/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/Problem06_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:59:29,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:59:29,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:59:30,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:59:30,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:59:30,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:59:30,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:59:30,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:59:30,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:59:30,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:59:30,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:59:30,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:59:30,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:59:30,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:59:30,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:59:30,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:59:30,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:59:30,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:59:30,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:59:30,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:59:30,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:59:30,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:59:30,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:59:30,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:59:30,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:59:30,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:59:30,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:59:30,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:59:30,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:59:30,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:59:30,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:59:30,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:59:30,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:59:30,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:59:30,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:59:30,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:59:30,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:59:30,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:59:30,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:59:30,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:59:30,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:59:30,039 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 19:59:30,062 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:59:30,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:59:30,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:59:30,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:59:30,063 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:59:30,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:59:30,064 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:59:30,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:59:30,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:59:30,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:59:30,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:59:30,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:59:30,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:59:30,065 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:59:30,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:59:30,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:59:30,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:59:30,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:59:30,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:59:30,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:59:30,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:59:30,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:59:30,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:59:30,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:59:30,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:59:30,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:59:30,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:59:30,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:59:30,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:59:30,068 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 19:59:30,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:59:30,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:59:30,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:59:30,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:59:30,406 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:59:30,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label34.c [2020-10-14 19:59:30,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15e123b56/676abef79a1648908fe18ac8b052bc82/FLAGa86256471 [2020-10-14 19:59:31,438 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:59:31,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem06_label34.c [2020-10-14 19:59:31,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15e123b56/676abef79a1648908fe18ac8b052bc82/FLAGa86256471 [2020-10-14 19:59:31,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15e123b56/676abef79a1648908fe18ac8b052bc82 [2020-10-14 19:59:31,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:59:31,834 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:59:31,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:59:31,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:59:31,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:59:31,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:59:31" (1/1) ... [2020-10-14 19:59:31,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc1cbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:31, skipping insertion in model container [2020-10-14 19:59:31,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:59:31" (1/1) ... [2020-10-14 19:59:31,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:59:32,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:59:34,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:59:34,341 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:59:35,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:59:35,551 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:59:35,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35 WrapperNode [2020-10-14 19:59:35,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:59:35,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:59:35,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:59:35,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:59:35,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (1/1) ... [2020-10-14 19:59:35,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (1/1) ... [2020-10-14 19:59:35,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (1/1) ... [2020-10-14 19:59:35,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (1/1) ... [2020-10-14 19:59:35,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (1/1) ... [2020-10-14 19:59:35,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (1/1) ... [2020-10-14 19:59:35,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (1/1) ... [2020-10-14 19:59:35,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:59:35,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:59:35,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:59:35,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:59:35,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (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 19:59:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:59:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:59:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:59:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 19:59:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 19:59:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 19:59:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2020-10-14 19:59:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:59:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:59:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 19:59:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 19:59:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 19:59:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2020-10-14 19:59:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:59:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:59:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:59:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:59:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:59:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:59:43,069 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:59:43,070 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:59:43,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:59:43 BoogieIcfgContainer [2020-10-14 19:59:43,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:59:43,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:59:43,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:59:43,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:59:43,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:59:31" (1/3) ... [2020-10-14 19:59:43,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86926ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:59:43, skipping insertion in model container [2020-10-14 19:59:43,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:59:35" (2/3) ... [2020-10-14 19:59:43,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86926ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:59:43, skipping insertion in model container [2020-10-14 19:59:43,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:59:43" (3/3) ... [2020-10-14 19:59:43,100 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem06_label34.c [2020-10-14 19:59:43,111 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:59:43,124 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:59:43,138 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:59:43,167 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:59:43,168 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:59:43,168 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:59:43,168 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:59:43,168 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:59:43,168 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:59:43,168 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:59:43,168 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:59:43,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2020-10-14 19:59:43,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 994 [2020-10-14 19:59:43,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:59:43,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:43,284 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:59:43,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:59:43,291 INFO L82 PathProgramCache]: Analyzing trace with hash -2146104656, now seen corresponding path program 1 times [2020-10-14 19:59:43,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:59:43,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897364905] [2020-10-14 19:59:43,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:59:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:59:44,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:59:47,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:59:49,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:59:49,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1009 [2020-10-14 19:59:49,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:59:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 19:59:49,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:59:49,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:59:49,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-14 19:59:49,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:59:49,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1003 [2020-10-14 19:59:49,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 19:59:51,031 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 19:59:51,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:59:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:59:51,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:59:51,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:59:51,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:59:51,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:59:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 19:59:51,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:59:51,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:59:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:59:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:59:51,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:59:51,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:59:52,004 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 19:59:52,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897364905] [2020-10-14 19:59:52,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:59:52,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 19:59:52,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931417971] [2020-10-14 19:59:52,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:59:52,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:59:52,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:59:52,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:59:52,030 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 5 states. [2020-10-14 19:59:52,207 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 19:59:52,405 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:00:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:00:10,792 INFO L93 Difference]: Finished difference Result 4865 states and 9186 transitions. [2020-10-14 20:00:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 20:00:10,794 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 993 [2020-10-14 20:00:10,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:00:10,842 INFO L225 Difference]: With dead ends: 4865 [2020-10-14 20:00:10,842 INFO L226 Difference]: Without dead ends: 3482 [2020-10-14 20:00:10,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:00:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2020-10-14 20:00:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3394. [2020-10-14 20:00:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3394 states. [2020-10-14 20:00:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 5747 transitions. [2020-10-14 20:00:11,068 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 5747 transitions. Word has length 993 [2020-10-14 20:00:11,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:00:11,071 INFO L479 AbstractCegarLoop]: Abstraction has 3394 states and 5747 transitions. [2020-10-14 20:00:11,071 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:00:11,071 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 5747 transitions. [2020-10-14 20:00:11,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1014 [2020-10-14 20:00:11,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:00:11,113 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:00:11,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 20:00:11,114 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:00:11,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:00:11,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1916590626, now seen corresponding path program 1 times [2020-10-14 20:00:11,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:00:11,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1148841245] [2020-10-14 20:00:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:00:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:11,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:12,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:16,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:16,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1033 [2020-10-14 20:00:16,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:00:16,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5213 [2020-10-14 20:00:16,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:16,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:00:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 20:00:16,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 20:00:16,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:17,033 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:00:17,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:00:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:17,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:17,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:17,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:00:17,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:00:17,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 20:00:17,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:17,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:00:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:00:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:00:17,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:17,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:00:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:17,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:17,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:17,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 20:00:17,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:00:17,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 20:00:17,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:17,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:00:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:00:17,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 20:00:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:17,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 20:00:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:17,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:17,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:17,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 20:00:17,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:00:17,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 20:00:17,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:17,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:00:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:00:17,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 20:00:17,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:00:17,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1148841245] [2020-10-14 20:00:17,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:00:17,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:00:17,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953989291] [2020-10-14 20:00:17,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:00:17,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:00:17,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:00:17,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:00:17,732 INFO L87 Difference]: Start difference. First operand 3394 states and 5747 transitions. Second operand 7 states. [2020-10-14 20:00:17,938 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:00:18,254 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:00:40,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:00:40,888 INFO L93 Difference]: Finished difference Result 13281 states and 23202 transitions. [2020-10-14 20:00:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 20:00:40,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1013 [2020-10-14 20:00:40,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:00:41,007 INFO L225 Difference]: With dead ends: 13281 [2020-10-14 20:00:41,007 INFO L226 Difference]: Without dead ends: 9893 [2020-10-14 20:00:41,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:00:41,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9893 states. [2020-10-14 20:00:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9893 to 9823. [2020-10-14 20:00:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9823 states. [2020-10-14 20:00:41,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9823 states to 9823 states and 14729 transitions. [2020-10-14 20:00:41,324 INFO L78 Accepts]: Start accepts. Automaton has 9823 states and 14729 transitions. Word has length 1013 [2020-10-14 20:00:41,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:00:41,325 INFO L479 AbstractCegarLoop]: Abstraction has 9823 states and 14729 transitions. [2020-10-14 20:00:41,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:00:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 9823 states and 14729 transitions. [2020-10-14 20:00:41,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1013 [2020-10-14 20:00:41,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:00:41,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:00:41,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 20:00:41,375 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:00:41,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:00:41,376 INFO L82 PathProgramCache]: Analyzing trace with hash 404942283, now seen corresponding path program 1 times [2020-10-14 20:00:41,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:00:41,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960174610] [2020-10-14 20:00:41,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:00:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:41,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:43,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:46,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:46,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1030 [2020-10-14 20:00:46,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:00:46,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 20:00:46,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:46,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:46,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:00:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 20:00:46,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1000 [2020-10-14 20:00:46,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:47,618 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:00:47,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:00:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:47,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:47,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:47,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:00:47,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:00:47,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:00:47,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:47,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:47,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:00:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:00:47,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:00:47,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:47,758 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-14 20:00:47,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:00:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:00:47,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:00:47,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:00:47,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 20:00:47,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:00:47,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 20:00:47,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:00:47,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:00:47,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:00:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:00:47,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 20:00:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:00:49,170 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 20:00:49,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960174610] [2020-10-14 20:00:49,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:00:49,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:00:49,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572905350] [2020-10-14 20:00:49,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:00:49,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:00:49,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:00:49,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:00:49,174 INFO L87 Difference]: Start difference. First operand 9823 states and 14729 transitions. Second operand 5 states. [2020-10-14 20:00:49,323 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:01:03,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:01:03,720 INFO L93 Difference]: Finished difference Result 29113 states and 45419 transitions. [2020-10-14 20:01:03,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:01:03,721 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1012 [2020-10-14 20:01:03,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:01:03,810 INFO L225 Difference]: With dead ends: 29113 [2020-10-14 20:01:03,811 INFO L226 Difference]: Without dead ends: 19296 [2020-10-14 20:01:03,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:01:03,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19296 states. [2020-10-14 20:01:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19296 to 19265. [2020-10-14 20:01:04,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19265 states. [2020-10-14 20:01:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19265 states to 19265 states and 28029 transitions. [2020-10-14 20:01:04,386 INFO L78 Accepts]: Start accepts. Automaton has 19265 states and 28029 transitions. Word has length 1012 [2020-10-14 20:01:04,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:01:04,388 INFO L479 AbstractCegarLoop]: Abstraction has 19265 states and 28029 transitions. [2020-10-14 20:01:04,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:01:04,389 INFO L276 IsEmpty]: Start isEmpty. Operand 19265 states and 28029 transitions. [2020-10-14 20:01:04,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1040 [2020-10-14 20:01:04,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:01:04,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:01:04,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 20:01:04,470 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:01:04,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:01:04,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1122300415, now seen corresponding path program 1 times [2020-10-14 20:01:04,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:01:04,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720621955] [2020-10-14 20:01:04,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:01:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:04,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:06,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:09,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:09,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1057 [2020-10-14 20:01:09,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:01:09,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 20:01:09,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:09,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:01:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 20:01:09,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1000 [2020-10-14 20:01:09,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:10,264 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:01:10,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:01:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:10,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:10,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:10,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:01:10,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 20:01:10,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:10,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:01:10,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:01:10,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:01:10,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:01:10,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:01:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:10,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:10,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:10,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 20:01:10,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:10,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 20:01:10,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:10,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:01:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:01:10,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 20:01:10,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:01:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 20:01:11,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720621955] [2020-10-14 20:01:11,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:01:11,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 20:01:11,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715609132] [2020-10-14 20:01:11,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 20:01:11,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:01:11,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 20:01:11,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 20:01:11,441 INFO L87 Difference]: Start difference. First operand 19265 states and 28029 transitions. Second operand 6 states. [2020-10-14 20:01:11,579 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:01:12,038 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:01:34,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:01:34,364 INFO L93 Difference]: Finished difference Result 47993 states and 73352 transitions. [2020-10-14 20:01:34,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 20:01:34,365 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1039 [2020-10-14 20:01:34,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:01:34,487 INFO L225 Difference]: With dead ends: 47993 [2020-10-14 20:01:34,487 INFO L226 Difference]: Without dead ends: 28734 [2020-10-14 20:01:34,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:01:34,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28734 states. [2020-10-14 20:01:35,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28734 to 28683. [2020-10-14 20:01:35,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28683 states. [2020-10-14 20:01:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28683 states to 28683 states and 42123 transitions. [2020-10-14 20:01:35,306 INFO L78 Accepts]: Start accepts. Automaton has 28683 states and 42123 transitions. Word has length 1039 [2020-10-14 20:01:35,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:01:35,308 INFO L479 AbstractCegarLoop]: Abstraction has 28683 states and 42123 transitions. [2020-10-14 20:01:35,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 20:01:35,308 INFO L276 IsEmpty]: Start isEmpty. Operand 28683 states and 42123 transitions. [2020-10-14 20:01:35,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1047 [2020-10-14 20:01:35,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:01:35,396 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:01:35,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 20:01:35,397 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:01:35,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:01:35,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1807726629, now seen corresponding path program 1 times [2020-10-14 20:01:35,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:01:35,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312402467] [2020-10-14 20:01:35,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:01:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:35,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:36,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:40,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:40,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1066 [2020-10-14 20:01:40,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:01:40,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5073 [2020-10-14 20:01:40,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:40,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:40,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:01:40,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 20:01:40,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 20:01:40,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:40,895 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:01:40,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:01:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:40,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:40,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:40,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:01:40,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:40,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 20:01:40,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:40,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:01:40,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:01:40,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:01:40,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:40,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:01:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:41,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:41,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:41,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 20:01:41,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:41,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 20:01:41,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:41,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:01:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:01:41,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 20:01:41,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:41,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 20:01:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:01:41,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:01:41,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:01:41,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-14 20:01:41,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:01:41,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 20:01:41,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:01:41,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:01:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:01:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:01:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 20:01:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:01:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 20:01:41,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312402467] [2020-10-14 20:01:41,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:01:41,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 20:01:41,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959941620] [2020-10-14 20:01:41,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 20:01:41,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:01:41,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 20:01:41,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 20:01:41,795 INFO L87 Difference]: Start difference. First operand 28683 states and 42123 transitions. Second operand 8 states. [2020-10-14 20:01:41,948 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:01:43,110 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:01:59,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:01:59,523 INFO L93 Difference]: Finished difference Result 67378 states and 106911 transitions. [2020-10-14 20:01:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:01:59,524 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1046 [2020-10-14 20:01:59,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:01:59,704 INFO L225 Difference]: With dead ends: 67378 [2020-10-14 20:01:59,704 INFO L226 Difference]: Without dead ends: 38701 [2020-10-14 20:01:59,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 20:01:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38701 states. [2020-10-14 20:02:00,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38701 to 38513. [2020-10-14 20:02:00,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38513 states. [2020-10-14 20:02:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38513 states to 38513 states and 59866 transitions. [2020-10-14 20:02:01,064 INFO L78 Accepts]: Start accepts. Automaton has 38513 states and 59866 transitions. Word has length 1046 [2020-10-14 20:02:01,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:02:01,064 INFO L479 AbstractCegarLoop]: Abstraction has 38513 states and 59866 transitions. [2020-10-14 20:02:01,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 20:02:01,064 INFO L276 IsEmpty]: Start isEmpty. Operand 38513 states and 59866 transitions. [2020-10-14 20:02:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2020-10-14 20:02:01,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:02:01,191 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:02:01,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 20:02:01,191 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:02:01,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:02:01,192 INFO L82 PathProgramCache]: Analyzing trace with hash -457011276, now seen corresponding path program 1 times [2020-10-14 20:02:01,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:02:01,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056101553] [2020-10-14 20:02:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:02:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:01,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:02,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:06,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:06,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1085 [2020-10-14 20:02:06,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:02:06,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-14 20:02:06,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:06,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 20:02:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 20:02:06,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 20:02:06,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:06,743 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:02:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:02:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:06,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:06,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:02:06,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:06,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 20:02:06,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:06,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:02:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:06,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:02:06,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:06,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:02:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:06,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:06,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:06,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 20:02:06,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:06,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 20:02:06,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:06,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:02:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:06,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 20:02:06,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:06,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 20:02:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:06,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:06,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:06,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 20:02:06,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:06,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 20:02:06,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:06,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:06,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:02:06,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:02:06,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-14 20:02:06,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:02:07,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 20:02:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:07,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:07,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:07,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 20:02:07,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:07,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 20:02:07,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:07,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 20:02:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:02:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 20:02:07,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 20:02:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 81 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-14 20:02:08,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056101553] [2020-10-14 20:02:08,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:02:08,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 20:02:08,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191752366] [2020-10-14 20:02:08,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 20:02:08,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:02:08,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 20:02:08,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 20:02:08,330 INFO L87 Difference]: Start difference. First operand 38513 states and 59866 transitions. Second operand 7 states. [2020-10-14 20:02:08,483 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:02:09,666 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 20:02:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:02:28,993 INFO L93 Difference]: Finished difference Result 117241 states and 212799 transitions. [2020-10-14 20:02:28,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 20:02:28,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1063 [2020-10-14 20:02:28,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:02:29,444 INFO L225 Difference]: With dead ends: 117241 [2020-10-14 20:02:29,445 INFO L226 Difference]: Without dead ends: 78734 [2020-10-14 20:02:29,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 20:02:29,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78734 states. [2020-10-14 20:02:32,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78734 to 78349. [2020-10-14 20:02:32,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78349 states. [2020-10-14 20:02:32,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78349 states to 78349 states and 131594 transitions. [2020-10-14 20:02:32,481 INFO L78 Accepts]: Start accepts. Automaton has 78349 states and 131594 transitions. Word has length 1063 [2020-10-14 20:02:32,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:02:32,483 INFO L479 AbstractCegarLoop]: Abstraction has 78349 states and 131594 transitions. [2020-10-14 20:02:32,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 20:02:32,483 INFO L276 IsEmpty]: Start isEmpty. Operand 78349 states and 131594 transitions. [2020-10-14 20:02:32,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1112 [2020-10-14 20:02:32,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:02:32,776 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:02:32,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 20:02:32,776 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:02:32,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:02:32,777 INFO L82 PathProgramCache]: Analyzing trace with hash 998608018, now seen corresponding path program 1 times [2020-10-14 20:02:32,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:02:32,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230130207] [2020-10-14 20:02:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:02:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:33,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:33,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:38,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:38,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1131 [2020-10-14 20:02:38,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 20:02:38,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5102 [2020-10-14 20:02:38,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:38,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 20:02:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 20:02:38,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1000 [2020-10-14 20:02:38,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:38,870 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:02:38,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:02:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:38,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:38,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:38,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:02:38,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:38,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 20:02:38,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:38,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:38,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:02:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:38,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:02:38,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:38,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:02:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:38,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:38,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:38,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 20:02:38,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:38,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 20:02:38,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:38,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:38,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:02:38,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:38,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:02:38,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:38,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-14 20:02:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:39,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:39,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:02:39,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 20:02:39,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:02:39,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 20:02:39,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:02:39,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:02:39,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:02:39,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:02:39,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 20:02:39,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:02:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 20:02:40,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230130207] [2020-10-14 20:02:40,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 20:02:40,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 20:02:40,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718122095] [2020-10-14 20:02:40,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 20:02:40,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 20:02:40,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 20:02:40,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 20:02:40,602 INFO L87 Difference]: Start difference. First operand 78349 states and 131594 transitions. Second operand 5 states. [2020-10-14 20:02:40,737 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 20:02:53,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 20:02:53,944 INFO L93 Difference]: Finished difference Result 156661 states and 263366 transitions. [2020-10-14 20:02:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 20:02:53,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1111 [2020-10-14 20:02:53,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 20:02:54,291 INFO L225 Difference]: With dead ends: 156661 [2020-10-14 20:02:54,291 INFO L226 Difference]: Without dead ends: 78386 [2020-10-14 20:02:54,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 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 20:02:54,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78386 states. [2020-10-14 20:02:56,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78386 to 78347. [2020-10-14 20:02:56,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78347 states. [2020-10-14 20:02:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78347 states to 78347 states and 125756 transitions. [2020-10-14 20:02:56,289 INFO L78 Accepts]: Start accepts. Automaton has 78347 states and 125756 transitions. Word has length 1111 [2020-10-14 20:02:56,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 20:02:56,290 INFO L479 AbstractCegarLoop]: Abstraction has 78347 states and 125756 transitions. [2020-10-14 20:02:56,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 20:02:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 78347 states and 125756 transitions. [2020-10-14 20:02:56,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1534 [2020-10-14 20:02:56,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 20:02:56,516 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 20:02:56,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 20:02:56,516 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_output5Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 20:02:56,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 20:02:56,517 INFO L82 PathProgramCache]: Analyzing trace with hash -169918548, now seen corresponding path program 1 times [2020-10-14 20:02:56,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 20:02:56,517 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703922546] [2020-10-14 20:02:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 20:02:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:02:57,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:57,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:02:58,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:02,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:02,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1559 [2020-10-14 20:03:02,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 20:03:02,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5208 [2020-10-14 20:03:02,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:02,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:02,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 20:03:02,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-14 20:03:02,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 502 [2020-10-14 20:03:02,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:02,862 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 20:03:02,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 20:03:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:02,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:02,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:02,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 20:03:02,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:02,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 20:03:02,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:02,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:03:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:03:02,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:03:02,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:02,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 20:03:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:02,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:02,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:02,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 20:03:02,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:02,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 20:03:02,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:02,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 20:03:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:03:02,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 20:03:02,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:02,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 20:03:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:02,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:02,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:02,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 20:03:02,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 20:03:02,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:02,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 20:03:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 20:03:02,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 20:03:02,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:03,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-14 20:03:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:03,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:04,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:04,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 508 [2020-10-14 20:03:04,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1448 [2020-10-14 20:03:04,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:04,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 20:03:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:03:04,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 508 [2020-10-14 20:03:04,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:04,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 20:03:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:04,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:05,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:05,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-14 20:03:05,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:05,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-14 20:03:05,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:05,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:05,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 20:03:05,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:03:05,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 281 [2020-10-14 20:03:05,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 20:03:05,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 20:03:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 20:03:05,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 20:03:05,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 20:03:05,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 20:03:05,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 20:03:05,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 20:03:05,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 20:03:05,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 20:03:05,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 20:03:05,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 20:03:05,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 20:03:05,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0