:33,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:33,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 00:55:33,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:55:33,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3164 [2020-10-14 00:55:33,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:33,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:55:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:55:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 196 [2020-10-14 00:55:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 00:55:33,972 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:33,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:33,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:34,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:34,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:34,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:34,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:55:34,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:34,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:55:34,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:34,094 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 00:55:34,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158794429] [2020-10-14 00:55:34,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:55:34,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 00:55:34,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884504571] [2020-10-14 00:55:34,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:55:34,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:34,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:55:34,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:34,120 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 5 states. [2020-10-14 00:55:34,336 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:34,757 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:55:37,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:37,944 INFO L93 Difference]: Finished difference Result 1107 states and 1968 transitions. [2020-10-14 00:55:37,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 00:55:37,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 194 [2020-10-14 00:55:37,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:37,984 INFO L225 Difference]: With dead ends: 1107 [2020-10-14 00:55:37,984 INFO L226 Difference]: Without dead ends: 699 [2020-10-14 00:55:37,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:55:38,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2020-10-14 00:55:38,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 474. [2020-10-14 00:55:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2020-10-14 00:55:38,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 720 transitions. [2020-10-14 00:55:38,089 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 720 transitions. Word has length 194 [2020-10-14 00:55:38,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:38,091 INFO L479 AbstractCegarLoop]: Abstraction has 474 states and 720 transitions. [2020-10-14 00:55:38,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:55:38,091 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 720 transitions. [2020-10-14 00:55:38,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-14 00:55:38,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:38,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:55:38,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:55:38,098 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:38,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:38,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1942702817, now seen corresponding path program 1 times [2020-10-14 00:55:38,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:38,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213484855] [2020-10-14 00:55:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:38,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:38,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:40,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:41,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:41,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 00:55:41,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:55:41,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3584 [2020-10-14 00:55:41,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:41,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:41,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:41,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 00:55:41,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 00:55:41,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:42,042 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:42,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:42,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:42,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:42,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:42,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:55:42,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:42,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:42,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:42,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:42,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:42,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:42,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:42,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:55:42,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:42,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 00:55:42,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:42,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 00:55:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:55:42,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213484855] [2020-10-14 00:55:42,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:42,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:42,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990637839] [2020-10-14 00:55:42,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:55:42,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:42,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:55:42,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:42,248 INFO L87 Difference]: Start difference. First operand 474 states and 720 transitions. Second operand 5 states. [2020-10-14 00:55:42,552 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:44,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:44,878 INFO L93 Difference]: Finished difference Result 1368 states and 2108 transitions. [2020-10-14 00:55:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:55:44,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 206 [2020-10-14 00:55:44,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:44,887 INFO L225 Difference]: With dead ends: 1368 [2020-10-14 00:55:44,888 INFO L226 Difference]: Without dead ends: 900 [2020-10-14 00:55:44,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-10-14 00:55:44,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 894. [2020-10-14 00:55:44,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-14 00:55:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1212 transitions. [2020-10-14 00:55:44,948 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1212 transitions. Word has length 206 [2020-10-14 00:55:44,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:44,949 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1212 transitions. [2020-10-14 00:55:44,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:55:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1212 transitions. [2020-10-14 00:55:44,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-14 00:55:44,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:44,955 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:44,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:55:44,955 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:44,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1307095378, now seen corresponding path program 1 times [2020-10-14 00:55:44,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:44,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288913155] [2020-10-14 00:55:44,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:45,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:45,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:46,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:46,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 231 [2020-10-14 00:55:46,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:55:46,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1855 [2020-10-14 00:55:46,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:46,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 00:55:46,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 00:55:46,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:47,088 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:47,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:47,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:47,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:47,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:47,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:47,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:55:47,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:47,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:47,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:47,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:47,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:47,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:47,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:47,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:47,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 00:55:47,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:47,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 00:55:47,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:47,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:47,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 00:55:47,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:47,420 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:55:47,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288913155] [2020-10-14 00:55:47,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:47,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:47,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372220564] [2020-10-14 00:55:47,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:55:47,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:47,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:55:47,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:47,424 INFO L87 Difference]: Start difference. First operand 894 states and 1212 transitions. Second operand 5 states. [2020-10-14 00:55:47,705 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:50,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:50,343 INFO L93 Difference]: Finished difference Result 2643 states and 3648 transitions. [2020-10-14 00:55:50,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:55:50,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 221 [2020-10-14 00:55:50,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:50,354 INFO L225 Difference]: With dead ends: 2643 [2020-10-14 00:55:50,354 INFO L226 Difference]: Without dead ends: 1755 [2020-10-14 00:55:50,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2020-10-14 00:55:50,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1735. [2020-10-14 00:55:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1735 states. [2020-10-14 00:55:50,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2340 transitions. [2020-10-14 00:55:50,430 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2340 transitions. Word has length 221 [2020-10-14 00:55:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:50,435 INFO L479 AbstractCegarLoop]: Abstraction has 1735 states and 2340 transitions. [2020-10-14 00:55:50,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:55:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2340 transitions. [2020-10-14 00:55:50,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-14 00:55:50,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:50,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:50,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:55:50,443 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:50,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:50,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1125068966, now seen corresponding path program 1 times [2020-10-14 00:55:50,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:50,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874910237] [2020-10-14 00:55:50,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:50,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:50,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:52,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:52,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-14 00:55:52,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:55:52,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1950 [2020-10-14 00:55:52,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:52,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:52,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:52,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 00:55:52,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 00:55:52,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:52,653 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:52,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:52,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:52,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:52,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:52,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:52,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:55:52,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:52,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:52,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:52,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:52,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:52,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:52,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:52,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 00:55:52,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:52,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 00:55:52,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:52,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 00:55:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:55:52,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874910237] [2020-10-14 00:55:52,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:52,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:52,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071174275] [2020-10-14 00:55:52,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:55:52,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:52,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:55:52,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:52,915 INFO L87 Difference]: Start difference. First operand 1735 states and 2340 transitions. Second operand 5 states. [2020-10-14 00:55:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:55,652 INFO L93 Difference]: Finished difference Result 4306 states and 6036 transitions. [2020-10-14 00:55:55,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:55:55,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 225 [2020-10-14 00:55:55,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:55,673 INFO L225 Difference]: With dead ends: 4306 [2020-10-14 00:55:55,673 INFO L226 Difference]: Without dead ends: 2577 [2020-10-14 00:55:55,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:55,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2020-10-14 