/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=BIGGEST --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/Problem18_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:55:21,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:55:21,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:55:21,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:55:21,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:55:21,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:55:21,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:55:21,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:55:21,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:55:21,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:55:21,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:55:21,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:55:21,043 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:55:21,044 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:55:21,045 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:55:21,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:55:21,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:55:21,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:55:21,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:55:21,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:55:21,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:55:21,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:55:21,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:55:21,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:55:21,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:55:21,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:55:21,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:55:21,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:55:21,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:55:21,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:55:21,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:55:21,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:55:21,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:55:21,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:55:21,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:55:21,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:55:21,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:55:21,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:55:21,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:55:21,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:55:21,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:55:21,070 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 [2020-10-12 14:55:21,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:55:21,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:55:21,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:55:21,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:55:21,096 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:55:21,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:55:21,096 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:55:21,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:55:21,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:55:21,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:55:21,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:55:21,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:55:21,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:55:21,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:55:21,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:55:21,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:55:21,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:55:21,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:55:21,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:55:21,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:55:21,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:55:21,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:55:21,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:55:21,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:55:21,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:55:21,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:55:21,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:55:21,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:55:21,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:55:21,100 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:55:21,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:55:21,464 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:55:21,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:55:21,469 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:55:21,470 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:55:21,470 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label08.c [2020-10-12 14:55:21,533 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9884401e8/69d5df12b9104cf38f3749217a600c2a/FLAG42d0ec4da [2020-10-12 14:55:22,316 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:55:22,317 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label08.c [2020-10-12 14:55:22,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9884401e8/69d5df12b9104cf38f3749217a600c2a/FLAG42d0ec4da [2020-10-12 14:55:22,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9884401e8/69d5df12b9104cf38f3749217a600c2a [2020-10-12 14:55:22,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:55:22,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:55:22,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:55:22,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:55:22,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:55:22,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:55:22" (1/1) ... [2020-10-12 14:55:22,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a529ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:22, skipping insertion in model container [2020-10-12 14:55:22,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:55:22" (1/1) ... [2020-10-12 14:55:22,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:55:22,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:55:24,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:55:24,553 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:55:25,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:55:25,054 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:55:25,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25 WrapperNode [2020-10-12 14:55:25,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:55:25,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:55:25,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:55:25,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:55:25,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (1/1) ... [2020-10-12 14:55:25,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (1/1) ... [2020-10-12 14:55:25,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (1/1) ... [2020-10-12 14:55:25,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (1/1) ... [2020-10-12 14:55:25,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (1/1) ... [2020-10-12 14:55:25,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (1/1) ... [2020-10-12 14:55:25,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (1/1) ... [2020-10-12 14:55:25,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:55:25,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:55:25,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:55:25,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:55:25,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (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 [2020-10-12 14:55:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:55:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:55:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:55:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:55:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-12 14:55:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:55:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:55:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:55:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-12 14:55:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:55:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:55:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:55:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:55:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:55:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:55:31,484 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:55:31,484 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:55:31,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:55:31 BoogieIcfgContainer [2020-10-12 14:55:31,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:55:31,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:55:31,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:55:31,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:55:31,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:55:22" (1/3) ... [2020-10-12 14:55:31,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102eb47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:55:31, skipping insertion in model container [2020-10-12 14:55:31,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:55:25" (2/3) ... [2020-10-12 14:55:31,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102eb47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:55:31, skipping insertion in model container [2020-10-12 14:55:31,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:55:31" (3/3) ... [2020-10-12 14:55:31,504 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label08.c [2020-10-12 14:55:31,517 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:55:31,527 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:55:31,543 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:55:31,572 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:55:31,572 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:55:31,572 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:55:31,573 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:55:31,573 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:55:31,573 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:55:31,573 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:55:31,573 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:55:31,610 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-12 14:55:31,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-12 14:55:31,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:55:31,621 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] [2020-10-12 14:55:31,621 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:55:31,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:55:31,628 INFO L82 PathProgramCache]: Analyzing trace with hash 526679754, now seen corresponding path program 1 times [2020-10-12 14:55:31,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:55:31,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2103677111] [2020-10-12 14:55:31,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:55:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:55:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:55:32,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:55:32,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-12 14:55:32,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:55:32,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-12 14:55:32,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:55:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:55:32,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:55:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 