/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:08:28,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:08:28,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:08:28,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:08:28,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:08:28,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:08:28,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:08:28,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:08:28,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:08:28,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:08:28,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:08:28,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:08:28,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:08:28,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:08:28,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:08:28,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:08:28,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:08:28,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:08:28,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:08:28,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:08:28,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:08:28,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:08:28,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:08:28,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:08:28,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:08:28,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:08:28,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:08:28,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:08:28,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:08:28,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:08:28,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:08:28,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:08:28,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:08:28,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:08:28,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:08:28,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:08:28,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:08:28,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:08:28,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:08:28,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:08:28,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:08:28,068 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 19:08:28,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:08:28,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:08:28,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:08:28,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:08:28,096 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:08:28,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:08:28,096 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:08:28,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:08:28,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:08:28,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:08:28,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:08:28,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:08:28,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:08:28,100 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:08:28,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:08:28,101 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:08:28,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:08:28,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:08:28,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:08:28,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:08:28,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:08:28,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:08:28,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:08:28,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:08:28,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:08:28,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:08:28,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:08:28,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:08:28,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:08:28,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:08:28,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:08:28,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:08:28,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:08:28,472 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:08:28,472 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:08:28,473 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label11.c [2020-10-14 19:08:28,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/113b3ff76/e2235e03bfa746d598d058d6722f5ada/FLAG0d024c8e0 [2020-10-14 19:08:29,109 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:08:29,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label11.c [2020-10-14 19:08:29,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/113b3ff76/e2235e03bfa746d598d058d6722f5ada/FLAG0d024c8e0 [2020-10-14 19:08:29,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/113b3ff76/e2235e03bfa746d598d058d6722f5ada [2020-10-14 19:08:29,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:08:29,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:08:29,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:08:29,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:08:29,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:08:29,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:08:29" (1/1) ... [2020-10-14 19:08:29,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50be01d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:29, skipping insertion in model container [2020-10-14 19:08:29,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:08:29" (1/1) ... [2020-10-14 19:08:29,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:08:29,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:08:30,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:08:30,291 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:08:30,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:08:30,709 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:08:30,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30 WrapperNode [2020-10-14 19:08:30,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:08:30,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:08:30,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:08:30,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:08:30,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (1/1) ... [2020-10-14 19:08:30,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (1/1) ... [2020-10-14 19:08:30,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (1/1) ... [2020-10-14 19:08:30,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (1/1) ... [2020-10-14 19:08:30,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (1/1) ... [2020-10-14 19:08:30,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (1/1) ... [2020-10-14 19:08:30,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (1/1) ... [2020-10-14 19:08:30,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:08:30,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:08:30,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:08:30,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:08:30,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (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 19:08:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:08:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:08:31,013 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:08:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:08:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:08:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:08:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:08:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:08:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:08:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:08:31,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:08:32,986 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:08:32,986 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:08:32,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:08:32 BoogieIcfgContainer [2020-10-14 19:08:32,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:08:32,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:08:32,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:08:32,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:08:32,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:08:29" (1/3) ... [2020-10-14 19:08:33,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a44bb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:08:32, skipping insertion in model container [2020-10-14 19:08:33,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:08:30" (2/3) ... [2020-10-14 19:08:33,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a44bb5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:08:33, skipping insertion in model container [2020-10-14 19:08:33,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:08:32" (3/3) ... [2020-10-14 19:08:33,002 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label11.c [2020-10-14 19:08:33,013 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:08:33,021 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:08:33,037 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:08:33,069 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:08:33,070 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:08:33,070 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:08:33,070 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:08:33,070 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:08:33,070 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:08:33,071 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:08:33,071 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:08:33,099 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-10-14 19:08:33,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-14 19:08:33,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:08:33,143 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, 1, 1, 1, 1, 1] [2020-10-14 19:08:33,144 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:08:33,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:08:33,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1907220800, now seen corresponding path program 1 times [2020-10-14 19:08:33,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:08:33,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100442366] [2020-10-14 19:08:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:08:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:33,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:34,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:37,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:37,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 19:08:37,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:08:37,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4220 [2020-10-14 19:08:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:37,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:08:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:08:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 19:08:37,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:08:38,353 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:08:38,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:08:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:38,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:38,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:08:38,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:38,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 19:08:38,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:38,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:38,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:38,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:38,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:08:38,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:38,538 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 19:08:38,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100442366] [2020-10-14 19:08:38,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:08:38,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:08:38,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845363900] [2020-10-14 19:08:38,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:08:38,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:08:38,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:08:38,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:08:38,568 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 4 states. [2020-10-14 19:08:38,768 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:08:41,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:08:41,403 INFO L93 Difference]: Finished difference Result 884 states and 1536 transitions. [2020-10-14 19:08:41,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:08:41,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2020-10-14 19:08:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:08:41,426 INFO L225 Difference]: With dead ends: 884 [2020-10-14 19:08:41,427 INFO L226 Difference]: Without dead ends: 480 [2020-10-14 19:08:41,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:08:41,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-10-14 19:08:41,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 475. [2020-10-14 19:08:41,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-10-14 19:08:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 728 transitions. [2020-10-14 19:08:41,610 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 728 transitions. Word has length 199 [2020-10-14 19:08:41,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:08:41,616 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 728 transitions. [2020-10-14 19:08:41,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:08:41,616 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 728 transitions. [2020-10-14 19:08:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-14 19:08:41,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:08:41,627 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:08:41,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:08:41,628 