00:55:55,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2571. [2020-10-14 00:55:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2571 states. [2020-10-14 00:55:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3566 transitions. [2020-10-14 00:55:55,786 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3566 transitions. Word has length 225 [2020-10-14 00:55:55,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:55,787 INFO L479 AbstractCegarLoop]: Abstraction has 2571 states and 3566 transitions. [2020-10-14 00:55:55,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:55:55,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3566 transitions. [2020-10-14 00:55:55,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-14 00:55:55,798 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:55,798 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:55,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:55:55,799 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:55,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:55,799 INFO L82 PathProgramCache]: Analyzing trace with hash 207619566, now seen corresponding path program 1 times [2020-10-14 00:55:55,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:55,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556987427] [2020-10-14 00:55:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:55,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:56,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:57,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:57,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 00:55:57,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:55:57,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2044 [2020-10-14 00:55:57,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:57,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 00:55:57,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:55:57,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-14 00:55:57,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:58,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:58,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:58,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:58,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:58,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:58,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:55:58,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:58,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:58,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:55:58,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:58,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:58,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:58,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:58,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:55:58,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:58,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 00:55:58,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:58,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:55:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:55:58,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 00:55:58,416 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 00:55:58,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556987427] [2020-10-14 00:55:58,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:58,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:58,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517074629] [2020-10-14 00:55:58,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 00:55:58,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:58,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 00:55:58,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:58,419 INFO L87 Difference]: Start difference. First operand 2571 states and 3566 transitions. Second operand 6 states. [2020-10-14 00:55:58,562 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:01,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:01,192 INFO L93 Difference]: Finished difference Result 7744 states and 11283 transitions. [2020-10-14 00:56:01,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 00:56:01,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 228 [2020-10-14 00:56:01,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:01,229 INFO L225 Difference]: With dead ends: 7744 [2020-10-14 00:56:01,233 INFO L226 Difference]: Without dead ends: 5179 [2020-10-14 00:56:01,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:56:01,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5179 states. [2020-10-14 00:56:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5179 to 5123. [2020-10-14 00:56:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5123 states. [2020-10-14 00:56:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 7300 transitions. [2020-10-14 00:56:01,428 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 7300 transitions. Word has length 228 [2020-10-14 00:56:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:01,429 INFO L479 AbstractCegarLoop]: Abstraction has 5123 states and 7300 transitions. [2020-10-14 00:56:01,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 00:56:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 7300 transitions. [2020-10-14 00:56:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-14 00:56:01,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:01,449 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:01,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:56:01,450 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:01,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:01,450 INFO L82 PathProgramCache]: Analyzing trace with hash 41008688, now seen corresponding path program 1 times [2020-10-14 00:56:01,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:01,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415404442] [2020-10-14 00:56:01,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:01,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:01,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:05,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:05,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 271 [2020-10-14 00:56:05,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:56:05,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3707 [2020-10-14 00:56:05,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:05,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:05,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:05,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 00:56:05,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 00:56:05,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:05,462 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:05,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:05,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:05,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:05,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:05,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:05,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:56:05,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:05,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:05,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:05,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:05,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:05,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:05,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:56:05,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:05,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 00:56:05,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:05,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:05,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 00:56:05,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:56:05,777 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 63 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:56:05,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415404442] [2020-10-14 00:56:05,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:05,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:56:05,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791459281] [2020-10-14 00:56:05,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:56:05,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:05,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:56:05,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:56:05,779 INFO L87 Difference]: Start difference. First operand 5123 states and 7300 transitions. Second operand 5 states. [2020-10-14 00:56:05,981 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:08,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:08,520 INFO L93 Difference]: Finished difference Result 14664 states and 21600 transitions. [2020-10-14 00:56:08,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:56:08,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 261 [2020-10-14 00:56:08,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:08,568 INFO L225 Difference]: With dead ends: 14664 [2020-10-14 00:56:08,569 INFO L226 Difference]: Without dead ends: 9547 [2020-10-14 00:56:08,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:56:08,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2020-10-14 00:56:08,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 9537. [2020-10-14 00:56:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9537 states. [2020-10-14 00:56:08,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9537 states to 9537 states and 13677 transitions. [2020-10-14 00:56:08,881 INFO L78 Accepts]: Start accepts. Automaton has 9537 states and 13677 transitions. Word has length 261 [2020-10-14 00:56:08,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:08,882 INFO L479 AbstractCegarLoop]: Abstraction has 9537 states and 13677 transitions. [2020-10-14 00:56:08,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:56:08,882 INFO L276 IsEmpty]: Start isEmpty. Operand 9537 states and 13677 transitions. [2020-10-14 00:56:08,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-14 00:56:08,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:08,917 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:08,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:56:08,918 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:08,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:08,918 INFO L82 PathProgramCache]: Analyzing trace with hash 479864495, now seen corresponding path program 1 times [2020-10-14 00:56:08,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:08,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [399522035] [2020-10-14 00:56:08,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:08,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:09,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:11,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:12,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:13,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:13,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-14 00:56:13,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:56:13,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4770 [2020-10-14 00:56:13,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:13,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:13,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:13,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 00:56:13,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 00:56:13,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:13,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:13,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:13,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:13,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:13,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:13,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:56:13,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:13,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:13,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:13,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:13,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:14,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:14,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 00:56:14,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 00:56:14,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:14,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:14,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 00:56:14,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:14,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 00:56:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:14,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:14,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:14,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:56:14,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:14,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 00:56:14,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:14,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 00:56:14,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:14,195 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 00:56:14,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [399522035] [2020-10-14 00:56:14,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:14,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:14,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671588726] [2020-10-14 00:56:14,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:14,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:14,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:14,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:14,198 INFO L87 Difference]: Start difference. First operand 9537 states and 13677 transitions. Second operand 7 states. [2020-10-14 00:56:14,326 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:14,851 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:17,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:17,084 INFO L93 Difference]: Finished difference Result 19296 states and 29108 transitions. [2020-10-14 00:56:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:56:17,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 267 [2020-10-14 00:56:17,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:17,130 INFO L225 Difference]: With dead ends: 19296 [2020-10-14 00:56:17,131 INFO L226 Difference]: Without dead ends: 9765 [2020-10-14 00:56:17,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:56:17,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2020-10-14 00:56:17,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 9641. [2020-10-14 00:56:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9641 states. [2020-10-14 00:56:17,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9641 states to 9641 states and 12928 transitions. [2020-10-14 00:56:17,476 INFO L78 Accepts]: Start accepts. Automaton has 9641 states and 12928 transitions. Word has length 267 [2020-10-14 00:56:17,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:17,477 INFO L479 AbstractCegarLoop]: Abstraction has 9641 states and 12928 transitions. [2020-10-14 00:56:17,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:56:17,477 INFO L276 IsEmpty]: Start isEmpty. Operand 9641 states and 12928 transitions. [2020-10-14 00:56:17,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-14 00:56:17,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:17,523 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:17,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:56:17,523 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:17,524 INFO L82 PathProgramCache]: Analyzing trace with hash 729314616, now seen corresponding path program 1 times [2020-10-14 00:56:17,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:17,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883464165] [2020-10-14 00:56:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:17,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:17,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:17,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:17,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:21,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:22,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:22,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-14 00:56:22,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:56:22,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-14 00:56:22,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:22,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:22,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:22,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 00:56:22,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 00:56:22,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:22,783 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:22,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:22,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:22,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:22,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:56:22,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:22,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:22,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:22,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:22,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:22,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:56:22,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:22,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:56:22,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:22,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:22,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:22,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:56:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:22,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:22,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:22,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:56:22,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:22,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 00:56:22,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:22,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 00:56:22,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:22,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:56:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:22,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:23,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:23,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:56:23,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:23,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 00:56:23,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:23,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:23,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:23,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:23,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 00:56:23,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:56:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 104 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 00:56:23,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883464165] [2020-10-14 00:56:23,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:23,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:23,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553958683] [2020-10-14 00:56:23,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:23,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:23,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:23,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:23,141 INFO L87 Difference]: Start difference. First operand 9641 states and 12928 transitions. Second operand 7 states. [2020-10-14 00:56:23,397 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:24,791 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:56:26,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:26,564 INFO L93 Difference]: Finished difference Result 27361 states and 41750 transitions. [2020-10-14 00:56:26,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:56:26,564 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2020-10-14 00:56:26,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:26,663 INFO L225 Difference]: With dead ends: 27361 [2020-10-14 00:56:26,664 INFO L226 Difference]: Without dead ends: 17726 [2020-10-14 00:56:26,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:56:26,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17726 states. [2020-10-14 00:56:27,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17726 to 17203. [2020-10-14 00:56:27,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17203 states. [2020-10-14 00:56:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17203 states to 17203 states and 22621 transitions. [2020-10-14 00:56:27,319 INFO L78 Accepts]: Start accepts. Automaton has 17203 states and 22621 transitions. Word has length 276 [2020-10-14 00:56:27,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:27,319 INFO L479 AbstractCegarLoop]: Abstraction has 17203 states and 22621 transitions. [2020-10-14 00:56:27,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:56:27,320 INFO L276 IsEmpty]: Start isEmpty. Operand 17203 states and 22621 transitions. [2020-10-14 00:56:27,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-14 00:56:27,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:27,379 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:27,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 00:56:27,379 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:27,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:27,380 INFO L82 PathProgramCache]: Analyzing trace with hash 234320975, now seen corresponding path program 1 times [2020-10-14 00:56:27,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:27,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484723687] [2020-10-14 00:56:27,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:27,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:27,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:27,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:27,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:32,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:32,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-14 00:56:32,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:56:32,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 00:56:32,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:32,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 00:56:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-14 00:56:32,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:32,593 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:32,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:32,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:32,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:32,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:32,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:32,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:56:32,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:32,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:32,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:32,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:32,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:32,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:32,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:56:32,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:32,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:56:32,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:32,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:32,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:32,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:56:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:32,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:32,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:32,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:56:32,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:32,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 00:56:32,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:32,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:32,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:32,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:32,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:56:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:32,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:32,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:32,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:56:32,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:32,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:56:32,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:32,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:32,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:32,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:32,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 00:56:32,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:32,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:56:32,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:32,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:32,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:32,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:56:32,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:32,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 00:56:32,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:32,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:32,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 00:56:32,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:32,940 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 119 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 00:56:32,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484723687] [2020-10-14 00:56:32,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:32,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:32,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614965804] [2020-10-14 00:56:32,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:32,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:32,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:32,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:32,942 INFO L87 Difference]: Start difference. First operand 17203 states and 22621 transitions. Second operand 7 states. [2020-10-14 00:56:33,203 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:56:34,141 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 00:56:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:37,660 INFO L93 Difference]: Finished difference Result 39611 states and 56065 transitions. [2020-10-14 00:56:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:56:37,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 286 [2020-10-14 00:56:37,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:37,758 INFO L225 Difference]: With dead ends: 39611 [2020-10-14 00:56:37,758 INFO L226 Difference]: Without dead ends: 22414 [2020-10-14 00:56:37,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:56:37,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22414 states. [2020-10-14 00:56:38,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22414 to 22014. [2020-10-14 00:56:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22014 states. [2020-10-14 00:56:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22014 states to 22014 states and 28936 transitions. [2020-10-14 00:56:38,441 INFO L78 Accepts]: Start accepts. Automaton has 22014 states and 28936 transitions. Word has length 286 [2020-10-14 00:56:38,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:38,442 INFO L479 AbstractCegarLoop]: Abstraction has 22014 states and 28936 transitions. [2020-10-14 00:56:38,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:56:38,442 INFO L276 IsEmpty]: Start isEmpty. Operand 22014 states and 28936 transitions. [2020-10-14 00:56:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-14 00:56:38,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:38,501 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:38,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 00:56:38,501 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:38,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:38,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1800290593, now seen corresponding path program 1 times [2020-10-14 00:56:38,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:38,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977547928] [2020-10-14 00:56:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:38,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:38,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:38,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:39,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:43,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:43,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 314 [2020-10-14 00:56:43,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:56:43,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 00:56:43,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:43,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:43,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 00:56:43,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 00:56:43,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:43,735 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:43,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:43,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:43,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:43,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:43,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:43,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:56:43,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:43,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:43,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:43,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:43,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:43,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:43,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:43,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:56:43,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:43,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:56:43,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:43,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:43,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:43,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:43,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:56:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:43,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:43,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:43,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:56:43,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:43,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:56:43,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:43,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:43,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:43,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:43,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:56:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:43,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:43,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:43,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:56:43,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:43,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:56:43,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:43,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:43,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:43,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:43,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:56:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:43,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:43,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:43,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:56:43,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:43,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:56:43,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:43,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:43,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:56:43,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:43,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 00:56:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:43,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:43,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:43,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:56:43,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:43,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 00:56:43,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:43,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:43,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:43,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:43,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 00:56:43,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-10-14 00:56:44,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977547928] [2020-10-14 00:56:44,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:44,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:44,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569582205] [2020-10-14 00:56:44,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:44,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:44,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:44,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:44,082 INFO L87 Difference]: Start difference. First operand 22014 states and 28936 transitions. Second operand 7 states. [2020-10-14 00:56:44,319 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 00:56:45,005 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 00:56:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:48,637 INFO L93 Difference]: Finished difference Result 53062 states and 74598 transitions. [2020-10-14 00:56:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:56:48,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 296 [2020-10-14 00:56:48,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:48,771 INFO L225 Difference]: With dead ends: 53062 [2020-10-14 00:56:48,772 INFO L226 Difference]: Without dead ends: 32628 [2020-10-14 00:56:48,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:56:48,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32628 states. [2020-10-14 00:56:49,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32628 to 31646. [2020-10-14 00:56:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31646 states. [2020-10-14 00:56:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31646 states to 31646 states and 41566 transitions. [2020-10-14 00:56:49,593 INFO L78 Accepts]: Start accepts. Automaton has 31646 states and 41566 transitions. Word has length 296 [2020-10-14 00:56:49,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:49,593 INFO L479 AbstractCegarLoop]: Abstraction has 31646 states and 41566 transitions. [2020-10-14 00:56:49,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:56:49,594 INFO L276 IsEmpty]: Start isEmpty. Operand 31646 states and 41566 transitions. [2020-10-14 00:56:49,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-10-14 00:56:49,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:49,648 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:56:49,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 00:56:49,649 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:49,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:49,649 INFO L82 PathProgramCache]: Analyzing trace with hash -392232955, now seen corresponding path program 1 times [2020-10-14 00:56:49,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:49,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202786242] [2020-10-14 00:56:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:49,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:49,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:50,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:51,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:54,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:54,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-14 00:56:54,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:56:54,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 00:56:54,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:54,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:56:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 00:56:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 00:56:54,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:54,883 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:54,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:54,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:54,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:54,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:54,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:54,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:56:54,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:54,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:54,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:54,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:54,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:54,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:54,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:54,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:54,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:54,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:56:54,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:54,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:56:54,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:54,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 00:56:54,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:55,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:56:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:55,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:55,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:55,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:56:55,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 00:56:55,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:55,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:55,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:55,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:55,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:56:55,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:55,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 00:56:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:55,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:55,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:55,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:56:55,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:55,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 00:56:55,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:55,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:55,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:55,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 00:56:55,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:55,305 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 131 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-14 00:56:55,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202786242] [2020-10-14 00:56:55,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:55,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:55,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120438353] [2020-10-14 00:56:55,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:55,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:55,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:55,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:55,307 INFO L87 Difference]: Start difference. First operand 31646 states and 41566 transitions. Second operand 7 states. [2020-10-14 00:56:55,637 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:56:56,892 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 00:57:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:00,825 INFO L93 Difference]: Finished difference Result 67993 states and 93970 transitions. [2020-10-14 00:57:00,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:57:00,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 298 [2020-10-14 00:57:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:00,983 INFO L225 Difference]: With dead ends: 67993 [2020-10-14 00:57:00,984 INFO L226 Difference]: Without dead ends: 37441 [2020-10-14 00:57:01,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:57:01,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37441 states. [2020-10-14 00:57:01,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37441 to 36800. [2020-10-14 00:57:01,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36800 states. [2020-10-14 00:57:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36800 states to 36800 states and 47909 transitions. [2020-10-14 00:57:01,853 INFO L78 Accepts]: Start accepts. Automaton has 36800 states and 47909 transitions. Word has length 298 [2020-10-14 00:57:01,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:01,853 INFO L479 AbstractCegarLoop]: Abstraction has 36800 states and 47909 transitions. [2020-10-14 00:57:01,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand 36800 states and 47909 transitions. [2020-10-14 00:57:01,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-14 00:57:01,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:01,908 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:01,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 00:57:01,908 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:01,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:01,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1438441296, now seen corresponding path program 1 times [2020-10-14 00:57:01,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:01,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531151375] [2020-10-14 00:57:01,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:01,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:02,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:02,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:02,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:02,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:02,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:06,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:06,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 00:57:06,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 00:57:06,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 00:57:06,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:06,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:06,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:06,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 00:57:06,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:57:06,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:07,119 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:07,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:07,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:07,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:07,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:07,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:07,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:57:07,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:07,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:07,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:07,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:07,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:07,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:07,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:07,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:57:07,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:07,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:57:07,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:07,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:07,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:07,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:07,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:07,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:07,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:57:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:07,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:07,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:07,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:57:07,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:07,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 00:57:07,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:07,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:07,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:07,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:57:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:07,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:07,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:07,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:57:07,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:07,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:57:07,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:07,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:07,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 00:57:07,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:07,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:57:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:07,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:07,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:07,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:57:07,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:07,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 00:57:07,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:07,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:07,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 00:57:07,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:07,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 00:57:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:07,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:07,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:57:07,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 00:57:07,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:07,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 00:57:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:07,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:07,596 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 158 proven. 29 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-10-14 00:57:07,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531151375] [2020-10-14 00:57:07,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:07,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:07,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361624176] [2020-10-14 00:57:07,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:07,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:07,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:07,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:07,600 INFO L87 Difference]: Start difference. First operand 36800 states and 47909 transitions. Second operand 7 states. [2020-10-14 00:57:07,845 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:08,926 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:57:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:10,722 INFO L93 Difference]: Finished difference Result 68392 states and 93773 transitions. [2020-10-14 00:57:10,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:57:10,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 316 [2020-10-14 00:57:10,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:10,864 INFO L225 Difference]: With dead ends: 68392 [2020-10-14 00:57:10,865 INFO L226 Difference]: Without dead ends: 35041 [2020-10-14 00:57:10,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:57:10,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35041 states. [2020-10-14 00:57:11,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35041 to 33307. [2020-10-14 00:57:11,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33307 states. [2020-10-14 00:57:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33307 states to 33307 states and 42037 transitions. [2020-10-14 00:57:11,731 INFO L78 Accepts]: Start accepts. Automaton has 33307 states and 42037 transitions. Word has length 316 [2020-10-14 00:57:11,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:11,731 INFO L479 AbstractCegarLoop]: Abstraction has 33307 states and 42037 transitions. [2020-10-14 00:57:11,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 33307 states and 42037 transitions. [2020-10-14 00:57:11,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-14 00:57:11,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:11,766 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:11,766 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 00:57:11,766 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:11,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:11,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1474384814, now seen corresponding path program 1 times [2020-10-14 00:57:11,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:11,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96553422] [2020-10-14 00:57:11,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:11,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:11,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:11,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:12,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:12,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:12,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:16,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:16,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:16,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:16,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 00:57:16,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 00:57:16,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-14 00:57:16,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:16,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:16,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:57:16,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 00:57:16,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:17,116 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:17,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:17,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:17,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:17,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:17,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:57:17,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:17,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:17,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:17,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:57:17,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:17,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:17,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:17,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:57:17,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:17,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 00:57:17,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:17,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:17,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:17,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:17,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 00:57:17,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:17,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:57:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:17,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:17,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:57:17,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:17,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 00:57:17,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:17,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:17,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:17,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:17,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 00:57:17,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:17,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-14 00:57:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:17,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:17,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:57:17,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:17,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:57:17,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:17,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 00:57:17,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:57:17,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:17,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:57:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:17,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:17,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:57:17,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:17,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:57:17,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:17,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 00:57:17,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:17,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:17,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 00:57:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:17,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:17,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:57:17,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:17,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 00:57:17,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:17,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:17,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:17,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 00:57:17,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:17,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:17,562 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 125 proven. 4 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-14 00:57:17,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96553422] [2020-10-14 00:57:17,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:17,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 00:57:17,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109243260] [2020-10-14 00:57:17,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 00:57:17,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:17,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 00:57:17,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:57:17,564 INFO L87 Difference]: Start difference. First operand 33307 states and 42037 transitions. Second operand 6 states. [2020-10-14 00:57:17,692 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:19,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:19,232 INFO L93 Difference]: Finished difference Result 59325 states and 75039 transitions. [2020-10-14 00:57:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:19,232 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 316 [2020-10-14 00:57:19,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:19,291 INFO L225 Difference]: With dead ends: 59325 [2020-10-14 00:57:19,291 INFO L226 Difference]: Without dead ends: 33310 [2020-10-14 00:57:19,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:19,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33310 states. [2020-10-14 00:57:19,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33310 to 33294. [2020-10-14 00:57:19,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33294 states. [2020-10-14 00:57:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33294 states to 33294 states and 41987 transitions. [2020-10-14 00:57:20,031 INFO L78 Accepts]: Start accepts. Automaton has 33294 states and 41987 transitions. Word has length 316 [2020-10-14 00:57:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:20,032 INFO L479 AbstractCegarLoop]: Abstraction has 33294 states and 41987 transitions. [2020-10-14 00:57:20,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 00:57:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 33294 states and 41987 transitions. [2020-10-14 00:57:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-14 00:57:20,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:20,101 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:57:20,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 00:57:20,102 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:20,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:20,102 INFO L82 PathProgramCache]: Analyzing trace with hash 373415837, now seen corresponding path program 1 times [2020-10-14 00:57:20,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:20,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243728736] [2020-10-14 00:57:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:20,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:20,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:25,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:25,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-14 00:57:25,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:57:25,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4909 [2020-10-14 00:57:25,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:25,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 00:57:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 00:57:25,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:25,228 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:25,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:25,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:25,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:25,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:25,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:25,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:57:25,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:25,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:25,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:25,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:25,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:25,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:25,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:25,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:57:25,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:25,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:57:25,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:25,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:25,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:25,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 00:57:25,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:25,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:57:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:25,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:25,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:25,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 00:57:25,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:25,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 00:57:25,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:25,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:25,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 00:57:25,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:25,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 00:57:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:25,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:25,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:25,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:57:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 00:57:25,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:25,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:57:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:25,616 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 133 proven. 33 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-14 00:57:25,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243728736] [2020-10-14 00:57:25,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:25,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:25,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708185899] [2020-10-14 00:57:25,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:25,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:25,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:25,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:25,618 INFO L87 Difference]: Start difference. First operand 33294 states and 41987 transitions. Second operand 7 states. [2020-10-14 00:57:25,759 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:57:26,328 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:57:28,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:28,871 INFO L93 Difference]: Finished difference Result 65414 states and 82365 transitions. [2020-10-14 00:57:28,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:57:28,872 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2020-10-14 00:57:28,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:28,932 INFO L225 Difference]: With dead ends: 65414 [2020-10-14 00:57:28,932 INFO L226 Difference]: Without dead ends: 35414 [2020-10-14 00:57:28,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:57:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35414 states. [2020-10-14 00:57:29,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35414 to 35346. [2020-10-14 00:57:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35346 states. [2020-10-14 00:57:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35346 states to 35346 states and 43745 transitions. [2020-10-14 00:57:29,608 INFO L78 Accepts]: Start accepts. Automaton has 35346 states and 43745 transitions. Word has length 315 [2020-10-14 00:57:29,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:29,609 INFO L479 AbstractCegarLoop]: Abstraction has 35346 states and 43745 transitions. [2020-10-14 00:57:29,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 35346 states and 43745 transitions. [2020-10-14 00:57:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-14 00:57:29,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:29,684 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:57:29,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 00:57:29,684 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:29,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:29,685 INFO L82 PathProgramCache]: Analyzing trace with hash -570578981, now seen corresponding path program 1 times [2020-10-14 00:57:29,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:29,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581411122] [2020-10-14 00:57:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:29,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:30,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:30,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 329 [2020-10-14 00:57:32,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:57:32,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2761 [2020-10-14 00:57:32,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 00:57:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:57:32,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 00:57:32,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,665 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:32,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:32,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:32,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:32,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:57:32,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:32,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:57:32,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 00:57:32,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:32,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 00:57:32,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:32,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:32,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 00:57:32,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 00:57:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:32,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 00:57:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 00:57:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 00:57:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 00:57:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:33,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:33,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:33,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:57:33,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:33,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 00:57:33,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:33,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:33,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:33,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:57:33,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:33,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 115 proven. 48 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 00:57:33,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581411122] [2020-10-14 00:57:33,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:33,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:33,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69132672] [2020-10-14 00:57:33,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:33,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:33,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:33,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:33,108 INFO L87 Difference]: Start difference. First operand 35346 states and 43745 transitions. Second operand 7 states. [2020-10-14 00:57:33,241 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:57:33,654 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 00:57:36,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:36,035 INFO L93 Difference]: Finished difference Result 71520 states and 88564 transitions. [2020-10-14 00:57:36,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:57:36,036 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 315 [2020-10-14 00:57:36,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:36,096 INFO L225 Difference]: With dead ends: 71520 [2020-10-14 00:57:36,096 INFO L226 Difference]: Without dead ends: 36612 [2020-10-14 00:57:36,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:57:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36612 states. [2020-10-14 00:57:36,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36612 to 36508. [2020-10-14 00:57:36,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36508 states. [2020-10-14 00:57:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36508 states to 36508 states and 44709 transitions. [2020-10-14 00:57:36,746 INFO L78 Accepts]: Start accepts. Automaton has 36508 states and 44709 transitions. Word has length 315 [2020-10-14 00:57:36,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:36,747 INFO L479 AbstractCegarLoop]: Abstraction has 36508 states and 44709 transitions. [2020-10-14 00:57:36,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:36,747 INFO L276 IsEmpty]: Start isEmpty. Operand 36508 states and 44709 transitions. [2020-10-14 00:57:36,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-14 00:57:36,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:36,808 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:36,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 00:57:36,809 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:36,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:36,809 INFO L82 PathProgramCache]: Analyzing trace with hash 791986729, now seen corresponding path program 1 times [2020-10-14 00:57:36,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:36,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278560579] [2020-10-14 00:57:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:36,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:37,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:37,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:38,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:41,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:41,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-14 00:57:41,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:57:41,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 00:57:41,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:41,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:41,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:41,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 00:57:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 00:57:41,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:42,039 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:42,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:42,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:42,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:42,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:42,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:42,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:57:42,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:42,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:42,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:42,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:42,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:42,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:42,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 00:57:42,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:42,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:57:42,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:42,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:42,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:42,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 00:57:42,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:42,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 00:57:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:42,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:42,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:42,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 00:57:42,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:42,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 00:57:42,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:42,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:42,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:42,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:42,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 00:57:42,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:42,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 00:57:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:42,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:42,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:42,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:57:42,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:42,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 00:57:42,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:42,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:42,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 00:57:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:42,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:42,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 00:57:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:42,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:42,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:42,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:57:42,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:42,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 00:57:42,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:42,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:42,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 00:57:42,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:42,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:42,459 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 151 proven. 66 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-14 00:57:42,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278560579] [2020-10-14 00:57:42,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:42,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:42,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006006033] [2020-10-14 00:57:42,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:42,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:42,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:42,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:42,461 INFO L87 Difference]: Start difference. First operand 36508 states and 44709 transitions. Second operand 7 states. [2020-10-14 00:57:42,594 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:44,036 INFO L93 Difference]: Finished difference Result 62335 states and 76543 transitions. [2020-10-14 00:57:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:44,037 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 331 [2020-10-14 00:57:44,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:44,078 INFO L225 Difference]: With dead ends: 62335 [2020-10-14 00:57:44,079 INFO L226 Difference]: Without dead ends: 26937 [2020-10-14 00:57:44,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:57:44,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26937 states. [2020-10-14 00:57:44,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26937 to 26903. [2020-10-14 00:57:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26903 states. [2020-10-14 00:57:44,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26903 states to 26903 states and 31985 transitions. [2020-10-14 00:57:44,624 INFO L78 Accepts]: Start accepts. Automaton has 26903 states and 31985 transitions. Word has length 331 [2020-10-14 00:57:44,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:44,624 INFO L479 AbstractCegarLoop]: Abstraction has 26903 states and 31985 transitions. [2020-10-14 00:57:44,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:44,624 INFO L276 IsEmpty]: Start isEmpty. Operand 26903 states and 31985 transitions. [2020-10-14 00:57:44,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-14 00:57:44,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:44,646 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:57:44,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 00:57:44,647 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:44,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:44,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1510567215, now seen corresponding path program 1 times [2020-10-14 00:57:44,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:44,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166726757] [2020-10-14 00:57:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:44,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:45,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:47,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:47,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-14 00:57:47,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:47,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2403 [2020-10-14 00:57:47,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:47,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:57:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:57:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 00:57:47,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:47,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:47,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:47,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:57:47,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:47,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:47,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:47,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:47,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 00:57:47,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:47,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-14 00:57:47,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:47,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:47,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 00:57:47,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:47,807 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:57:47,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166726757] [2020-10-14 00:57:47,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:57:47,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 00:57:47,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565370979] [2020-10-14 00:57:47,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:47,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:47,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:47,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:47,809 INFO L87 Difference]: Start difference. First operand 26903 states and 31985 transitions. Second operand 7 states. [2020-10-14 00:57:47,939 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:57:48,809 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 00:57:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:50,677 INFO L93 Difference]: Finished difference Result 53966 states and 64637 transitions. [2020-10-14 00:57:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:57:50,677 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 328 [2020-10-14 00:57:50,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:50,725 INFO L225 Difference]: With dead ends: 53966 [2020-10-14 00:57:50,725 INFO L226 Difference]: Without dead ends: 29912 [2020-10-14 00:57:50,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:57:50,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29912 states. [2020-10-14 00:57:51,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29912 to 29640. [2020-10-14 00:57:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29640 states. [2020-10-14 00:57:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29640 states to 29640 states and 34956 transitions. [2020-10-14 00:57:51,146 INFO L78 Accepts]: Start accepts. Automaton has 29640 states and 34956 transitions. Word has length 328 [2020-10-14 00:57:51,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:51,147 INFO L479 AbstractCegarLoop]: Abstraction has 29640 states and 34956 transitions. [2020-10-14 00:57:51,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 29640 states and 34956 transitions. [2020-10-14 00:57:51,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-14 00:57:51,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:51,171 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:57:51,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 00:57:51,171 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:51,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:51,172 INFO L82 PathProgramCache]: Analyzing trace with hash -407012063, now seen corresponding path program 1 times [2020-10-14 00:57:51,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:51,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674636844] [2020-10-14 00:57:51,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:51,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:51,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:51,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:55,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:55,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:56,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:56,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-14 00:57:56,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:57:56,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 00:57:56,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:56,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:56,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 00:57:56,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 00:57:56,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:56,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:56,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:56,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:56,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:56,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:57:56,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:56,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:56,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:56,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:56,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:56,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:56,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:57:56,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:56,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:57:56,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:56,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:56,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:56,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:56,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:57:56,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:56,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 00:57:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:56,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:56,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:56,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 00:57:56,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:56,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-14 00:57:56,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:56,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:56,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 00:57:56,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 00:57:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:56,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:56,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:56,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:57:56,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 00:57:56,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:56,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 00:57:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:56,870 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 158 proven. 45 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 00:57:56,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674636844] [2020-10-14 00:57:56,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:56,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:56,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136556613] [2020-10-14 00:57:56,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:56,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:56,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:56,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:56,872 INFO L87 Difference]: Start difference. First operand 29640 states and 34956 transitions. Second operand 7 states. [2020-10-14 00:57:56,998 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:57,758 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:57:59,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:59,359 INFO L93 Difference]: Finished difference Result 55925 states and 66332 transitions. [2020-10-14 00:57:59,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:57:59,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 349 [2020-10-14 00:57:59,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:59,408 INFO L225 Difference]: With dead ends: 55925 [2020-10-14 00:57:59,408 INFO L226 Difference]: Without dead ends: 29543 [2020-10-14 00:57:59,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:57:59,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29543 states. [2020-10-14 00:57:59,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29543 to 29431. [2020-10-14 00:57:59,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29431 states. [2020-10-14 00:57:59,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29431 states to 29431 states and 34237 transitions. [2020-10-14 00:57:59,770 INFO L78 Accepts]: Start accepts. Automaton has 29431 states and 34237 transitions. Word has length 349 [2020-10-14 00:57:59,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:59,771 INFO L479 AbstractCegarLoop]: Abstraction has 29431 states and 34237 transitions. [2020-10-14 00:57:59,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:59,771 INFO L276 IsEmpty]: Start isEmpty. Operand 29431 states and 34237 transitions. [2020-10-14 00:57:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-14 00:57:59,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:59,793 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:57:59,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 00:57:59,794 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:59,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:59,794 INFO L82 PathProgramCache]: Analyzing trace with hash -24745363, now seen corresponding path program 1 times [2020-10-14 00:57:59,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:59,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736587409] [2020-10-14 00:57:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:59,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:00,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:00,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:04,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:04,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:04,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 373 [2020-10-14 00:58:04,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:58:04,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 00:58:04,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:04,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 00:58:04,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 00:58:04,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:05,055 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:05,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:05,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:58:05,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:05,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 00:58:05,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 00:58:05,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:05,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 00:58:05,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 00:58:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 00:58:05,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 00:58:05,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:05,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 00:58:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-14 00:58:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:58:05,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 00:58:05,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-14 00:58:05,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 178 proven. 45 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-14 00:58:05,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736587409] [2020-10-14 00:58:05,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:05,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:58:05,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276248690] [2020-10-14 00:58:05,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:58:05,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:05,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:58:05,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:58:05,946 INFO L87 Difference]: Start difference. First operand 29431 states and 34237 transitions. Second operand 7 states. [2020-10-14 00:58:06,283 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:58:07,173 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 00:58:09,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:09,396 INFO L93 Difference]: Finished difference Result 60115 states and 72525 transitions. [2020-10-14 00:58:09,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:58:09,397 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 359 [2020-10-14 00:58:09,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:09,453 INFO L225 Difference]: With dead ends: 60115 [2020-10-14 00:58:09,453 INFO L226 Difference]: Without dead ends: 33940 [2020-10-14 00:58:09,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:58:09,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33940 states. [2020-10-14 00:58:09,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33940 to 33234. [2020-10-14 00:58:09,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33234 states. [2020-10-14 00:58:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33234 states to 33234 states and 38130 transitions. [2020-10-14 00:58:09,886 INFO L78 Accepts]: Start accepts. Automaton has 33234 states and 38130 transitions. Word has length 359 [2020-10-14 00:58:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:09,886 INFO L479 AbstractCegarLoop]: Abstraction has 33234 states and 38130 transitions. [2020-10-14 00:58:09,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:58:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 33234 states and 38130 transitions. [2020-10-14 00:58:09,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-10-14 00:58:09,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:09,914 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:58:09,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 00:58:09,914 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:09,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:09,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1720876282, now seen corresponding path program 1 times [2020-10-14 00:58:09,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:09,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712989138] [2020-10-14 00:58:09,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:09,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:10,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:10,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:14,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:14,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:14,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 379 [2020-10-14 00:58:14,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:58:14,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 00:58:14,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:14,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-14 00:58:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 00:58:14,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:15,164 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:15,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:15,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:15,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:15,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:15,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:15,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:58:15,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:15,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:15,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:15,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:15,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:15,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:15,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:15,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 00:58:15,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:15,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:58:15,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:15,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:15,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:15,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:15,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:15,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:15,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 00:58:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:15,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:15,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:15,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:58:15,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:15,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:58:15,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:15,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:15,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 00:58:15,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:15,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 00:58:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:15,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:15,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:15,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 00:58:15,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 00:58:15,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:15,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 00:58:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 00:58:15,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712989138] [2020-10-14 00:58:15,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:15,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:58:15,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043359011] [2020-10-14 00:58:15,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:58:15,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:15,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:58:15,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:58:15,651 INFO L87 Difference]: Start difference. First operand 33234 states and 38130 transitions. Second operand 7 states. [2020-10-14 00:58:15,846 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:58:16,225 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:58:20,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:20,742 INFO L93 Difference]: Finished difference Result 113565 states and 137832 transitions. [2020-10-14 00:58:20,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:58:20,743 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2020-10-14 00:58:20,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:20,930 INFO L225 Difference]: With dead ends: 113565 [2020-10-14 00:58:20,930 INFO L226 Difference]: Without dead ends: 82956 [2020-10-14 00:58:20,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:58:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82956 states. [2020-10-14 00:58:21,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82956 to 81526. [2020-10-14 00:58:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81526 states. [2020-10-14 00:58:22,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81526 states to 81526 states and 94625 transitions. [2020-10-14 00:58:22,105 INFO L78 Accepts]: Start accepts. Automaton has 81526 states and 94625 transitions. Word has length 365 [2020-10-14 00:58:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:22,105 INFO L479 AbstractCegarLoop]: Abstraction has 81526 states and 94625 transitions. [2020-10-14 00:58:22,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:58:22,106 INFO L276 IsEmpty]: Start isEmpty. Operand 81526 states and 94625 transitions. [2020-10-14 00:58:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-10-14 00:58:22,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:22,178 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:58:22,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 00:58:22,178 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:22,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:22,178 INFO L82 PathProgramCache]: Analyzing trace with hash -715925723, now seen corresponding path program 1 times [2020-10-14 00:58:22,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:22,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721390392] [2020-10-14 00:58:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:22,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:22,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:24,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:26,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:27,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:27,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 384 [2020-10-14 00:58:27,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:58:27,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-14 00:58:27,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:27,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:27,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:27,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 00:58:27,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 00:58:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:27,551 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:27,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:27,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:27,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:27,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:27,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:27,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:58:27,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:27,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:27,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:27,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:27,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:27,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:27,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:27,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:27,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 00:58:27,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:27,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 00:58:27,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:27,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:27,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:27,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:58:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:27,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:27,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:27,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 00:58:27,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 00:58:27,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:27,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-14 00:58:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:27,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:58:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:27,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:27,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:27,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:58:27,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:27,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 00:58:27,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:27,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 00:58:27,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 244 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-14 00:58:29,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721390392] [2020-10-14 00:58:29,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:29,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:58:29,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152111395] [2020-10-14 00:58:29,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:58:29,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:29,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:58:29,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:58:29,501 INFO L87 Difference]: Start difference. First operand 81526 states and 94625 transitions. Second operand 7 states. [2020-10-14 00:58:29,986 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-14 00:58:31,408 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 00:58:34,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:34,360 INFO L93 Difference]: Finished difference Result 167985 states and 204258 transitions. [2020-10-14 00:58:34,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 00:58:34,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 370 [2020-10-14 00:58:34,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:34,613 INFO L225 Difference]: With dead ends: 167985 [2020-10-14 00:58:34,613 INFO L226 Difference]: Without dead ends: 93961 [2020-10-14 00:58:34,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:58:34,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93961 states. [2020-10-14 00:58:36,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93961 to 91292. [2020-10-14 00:58:36,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91292 states. [2020-10-14 00:58:36,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91292 states to 91292 states and 106166 transitions. [2020-10-14 00:58:36,512 INFO L78 Accepts]: Start accepts. Automaton has 91292 states and 106166 transitions. Word has length 370 [2020-10-14 00:58:36,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:36,513 INFO L479 AbstractCegarLoop]: Abstraction has 91292 states and 106166 transitions. [2020-10-14 00:58:36,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:58:36,513 INFO L276 IsEmpty]: Start isEmpty. Operand 91292 states and 106166 transitions. [2020-10-14 00:58:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-14 00:58:36,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:36,598 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:58:36,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 00:58:36,599 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:36,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:36,599 INFO L82 PathProgramCache]: Analyzing trace with hash 946039638, now seen corresponding path program 1 times [2020-10-14 00:58:36,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:36,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466876629] [2020-10-14 00:58:36,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:36,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:36,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:40,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:40,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 388 [2020-10-14 00:58:40,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:58:40,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3625 [2020-10-14 00:58:40,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:40,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 00:58:40,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 00:58:40,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:40,472 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:40,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:40,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:40,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:40,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:40,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:40,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:40,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:40,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 00:58:40,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:58:40,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:40,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:40,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:40,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:40,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 00:58:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:40,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:40,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:40,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 00:58:40,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:40,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 00:58:40,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:40,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:40,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 00:58:40,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:40,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 00:58:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:40,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:40,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 00:58:40,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-14 00:58:40,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:40,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 00:58:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 216 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 00:58:41,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466876629] [2020-10-14 00:58:41,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:41,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:58:41,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535341186] [2020-10-14 00:58:41,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:58:41,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:41,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:58:41,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:58:41,056 INFO L87 Difference]: Start difference. First operand 91292 states and 106166 transitions. Second operand 7 states. [2020-10-14 00:58:41,277 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 00:58:41,531 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:58:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:48,186 INFO L93 Difference]: Finished difference Result 185096 states and 223456 transitions. [2020-10-14 00:58:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:58:48,187 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 374 [2020-10-14 00:58:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:48,426 INFO L225 Difference]: With dead ends: 185096 [2020-10-14 00:58:48,426 INFO L226 Difference]: Without dead ends: 95976 [2020-10-14 00:58:48,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:58:48,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95976 states. [2020-10-14 00:58:49,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95976 to 93571. [2020-10-14 00:58:49,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93571 states. [2020-10-14 00:58:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93571 states to 93571 states and 107502 transitions. [2020-10-14 00:58:49,956 INFO L78 Accepts]: Start accepts. Automaton has 93571 states and 107502 transitions. Word has length 374 [2020-10-14 00:58:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:49,957 INFO L479 AbstractCegarLoop]: Abstraction has 93571 states and 107502 transitions. [2020-10-14 00:58:49,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:58:49,957 INFO L276 IsEmpty]: Start isEmpty. Operand 93571 states and 107502 transitions. [2020-10-14 00:58:50,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2020-10-14 00:58:50,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:50,037 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:58:50,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 00:58:50,037 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:50,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:50,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1808508739, now seen corresponding path program 1 times [2020-10-14 00:58:50,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:50,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203036667] [2020-10-14 00:58:50,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:50,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:50,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:50,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:53,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:56,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:56,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-14 00:58:56,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:58:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6410 [2020-10-14 00:58:56,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:56,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:56,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-10-14 00:58:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 00:58:56,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:56,707 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:56,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:56,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:56,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:56,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:56,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:56,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:58:56,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:56,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:56,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:56,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:56,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:56,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:56,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:58:56,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:56,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:58:56,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:56,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:56,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:56,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:56,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:56,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 00:58:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:56,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:56,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:56,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 00:58:56,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:56,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 00:58:56,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:56,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:56,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:56,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:56,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 00:58:56,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:56,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:58:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:56,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:57,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:57,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:58:57,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:57,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 00:58:57,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:57,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 00:58:57,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0