14:55:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:55:32,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:55:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:55:32,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:55:32,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:55:32,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:55:32,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:55:32,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:55:32,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:55:32,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:55:32,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:55:32,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:55:32,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:55:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:55:32,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2103677111] [2020-10-12 14:55:32,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:55:32,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 14:55:32,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033244411] [2020-10-12 14:55:32,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-12 14:55:32,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:55:32,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-12 14:55:32,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-12 14:55:32,373 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 4 states. [2020-10-12 14:55:42,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:55:42,068 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-12 14:55:42,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:55:42,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-10-12 14:55:42,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:55:42,104 INFO L225 Difference]: With dead ends: 2270 [2020-10-12 14:55:42,105 INFO L226 Difference]: Without dead ends: 1432 [2020-10-12 14:55:42,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:55:42,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-12 14:55:42,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-12 14:55:42,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-12 14:55:42,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2331 transitions. [2020-10-12 14:55:42,295 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2331 transitions. Word has length 27 [2020-10-12 14:55:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:55:42,297 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2331 transitions. [2020-10-12 14:55:42,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-12 14:55:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2331 transitions. [2020-10-12 14:55:42,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-12 14:55:42,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:55:42,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:55:42,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:55:42,308 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:55:42,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:55:42,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1211608110, now seen corresponding path program 1 times [2020-10-12 14:55:42,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:55:42,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417713260] [2020-10-12 14:55:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:55:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:55:42,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:55:42,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:55:43,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:55:43,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-12 14:55:43,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:55:43,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-10-12 14:55:43,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:55:43,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:55:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:55:43,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 14:55:43,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:55:43,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:55:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:55:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:55:43,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:55:43,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:55:43,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:55:43,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:55:43,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:55:43,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:55:43,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:55:43,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:55:43,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:55:43,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:55:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:55:43,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:55:43,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:55:43,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:55:43,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:55:43,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-12 14:55:43,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:55:43,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:55:43,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:55:43,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-12 14:55:43,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10 [2020-10-12 14:55:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:55:43,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417713260] [2020-10-12 14:55:43,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:55:43,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 14:55:43,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941429084] [2020-10-12 14:55:43,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:55:43,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:55:43,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:55:43,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:55:43,484 INFO L87 Difference]: Start difference. First operand 1425 states and 2331 transitions. Second operand 8 states. [2020-10-12 14:55:59,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:55:59,118 INFO L93 Difference]: Finished difference Result 5761 states and 9512 transitions. [2020-10-12 14:55:59,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-12 14:55:59,121 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 97 [2020-10-12 14:55:59,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:55:59,153 INFO L225 Difference]: With dead ends: 5761 [2020-10-12 14:55:59,154 INFO L226 Difference]: Without dead ends: 4342 [2020-10-12 14:55:59,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-12 14:55:59,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4342 states. [2020-10-12 14:55:59,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4342 to 4321. [2020-10-12 14:55:59,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4321 states. [2020-10-12 14:55:59,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4321 states to 4321 states and 6019 transitions. [2020-10-12 14:55:59,342 INFO L78 Accepts]: Start accepts. Automaton has 4321 states and 6019 transitions. Word has length 97 [2020-10-12 14:55:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:55:59,344 INFO L479 AbstractCegarLoop]: Abstraction has 4321 states and 6019 transitions. [2020-10-12 14:55:59,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:55:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4321 states and 6019 transitions. [2020-10-12 14:55:59,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-12 14:55:59,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:55:59,353 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 14:55:59,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:55:59,353 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:55:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:55:59,354 INFO L82 PathProgramCache]: Analyzing trace with hash 34726003, now seen corresponding path program 1 times [2020-10-12 14:55:59,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:55:59,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386152184] [2020-10-12 14:55:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:55:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:55:59,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:55:59,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:00,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:00,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-12 14:56:00,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:56:00,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 654 [2020-10-12 14:56:00,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:56:00,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:56:00,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:56:00,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:00,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:56:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:00,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:00,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:00,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:56:00,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:00,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:56:00,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:56:00,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:56:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:56:00,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:56:00,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:56:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:00,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:00,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:00,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:56:00,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:00,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-12 14:56:00,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:00,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:56:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:56:00,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 14:56:00,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:56:00,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386152184] [2020-10-12 14:56:00,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:56:00,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:56:00,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083850051] [2020-10-12 14:56:00,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:56:00,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:56:00,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:56:00,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:56:00,344 INFO L87 Difference]: Start difference. First operand 4321 states and 6019 transitions. Second operand 7 states. [2020-10-12 14:56:11,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:56:11,709 INFO L93 Difference]: Finished difference Result 10276 states and 14597 transitions. [2020-10-12 14:56:11,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:56:11,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 98 [2020-10-12 14:56:11,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:56:11,750 INFO L225 Difference]: With dead ends: 10276 [2020-10-12 14:56:11,750 INFO L226 Difference]: Without dead ends: 5961 [2020-10-12 14:56:11,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:56:11,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2020-10-12 14:56:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 5852. [2020-10-12 14:56:11,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5852 states. [2020-10-12 14:56:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5852 states to 5852 states and 7836 transitions. [2020-10-12 14:56:12,019 INFO L78 Accepts]: Start accepts. Automaton has 5852 states and 7836 transitions. Word has length 98 [2020-10-12 14:56:12,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:56:12,020 INFO L479 AbstractCegarLoop]: Abstraction has 5852 states and 7836 transitions. [2020-10-12 14:56:12,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:56:12,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5852 states and 7836 transitions. [2020-10-12 14:56:12,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-12 14:56:12,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:56:12,030 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 14:56:12,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:56:12,031 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:56:12,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:56:12,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1520529159, now seen corresponding path program 1 times [2020-10-12 14:56:12,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:56:12,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939512060] [2020-10-12 14:56:12,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:56:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:12,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:12,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:13,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:13,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-12 14:56:13,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:56:13,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1389 [2020-10-12 14:56:13,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:13,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:56:13,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:56:13,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 14:56:13,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:13,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:56:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:13,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:13,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:13,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:56:13,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:13,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 14:56:13,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:56:13,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:56:13,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:56:13,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:56:13,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:56:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:13,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:13,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:13,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:56:13,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:13,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-12 14:56:13,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:56:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:56:13,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:56:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:56:14,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939512060] [2020-10-12 14:56:14,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:56:14,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:56:14,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660461330] [2020-10-12 14:56:14,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:56:14,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:56:14,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:56:14,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:56:14,005 INFO L87 Difference]: Start difference. First operand 5852 states and 7836 transitions. Second operand 7 states. [2020-10-12 14:56:25,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:56:25,115 INFO L93 Difference]: Finished difference Result 13402 states and 18429 transitions. [2020-10-12 14:56:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:56:25,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 124 [2020-10-12 14:56:25,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:56:25,169 INFO L225 Difference]: With dead ends: 13402 [2020-10-12 14:56:25,169 INFO L226 Difference]: Without dead ends: 7556 [2020-10-12 14:56:25,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:56:25,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7556 states. [2020-10-12 14:56:25,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7556 to 7324. [2020-10-12 14:56:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7324 states. [2020-10-12 14:56:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7324 states to 7324 states and 9494 transitions. [2020-10-12 14:56:25,524 INFO L78 Accepts]: Start accepts. Automaton has 7324 states and 9494 transitions. Word has length 124 [2020-10-12 14:56:25,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:56:25,526 INFO L479 AbstractCegarLoop]: Abstraction has 7324 states and 9494 transitions. [2020-10-12 14:56:25,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:56:25,526 INFO L276 IsEmpty]: Start isEmpty. Operand 7324 states and 9494 transitions. [2020-10-12 14:56:25,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-10-12 14:56:25,528 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:56:25,528 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-12 14:56:25,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:56:25,529 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:56:25,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:56:25,529 INFO L82 PathProgramCache]: Analyzing trace with hash -602834034, now seen corresponding path program 1 times [2020-10-12 14:56:25,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:56:25,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878123149] [2020-10-12 14:56:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:56:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:25,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:25,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:26,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:26,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-12 14:56:26,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:56:26,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 697 [2020-10-12 14:56:26,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:56:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:56:26,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:56:26,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:26,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:56:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:26,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:26,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:26,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:56:26,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:26,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 14:56:26,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:26,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:56:26,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:56:26,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:56:26,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:56:26,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:56:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:26,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:26,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:26,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-12 14:56:26,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:26,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-12 14:56:26,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:56:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:56:26,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-12 14:56:26,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:56:26,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878123149] [2020-10-12 14:56:26,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:56:26,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:56:26,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619359969] [2020-10-12 14:56:26,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:56:26,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:56:26,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:56:26,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:56:26,611 INFO L87 Difference]: Start difference. First operand 7324 states and 9494 transitions. Second operand 7 states. [2020-10-12 14:56:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:56:36,003 INFO L93 Difference]: Finished difference Result 17151 states and 22879 transitions. [2020-10-12 14:56:36,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:56:36,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-10-12 14:56:36,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:56:36,055 INFO L225 Difference]: With dead ends: 17151 [2020-10-12 14:56:36,056 INFO L226 Difference]: Without dead ends: 9833 [2020-10-12 14:56:36,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:56:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2020-10-12 14:56:36,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 9497. [2020-10-12 14:56:36,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9497 states. [2020-10-12 14:56:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9497 states to 9497 states and 11781 transitions. [2020-10-12 14:56:36,364 INFO L78 Accepts]: Start accepts. Automaton has 9497 states and 11781 transitions. Word has length 145 [2020-10-12 14:56:36,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:56:36,365 INFO L479 AbstractCegarLoop]: Abstraction has 9497 states and 11781 transitions. [2020-10-12 14:56:36,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:56:36,365 INFO L276 IsEmpty]: Start isEmpty. Operand 9497 states and 11781 transitions. [2020-10-12 14:56:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-10-12 14:56:36,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:56:36,371 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:56:36,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:56:36,372 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:56:36,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:56:36,373 INFO L82 PathProgramCache]: Analyzing trace with hash -439230981, now seen corresponding path program 1 times [2020-10-12 14:56:36,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:56:36,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370766668] [2020-10-12 14:56:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:56:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:36,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:37,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:37,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:37,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-12 14:56:37,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:56:37,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1525 [2020-10-12 14:56:37,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:56:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:56:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 14:56:37,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:38,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:56:38,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:38,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:38,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:38,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:56:38,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:38,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:56:38,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:56:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:56:38,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:56:38,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:38,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:56:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:38,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:38,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:38,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 14:56:38,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:38,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-12 14:56:38,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:38,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:56:38,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:56:38,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-12 14:56:38,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:56:38,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-12 14:56:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:38,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:38,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:38,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:38,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:56:38,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:56:38,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-12 14:56:38,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:38,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:56:38,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:56:38,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:56:38,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:39,148 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 14:56:39,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370766668] [2020-10-12 14:56:39,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:56:39,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:56:39,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705456953] [2020-10-12 14:56:39,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:56:39,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:56:39,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:56:39,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:56:39,151 INFO L87 Difference]: Start difference. First operand 9497 states and 11781 transitions. Second operand 6 states. [2020-10-12 14:56:46,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:56:46,153 INFO L93 Difference]: Finished difference Result 17816 states and 22433 transitions. [2020-10-12 14:56:46,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:56:46,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 310 [2020-10-12 14:56:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:56:46,185 INFO L225 Difference]: With dead ends: 17816 [2020-10-12 14:56:46,186 INFO L226 Difference]: Without dead ends: 8841 [2020-10-12 14:56:46,212 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:56:46,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8841 states. [2020-10-12 14:56:46,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8841 to 8767. [2020-10-12 14:56:46,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8767 states. [2020-10-12 14:56:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8767 states to 8767 states and 10126 transitions. [2020-10-12 14:56:46,399 INFO L78 Accepts]: Start accepts. Automaton has 8767 states and 10126 transitions. Word has length 310 [2020-10-12 14:56:46,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:56:46,400 INFO L479 AbstractCegarLoop]: Abstraction has 8767 states and 10126 transitions. [2020-10-12 14:56:46,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:56:46,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8767 states and 10126 transitions. [2020-10-12 14:56:46,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2020-10-12 14:56:46,417 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:56:46,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:56:46,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:56:46,418 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:56:46,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:56:46,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1417247358, now seen corresponding path program 1 times [2020-10-12 14:56:46,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:56:46,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369242318] [2020-10-12 14:56:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:56:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:46,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:46,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:47,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:51,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:51,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 667 [2020-10-12 14:56:51,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:56:51,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5075 [2020-10-12 14:56:51,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 14:56:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:56:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 636 [2020-10-12 14:56:51,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:51,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:56:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:51,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:51,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:51,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:56:51,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:51,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:56:51,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:56:51,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:56:51,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:56:51,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:51,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:56:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:52,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:53,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:53,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:56:53,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1483 [2020-10-12 14:56:53,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:56:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:56:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 532 [2020-10-12 14:56:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:56:53,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:56:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:53,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:54,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:54,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:56:54,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:54,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-12 14:56:54,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:54,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:56:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:56:54,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-12 14:56:54,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:56:54,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:56:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:54,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:54,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:54,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:56:54,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:54,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:56:54,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:54,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:56:54,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:56:54,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 14:56:54,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:56:55,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:56:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:56:55,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:56:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:56:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:56:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:56:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-12 14:56:56,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:56:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:56:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:56:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:56:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:56:57,313 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 41 proven. 92 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:56:57,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369242318] [2020-10-12 14:56:57,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:56:57,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:56:57,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107928010] [2020-10-12 14:56:57,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:56:57,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:56:57,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:56:57,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:56:57,317 INFO L87 Difference]: Start difference. First operand 8767 states and 10126 transitions. Second operand 9 states. [2020-10-12 14:57:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:57:08,972 INFO L93 Difference]: Finished difference Result 20681 states and 24760 transitions. [2020-10-12 14:57:08,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 14:57:08,973 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 651 [2020-10-12 14:57:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:57:09,018 INFO L225 Difference]: With dead ends: 20681 [2020-10-12 14:57:09,018 INFO L226 Difference]: Without dead ends: 13332 [2020-10-12 14:57:09,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2020-10-12 14:57:09,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2020-10-12 14:57:09,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 12465. [2020-10-12 14:57:09,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12465 states. [2020-10-12 14:57:09,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12465 states to 12465 states and 14153 transitions. [2020-10-12 14:57:09,311 INFO L78 Accepts]: Start accepts. Automaton has 12465 states and 14153 transitions. Word has length 651 [2020-10-12 14:57:09,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:57:09,313 INFO L479 AbstractCegarLoop]: Abstraction has 12465 states and 14153 transitions. [2020-10-12 14:57:09,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:57:09,313 INFO L276 IsEmpty]: Start isEmpty. Operand 12465 states and 14153 transitions. [2020-10-12 14:57:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2020-10-12 14:57:09,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:09,346 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:57:09,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:57:09,347 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:09,347 INFO L82 PathProgramCache]: Analyzing trace with hash 2114264893, now seen corresponding path program 1 times [2020-10-12 14:57:09,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:09,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806967073] [2020-10-12 14:57:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:09,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:10,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:14,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:14,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 978 [2020-10-12 14:57:14,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:57:14,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4576 [2020-10-12 14:57:14,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:57:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 14:57:14,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 14:57:14,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:57:14,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:57:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:14,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:14,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:14,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:57:14,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:14,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:57:14,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:14,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:57:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:14,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:14,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:14,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:57:14,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-12 14:57:14,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:14,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:14,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:57:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:14,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:14,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:14,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:57:14,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 14:57:14,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:14,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:14,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:57:14,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:57:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:14,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:14,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:14,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:57:14,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:14,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:57:14,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:14,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:14,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:14,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:15,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:57:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:15,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:15,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:15,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:57:15,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:15,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-12 14:57:15,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:15,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 14:57:15,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:15,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:57:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:15,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:15,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:15,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:57:15,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:15,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 14:57:15,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 14:57:15,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:15,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:57:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:15,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:15,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:15,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:57:15,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-12 14:57:15,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:57:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:57:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-12 14:57:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 256 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-12 14:57:15,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806967073] [2020-10-12 14:57:15,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:57:15,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:57:15,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335553429] [2020-10-12 14:57:15,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:57:15,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:57:15,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:57:15,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:57:15,983 INFO L87 Difference]: Start difference. First operand 12465 states and 14153 transitions. Second operand 7 states. [2020-10-12 14:57:29,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:57:29,697 INFO L93 Difference]: Finished difference Result 29541 states and 34863 transitions. [2020-10-12 14:57:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:57:29,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 958 [2020-10-12 14:57:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:57:29,756 INFO L225 Difference]: With dead ends: 29541 [2020-10-12 14:57:29,757 INFO L226 Difference]: Without dead ends: 18494 [2020-10-12 14:57:29,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:57:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18494 states. [2020-10-12 14:57:30,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18494 to 18331. [2020-10-12 14:57:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18331 states. [2020-10-12 14:57:30,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18331 states to 18331 states and 20637 transitions. [2020-10-12 14:57:30,275 INFO L78 Accepts]: Start accepts. Automaton has 18331 states and 20637 transitions. Word has length 958 [2020-10-12 14:57:30,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:57:30,278 INFO L479 AbstractCegarLoop]: Abstraction has 18331 states and 20637 transitions. [2020-10-12 14:57:30,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:57:30,278 INFO L276 IsEmpty]: Start isEmpty. Operand 18331 states and 20637 transitions. [2020-10-12 14:57:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2020-10-12 14:57:30,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:30,320 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:57:30,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:57:30,320 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:30,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:30,321 INFO L82 PathProgramCache]: Analyzing trace with hash 598301933, now seen corresponding path program 1 times [2020-10-12 14:57:30,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:30,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000174098] [2020-10-12 14:57:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:30,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:30,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:31,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:35,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:35,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1056 [2020-10-12 14:57:35,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:57:35,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 14:57:35,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:35,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:57:35,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-12 14:57:35,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:57:35,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:35,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:57:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:35,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:35,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:35,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:57:35,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:35,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:57:35,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:35,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:35,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:35,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:57:35,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:57:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:35,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:36,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:36,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:57:36,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-12 14:57:36,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:36,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:36,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:57:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:36,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:36,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:36,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:57:36,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:36,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 14:57:36,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:36,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:36,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:36,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:36,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:57:36,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:57:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:36,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:36,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:36,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:57:36,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:36,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:57:36,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:36,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:36,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:36,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:57:36,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:57:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:36,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:36,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:36,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:57:36,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:36,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-12 14:57:36,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:36,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-12 14:57:36,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:36,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:57:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:36,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:36,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:36,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:57:36,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:57:36,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 14:57:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:36,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:57:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:37,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:37,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:37,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:57:37,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:37,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:57:37,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:37,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:57:37,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:57:37,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:57:37,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:37,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 918 [2020-10-12 14:57:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:37,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:37,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:37,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:57:37,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:57:37,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 14:57:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 242 proven. 75 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2020-10-12 14:57:37,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2000174098] [2020-10-12 14:57:37,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:57:37,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:57:37,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136168595] [2020-10-12 14:57:37,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:57:37,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:57:37,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:57:37,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:57:37,643 INFO L87 Difference]: Start difference. First operand 18331 states and 20637 transitions. Second operand 7 states. [2020-10-12 14:57:46,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:57:46,185 INFO L93 Difference]: Finished difference Result 49801 states and 57579 transitions. [2020-10-12 14:57:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:57:46,186 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1034 [2020-10-12 14:57:46,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:57:46,257 INFO L225 Difference]: With dead ends: 49801 [2020-10-12 14:57:46,257 INFO L226 Difference]: Without dead ends: 32888 [2020-10-12 14:57:46,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:57:46,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32888 states. [2020-10-12 14:57:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32888 to 31397. [2020-10-12 14:57:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31397 states. [2020-10-12 14:57:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31397 states to 31397 states and 36071 transitions. [2020-10-12 14:57:46,844 INFO L78 Accepts]: Start accepts. Automaton has 31397 states and 36071 transitions. Word has length 1034 [2020-10-12 14:57:46,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:57:46,846 INFO L479 AbstractCegarLoop]: Abstraction has 31397 states and 36071 transitions. [2020-10-12 14:57:46,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:57:46,846 INFO L276 IsEmpty]: Start isEmpty. Operand 31397 states and 36071 transitions. [2020-10-12 14:57:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2020-10-12 14:57:46,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:57:46,867 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:57:46,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:57:46,867 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:57:46,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:57:46,868 INFO L82 PathProgramCache]: Analyzing trace with hash -226358135, now seen corresponding path program 1 times [2020-10-12 14:57:46,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:57:46,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470097178] [2020-10-12 14:57:46,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:57:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:47,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:47,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:50,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:50,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1214 [2020-10-12 14:57:52,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:57:52,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5079 [2020-10-12 14:57:52,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:57:52,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1096 [2020-10-12 14:57:52,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 14:57:52,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:57:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:52,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:57:52,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:52,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:57:52,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:52,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:57:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:52,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:57:52,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:52,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-12 14:57:52,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:52,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:52,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:57:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:52,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:57:52,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-12 14:57:52,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:57:52,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:52,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:57:52,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:52,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:57:52,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:52,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:52,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:52,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:57:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:52,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:57:52,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:52,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:57:52,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:52,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:57:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:52,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:57:52,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 14:57:52,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:57:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:52,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 14:57:52,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:52,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:57:52,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:57:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:52,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:57:52,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 14:57:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:52,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:52,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:52,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 14:57:52,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:57:52,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-12 14:57:52,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:57:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:57:52,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:57:52,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:52,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1082 [2020-10-12 14:57:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:57:53,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:53,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:57:53,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:57:53,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 14:57:53,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:57:53,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-10-12 14:57:53,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:57:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 14:57:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:57:53,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 14:57:53,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:57:53,658 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-10-12 14:57:53,851 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-12 14:57:54,050 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-10-12 14:57:55,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 459 proven. 2 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2020-10-12 14:57:55,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470097178] [2020-10-12 14:57:55,667 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:57:55,667 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 14:57:55,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014401222] [2020-10-12 14:57:55,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 14:57:55,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:57:55,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 14:57:55,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:57:55,670 INFO L87 Difference]: Start difference. First operand 31397 states and 36071 transitions. Second operand 10 states. [2020-10-12 14:57:56,405 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 45 [2020-10-12 14:57:59,375 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-10-12 14:57:59,716 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2020-10-12 14:58:00,202 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 42 [2020-10-12 14:58:00,346 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 42 [2020-10-12 14:58:04,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:04,143 INFO L93 Difference]: Finished difference Result 61624 states and 71137 transitions. [2020-10-12 14:58:04,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:58:04,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1190 [2020-10-12 14:58:04,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:04,220 INFO L225 Difference]: With dead ends: 61624 [2020-10-12 14:58:04,221 INFO L226 Difference]: Without dead ends: 31416 [2020-10-12 14:58:04,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-10-12 14:58:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31416 states. [2020-10-12 14:58:04,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31416 to 31314. [2020-10-12 14:58:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31314 states. [2020-10-12 14:58:04,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31314 states to 31314 states and 35533 transitions. [2020-10-12 14:58:04,811 INFO L78 Accepts]: Start accepts. Automaton has 31314 states and 35533 transitions. Word has length 1190 [2020-10-12 14:58:04,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:04,813 INFO L479 AbstractCegarLoop]: Abstraction has 31314 states and 35533 transitions. [2020-10-12 14:58:04,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 14:58:04,813 INFO L276 IsEmpty]: Start isEmpty. Operand 31314 states and 35533 transitions. [2020-10-12 14:58:04,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1201 [2020-10-12 14:58:04,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:04,837 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:58:04,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:58:04,837 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:04,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:04,838 INFO L82 PathProgramCache]: Analyzing trace with hash 634676337, now seen corresponding path program 1 times [2020-10-12 14:58:04,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:04,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364723371] [2020-10-12 14:58:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:05,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:05,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:07,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1224 [2020-10-12 14:58:10,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:10,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-12 14:58:10,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1121 [2020-10-12 14:58:10,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:58:10,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:10,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:10,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:58:10,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:10,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:10,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:58:10,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:10,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:58:10,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:10,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:10,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:10,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:58:10,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:10,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:58:10,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:10,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:58:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:58:10,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:58:10,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:10,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:10,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:58:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:10,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:58:10,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:10,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:10,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:10,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:10,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:10,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:58:10,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:10,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:10,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:10,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:58:11,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:11,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:11,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:11,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 14:58:11,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:11,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:58:11,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:11,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:11,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:11,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:11,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:11,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 14:58:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:11,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:11,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:11,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-12 14:58:11,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:11,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:58:11,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-12 14:58:11,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:11,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1107 [2020-10-12 14:58:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:11,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:11,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:11,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-12 14:58:11,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:11,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 14:58:11,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:11,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-12 14:58:11,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 399 proven. 2 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2020-10-12 14:58:11,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364723371] [2020-10-12 14:58:11,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:11,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:58:11,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315117488] [2020-10-12 14:58:11,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:11,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:11,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:11,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:11,849 INFO L87 Difference]: Start difference. First operand 31314 states and 35533 transitions. Second operand 7 states. [2020-10-12 14:58:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:23,421 INFO L93 Difference]: Finished difference Result 80357 states and 92358 transitions. [2020-10-12 14:58:23,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:58:23,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1200 [2020-10-12 14:58:23,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:23,545 INFO L225 Difference]: With dead ends: 80357 [2020-10-12 14:58:23,546 INFO L226 Difference]: Without dead ends: 47625 [2020-10-12 14:58:23,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:58:23,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47625 states. [2020-10-12 14:58:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47625 to 43371. [2020-10-12 14:58:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43371 states. [2020-10-12 14:58:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43371 states to 43371 states and 48823 transitions. [2020-10-12 14:58:25,761 INFO L78 Accepts]: Start accepts. Automaton has 43371 states and 48823 transitions. Word has length 1200 [2020-10-12 14:58:25,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:25,762 INFO L479 AbstractCegarLoop]: Abstraction has 43371 states and 48823 transitions. [2020-10-12 14:58:25,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:25,763 INFO L276 IsEmpty]: Start isEmpty. Operand 43371 states and 48823 transitions. [2020-10-12 14:58:25,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1205 [2020-10-12 14:58:25,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:25,799 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:58:25,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:58:25,800 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:25,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:25,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1529927027, now seen corresponding path program 1 times [2020-10-12 14:58:25,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:25,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67041678] [2020-10-12 14:58:25,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:26,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:26,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:28,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:28,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1228 [2020-10-12 14:58:28,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:58:28,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2505 [2020-10-12 14:58:28,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1110 [2020-10-12 14:58:28,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:58:28,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:28,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:28,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:28,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:28,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:28,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:28,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:58:28,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:28,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:28,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:28,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:28,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:28,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:58:28,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:28,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-12 14:58:28,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:28,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:28,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:28,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:28,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:28,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:28,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:28,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:58:28,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:58:28,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:28,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:58:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:28,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:28,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:28,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:58:28,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:58:28,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:29,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:58:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:29,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:29,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:29,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:29,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:29,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:58:29,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:29,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:29,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:29,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:29,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:29,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:29,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:29,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:29,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:29,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:58:29,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:29,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:29,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:29,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:58:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:29,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:29,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:29,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 14:58:29,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:58:29,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:29,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:29,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:29,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 14:58:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:29,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:29,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:29,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-12 14:58:29,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:58:29,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:29,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:58:29,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:29,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-12 14:58:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:29,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:29,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:29,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 14:58:29,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:29,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:58:29,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:29,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:58:29,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-12 14:58:29,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 459 proven. 2 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2020-10-12 14:58:30,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67041678] [2020-10-12 14:58:30,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:30,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:58:30,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108565908] [2020-10-12 14:58:30,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:58:30,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:30,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:58:30,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:58:30,013 INFO L87 Difference]: Start difference. First operand 43371 states and 48823 transitions. Second operand 7 states. [2020-10-12 14:58:42,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:42,741 INFO L93 Difference]: Finished difference Result 98166 states and 112532 transitions. [2020-10-12 14:58:42,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:58:42,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1204 [2020-10-12 14:58:42,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:42,866 INFO L225 Difference]: With dead ends: 98166 [2020-10-12 14:58:42,866 INFO L226 Difference]: Without dead ends: 56213 [2020-10-12 14:58:42,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:58:42,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56213 states. [2020-10-12 14:58:43,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56213 to 54795. [2020-10-12 14:58:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54795 states. [2020-10-12 14:58:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54795 states to 54795 states and 61535 transitions. [2020-10-12 14:58:43,748 INFO L78 Accepts]: Start accepts. Automaton has 54795 states and 61535 transitions. Word has length 1204 [2020-10-12 14:58:43,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:43,749 INFO L479 AbstractCegarLoop]: Abstraction has 54795 states and 61535 transitions. [2020-10-12 14:58:43,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:58:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 54795 states and 61535 transitions. [2020-10-12 14:58:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1236 [2020-10-12 14:58:43,777 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:43,778 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:58:43,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:58:43,779 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:43,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:43,780 INFO L82 PathProgramCache]: Analyzing trace with hash -672141516, now seen corresponding path program 1 times [2020-10-12 14:58:43,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:43,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198079092] [2020-10-12 14:58:43,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:44,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:44,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:45,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:49,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:49,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1259 [2020-10-12 14:58:49,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:58:49,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-12 14:58:49,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:58:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1232 [2020-10-12 14:58:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 14:58:49,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:49,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:58:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:49,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:49,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:49,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:58:49,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:58:49,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:49,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:49,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:58:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:49,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:49,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:49,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-12 14:58:49,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:49,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-12 14:58:49,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:49,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:49,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:49,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:49,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:49,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:49,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:49,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-12 14:58:49,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:49,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:58:49,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:49,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:49,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:49,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:49,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:49,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-12 14:58:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:49,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:49,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:49,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-12 14:58:49,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:49,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:58:49,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:49,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:49,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:49,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-12 14:58:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:49,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:49,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:49,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-12 14:58:49,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:58:49,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:49,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:49,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:49,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-12 14:58:49,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:49,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:49,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:49,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-12 14:58:49,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:49,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:58:49,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:50,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-12 14:58:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:50,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:50,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:50,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-12 14:58:50,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:50,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 14:58:50,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:50,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:50,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:50,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 985 [2020-10-12 14:58:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:50,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:50,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:50,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:58:50,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:50,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:58:50,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:50,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:58:50,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:50,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:58:50,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:50,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1127 [2020-10-12 14:58:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:50,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:50,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:58:50,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-12 14:58:50,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:58:50,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:58:50,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:58:50,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:58:50,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:58:50,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:58:50,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:58:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1475 backedges. 107 proven. 5 refuted. 0 times theorem prover too weak. 1363 trivial. 0 not checked. [2020-10-12 14:58:50,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198079092] [2020-10-12 14:58:50,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:58:50,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 14:58:50,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671207602] [2020-10-12 14:58:50,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:58:50,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:58:50,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:58:50,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:58:50,733 INFO L87 Difference]: Start difference. First operand 54795 states and 61535 transitions. Second operand 5 states. [2020-10-12 14:58:58,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:58:58,554 INFO L93 Difference]: Finished difference Result 108174 states and 121701 transitions. [2020-10-12 14:58:58,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:58:58,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1235 [2020-10-12 14:58:58,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:58:58,646 INFO L225 Difference]: With dead ends: 108174 [2020-10-12 14:58:58,646 INFO L226 Difference]: Without dead ends: 54797 [2020-10-12 14:58:58,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:58:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54797 states. [2020-10-12 14:58:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54797 to 53377. [2020-10-12 14:58:59,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53377 states. [2020-10-12 14:58:59,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53377 states to 53377 states and 59227 transitions. [2020-10-12 14:58:59,291 INFO L78 Accepts]: Start accepts. Automaton has 53377 states and 59227 transitions. Word has length 1235 [2020-10-12 14:58:59,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:58:59,292 INFO L479 AbstractCegarLoop]: Abstraction has 53377 states and 59227 transitions. [2020-10-12 14:58:59,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:58:59,292 INFO L276 IsEmpty]: Start isEmpty. Operand 53377 states and 59227 transitions. [2020-10-12 14:58:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1298 [2020-10-12 14:58:59,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:58:59,314 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:58:59,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:58:59,315 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:58:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:58:59,315 INFO L82 PathProgramCache]: Analyzing trace with hash 719561648, now seen corresponding path program 1 times [2020-10-12 14:58:59,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:58:59,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646809553] [2020-10-12 14:58:59,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:58:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:58:59,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:58:59,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:59:01,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking...