/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=NARROWEST --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/seq-mthreaded/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 13:19:33,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 13:19:33,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 13:19:34,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 13:19:34,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 13:19:34,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 13:19:34,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 13:19:34,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 13:19:34,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 13:19:34,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 13:19:34,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 13:19:34,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 13:19:34,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 13:19:34,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 13:19:34,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 13:19:34,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 13:19:34,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 13:19:34,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 13:19:34,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 13:19:34,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 13:19:34,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 13:19:34,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 13:19:34,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 13:19:34,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 13:19:34,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 13:19:34,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 13:19:34,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 13:19:34,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 13:19:34,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 13:19:34,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 13:19:34,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 13:19:34,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 13:19:34,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 13:19:34,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 13:19:34,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 13:19:34,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 13:19:34,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 13:19:34,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 13:19:34,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 13:19:34,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 13:19:34,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 13:19:34,102 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 [2020-10-13 13:19:34,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 13:19:34,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 13:19:34,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 13:19:34,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 13:19:34,142 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 13:19:34,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 13:19:34,143 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 13:19:34,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 13:19:34,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 13:19:34,143 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 13:19:34,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 13:19:34,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 13:19:34,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 13:19:34,145 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 13:19:34,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 13:19:34,145 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 13:19:34,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 13:19:34,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 13:19:34,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 13:19:34,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 13:19:34,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 13:19:34,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 13:19:34,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 13:19:34,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 13:19:34,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 13:19:34,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 13:19:34,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 13:19:34,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 13:19:34,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 13:19:34,148 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 13:19:34,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 13:19:34,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 13:19:34,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 13:19:34,441 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 13:19:34,442 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 13:19:34,442 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-13 13:19:34,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b01a22216/1fb66b7dc8584a01ac5501755d89b081/FLAG8dffb11c3 [2020-10-13 13:19:35,132 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 13:19:35,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-13 13:19:35,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b01a22216/1fb66b7dc8584a01ac5501755d89b081/FLAG8dffb11c3 [2020-10-13 13:19:35,327 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b01a22216/1fb66b7dc8584a01ac5501755d89b081 [2020-10-13 13:19:35,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 13:19:35,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 13:19:35,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 13:19:35,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 13:19:35,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 13:19:35,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:19:35" (1/1) ... [2020-10-13 13:19:35,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0619bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:35, skipping insertion in model container [2020-10-13 13:19:35,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:19:35" (1/1) ... [2020-10-13 13:19:35,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 13:19:35,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 13:19:36,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:19:36,032 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 13:19:36,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 13:19:36,231 INFO L208 MainTranslator]: Completed translation [2020-10-13 13:19:36,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36 WrapperNode [2020-10-13 13:19:36,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 13:19:36,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 13:19:36,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 13:19:36,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 13:19:36,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (1/1) ... [2020-10-13 13:19:36,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (1/1) ... [2020-10-13 13:19:36,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (1/1) ... [2020-10-13 13:19:36,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (1/1) ... [2020-10-13 13:19:36,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (1/1) ... [2020-10-13 13:19:36,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (1/1) ... [2020-10-13 13:19:36,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (1/1) ... [2020-10-13 13:19:36,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 13:19:36,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 13:19:36,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 13:19:36,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 13:19:36,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (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 [2020-10-13 13:19:36,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 13:19:36,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 13:19:36,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 13:19:36,468 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-13 13:19:36,468 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-13 13:19:36,468 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-13 13:19:36,469 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-13 13:19:36,470 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-13 13:19:36,470 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-13 13:19:36,470 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-13 13:19:36,470 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 13:19:36,470 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-13 13:19:36,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 13:19:36,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 13:19:36,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-13 13:19:36,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 13:19:36,472 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-13 13:19:36,472 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 13:19:36,472 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 13:19:36,473 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-13 13:19:36,473 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-13 13:19:36,473 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-13 13:19:36,473 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-13 13:19:36,474 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-13 13:19:36,474 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-13 13:19:36,475 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-13 13:19:36,475 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-13 13:19:36,475 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-13 13:19:36,475 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 13:19:36,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 13:19:36,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 13:19:38,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 13:19:38,540 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 13:19:38,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:19:38 BoogieIcfgContainer [2020-10-13 13:19:38,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 13:19:38,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 13:19:38,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 13:19:38,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 13:19:38,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:19:35" (1/3) ... [2020-10-13 13:19:38,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43152a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:19:38, skipping insertion in model container [2020-10-13 13:19:38,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:19:36" (2/3) ... [2020-10-13 13:19:38,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43152a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:19:38, skipping insertion in model container [2020-10-13 13:19:38,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:19:38" (3/3) ... [2020-10-13 13:19:38,566 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.2.ufo.UNBOUNDED.pals.c [2020-10-13 13:19:38,576 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 13:19:38,588 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 13:19:38,602 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 13:19:38,632 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 13:19:38,633 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 13:19:38,633 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 13:19:38,633 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 13:19:38,633 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 13:19:38,633 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 13:19:38,633 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 13:19:38,633 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 13:19:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states. [2020-10-13 13:19:38,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 13:19:38,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:19:38,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:19:38,694 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:19:38,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:19:38,701 INFO L82 PathProgramCache]: Analyzing trace with hash 906450296, now seen corresponding path program 1 times [2020-10-13 13:19:38,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:19:38,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263616638] [2020-10-13 13:19:38,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:19:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:39,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:40,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:40,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 13:19:40,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:40,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 911 [2020-10-13 13:19:40,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:40,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:40,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-13 13:19:40,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:40,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 13:19:41,031 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:19:41,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:19:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:19:41,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 13:19:41,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:41,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:41,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:19:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:19:41,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-13 13:19:41,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:41,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:19:41,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:19:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:19:41,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:19:41,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:19:41,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:19:41,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:19:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:41,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:19:41,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:41,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:19:41,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 13:19:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:41,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 13:19:41,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:19:41,765 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-10-13 13:19:41,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 13:19:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:41,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:19:41,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:41,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:19:41,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 13:19:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:41,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:19:41,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:41,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:19:41,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:19:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:41,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 13:19:41,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:41,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:19:41,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-13 13:19:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:41,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:41,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:41,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:41,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:41,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:41,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:41,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:41,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:41,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:19:42,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:19:42,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263616638] [2020-10-13 13:19:42,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:19:42,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 13:19:42,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081576716] [2020-10-13 13:19:42,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 13:19:42,129 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:19:42,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 13:19:42,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-13 13:19:42,148 INFO L87 Difference]: Start difference. First operand 747 states. Second operand 8 states. [2020-10-13 13:19:44,737 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:19:45,335 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:19:45,886 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:19:46,532 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:19:47,089 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:19:47,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:19:47,953 INFO L93 Difference]: Finished difference Result 989 states and 1744 transitions. [2020-10-13 13:19:47,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 13:19:47,957 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 182 [2020-10-13 13:19:47,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:19:47,987 INFO L225 Difference]: With dead ends: 989 [2020-10-13 13:19:47,988 INFO L226 Difference]: Without dead ends: 797 [2020-10-13 13:19:47,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-13 13:19:48,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-13 13:19:48,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 742. [2020-10-13 13:19:48,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-13 13:19:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1341 transitions. [2020-10-13 13:19:48,179 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1341 transitions. Word has length 182 [2020-10-13 13:19:48,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:19:48,180 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 1341 transitions. [2020-10-13 13:19:48,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 13:19:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1341 transitions. [2020-10-13 13:19:48,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-13 13:19:48,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:19:48,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:19:48,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 13:19:48,188 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:19:48,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:19:48,189 INFO L82 PathProgramCache]: Analyzing trace with hash 553361914, now seen corresponding path program 1 times [2020-10-13 13:19:48,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:19:48,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113072002] [2020-10-13 13:19:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:19:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:48,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:50,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:50,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-13 13:19:50,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:50,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2558 [2020-10-13 13:19:50,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 13:19:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-13 13:19:50,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:19:50,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:51,794 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:19:51,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:19:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:51,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:51,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:51,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:19:51,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:51,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 13:19:51,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:51,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:51,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:51,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:51,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:51,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:19:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:51,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 13:19:52,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 616 [2020-10-13 13:19:52,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:52,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:19:52,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-13 13:19:52,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-13 13:19:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:19:52,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:19:52,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:19:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 13:19:52,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:19:52,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:19:52,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 13:19:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:52,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:19:52,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:52,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:52,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:52,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:19:52,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-13 13:19:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:52,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:19:52,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:52,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 13:19:52,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-13 13:19:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:52,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:52,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:52,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-13 13:19:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:52,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:19:52,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:52,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:52,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:52,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-13 13:19:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:52,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:52,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:52,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:52,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:19:52,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:52,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:52,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-13 13:19:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:19:53,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:19:53,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:19:53,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:19:53,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:19:53,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:19:53,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:19:53,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:19:53,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:19:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:19:53,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:19:53,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:19:53,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113072002] [2020-10-13 13:19:53,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:19:53,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-13 13:19:53,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042912202] [2020-10-13 13:19:53,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 13:19:53,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:19:53,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 13:19:53,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-13 13:19:53,100 INFO L87 Difference]: Start difference. First operand 742 states and 1341 transitions. Second operand 14 states. [2020-10-13 13:20:01,168 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-13 13:20:01,892 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2020-10-13 13:20:02,732 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:20:03,404 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-13 13:20:04,534 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:05,233 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:05,982 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:06,772 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:07,514 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:08,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:20:08,469 INFO L93 Difference]: Finished difference Result 987 states and 1736 transitions. [2020-10-13 13:20:08,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 13:20:08,478 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 182 [2020-10-13 13:20:08,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:20:08,486 INFO L225 Difference]: With dead ends: 987 [2020-10-13 13:20:08,486 INFO L226 Difference]: Without dead ends: 797 [2020-10-13 13:20:08,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-13 13:20:08,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2020-10-13 13:20:08,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 742. [2020-10-13 13:20:08,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2020-10-13 13:20:08,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1281 transitions. [2020-10-13 13:20:08,657 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1281 transitions. Word has length 182 [2020-10-13 13:20:08,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:20:08,658 INFO L479 AbstractCegarLoop]: Abstraction has 742 states and 1281 transitions. [2020-10-13 13:20:08,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 13:20:08,658 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1281 transitions. [2020-10-13 13:20:08,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-13 13:20:08,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:20:08,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:20:08,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 13:20:08,664 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:20:08,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:20:08,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1577718157, now seen corresponding path program 1 times [2020-10-13 13:20:08,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:20:08,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1566964331] [2020-10-13 13:20:08,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:20:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:09,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:09,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:10,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:11,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:13,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:13,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-13 13:20:13,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 13:20:13,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-13 13:20:13,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-13 13:20:13,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 13:20:13,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:14,763 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:20:14,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:20:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:14,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:14,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:14,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:20:14,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:14,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 13:20:14,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:14,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:14,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:14,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:14,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:14,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:20:14,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:14,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:15,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:15,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:20:15,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:15,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-13 13:20:15,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:15,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-13 13:20:15,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:15,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:20:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:15,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:15,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:15,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:20:15,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:15,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:20:15,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:15,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:20:15,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:15,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:20:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:15,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:15,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:15,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:15,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:15,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:20:15,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:20:15,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:15,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:15,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-13 13:20:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:15,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:15,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:15,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:15,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:20:15,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:15,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:15,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:15,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-13 13:20:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:15,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:15,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:15,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:15,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:20:15,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:15,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:15,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:15,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-13 13:20:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:15,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:15,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:15,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:15,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:15,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:20:15,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:15,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:15,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:15,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-13 13:20:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:15,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:15,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:15,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:15,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:15,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:20:15,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:15,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:15,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:15,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-13 13:20:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:15,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:15,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:15,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:15,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:15,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:20:15,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:15,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:20:15,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:15,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:15,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:20:15,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1566964331] [2020-10-13 13:20:15,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:20:15,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:20:15,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539105167] [2020-10-13 13:20:15,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:20:15,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:20:15,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:20:15,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:20:15,863 INFO L87 Difference]: Start difference. First operand 742 states and 1281 transitions. Second operand 11 states. [2020-10-13 13:20:16,542 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-13 13:20:22,641 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:22,927 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:20:23,403 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:20:23,699 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:24,243 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:20:24,650 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:25,277 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:20:25,693 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:26,270 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:20:26,691 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:28,264 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-13 13:20:28,757 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:20:28,998 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:20:29,279 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:20:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:20:29,450 INFO L93 Difference]: Finished difference Result 1230 states and 2072 transitions. [2020-10-13 13:20:29,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:20:29,451 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 241 [2020-10-13 13:20:29,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:20:29,460 INFO L225 Difference]: With dead ends: 1230 [2020-10-13 13:20:29,460 INFO L226 Difference]: Without dead ends: 1046 [2020-10-13 13:20:29,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:20:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-10-13 13:20:29,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 927. [2020-10-13 13:20:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-10-13 13:20:29,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1579 transitions. [2020-10-13 13:20:29,629 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1579 transitions. Word has length 241 [2020-10-13 13:20:29,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:20:29,631 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1579 transitions. [2020-10-13 13:20:29,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:20:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1579 transitions. [2020-10-13 13:20:29,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-13 13:20:29,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:20:29,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:20:29,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 13:20:29,638 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:20:29,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:20:29,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1674493839, now seen corresponding path program 1 times [2020-10-13 13:20:29,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:20:29,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038117863] [2020-10-13 13:20:29,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:20:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:29,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:30,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:30,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:30,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:31,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:34,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:34,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-10-13 13:20:34,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 13:20:34,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 13:20:34,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:34,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-13 13:20:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-13 13:20:34,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 13:20:34,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:35,595 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:20:35,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:20:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:35,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:35,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:35,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:20:35,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:35,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 13:20:35,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:20:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:35,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:20:35,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:35,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:20:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:35,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:36,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:36,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:20:36,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:36,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-10-13 13:20:36,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 13:20:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:36,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-13 13:20:36,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:36,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:20:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:36,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:36,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:36,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:20:36,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:20:36,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:36,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:20:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:20:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:37,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:20:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:37,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:37,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:37,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:20:37,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:37,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 13:20:37,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:37,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:37,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:20:37,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:20:37,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:37,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:20:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:37,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:37,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:37,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:37,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 13:20:37,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:37,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:37,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:20:37,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:37,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:37,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-13 13:20:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:37,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:37,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:37,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:37,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:37,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 13:20:37,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:37,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:37,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:20:37,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:37,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 13:20:37,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-13 13:20:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:37,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:37,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:37,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:37,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:37,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 13:20:37,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:20:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:37,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:37,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 13:20:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:37,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:37,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:37,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:37,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 13:20:37,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:20:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:20:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:20:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:37,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-13 13:20:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:20:37,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:20:37,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:20:37,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:20:37,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:20:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:20:37,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:20:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:20:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 13:20:37,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:20:37,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:20:37,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:20:37,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038117863] [2020-10-13 13:20:37,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:20:37,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-13 13:20:37,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150087554] [2020-10-13 13:20:37,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 13:20:37,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:20:37,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 13:20:37,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2020-10-13 13:20:37,712 INFO L87 Difference]: Start difference. First operand 927 states and 1579 transitions. Second operand 19 states. [2020-10-13 13:20:38,551 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-13 13:20:45,992 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:20:46,591 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-13 13:20:47,223 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-13 13:20:47,910 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2020-10-13 13:20:48,357 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:20:48,882 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:49,149 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:20:49,635 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:20:50,243 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:20:50,587 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:20:51,105 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:20:51,460 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:51,899 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:20:52,218 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 13:20:52,439 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:20:53,094 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:20:53,499 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:54,041 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:20:54,426 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:20:54,690 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-13 13:20:54,954 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:20:55,283 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:20:55,865 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:20:56,356 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:20:57,148 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:20:57,422 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 13:20:57,686 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:20:57,998 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:20:58,284 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:20:58,532 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:20:59,698 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:20:59,913 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:01,226 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-13 13:21:01,445 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:21:02,111 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2020-10-13 13:21:02,337 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:03,063 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-13 13:21:03,305 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:21:04,007 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2020-10-13 13:21:05,783 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:21:06,320 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:21:07,115 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:21:07,376 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-13 13:21:07,694 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:21:07,964 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:21:08,321 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:21:08,585 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 13:21:08,864 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:21:09,161 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:09,495 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:21:11,611 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:12,131 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:21:12,391 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-13 13:21:12,660 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:21:12,937 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:21:13,265 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:13,580 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:21:13,842 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 13:21:14,129 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:21:14,420 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:16,654 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-13 13:21:16,979 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:21:17,293 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:17,621 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-13 13:21:18,005 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-13 13:21:18,439 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:18,765 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:21:19,139 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 13:21:21,388 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:21:21,757 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 13:21:22,133 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 13:21:22,480 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-13 13:21:22,776 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-13 13:21:23,205 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:21:23,548 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:21:23,878 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 13:21:26,119 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-13 13:21:26,453 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-13 13:21:26,812 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:21:27,169 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-13 13:21:27,764 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:28,068 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:21:34,876 INFO L93 Difference]: Finished difference Result 5913 states and 9837 transitions. [2020-10-13 13:21:34,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2020-10-13 13:21:34,878 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 245 [2020-10-13 13:21:34,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:21:34,914 INFO L225 Difference]: With dead ends: 5913 [2020-10-13 13:21:34,914 INFO L226 Difference]: Without dead ends: 5544 [2020-10-13 13:21:34,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5347 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=2818, Invalid=11944, Unknown=0, NotChecked=0, Total=14762 [2020-10-13 13:21:34,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5544 states. [2020-10-13 13:21:35,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5544 to 4218. [2020-10-13 13:21:35,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4218 states. [2020-10-13 13:21:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 6974 transitions. [2020-10-13 13:21:35,345 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 6974 transitions. Word has length 245 [2020-10-13 13:21:35,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:21:35,346 INFO L479 AbstractCegarLoop]: Abstraction has 4218 states and 6974 transitions. [2020-10-13 13:21:35,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 13:21:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 6974 transitions. [2020-10-13 13:21:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-13 13:21:35,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:21:35,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:21:35,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 13:21:35,355 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:21:35,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:21:35,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1979972396, now seen corresponding path program 1 times [2020-10-13 13:21:35,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:21:35,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010775513] [2020-10-13 13:21:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:21:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:35,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:35,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:35,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:36,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:36,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:38,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:39,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:39,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:40,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:40,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-13 13:21:40,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 13:21:40,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-13 13:21:40,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:40,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:21:40,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-13 13:21:40,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 13:21:40,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:41,312 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:21:41,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:21:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:41,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:41,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:41,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:21:41,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:41,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:21:41,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:41,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:41,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:41,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:41,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:21:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:41,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:41,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:41,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:21:41,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:41,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-13 13:21:41,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:41,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-13 13:21:41,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:41,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:21:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:41,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:41,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:41,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:21:41,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:41,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:21:41,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:41,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:41,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:21:41,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:41,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:21:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:41,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:41,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:41,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:21:41,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:41,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 13:21:41,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:21:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:21:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:21:41,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:41,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:21:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:41,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:41,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:41,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:41,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:21:41,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:21:41,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:21:41,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 13:21:41,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:41,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-13 13:21:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:41,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:41,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:41,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:41,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:21:41,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:41,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:41,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:41,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-13 13:21:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:42,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:42,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:42,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:42,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:42,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:21:42,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:42,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:42,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:42,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:42,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:42,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-13 13:21:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:42,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:42,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:42,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:21:42,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:21:42,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:21:42,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:42,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:42,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-13 13:21:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:42,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:42,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:21:42,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:21:42,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:21:42,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:21:42,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:21:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:21:42,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-13 13:21:42,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:21:42,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:21:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:21:42,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010775513] [2020-10-13 13:21:42,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:21:42,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 13:21:42,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154819332] [2020-10-13 13:21:42,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 13:21:42,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:21:42,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 13:21:42,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 13:21:42,135 INFO L87 Difference]: Start difference. First operand 4218 states and 6974 transitions. Second operand 11 states. [2020-10-13 13:21:42,810 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-13 13:21:49,197 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:49,791 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:50,104 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-13 13:21:50,626 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:50,876 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:51,624 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:51,953 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:52,731 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-13 13:21:53,092 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:54,551 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:21:55,034 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-13 13:21:55,660 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2020-10-13 13:21:55,895 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-13 13:21:56,222 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:21:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:21:56,544 INFO L93 Difference]: Finished difference Result 12925 states and 21079 transitions. [2020-10-13 13:21:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 13:21:56,545 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-10-13 13:21:56,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:21:56,602 INFO L225 Difference]: With dead ends: 12925 [2020-10-13 13:21:56,602 INFO L226 Difference]: Without dead ends: 9265 [2020-10-13 13:21:56,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2020-10-13 13:21:56,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9265 states. [2020-10-13 13:21:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9265 to 7227. [2020-10-13 13:21:57,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7227 states. [2020-10-13 13:21:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 11902 transitions. [2020-10-13 13:21:57,282 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 11902 transitions. Word has length 246 [2020-10-13 13:21:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:21:57,283 INFO L479 AbstractCegarLoop]: Abstraction has 7227 states and 11902 transitions. [2020-10-13 13:21:57,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 13:21:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 11902 transitions. [2020-10-13 13:21:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-13 13:21:57,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:21:57,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:21:57,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 13:21:57,291 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:21:57,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:21:57,292 INFO L82 PathProgramCache]: Analyzing trace with hash 313138448, now seen corresponding path program 1 times [2020-10-13 13:21:57,292 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:21:57,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113327127] [2020-10-13 13:21:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:21:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:21:57,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:57,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:57,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:58,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:21:58,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:01,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:01,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:02,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:02,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:02,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:02,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-13 13:22:02,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 13:22:02,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5050 [2020-10-13 13:22:02,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:02,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:22:02,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-13 13:22:02,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 13:22:02,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,213 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:22:03,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:22:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:22:03,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 13:22:03,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:03,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:22:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:22:03,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-13 13:22:03,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:22:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 13:22:03,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:22:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:22:03,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:22:03,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:22:03,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:22:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:03,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:22:03,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:22:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:22:03,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:22:03,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:22:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:03,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 13:22:03,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:03,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:03,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:03,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-13 13:22:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:03,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:22:03,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:22:03,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-13 13:22:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:03,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:22:03,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:03,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:03,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:22:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-13 13:22:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:03,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:22:03,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:03,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:03,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:22:03,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:03,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-13 13:22:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:03,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:03,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:03,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 13:22:03,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:22:03,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 13:22:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:22:03,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:04,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:22:04,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113327127] [2020-10-13 13:22:04,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:22:04,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:22:04,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725878257] [2020-10-13 13:22:04,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:22:04,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:22:04,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:22:04,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:22:04,035 INFO L87 Difference]: Start difference. First operand 7227 states and 11902 transitions. Second operand 12 states. [2020-10-13 13:22:04,733 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:22:11,124 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:22:11,541 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:12,069 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:12,273 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:12,521 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:12,929 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:13,138 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:13,874 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:14,337 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:14,549 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:15,081 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:15,767 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:16,000 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:16,536 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:17,391 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:17,631 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:19,060 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:22:19,720 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-13 13:22:21,062 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 13:22:21,452 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-13 13:22:21,946 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 178 [2020-10-13 13:22:22,580 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 182 [2020-10-13 13:22:23,932 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:24,289 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:24,523 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:25,656 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:25,906 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:26,836 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:27,129 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:28,106 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:28,393 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:29,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:22:29,503 INFO L93 Difference]: Finished difference Result 24799 states and 40541 transitions. [2020-10-13 13:22:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-13 13:22:29,512 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 250 [2020-10-13 13:22:29,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:22:29,593 INFO L225 Difference]: With dead ends: 24799 [2020-10-13 13:22:29,594 INFO L226 Difference]: Without dead ends: 18130 [2020-10-13 13:22:29,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=427, Invalid=1553, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 13:22:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18130 states. [2020-10-13 13:22:31,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18130 to 13982. [2020-10-13 13:22:31,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13982 states. [2020-10-13 13:22:31,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13982 states to 13982 states and 23025 transitions. [2020-10-13 13:22:31,323 INFO L78 Accepts]: Start accepts. Automaton has 13982 states and 23025 transitions. Word has length 250 [2020-10-13 13:22:31,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:22:31,324 INFO L479 AbstractCegarLoop]: Abstraction has 13982 states and 23025 transitions. [2020-10-13 13:22:31,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:22:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 13982 states and 23025 transitions. [2020-10-13 13:22:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-13 13:22:31,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:22:31,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:22:31,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 13:22:31,336 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:22:31,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:22:31,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1619023998, now seen corresponding path program 1 times [2020-10-13 13:22:31,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:22:31,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102846260] [2020-10-13 13:22:31,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:22:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:31,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:31,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:31,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:32,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:32,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:33,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:33,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:33,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:34,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:36,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:36,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-13 13:22:36,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 13:22:36,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-13 13:22:36,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 13:22:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-10-13 13:22:36,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 13:22:36,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,155 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:22:37,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:22:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:22:37,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 13:22:37,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:22:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:37,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:22:37,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:22:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:22:37,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-10-13 13:22:37,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 13:22:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:37,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 13:22:37,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:22:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:22:37,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:22:37,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:37,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:22:37,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:22:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:37,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 13:22:37,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:37,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:37,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:22:37,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:22:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:22:37,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 13:22:37,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:22:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:22:37,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 13:22:37,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-13 13:22:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:37,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 13:22:37,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:37,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:37,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:22:37,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-13 13:22:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:37,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:22:37,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:37,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:37,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:22:37,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-13 13:22:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:22:37,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:22:37,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:22:37,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 13:22:37,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:37,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-13 13:22:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:22:37,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:22:37,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:22:37,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 13:22:37,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:22:37,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 13:22:37,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:22:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:22:37,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 13:22:37,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 13:22:37,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:22:38,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:22:38,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102846260] [2020-10-13 13:22:38,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:22:38,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 13:22:38,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106777029] [2020-10-13 13:22:38,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 13:22:38,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:22:38,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 13:22:38,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-13 13:22:38,096 INFO L87 Difference]: Start difference. First operand 13982 states and 23025 transitions. Second operand 12 states. [2020-10-13 13:22:38,750 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:22:45,803 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2020-10-13 13:22:46,264 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:47,116 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 176 [2020-10-13 13:22:47,680 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:47,893 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:48,199 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:48,516 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:48,730 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:49,488 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:49,981 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:50,210 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:50,987 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:51,520 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:51,751 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:53,276 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2020-10-13 13:22:53,936 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 358 [2020-10-13 13:22:55,125 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-13 13:22:55,467 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:55,722 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:55,946 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-13 13:22:56,996 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-13 13:22:57,375 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 13:22:57,838 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 180 [2020-10-13 13:22:58,127 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 13:22:59,346 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:22:59,613 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:22:59,871 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:00,745 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:00,989 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:23:02,038 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-13 13:23:02,325 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-13 13:23:03,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 13:23:03,560 INFO L93 Difference]: Finished difference Result 51459 states and 84171 transitions. [2020-10-13 13:23:03,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-13 13:23:03,561 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 251 [2020-10-13 13:23:03,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 13:23:03,715 INFO L225 Difference]: With dead ends: 51459 [2020-10-13 13:23:03,716 INFO L226 Difference]: Without dead ends: 38035 [2020-10-13 13:23:03,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=426, Invalid=1554, Unknown=0, NotChecked=0, Total=1980 [2020-10-13 13:23:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38035 states. [2020-10-13 13:23:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38035 to 29253. [2020-10-13 13:23:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29253 states. [2020-10-13 13:23:05,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29253 states to 29253 states and 48227 transitions. [2020-10-13 13:23:05,647 INFO L78 Accepts]: Start accepts. Automaton has 29253 states and 48227 transitions. Word has length 251 [2020-10-13 13:23:05,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 13:23:05,648 INFO L479 AbstractCegarLoop]: Abstraction has 29253 states and 48227 transitions. [2020-10-13 13:23:05,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 13:23:05,648 INFO L276 IsEmpty]: Start isEmpty. Operand 29253 states and 48227 transitions. [2020-10-13 13:23:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-13 13:23:05,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 13:23:05,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 13:23:05,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 13:23:05,661 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 13:23:05,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 13:23:05,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1167861919, now seen corresponding path program 1 times [2020-10-13 13:23:05,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 13:23:05,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844052407] [2020-10-13 13:23:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 13:23:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:05,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:06,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:06,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:06,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:06,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:07,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:10,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:10,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:10,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-13 13:23:10,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 13:23:10,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-13 13:23:10,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-10-13 13:23:10,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 13:23:10,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:11,505 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2020-10-13 13:23:11,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 13:23:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:11,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:11,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:11,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 13:23:11,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:11,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 13:23:11,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:11,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:11,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 13:23:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:11,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:11,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:11,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-13 13:23:11,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:11,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 13:23:11,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:11,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-13 13:23:11,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:11,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-13 13:23:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:11,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:11,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:11,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 13:23:11,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:11,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:23:11,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 13:23:11,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:11,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 13:23:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:11,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:11,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:11,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 13:23:11,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:11,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 13:23:11,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 13:23:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 13:23:11,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 13:23:11,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:11,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-13 13:23:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:11,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:11,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:11,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 13:23:11,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 13:23:11,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 13:23:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 13:23:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 13:23:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:11,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-13 13:23:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:11,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:11,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:11,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:11,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:11,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:23:11,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:11,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:11,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:23:11,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:11,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:11,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-13 13:23:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:12,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:12,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:12,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:12,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:12,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 13:23:12,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:12,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:12,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:23:12,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:12,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:12,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-13 13:23:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:12,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:12,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:12,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:12,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 13:23:12,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:23:12,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:12,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:12,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-10-13 13:23:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 13:23:12,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 13:23:12,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 13:23:12,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 13:23:12,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 13:23:12,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 13:23:12,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 13:23:12,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 13:23:12,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 13:23:12,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 13:23:12,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 13:23:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 13:23:12,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844052407] [2020-10-13 13:23:12,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 13:23:12,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 13:23:12,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956283913] [2020-10-13 13:23:12,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 13:23:12,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 13:23:12,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 13:23:12,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-13 13:23:12,121 INFO L87 Difference]: Start difference. First operand 29253 states and 48227 transitions. Second operand 10 states. [2020-10-13 13:23:12,774 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2020-10-13 13:23:19,315 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 173