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:08:41,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:08:41,628 INFO L82 PathProgramCache]: Analyzing trace with hash 267319107, now seen corresponding path program 1 times [2020-10-14 19:08:41,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:08:41,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303246068] [2020-10-14 19:08:41,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:08:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:41,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:42,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:42,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:44,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:44,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-14 19:08:44,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:08:44,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2646 [2020-10-14 19:08:44,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:44,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:44,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:08:44,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 19:08:44,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-14 19:08:44,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:44,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:08:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:44,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:44,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:44,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:08:44,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:44,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:08:44,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:44,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:44,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:44,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:44,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:08:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:44,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:44,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:44,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 19:08:44,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:44,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 19:08:44,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:44,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:44,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 19:08:44,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:08:45,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303246068] [2020-10-14 19:08:45,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:08:45,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:08:45,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576769275] [2020-10-14 19:08:45,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:08:45,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:08:45,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:08:45,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:08:45,461 INFO L87 Difference]: Start difference. First operand 475 states and 728 transitions. Second operand 5 states. [2020-10-14 19:08:45,829 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-14 19:08:48,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:08:48,282 INFO L93 Difference]: Finished difference Result 1137 states and 1792 transitions. [2020-10-14 19:08:48,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:08:48,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2020-10-14 19:08:48,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:08:48,297 INFO L225 Difference]: With dead ends: 1137 [2020-10-14 19:08:48,297 INFO L226 Difference]: Without dead ends: 618 [2020-10-14 19:08:48,300 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 19:08:48,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-10-14 19:08:48,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 613. [2020-10-14 19:08:48,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-10-14 19:08:48,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 872 transitions. [2020-10-14 19:08:48,336 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 872 transitions. Word has length 208 [2020-10-14 19:08:48,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:08:48,337 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 872 transitions. [2020-10-14 19:08:48,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:08:48,337 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 872 transitions. [2020-10-14 19:08:48,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-14 19:08:48,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:08:48,341 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, 1, 1, 1, 1, 1] [2020-10-14 19:08:48,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:08:48,341 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:08:48,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:08:48,342 INFO L82 PathProgramCache]: Analyzing trace with hash 428420692, now seen corresponding path program 1 times [2020-10-14 19:08:48,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:08:48,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568790425] [2020-10-14 19:08:48,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:08:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:48,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:48,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:50,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:51,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:51,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-14 19:08:51,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:08:51,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3545 [2020-10-14 19:08:51,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:51,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:51,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:08:51,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 19:08:51,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 19:08:51,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:52,658 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:08:52,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:08:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:52,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:52,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:52,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:08:52,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:52,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:08:52,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:52,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:52,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:52,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:52,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:52,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:52,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:08:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:52,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:52,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:52,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 19:08:52,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:52,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 19:08:52,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:52,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:52,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:52,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:52,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 19:08:52,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:53,760 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 19:08:53,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568790425] [2020-10-14 19:08:53,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:08:53,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:08:53,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623742935] [2020-10-14 19:08:53,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:08:53,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:08:53,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:08:53,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:08:53,764 INFO L87 Difference]: Start difference. First operand 613 states and 872 transitions. Second operand 5 states. [2020-10-14 19:08:54,214 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-14 19:08:56,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:08:56,697 INFO L93 Difference]: Finished difference Result 1402 states and 2069 transitions. [2020-10-14 19:08:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:08:56,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2020-10-14 19:08:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:08:56,704 INFO L225 Difference]: With dead ends: 1402 [2020-10-14 19:08:56,705 INFO L226 Difference]: Without dead ends: 617 [2020-10-14 19:08:56,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:08:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-14 19:08:56,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 613. [2020-10-14 19:08:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-10-14 19:08:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 832 transitions. [2020-10-14 19:08:56,735 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 832 transitions. Word has length 211 [2020-10-14 19:08:56,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:08:56,740 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 832 transitions. [2020-10-14 19:08:56,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:08:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 832 transitions. [2020-10-14 19:08:56,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-14 19:08:56,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:08:56,745 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:08:56,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:08:56,745 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:08:56,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:08:56,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1545323776, now seen corresponding path program 1 times [2020-10-14 19:08:56,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:08:56,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437297025] [2020-10-14 19:08:56,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:08:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:56,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:57,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:58,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:59,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:59,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-14 19:08:59,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:08:59,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2451 [2020-10-14 19:08:59,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:59,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:08:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 19:08:59,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 19:08:59,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:59,498 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:08:59,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:08:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:59,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:59,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:59,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:08:59,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:59,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:08:59,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:59,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:08:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:08:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:59,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:08:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:08:59,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:08:59,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:08:59,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 19:08:59,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:08:59,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 19:08:59,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:08:59,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:08:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:08:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:08:59,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 19:08:59,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:08:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:08:59,739 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437297025] [2020-10-14 19:08:59,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:08:59,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:08:59,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391949408] [2020-10-14 19:08:59,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:08:59,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:08:59,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:08:59,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:08:59,742 INFO L87 Difference]: Start difference. First operand 613 states and 832 transitions. Second operand 5 states. [2020-10-14 19:09:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:09:02,370 INFO L93 Difference]: Finished difference Result 1670 states and 2342 transitions. [2020-10-14 19:09:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:09:02,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2020-10-14 19:09:02,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:09:02,378 INFO L225 Difference]: With dead ends: 1670 [2020-10-14 19:09:02,378 INFO L226 Difference]: Without dead ends: 1063 [2020-10-14 19:09:02,380 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 19:09:02,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-10-14 19:09:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1041. [2020-10-14 19:09:02,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-10-14 19:09:02,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1445 transitions. [2020-10-14 19:09:02,414 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1445 transitions. Word has length 217 [2020-10-14 19:09:02,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:09:02,415 INFO L479 AbstractCegarLoop]: Abstraction has 1041 states and 1445 transitions. [2020-10-14 19:09:02,415 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:09:02,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1445 transitions. [2020-10-14 19:09:02,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-14 19:09:02,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:09:02,421 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:09:02,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:09:02,421 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:09:02,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:09:02,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1941887351, now seen corresponding path program 1 times [2020-10-14 19:09:02,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:09:02,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848174343] [2020-10-14 19:09:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:09:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:02,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:02,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:04,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:05,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:05,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-10-14 19:09:05,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:09:05,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2568 [2020-10-14 19:09:05,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:05,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:09:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 19:09:05,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 19:09:05,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:09:05,299 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:09:05,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:09:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:05,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:05,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:05,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:09:05,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:05,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:09:05,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:05,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:09:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:09:05,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:09:05,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:09:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:05,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:05,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:05,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:09:05,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:05,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 19:09:05,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:05,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:05,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:09:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:09:05,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-14 19:09:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:09:05,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848174343] [2020-10-14 19:09:05,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:09:05,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:09:05,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673530953] [2020-10-14 19:09:05,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:09:05,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:09:05,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:09:05,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:09:05,572 INFO L87 Difference]: Start difference. First operand 1041 states and 1445 transitions. Second operand 5 states. [2020-10-14 19:09:05,787 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:09:08,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:09:08,150 INFO L93 Difference]: Finished difference Result 2919 states and 4166 transitions. [2020-10-14 19:09:08,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:09:08,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 218 [2020-10-14 19:09:08,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:09:08,165 INFO L225 Difference]: With dead ends: 2919 [2020-10-14 19:09:08,165 INFO L226 Difference]: Without dead ends: 1884 [2020-10-14 19:09:08,168 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 19:09:08,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2020-10-14 19:09:08,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1877. [2020-10-14 19:09:08,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1877 states. [2020-10-14 19:09:08,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2630 transitions. [2020-10-14 19:09:08,231 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2630 transitions. Word has length 218 [2020-10-14 19:09:08,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:09:08,232 INFO L479 AbstractCegarLoop]: Abstraction has 1877 states and 2630 transitions. [2020-10-14 19:09:08,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:09:08,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2630 transitions. [2020-10-14 19:09:08,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-14 19:09:08,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:09:08,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:08,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:09:08,239 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:09:08,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:09:08,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1496382291, now seen corresponding path program 1 times [2020-10-14 19:09:08,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:09:08,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933642148] [2020-10-14 19:09:08,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:09:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:08,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:09,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:09,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:11,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:11,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-14 19:09:11,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:09:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3221 [2020-10-14 19:09:11,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:11,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:09:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-14 19:09:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 19:09:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:11,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:09:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:11,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:11,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:11,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:09:11,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:11,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:09:11,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:11,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:09:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:11,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:09:11,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:09:11,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:09:11,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:11,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:11,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:11,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 19:09:11,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:11,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 19:09:11,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 19:09:11,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:09:11,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933642148] [2020-10-14 19:09:11,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:09:11,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:09:11,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822026568] [2020-10-14 19:09:11,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:09:11,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:09:11,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:09:11,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:09:11,961 INFO L87 Difference]: Start difference. First operand 1877 states and 2630 transitions. Second operand 5 states. [2020-10-14 19:09:14,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:09:14,148 INFO L93 Difference]: Finished difference Result 5447 states and 7868 transitions. [2020-10-14 19:09:14,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:09:14,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 223 [2020-10-14 19:09:14,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:09:14,173 INFO L225 Difference]: With dead ends: 5447 [2020-10-14 19:09:14,173 INFO L226 Difference]: Without dead ends: 3576 [2020-10-14 19:09:14,180 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 19:09:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2020-10-14 19:09:14,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3565. [2020-10-14 19:09:14,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3565 states. [2020-10-14 19:09:14,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4914 transitions. [2020-10-14 19:09:14,312 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4914 transitions. Word has length 223 [2020-10-14 19:09:14,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:09:14,313 INFO L479 AbstractCegarLoop]: Abstraction has 3565 states and 4914 transitions. [2020-10-14 19:09:14,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:09:14,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4914 transitions. [2020-10-14 19:09:14,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-14 19:09:14,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:09:14,326 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:09:14,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:09:14,327 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:09:14,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:09:14,327 INFO L82 PathProgramCache]: Analyzing trace with hash 898517778, now seen corresponding path program 1 times [2020-10-14 19:09:14,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:09:14,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152948036] [2020-10-14 19:09:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:09:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:14,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:14,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:16,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:16,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:19,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:19,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-14 19:09:19,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:09:19,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4926 [2020-10-14 19:09:19,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:19,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:19,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:09:19,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-14 19:09:19,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 19:09:19,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:19,475 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:09:19,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:09:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:19,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:19,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:19,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:09:19,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:09:19,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:19,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:19,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:09:19,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:19,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:09:19,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:19,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:09:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:19,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:19,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:19,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:09:19,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:19,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:09:19,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:19,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:09:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:19,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:09:19,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:19,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 19:09:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:19,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:19,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:19,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 19:09:19,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 19:09:19,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:19,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:09:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 19:09:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:19,696 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 19:09:19,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152948036] [2020-10-14 19:09:19,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:09:19,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:09:19,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146385804] [2020-10-14 19:09:19,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:09:19,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:09:19,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:09:19,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:09:19,698 INFO L87 Difference]: Start difference. First operand 3565 states and 4914 transitions. Second operand 5 states. [2020-10-14 19:09:19,935 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:09:22,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:09:22,138 INFO L93 Difference]: Finished difference Result 9644 states and 13609 transitions. [2020-10-14 19:09:22,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:09:22,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2020-10-14 19:09:22,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:09:22,172 INFO L225 Difference]: With dead ends: 9644 [2020-10-14 19:09:22,172 INFO L226 Difference]: Without dead ends: 6085 [2020-10-14 19:09:22,183 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 19:09:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6085 states. [2020-10-14 19:09:22,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6085 to 6074. [2020-10-14 19:09:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6074 states. [2020-10-14 19:09:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 8292 transitions. [2020-10-14 19:09:22,441 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 8292 transitions. Word has length 246 [2020-10-14 19:09:22,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:09:22,442 INFO L479 AbstractCegarLoop]: Abstraction has 6074 states and 8292 transitions. [2020-10-14 19:09:22,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:09:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 8292 transitions. [2020-10-14 19:09:22,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-14 19:09:22,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:09:22,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:22,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:09:22,463 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:09:22,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:09:22,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1914824806, now seen corresponding path program 1 times [2020-10-14 19:09:22,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:09:22,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95338400] [2020-10-14 19:09:22,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:09:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:22,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:22,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:23,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:24,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:27,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:27,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-14 19:09:27,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:09:27,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4614 [2020-10-14 19:09:27,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:27,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:27,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:09:27,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-14 19:09:27,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 19:09:27,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:27,308 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:09:27,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:09:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:27,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:27,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:09:27,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:09:27,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:27,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:09:27,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:09:27,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:27,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:09:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:27,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:27,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:27,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:09:27,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:27,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:09:27,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:27,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:09:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:27,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:09:27,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 19:09:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:27,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:27,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:27,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 19:09:27,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:27,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 19:09:27,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:27,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:27,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:09:27,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:27,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 19:09:27,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:27,530 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 19:09:27,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95338400] [2020-10-14 19:09:27,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:09:27,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:09:27,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927164563] [2020-10-14 19:09:27,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:09:27,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:09:27,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:09:27,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:09:27,532 INFO L87 Difference]: Start difference. First operand 6074 states and 8292 transitions. Second operand 5 states. [2020-10-14 19:09:27,724 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:09:30,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:09:30,104 INFO L93 Difference]: Finished difference Result 16755 states and 23730 transitions. [2020-10-14 19:09:30,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:09:30,105 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 250 [2020-10-14 19:09:30,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:09:30,154 INFO L225 Difference]: With dead ends: 16755 [2020-10-14 19:09:30,154 INFO L226 Difference]: Without dead ends: 10687 [2020-10-14 19:09:30,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 19:09:30,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10687 states. [2020-10-14 19:09:30,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10687 to 10680. [2020-10-14 19:09:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10680 states. [2020-10-14 19:09:30,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10680 states to 10680 states and 14743 transitions. [2020-10-14 19:09:30,547 INFO L78 Accepts]: Start accepts. Automaton has 10680 states and 14743 transitions. Word has length 250 [2020-10-14 19:09:30,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:09:30,548 INFO L479 AbstractCegarLoop]: Abstraction has 10680 states and 14743 transitions. [2020-10-14 19:09:30,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:09:30,548 INFO L276 IsEmpty]: Start isEmpty. Operand 10680 states and 14743 transitions. [2020-10-14 19:09:30,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-10-14 19:09:30,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:09:30,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:30,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:09:30,586 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:09:30,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:09:30,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1300494180, now seen corresponding path program 1 times [2020-10-14 19:09:30,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:09:30,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915412079] [2020-10-14 19:09:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:09:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:30,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:30,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:31,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:31,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:33,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:35,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:35,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:35,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-14 19:09:35,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 19:09:35,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 19:09:35,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:35,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:09:35,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 19:09:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 198 [2020-10-14 19:09:35,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:35,831 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:09:35,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:09:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:35,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:35,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:35,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:09:35,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:35,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:09:35,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:35,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:35,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:09:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:35,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:09:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:35,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:09:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:35,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:35,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:35,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:09:35,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:35,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:09:35,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:35,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:09:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:09:35,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:35,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 19:09:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:35,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:36,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:36,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-14 19:09:36,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:36,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 19:09:36,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:36,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:36,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:09:36,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:36,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-14 19:09:36,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:09:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 19:09:36,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915412079] [2020-10-14 19:09:36,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:09:36,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:09:36,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57972506] [2020-10-14 19:09:36,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:09:36,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:09:36,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:09:36,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:09:36,142 INFO L87 Difference]: Start difference. First operand 10680 states and 14743 transitions. Second operand 5 states. [2020-10-14 19:09:36,269 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:09:38,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:09:38,284 INFO L93 Difference]: Finished difference Result 30557 states and 42816 transitions. [2020-10-14 19:09:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:09:38,284 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 255 [2020-10-14 19:09:38,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:09:38,370 INFO L225 Difference]: With dead ends: 30557 [2020-10-14 19:09:38,370 INFO L226 Difference]: Without dead ends: 19883 [2020-10-14 19:09:38,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 19:09:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19883 states. [2020-10-14 19:09:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19883 to 19876. [2020-10-14 19:09:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19876 states. [2020-10-14 19:09:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19876 states to 19876 states and 27896 transitions. [2020-10-14 19:09:39,012 INFO L78 Accepts]: Start accepts. Automaton has 19876 states and 27896 transitions. Word has length 255 [2020-10-14 19:09:39,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:09:39,013 INFO L479 AbstractCegarLoop]: Abstraction has 19876 states and 27896 transitions. [2020-10-14 19:09:39,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:09:39,013 INFO L276 IsEmpty]: Start isEmpty. Operand 19876 states and 27896 transitions. [2020-10-14 19:09:39,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-10-14 19:09:39,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:09:39,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:39,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 19:09:39,085 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:09:39,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:09:39,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1120363437, now seen corresponding path program 1 times [2020-10-14 19:09:39,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:09:39,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168306520] [2020-10-14 19:09:39,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:09:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:39,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:39,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:39,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-14 19:09:39,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:39,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-10-14 19:09:39,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:39,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:09:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:09:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 19:09:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:40,145 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:09:40,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:09:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:40,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:40,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:40,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:09:40,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:40,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 19:09:40,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:40,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:09:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:09:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:09:40,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:09:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:40,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:40,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:40,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 19:09:40,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:40,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-14 19:09:40,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:40,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:40,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:09:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:09:40,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 19:09:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:09:40,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168306520] [2020-10-14 19:09:40,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:09:40,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 19:09:40,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540778669] [2020-10-14 19:09:40,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:09:40,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:09:40,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:09:40,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:09:40,577 INFO L87 Difference]: Start difference. First operand 19876 states and 27896 transitions. Second operand 7 states. [2020-10-14 19:09:40,713 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:09:41,069 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:09:43,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:09:43,730 INFO L93 Difference]: Finished difference Result 48172 states and 81323 transitions. [2020-10-14 19:09:43,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:09:43,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 270 [2020-10-14 19:09:43,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:09:43,926 INFO L225 Difference]: With dead ends: 48172 [2020-10-14 19:09:43,926 INFO L226 Difference]: Without dead ends: 28302 [2020-10-14 19:09:44,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:09:44,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28302 states. [2020-10-14 19:09:45,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28302 to 27178. [2020-10-14 19:09:45,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27178 states. [2020-10-14 19:09:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27178 states to 27178 states and 36399 transitions. [2020-10-14 19:09:45,087 INFO L78 Accepts]: Start accepts. Automaton has 27178 states and 36399 transitions. Word has length 270 [2020-10-14 19:09:45,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:09:45,088 INFO L479 AbstractCegarLoop]: Abstraction has 27178 states and 36399 transitions. [2020-10-14 19:09:45,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:09:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 27178 states and 36399 transitions. [2020-10-14 19:09:45,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-10-14 19:09:45,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:09:45,161 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2020-10-14 19:09:45,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 19:09:45,161 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:09:45,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:09:45,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1188818987, now seen corresponding path program 1 times [2020-10-14 19:09:45,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:09:45,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153380046] [2020-10-14 19:09:45,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:09:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:45,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:45,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:48,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:49,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:49,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 19:09:49,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:09:49,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4464 [2020-10-14 19:09:49,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:49,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 19:09:49,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:09:49,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-14 19:09:49,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:50,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:09:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:50,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:50,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:50,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:09:50,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:50,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:09:50,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:50,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:09:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:50,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:09:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:50,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:09:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:50,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:50,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:50,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:50,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 19:09:50,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:09:50,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 19:09:50,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:50,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:09:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:09:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 19:09:50,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:09:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 19:09:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:50,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:50,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:09:50,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 19:09:50,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:09:50,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 19:09:50,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:09:50,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:09:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 19:09:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:09:50,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 19:09:50,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:09:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 56 proven. 62 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 19:09:51,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153380046] [2020-10-14 19:09:51,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:09:51,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:09:51,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832617613] [2020-10-14 19:09:51,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:09:51,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:09:51,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:09:51,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:09:51,442 INFO L87 Difference]: Start difference. First operand 27178 states and 36399 transitions. Second operand 8 states. [2020-10-14 19:09:51,581 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 19:09:52,328 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-10-14 19:09:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:09:56,609 INFO L93 Difference]: Finished difference Result 76412 states and 108467 transitions. [2020-10-14 19:09:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:09:56,610 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 292 [2020-10-14 19:09:56,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:09:56,810 INFO L225 Difference]: With dead ends: 76412 [2020-10-14 19:09:56,810 INFO L226 Difference]: Without dead ends: 49196 [2020-10-14 19:09:56,873 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-10-14 19:09:57,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49196 states. [2020-10-14 19:09:58,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49196 to 48606. [2020-10-14 19:09:58,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48606 states. [2020-10-14 19:09:58,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48606 states to 48606 states and 64565 transitions. [2020-10-14 19:09:58,199 INFO L78 Accepts]: Start accepts. Automaton has 48606 states and 64565 transitions. Word has length 292 [2020-10-14 19:09:58,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:09:58,200 INFO L479 AbstractCegarLoop]: Abstraction has 48606 states and 64565 transitions. [2020-10-14 19:09:58,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:09:58,200 INFO L276 IsEmpty]: Start isEmpty. Operand 48606 states and 64565 transitions. [2020-10-14 19:09:58,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-14 19:09:58,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:09:58,282 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:09:58,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 19:09:58,283 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:09:58,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:09:58,283 INFO L82 PathProgramCache]: Analyzing trace with hash -474502030, now seen corresponding path program 1 times [2020-10-14 19:09:58,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:09:58,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208795982] [2020-10-14 19:09:58,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:09:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:09:58,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:09:58,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:01,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:01,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 19:10:01,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:10:01,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3658 [2020-10-14 19:10:01,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:01,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:01,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:01,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 19:10:01,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 19:10:01,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:02,170 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:10:02,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:10:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:02,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:02,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:02,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:10:02,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:02,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:10:02,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:02,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:02,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:10:02,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:10:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:10:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:10:02,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:10:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:02,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:02,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:02,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 19:10:02,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:02,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 19:10:02,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:02,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:10:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:10:02,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:10:02,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:02,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 19:10:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:02,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:02,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:02,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 19:10:02,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:02,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 19:10:02,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:02,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:10:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:10:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 19:10:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:10:02,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 19:10:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:02,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:02,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:02,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 19:10:02,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:02,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 19:10:02,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:02,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:02,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 19:10:02,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-14 19:10:02,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208795982] [2020-10-14 19:10:02,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:10:02,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:10:02,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441297319] [2020-10-14 19:10:02,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:10:02,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:10:02,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:10:02,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:10:02,616 INFO L87 Difference]: Start difference. First operand 48606 states and 64565 transitions. Second operand 7 states. [2020-10-14 19:10:02,921 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:10:03,554 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:10:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:10:06,135 INFO L93 Difference]: Finished difference Result 94840 states and 126880 transitions. [2020-10-14 19:10:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:10:06,136 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 316 [2020-10-14 19:10:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:10:06,242 INFO L225 Difference]: With dead ends: 94840 [2020-10-14 19:10:06,242 INFO L226 Difference]: Without dead ends: 46240 [2020-10-14 19:10:06,323 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 19:10:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46240 states. [2020-10-14 19:10:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46240 to 46134. [2020-10-14 19:10:07,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46134 states. [2020-10-14 19:10:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46134 states to 46134 states and 56776 transitions. [2020-10-14 19:10:07,354 INFO L78 Accepts]: Start accepts. Automaton has 46134 states and 56776 transitions. Word has length 316 [2020-10-14 19:10:07,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:10:07,355 INFO L479 AbstractCegarLoop]: Abstraction has 46134 states and 56776 transitions. [2020-10-14 19:10:07,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:10:07,356 INFO L276 IsEmpty]: Start isEmpty. Operand 46134 states and 56776 transitions. [2020-10-14 19:10:07,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-14 19:10:07,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:10:07,430 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 19:10:07,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 19:10:07,431 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:10:07,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:10:07,433 INFO L82 PathProgramCache]: Analyzing trace with hash -211089011, now seen corresponding path program 1 times [2020-10-14 19:10:07,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:10:07,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468138692] [2020-10-14 19:10:07,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:10:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:07,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:07,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:10,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:12,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:12,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 355 [2020-10-14 19:10:12,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:10:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4879 [2020-10-14 19:10:12,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:12,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:10:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:10:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 19:10:12,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:12,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:10:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:12,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:12,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:10:12,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:12,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:10:12,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:12,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:12,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:10:12,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:10:12,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:10:12,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:12,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:10:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:12,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:12,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:12,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 19:10:12,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 19:10:12,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:12,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:12,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:12,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:12,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 19:10:12,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:12,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 19:10:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:12,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:13,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:13,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 19:10:13,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:13,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-14 19:10:13,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:13,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:13,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:13,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:13,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 19:10:13,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:13,434 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 164 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 19:10:13,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468138692] [2020-10-14 19:10:13,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:10:13,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:10:13,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33338284] [2020-10-14 19:10:13,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:10:13,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:10:13,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:10:13,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:10:13,436 INFO L87 Difference]: Start difference. First operand 46134 states and 56776 transitions. Second operand 8 states. [2020-10-14 19:10:13,567 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:10:15,168 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:10:16,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:10:16,061 INFO L93 Difference]: Finished difference Result 90026 states and 113782 transitions. [2020-10-14 19:10:16,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:10:16,061 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 343 [2020-10-14 19:10:16,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:10:16,171 INFO L225 Difference]: With dead ends: 90026 [2020-10-14 19:10:16,172 INFO L226 Difference]: Without dead ends: 43898 [2020-10-14 19:10:16,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:10:16,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43898 states. [2020-10-14 19:10:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43898 to 39083. [2020-10-14 19:10:17,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39083 states. [2020-10-14 19:10:17,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39083 states to 39083 states and 46786 transitions. [2020-10-14 19:10:17,179 INFO L78 Accepts]: Start accepts. Automaton has 39083 states and 46786 transitions. Word has length 343 [2020-10-14 19:10:17,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:10:17,179 INFO L479 AbstractCegarLoop]: Abstraction has 39083 states and 46786 transitions. [2020-10-14 19:10:17,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:10:17,179 INFO L276 IsEmpty]: Start isEmpty. Operand 39083 states and 46786 transitions. [2020-10-14 19:10:17,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-14 19:10:17,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:10:17,224 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 19:10:17,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 19:10:17,224 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:10:17,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:10:17,224 INFO L82 PathProgramCache]: Analyzing trace with hash 531278561, now seen corresponding path program 1 times [2020-10-14 19:10:17,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:10:17,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023341641] [2020-10-14 19:10:17,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:10:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:17,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:20,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:20,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 358 [2020-10-14 19:10:20,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:10:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3486 [2020-10-14 19:10:20,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:20,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:10:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:10:20,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 19:10:20,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:20,955 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:10:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:10:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:20,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:20,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:20,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:10:20,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:20,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:10:20,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:20,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:10:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:10:20,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:10:20,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:21,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:10:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:21,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:21,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:21,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 19:10:21,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:21,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 19:10:21,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:21,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:21,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 19:10:21,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:21,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 19:10:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:21,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:21,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:21,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 19:10:21,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:21,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 19:10:21,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:21,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 19:10:21,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-14 19:10:21,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023341641] [2020-10-14 19:10:21,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:10:21,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:10:21,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882779335] [2020-10-14 19:10:21,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:10:21,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:10:21,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:10:21,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:10:21,498 INFO L87 Difference]: Start difference. First operand 39083 states and 46786 transitions. Second operand 7 states. [2020-10-14 19:10:21,646 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 19:10:22,989 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 19:10:24,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:10:24,767 INFO L93 Difference]: Finished difference Result 83592 states and 102228 transitions. [2020-10-14 19:10:24,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:10:24,768 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 346 [2020-10-14 19:10:24,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:10:24,870 INFO L225 Difference]: With dead ends: 83592 [2020-10-14 19:10:24,870 INFO L226 Difference]: Without dead ends: 44515 [2020-10-14 19:10:24,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 2 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 19:10:24,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44515 states. [2020-10-14 19:10:25,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44515 to 44012. [2020-10-14 19:10:25,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44012 states. [2020-10-14 19:10:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44012 states to 44012 states and 52055 transitions. [2020-10-14 19:10:25,860 INFO L78 Accepts]: Start accepts. Automaton has 44012 states and 52055 transitions. Word has length 346 [2020-10-14 19:10:25,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:10:25,861 INFO L479 AbstractCegarLoop]: Abstraction has 44012 states and 52055 transitions. [2020-10-14 19:10:25,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:10:25,861 INFO L276 IsEmpty]: Start isEmpty. Operand 44012 states and 52055 transitions. [2020-10-14 19:10:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-14 19:10:25,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:10:25,916 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:10:25,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 19:10:25,916 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:10:25,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:10:25,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1142751560, now seen corresponding path program 1 times [2020-10-14 19:10:25,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:10:25,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460025911] [2020-10-14 19:10:25,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:10:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:26,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:26,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:26,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:27,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:30,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:30,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-14 19:10:30,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:10:30,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 19:10:30,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:30,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 19:10:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:10:30,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-14 19:10:30,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:31,181 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:10:31,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:10:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:31,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:31,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:31,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:10:31,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:31,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:10:31,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:31,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:31,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:10:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:10:31,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:10:31,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:31,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:10:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:31,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:31,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:31,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 19:10:31,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:31,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 19:10:31,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:31,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 19:10:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:31,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 19:10:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:31,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:31,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:31,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 19:10:31,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:10:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-14 19:10:31,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:31,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 19:10:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:10:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 19:10:31,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:10:31,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-14 19:10:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:31,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:32,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:32,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 19:10:32,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:32,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-14 19:10:32,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:32,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:32,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:32,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-14 19:10:32,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:10:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 209 proven. 32 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-14 19:10:32,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460025911] [2020-10-14 19:10:32,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:10:32,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 19:10:32,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454936006] [2020-10-14 19:10:32,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 19:10:32,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:10:32,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 19:10:32,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 19:10:32,272 INFO L87 Difference]: Start difference. First operand 44012 states and 52055 transitions. Second operand 10 states. [2020-10-14 19:10:32,418 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 19:10:32,780 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 19:10:33,388 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:10:33,667 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 133 [2020-10-14 19:10:34,482 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-14 19:10:38,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:10:38,484 INFO L93 Difference]: Finished difference Result 137865 states and 162797 transitions. [2020-10-14 19:10:38,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 19:10:38,485 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 349 [2020-10-14 19:10:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:10:38,753 INFO L225 Difference]: With dead ends: 137865 [2020-10-14 19:10:38,753 INFO L226 Difference]: Without dead ends: 93859 [2020-10-14 19:10:38,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2020-10-14 19:10:38,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93859 states. [2020-10-14 19:10:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93859 to 90195. [2020-10-14 19:10:40,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90195 states. [2020-10-14 19:10:40,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90195 states to 90195 states and 106503 transitions. [2020-10-14 19:10:40,450 INFO L78 Accepts]: Start accepts. Automaton has 90195 states and 106503 transitions. Word has length 349 [2020-10-14 19:10:40,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:10:40,450 INFO L479 AbstractCegarLoop]: Abstraction has 90195 states and 106503 transitions. [2020-10-14 19:10:40,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 19:10:40,450 INFO L276 IsEmpty]: Start isEmpty. Operand 90195 states and 106503 transitions. [2020-10-14 19:10:40,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-14 19:10:40,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:10:40,517 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 19:10:40,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 19:10:40,517 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:10:40,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:10:40,518 INFO L82 PathProgramCache]: Analyzing trace with hash 962066906, now seen corresponding path program 1 times [2020-10-14 19:10:40,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:10:40,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866436290] [2020-10-14 19:10:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:10:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:40,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:40,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:43,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:45,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:45,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 371 [2020-10-14 19:10:45,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:10:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 19:10:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:45,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-14 19:10:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:10:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 365 [2020-10-14 19:10:45,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:45,913 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:10:45,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:10:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:45,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:45,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:45,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:10:45,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:45,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:10:45,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:45,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:10:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:10:45,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:10:45,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:46,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:10:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:46,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:46,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:10:46,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 19:10:46,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:46,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 19:10:46,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:46,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:10:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:46,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:46,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:46,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 19:10:46,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:46,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 19:10:46,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:46,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:10:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:46,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 19:10:46,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:46,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 19:10:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:10:46,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:10:46,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:10:46,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 19:10:46,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:10:46,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 19:10:46,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:10:46,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:10:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 19:10:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:10:46,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 19:10:46,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:10:46,612 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-14 19:10:46,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866436290] [2020-10-14 19:10:46,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:10:46,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 19:10:46,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280396417] [2020-10-14 19:10:46,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 19:10:46,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:10:46,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 19:10:46,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 19:10:46,614 INFO L87 Difference]: Start difference. First operand 90195 states and 106503 transitions. Second operand 10 states. [2020-10-14 19:10:46,778 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 19:10:47,055 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:10:47,503 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 19:10:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:10:53,487 INFO L93 Difference]: Finished difference Result 304458 states and 372996 transitions. [2020-10-14 19:10:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 19:10:53,487 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 357 [2020-10-14 19:10:53,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:10:54,085 INFO L225 Difference]: With dead ends: 304458 [2020-10-14 19:10:54,085 INFO L226 Difference]: Without dead ends: 214269 [2020-10-14 19:10:54,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2020-10-14 19:10:54,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214269 states. [2020-10-14 19:11:00,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214269 to 183385. [2020-10-14 19:11:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183385 states. [2020-10-14 19:11:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183385 states to 183385 states and 217562 transitions. [2020-10-14 19:11:00,520 INFO L78 Accepts]: Start accepts. Automaton has 183385 states and 217562 transitions. Word has length 357 [2020-10-14 19:11:00,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:11:00,520 INFO L479 AbstractCegarLoop]: Abstraction has 183385 states and 217562 transitions. [2020-10-14 19:11:00,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 19:11:00,521 INFO L276 IsEmpty]: Start isEmpty. Operand 183385 states and 217562 transitions. [2020-10-14 19:11:00,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-10-14 19:11:00,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:11:00,651 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:11:00,652 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 19:11:00,652 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:11:00,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:11:00,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1251071521, now seen corresponding path program 1 times [2020-10-14 19:11:00,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:11:00,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365752047] [2020-10-14 19:11:00,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:11:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:00,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:00,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:00,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:08,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:08,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 400 [2020-10-14 19:11:08,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:11:08,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7380 [2020-10-14 19:11:08,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:08,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 19:11:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:11:08,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 19:11:08,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:08,278 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:11:08,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:11:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:08,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:11:08,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:08,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:11:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:08,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:08,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:08,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 19:11:08,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:08,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 19:11:08,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:08,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:11:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:11:08,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 19:11:08,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:08,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 19:11:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:08,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:08,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:08,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 19:11:08,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 19:11:08,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:08,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:11:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:11:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 19:11:08,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:08,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 19:11:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:08,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:08,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:08,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 19:11:08,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:08,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 19:11:08,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:08,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:11:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 19:11:08,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:11:08,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 183 proven. 79 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-14 19:11:08,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365752047] [2020-10-14 19:11:08,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:11:08,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:11:08,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665901534] [2020-10-14 19:11:08,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:11:08,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:11:08,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:11:08,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:11:08,874 INFO L87 Difference]: Start difference. First operand 183385 states and 217562 transitions. Second operand 7 states. [2020-10-14 19:11:09,014 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 19:11:09,905 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 19:11:13,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:11:13,683 INFO L93 Difference]: Finished difference Result 389926 states and 463392 transitions. [2020-10-14 19:11:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:11:13,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 386 [2020-10-14 19:11:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:11:14,125 INFO L225 Difference]: With dead ends: 389926 [2020-10-14 19:11:14,125 INFO L226 Difference]: Without dead ends: 206547 [2020-10-14 19:11:14,276 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 19:11:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206547 states. [2020-10-14 19:11:17,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206547 to 205258. [2020-10-14 19:11:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205258 states. [2020-10-14 19:11:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205258 states to 205258 states and 238517 transitions. [2020-10-14 19:11:17,591 INFO L78 Accepts]: Start accepts. Automaton has 205258 states and 238517 transitions. Word has length 386 [2020-10-14 19:11:17,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:11:17,592 INFO L479 AbstractCegarLoop]: Abstraction has 205258 states and 238517 transitions. [2020-10-14 19:11:17,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:11:17,592 INFO L276 IsEmpty]: Start isEmpty. Operand 205258 states and 238517 transitions. [2020-10-14 19:11:17,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-10-14 19:11:17,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:11:17,734 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:11:17,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 19:11:17,734 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:11:17,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:11:17,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1717502678, now seen corresponding path program 1 times [2020-10-14 19:11:17,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:11:17,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806886038] [2020-10-14 19:11:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:11:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:17,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:17,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:18,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:18,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:22,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:22,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 411 [2020-10-14 19:11:22,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:11:22,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 19:11:22,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:22,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:11:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-14 19:11:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 19:11:22,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:23,009 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:11:23,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:11:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:23,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:23,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:23,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:11:23,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:23,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:11:23,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:23,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:23,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:11:23,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:11:23,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:11:23,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:23,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:11:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:23,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:23,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:11:23,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:23,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 19:11:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:23,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:23,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:23,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-14 19:11:23,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:23,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 19:11:23,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:23,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:23,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:11:23,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:11:23,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:11:23,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:23,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 19:11:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:23,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:23,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:23,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 19:11:23,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:23,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 19:11:23,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:23,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:23,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:11:23,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:11:23,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 19:11:23,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:23,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 19:11:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:23,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:23,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:23,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 19:11:23,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:23,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 19:11:23,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:23,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:11:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:11:23,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 19:11:23,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:23,623 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 302 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-14 19:11:23,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806886038] [2020-10-14 19:11:23,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:11:23,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:11:23,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236169506] [2020-10-14 19:11:23,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:11:23,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:11:23,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:11:23,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:11:23,624 INFO L87 Difference]: Start difference. First operand 205258 states and 238517 transitions. Second operand 7 states. [2020-10-14 19:11:24,055 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 19:11:24,643 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 19:11:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:11:31,178 INFO L93 Difference]: Finished difference Result 473755 states and 609080 transitions. [2020-10-14 19:11:31,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:11:31,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 395 [2020-10-14 19:11:31,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:11:32,285 INFO L225 Difference]: With dead ends: 473755 [2020-10-14 19:11:32,285 INFO L226 Difference]: Without dead ends: 268658 [2020-10-14 19:11:32,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 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 19:11:32,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268658 states. [2020-10-14 19:11:41,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268658 to 256188. [2020-10-14 19:11:41,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256188 states. [2020-10-14 19:11:42,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256188 states to 256188 states and 297712 transitions. [2020-10-14 19:11:42,199 INFO L78 Accepts]: Start accepts. Automaton has 256188 states and 297712 transitions. Word has length 395 [2020-10-14 19:11:42,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:11:42,199 INFO L479 AbstractCegarLoop]: Abstraction has 256188 states and 297712 transitions. [2020-10-14 19:11:42,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:11:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 256188 states and 297712 transitions. [2020-10-14 19:11:42,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-10-14 19:11:42,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:11:42,366 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:11:42,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 19:11:42,367 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:11:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:11:42,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1601470449, now seen corresponding path program 1 times [2020-10-14 19:11:42,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:11:42,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024503988] [2020-10-14 19:11:42,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:11:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:42,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:42,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:42,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:43,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:47,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:47,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 414 [2020-10-14 19:11:47,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:11:47,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 19:11:47,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:47,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:47,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:11:47,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 19:11:47,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 19:11:47,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:47,681 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:11:47,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:11:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:47,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:47,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:47,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:11:47,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:47,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:11:47,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:47,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:11:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:11:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:11:47,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:11:47,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:11:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:47,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:11:47,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:11:47,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 19:11:47,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:11:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 19:11:47,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:11:47,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:11:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:11:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:11:47,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 19:11:47,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:11:47,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 19:11:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:11:47,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking...