/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=DEEPEST --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 language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:11:57,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:11:57,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:11:57,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:11:57,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:11:57,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:11:57,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:11:57,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:11:57,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:11:57,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:11:57,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:11:57,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:11:57,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:11:57,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:11:57,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:11:57,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:11:57,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:11:57,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:11:57,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:11:57,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:11:57,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:11:57,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:11:57,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:11:57,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:11:57,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:11:57,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:11:57,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:11:57,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:11:57,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:11:57,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:11:57,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:11:57,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:11:57,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:11:57,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:11:57,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:11:57,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:11:57,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:11:57,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:11:57,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:11:57,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:11:57,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:11:57,942 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 [2020-10-27 23:11:57,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:11:57,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:11:57,994 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:11:57,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:11:57,995 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:11:57,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:11:57,995 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:11:57,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:11:57,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:11:57,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:11:57,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:11:57,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:11:57,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:11:57,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:11:57,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:11:57,999 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:11:57,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:11:57,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:11:57,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:11:58,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:11:58,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:11:58,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:11:58,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:11:58,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:11:58,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:11:58,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:11:58,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:11:58,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:11:58,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:11:58,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:11:58,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:11:58,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:11:58,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:11:58,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:11:58,475 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:11:58,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-27 23:11:58,555 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c3633330/0c31d7883e534bb78eba26c1a16a1374/FLAG982ed5674 [2020-10-27 23:11:59,158 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:11:59,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-27 23:11:59,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c3633330/0c31d7883e534bb78eba26c1a16a1374/FLAG982ed5674 [2020-10-27 23:11:59,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c3633330/0c31d7883e534bb78eba26c1a16a1374 [2020-10-27 23:11:59,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:11:59,458 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:11:59,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:11:59,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:11:59,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:11:59,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:11:59" (1/1) ... [2020-10-27 23:11:59,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625e06f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:11:59, skipping insertion in model container [2020-10-27 23:11:59,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:11:59" (1/1) ... [2020-10-27 23:11:59,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:11:59,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:11:59,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:12:00,014 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:12:00,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:12:00,194 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:12:00,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00 WrapperNode [2020-10-27 23:12:00,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:12:00,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:12:00,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:12:00,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:12:00,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (1/1) ... [2020-10-27 23:12:00,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (1/1) ... [2020-10-27 23:12:00,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (1/1) ... [2020-10-27 23:12:00,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (1/1) ... [2020-10-27 23:12:00,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (1/1) ... [2020-10-27 23:12:00,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (1/1) ... [2020-10-27 23:12:00,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (1/1) ... [2020-10-27 23:12:00,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:12:00,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:12:00,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:12:00,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:12:00,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (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 [2020-10-27 23:12:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:12:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:12:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:12:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:12:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:12:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:12:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:12:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:12:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:12:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:12:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:12:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:12:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:12:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:12:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:12:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:12:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:12:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 23:12:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:12:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:12:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:12:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:12:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:12:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:12:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:12:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:12:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:12:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:12:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:12:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:12:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:12:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:12:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:12:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:12:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:12:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:12:02,019 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:12:02,019 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:12:02,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:12:02 BoogieIcfgContainer [2020-10-27 23:12:02,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:12:02,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:12:02,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:12:02,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:12:02,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:11:59" (1/3) ... [2020-10-27 23:12:02,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f6f14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:12:02, skipping insertion in model container [2020-10-27 23:12:02,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:12:00" (2/3) ... [2020-10-27 23:12:02,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f6f14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:12:02, skipping insertion in model container [2020-10-27 23:12:02,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:12:02" (3/3) ... [2020-10-27 23:12:02,030 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.UNBOUNDED.pals.c [2020-10-27 23:12:02,041 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:12:02,046 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:12:02,059 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:12:02,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:12:02,087 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:12:02,088 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:12:02,088 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:12:02,088 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:12:02,088 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:12:02,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:12:02,088 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:12:02,113 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2020-10-27 23:12:02,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 23:12:02,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:02,131 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] [2020-10-27 23:12:02,132 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:02,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:02,138 INFO L82 PathProgramCache]: Analyzing trace with hash 2135324040, now seen corresponding path program 1 times [2020-10-27 23:12:02,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:02,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822674794] [2020-10-27 23:12:02,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:02,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:03,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:03,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:12:03,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:03,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-27 23:12:03,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 23:12:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:12:03,877 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:03,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:03,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:03,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:03,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:03,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 23:12:03,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:03,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:03,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:03,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:04,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:04,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 23:12:04,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:04,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 23:12:04,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:04,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:04,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:12:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:04,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:04,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:04,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:04,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:04,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:12:04,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:12:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:04,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:04,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:12:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:04,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:04,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:04,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:04,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:04,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:12:04,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:04,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:04,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:04,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:12:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:04,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:04,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:04,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:04,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:04,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:12:04,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:04,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:04,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:04,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:04,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:04,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:12:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:04,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:04,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:04,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:04,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:04,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:12:04,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:04,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:04,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:04,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:12:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:04,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:04,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:04,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:04,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:04,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:12:04,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:04,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:04,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:04,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:04,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:12:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:04,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:04,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:04,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:12:04,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:04,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:12:04,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:12:04,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:04,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:04,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:04,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822674794] [2020-10-27 23:12:04,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:04,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 23:12:04,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136334338] [2020-10-27 23:12:04,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 23:12:04,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:04,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 23:12:04,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 23:12:04,370 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 7 states. [2020-10-27 23:12:05,493 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:05,918 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:06,413 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:06,893 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:07,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:07,425 INFO L93 Difference]: Finished difference Result 565 states and 949 transitions. [2020-10-27 23:12:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 23:12:07,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-27 23:12:07,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:07,445 INFO L225 Difference]: With dead ends: 565 [2020-10-27 23:12:07,445 INFO L226 Difference]: Without dead ends: 401 [2020-10-27 23:12:07,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:12:07,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-27 23:12:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-27 23:12:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-27 23:12:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 620 transitions. [2020-10-27 23:12:07,562 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 620 transitions. Word has length 109 [2020-10-27 23:12:07,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:07,563 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 620 transitions. [2020-10-27 23:12:07,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 23:12:07,563 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 620 transitions. [2020-10-27 23:12:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 23:12:07,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:07,569 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] [2020-10-27 23:12:07,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:12:07,570 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:07,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:07,570 INFO L82 PathProgramCache]: Analyzing trace with hash -231370554, now seen corresponding path program 1 times [2020-10-27 23:12:07,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:07,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659408454] [2020-10-27 23:12:07,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:07,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:09,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:09,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 23:12:09,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:09,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1392 [2020-10-27 23:12:09,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:12:09,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 23:12:09,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:12:09,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:09,768 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:09,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:09,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:09,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:09,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:09,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:09,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:12:09,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:09,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:09,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:09,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:09,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:09,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:09,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:10,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:10,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 23:12:10,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:10,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-27 23:12:10,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 23:12:10,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:10,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 23:12:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:10,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:10,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:10,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:10,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:10,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:12:10,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:12:10,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:10,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:10,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 23:12:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:10,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:10,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:10,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:10,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:10,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:12:10,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:10,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:10,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:10,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:10,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:10,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:12:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:10,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:10,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:10,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:10,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:10,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:12:10,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:12:10,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:12:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:10,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:10,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:10,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:10,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:10,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:12:10,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:10,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:10,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:12:10,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:12:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:10,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:10,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:10,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:10,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:10,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:12:10,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:10,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:12:10,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:10,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:12:10,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:12:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:10,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:10,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:10,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:12:10,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:10,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:12:10,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:12:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:10,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:10,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:10,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659408454] [2020-10-27 23:12:10,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:10,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 23:12:10,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983494029] [2020-10-27 23:12:10,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 23:12:10,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:10,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 23:12:10,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:12:10,743 INFO L87 Difference]: Start difference. First operand 361 states and 620 transitions. Second operand 13 states. [2020-10-27 23:12:13,523 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:14,186 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:14,905 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:15,505 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-27 23:12:16,344 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:17,049 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:17,773 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:18,426 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:19,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:19,345 INFO L93 Difference]: Finished difference Result 560 states and 937 transitions. [2020-10-27 23:12:19,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 23:12:19,346 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 23:12:19,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:19,355 INFO L225 Difference]: With dead ends: 560 [2020-10-27 23:12:19,356 INFO L226 Difference]: Without dead ends: 401 [2020-10-27 23:12:19,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:12:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-27 23:12:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-27 23:12:19,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-27 23:12:19,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 574 transitions. [2020-10-27 23:12:19,439 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 574 transitions. Word has length 109 [2020-10-27 23:12:19,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:19,442 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 574 transitions. [2020-10-27 23:12:19,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 23:12:19,442 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 574 transitions. [2020-10-27 23:12:19,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 23:12:19,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:19,446 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] [2020-10-27 23:12:19,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:12:19,447 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:19,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:19,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1064128907, now seen corresponding path program 1 times [2020-10-27 23:12:19,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:19,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603861682] [2020-10-27 23:12:19,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:19,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:19,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:20,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:20,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:21,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:24,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:24,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-27 23:12:24,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:12:24,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-27 23:12:24,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 23:12:24,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-27 23:12:24,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 23:12:24,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:12:25,240 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:12:25,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:12:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:12:25,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:12:25,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:12:25,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:12:25,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:12:25,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:12:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:12:25,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-27 23:12:25,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:12:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 23:12:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:12:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:12:25,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:12:25,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:25,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:12:25,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:12:25,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:12:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:25,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:12:25,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:25,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:25,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:12:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:25,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:25,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:25,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:25,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:12:25,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:25,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:25,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:25,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:25,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:12:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:25,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:26,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:26,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:26,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:26,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:12:26,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:26,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:26,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:26,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:12:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:26,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:26,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:26,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:12:26,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:26,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:12:26,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:12:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:12:26,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:12:26,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:26,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:12:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:26,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:26,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:12:26,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:12:26,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:12:26,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:12:26,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:12:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:12:26,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:12:26,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:12:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:12:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:12:26,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603861682] [2020-10-27 23:12:26,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:12:26,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-27 23:12:26,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855831440] [2020-10-27 23:12:26,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 23:12:26,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:12:26,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 23:12:26,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-10-27 23:12:26,279 INFO L87 Difference]: Start difference. First operand 361 states and 574 transitions. Second operand 16 states. [2020-10-27 23:12:26,928 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:29,348 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:12:29,929 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:30,507 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:12:30,898 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:31,371 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:31,553 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:32,118 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:32,296 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:32,521 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:33,288 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:33,464 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:33,648 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:33,845 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:34,046 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:35,084 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:12:35,249 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:35,458 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 23:12:35,637 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:35,820 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:36,065 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 23:12:37,110 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:12:37,681 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:12:37,845 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:12:38,442 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:12:39,057 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 287 [2020-10-27 23:12:39,250 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:39,875 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:12:41,667 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:41,862 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:42,075 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:42,276 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:42,456 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:12:42,668 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:42,887 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:43,098 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:44,588 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:44,802 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:12:44,986 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:45,241 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:45,470 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:45,709 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:12:45,948 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:46,169 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:47,654 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:47,890 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:12:48,067 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:48,302 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:12:48,518 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:12:48,790 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:49,023 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:12:50,507 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 23:12:50,766 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 23:12:51,193 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 128 [2020-10-27 23:12:51,395 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:12:51,620 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-27 23:12:51,939 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-27 23:12:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:12:55,239 INFO L93 Difference]: Finished difference Result 2143 states and 3461 transitions. [2020-10-27 23:12:55,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-10-27 23:12:55,240 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 154 [2020-10-27 23:12:55,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:12:55,258 INFO L225 Difference]: With dead ends: 2143 [2020-10-27 23:12:55,259 INFO L226 Difference]: Without dead ends: 1990 [2020-10-27 23:12:55,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2124 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=1321, Invalid=5159, Unknown=0, NotChecked=0, Total=6480 [2020-10-27 23:12:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2020-10-27 23:12:55,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1552. [2020-10-27 23:12:55,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1552 states. [2020-10-27 23:12:55,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 2490 transitions. [2020-10-27 23:12:55,436 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 2490 transitions. Word has length 154 [2020-10-27 23:12:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:12:55,436 INFO L481 AbstractCegarLoop]: Abstraction has 1552 states and 2490 transitions. [2020-10-27 23:12:55,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 23:12:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 2490 transitions. [2020-10-27 23:12:55,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-27 23:12:55,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:12:55,442 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] [2020-10-27 23:12:55,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:12:55,442 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:12:55,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:12:55,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1448546172, now seen corresponding path program 1 times [2020-10-27 23:12:55,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:12:55,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244046498] [2020-10-27 23:12:55,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:12:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:12:55,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:55,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:55,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:57,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:12:57,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:00,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:00,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-27 23:13:00,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:13:00,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-27 23:13:00,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:13:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-27 23:13:00,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:13:00,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,116 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:01,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:01,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:01,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:01,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:13:01,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:01,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:13:01,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:01,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-27 23:13:01,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:13:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 23:13:01,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:13:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:01,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:01,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:01,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:01,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:01,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:01,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:13:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:01,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:01,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:01,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:01,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:13:01,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:01,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:01,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:01,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:13:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:01,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:01,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:01,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:01,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:13:01,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:01,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:13:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:01,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:01,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:13:01,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:01,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:13:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:01,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:01,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:01,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:01,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:13:01,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:01,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:13:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:01,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:01,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:01,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:01,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:01,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:01,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:13:01,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:13:01,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:01,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244046498] [2020-10-27 23:13:01,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:01,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:13:01,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958687280] [2020-10-27 23:13:01,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:13:01,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:01,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:13:01,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:13:01,753 INFO L87 Difference]: Start difference. First operand 1552 states and 2490 transitions. Second operand 11 states. [2020-10-27 23:13:02,360 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:04,568 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:13:04,954 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:05,412 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:05,566 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:05,717 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:06,197 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:06,370 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:06,579 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:07,366 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:07,548 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:07,733 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:08,531 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:08,704 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:09,835 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:10,430 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:13:11,274 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:11,476 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:11,693 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:13:11,922 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:13:12,722 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:12,912 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:13,080 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:13,894 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:14,121 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:14,794 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:14,997 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:15,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:15,691 INFO L93 Difference]: Finished difference Result 6259 states and 10047 transitions. [2020-10-27 23:13:15,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:13:15,692 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2020-10-27 23:13:15,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:15,719 INFO L225 Difference]: With dead ends: 6259 [2020-10-27 23:13:15,720 INFO L226 Difference]: Without dead ends: 4915 [2020-10-27 23:13:15,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 23:13:15,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2020-10-27 23:13:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 3894. [2020-10-27 23:13:16,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3894 states. [2020-10-27 23:13:16,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 6240 transitions. [2020-10-27 23:13:16,031 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 6240 transitions. Word has length 155 [2020-10-27 23:13:16,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:16,031 INFO L481 AbstractCegarLoop]: Abstraction has 3894 states and 6240 transitions. [2020-10-27 23:13:16,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:13:16,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 6240 transitions. [2020-10-27 23:13:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 23:13:16,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:16,035 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] [2020-10-27 23:13:16,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:13:16,036 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:16,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:16,036 INFO L82 PathProgramCache]: Analyzing trace with hash 429829246, now seen corresponding path program 1 times [2020-10-27 23:13:16,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:16,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994060460] [2020-10-27 23:13:16,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:16,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:16,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:16,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:17,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:21,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:21,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 23:13:21,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:13:21,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-27 23:13:21,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:21,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:13:21,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 23:13:21,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:13:21,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:21,901 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:21,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:21,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:21,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:21,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:21,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:21,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:13:21,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:21,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:21,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:21,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:21,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:13:21,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:21,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:22,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:13:22,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:22,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-27 23:13:22,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:22,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:13:22,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:22,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 23:13:22,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:13:22,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:13:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:22,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:22,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:22,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:22,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:13:22,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:22,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:22,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:13:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:22,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:22,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:22,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:13:22,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:22,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:13:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:22,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:22,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:22,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:22,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:13:22,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:22,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:22,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:22,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:13:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:22,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:22,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:22,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:22,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:22,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:22,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:22,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:13:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:22,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:22,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:22,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:22,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:13:22,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:22,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:22,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:22,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:13:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:22,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:22,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:22,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:13:22,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:22,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:13:22,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:22,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:22,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 23:13:22,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:13:22,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:22,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994060460] [2020-10-27 23:13:22,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:22,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:13:22,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846571385] [2020-10-27 23:13:22,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:13:22,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:22,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:13:22,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:13:22,565 INFO L87 Difference]: Start difference. First operand 3894 states and 6240 transitions. Second operand 11 states. [2020-10-27 23:13:23,225 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:13:25,647 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:13:26,015 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:26,549 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-27 23:13:27,064 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:27,296 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:27,554 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:28,091 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:28,269 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:28,461 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:13:29,374 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:29,559 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:30,985 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:31,562 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:13:32,557 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:13:32,836 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:33,065 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:33,377 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:13:34,140 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:13:34,520 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:34,784 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:13:35,158 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:36,157 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:36,323 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:36,532 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:37,416 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:37,641 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:13:38,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:13:38,784 INFO L93 Difference]: Finished difference Result 18312 states and 29331 transitions. [2020-10-27 23:13:38,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:13:38,785 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2020-10-27 23:13:38,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:13:38,863 INFO L225 Difference]: With dead ends: 18312 [2020-10-27 23:13:38,863 INFO L226 Difference]: Without dead ends: 14626 [2020-10-27 23:13:38,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=343, Invalid=1217, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 23:13:38,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14626 states. [2020-10-27 23:13:39,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14626 to 11505. [2020-10-27 23:13:39,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11505 states. [2020-10-27 23:13:39,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11505 states to 11505 states and 18389 transitions. [2020-10-27 23:13:39,647 INFO L78 Accepts]: Start accepts. Automaton has 11505 states and 18389 transitions. Word has length 156 [2020-10-27 23:13:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:13:39,648 INFO L481 AbstractCegarLoop]: Abstraction has 11505 states and 18389 transitions. [2020-10-27 23:13:39,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:13:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 11505 states and 18389 transitions. [2020-10-27 23:13:39,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-27 23:13:39,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:13:39,653 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] [2020-10-27 23:13:39,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:13:39,653 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:13:39,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:13:39,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1607109861, now seen corresponding path program 1 times [2020-10-27 23:13:39,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:13:39,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264247095] [2020-10-27 23:13:39,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:13:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:39,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:39,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:41,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:41,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:44,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:44,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 23:13:44,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:13:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-27 23:13:44,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:13:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-27 23:13:44,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:13:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:45,358 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:13:45,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:13:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:45,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:45,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:45,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:13:45,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:45,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:13:45,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:45,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:13:45,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:45,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:13:45,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:45,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:13:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:45,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:45,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:45,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:13:45,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-27 23:13:45,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:13:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-27 23:13:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:45,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:13:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:45,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:45,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:45,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:13:45,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:45,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:13:45,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:45,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:45,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:45,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:13:45,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:45,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:13:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:45,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:45,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:45,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:45,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:45,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:13:45,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:45,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:45,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:13:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:45,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:45,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:45,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:45,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:45,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:13:45,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:45,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:45,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:45,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:45,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:45,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:13:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:45,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:45,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:45,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:45,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:45,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:13:45,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:45,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:13:45,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:13:45,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:13:45,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:45,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:13:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:45,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:45,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:45,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:13:45,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:45,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:13:45,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:13:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:13:45,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:13:45,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:13:45,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:13:45,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:13:45,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:13:45,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 23:13:45,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:13:45,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:13:45,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:13:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:13:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 23:13:45,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:13:45,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:13:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:13:45,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264247095] [2020-10-27 23:13:45,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:13:45,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:13:45,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041181079] [2020-10-27 23:13:45,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:13:45,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:13:45,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:13:45,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:13:45,986 INFO L87 Difference]: Start difference. First operand 11505 states and 18389 transitions. Second operand 11 states. [2020-10-27 23:13:46,657 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:13:49,082 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:13:49,440 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:49,943 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:50,560 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:13:51,062 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:13:51,237 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:13:51,546 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 124 [2020-10-27 23:13:52,460 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:13:53,621 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 287 DAG size of output: 284 [2020-10-27 23:13:53,956 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:54,283 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-27 23:13:56,143 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:56,669 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-27 23:13:57,332 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:13:58,045 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-27 23:13:58,736 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 23:13:59,509 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 128 [2020-10-27 23:14:00,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:14:00,681 INFO L93 Difference]: Finished difference Result 43160 states and 68888 transitions. [2020-10-27 23:14:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 23:14:00,682 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 157 [2020-10-27 23:14:00,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:14:00,806 INFO L225 Difference]: With dead ends: 43160 [2020-10-27 23:14:00,806 INFO L226 Difference]: Without dead ends: 31863 [2020-10-27 23:14:00,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=209, Invalid=661, Unknown=0, NotChecked=0, Total=870 [2020-10-27 23:14:00,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31863 states. [2020-10-27 23:14:02,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31863 to 24928. [2020-10-27 23:14:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24928 states. [2020-10-27 23:14:02,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24928 states to 24928 states and 39777 transitions. [2020-10-27 23:14:02,804 INFO L78 Accepts]: Start accepts. Automaton has 24928 states and 39777 transitions. Word has length 157 [2020-10-27 23:14:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:14:02,805 INFO L481 AbstractCegarLoop]: Abstraction has 24928 states and 39777 transitions. [2020-10-27 23:14:02,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:14:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand 24928 states and 39777 transitions. [2020-10-27 23:14:02,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-27 23:14:02,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:14:02,810 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] [2020-10-27 23:14:02,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:14:02,811 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:14:02,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:14:02,811 INFO L82 PathProgramCache]: Analyzing trace with hash 2140837511, now seen corresponding path program 1 times [2020-10-27 23:14:02,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:14:02,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076574504] [2020-10-27 23:14:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:14:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:03,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:03,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:03,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:06,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:07,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:07,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-27 23:14:07,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:14:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-27 23:14:07,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 23:14:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-27 23:14:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-27 23:14:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:08,463 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:14:08,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:14:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:08,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:08,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:08,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:14:08,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:08,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:14:08,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:08,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:08,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:08,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:08,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:08,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:14:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:08,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:08,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:08,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:14:08,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:08,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-27 23:14:08,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:14:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-27 23:14:08,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:08,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:14:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:08,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:08,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:08,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:14:08,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:08,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:14:08,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:08,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:14:08,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:08,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:14:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:08,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:08,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:08,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:08,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:08,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:14:08,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:08,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:08,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:08,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 23:14:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:08,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:08,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:08,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:08,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:08,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:14:08,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:08,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:08,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:14:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:08,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:08,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:08,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:08,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:08,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:14:08,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:08,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:08,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:08,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:14:08,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:08,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:14:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:08,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:08,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:08,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:08,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:08,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:14:08,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:08,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:14:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:14:08,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:14:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:08,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 23:14:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:08,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:09,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:09,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 23:14:09,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:14:09,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:14:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:14:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:14:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:14:09,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076574504] [2020-10-27 23:14:09,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:14:09,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:14:09,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046742245] [2020-10-27 23:14:09,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:14:09,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:14:09,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:14:09,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:14:09,072 INFO L87 Difference]: Start difference. First operand 24928 states and 39777 transitions. Second operand 11 states. [2020-10-27 23:14:09,695 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:14:11,902 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 23:14:12,258 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:12,797 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:13,368 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:13,887 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:14:14,389 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:14,553 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:15,465 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 23:14:16,047 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 23:14:17,120 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:17,541 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:17,757 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:18,211 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:14:18,487 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:19,334 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:19,592 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:20,090 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:14:20,422 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:21,309 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 23:14:21,578 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:22,046 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-27 23:14:22,322 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:23,184 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 23:14:23,456 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:14:23,935 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 23:14:24,857 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 23:14:27,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:14:27,790 INFO L93 Difference]: Finished difference Result 161754 states and 258587 transitions. [2020-10-27 23:14:27,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 23:14:27,791 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 158 [2020-10-27 23:14:27,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:14:28,292 INFO L225 Difference]: With dead ends: 161754 [2020-10-27 23:14:28,292 INFO L226 Difference]: Without dead ends: 137034 [2020-10-27 23:14:28,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=335, Invalid=1147, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 23:14:28,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137034 states. [2020-10-27 23:14:33,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137034 to 107442. [2020-10-27 23:14:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107442 states. [2020-10-27 23:14:34,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107442 states to 107442 states and 171496 transitions. [2020-10-27 23:14:34,482 INFO L78 Accepts]: Start accepts. Automaton has 107442 states and 171496 transitions. Word has length 158 [2020-10-27 23:14:34,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:14:34,483 INFO L481 AbstractCegarLoop]: Abstraction has 107442 states and 171496 transitions. [2020-10-27 23:14:34,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:14:34,483 INFO L276 IsEmpty]: Start isEmpty. Operand 107442 states and 171496 transitions. [2020-10-27 23:14:34,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-27 23:14:34,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:14:34,490 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] [2020-10-27 23:14:34,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:14:34,491 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:14:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:14:34,491 INFO L82 PathProgramCache]: Analyzing trace with hash 456231860, now seen corresponding path program 1 times [2020-10-27 23:14:34,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:14:34,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708670117] [2020-10-27 23:14:34,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:14:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:34,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:35,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:35,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:35,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:35,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:36,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:39,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:39,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 23:14:39,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 23:14:39,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-27 23:14:39,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:14:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-10-27 23:14:39,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:14:39,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,364 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:14:40,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:14:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:40,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:40,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:40,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:14:40,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:14:40,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:40,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:40,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:14:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:40,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:40,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:40,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:14:40,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:40,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 23:14:40,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:40,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:40,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:14:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:40,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:40,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:40,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:14:40,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:40,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:14:40,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:40,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:40,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:14:40,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:40,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:14:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:40,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:40,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:40,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:14:40,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:40,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:14:40,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:14:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:14:40,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:14:40,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:14:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:40,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:40,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:40,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:40,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:14:40,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:14:40,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:40,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:14:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:40,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:40,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:40,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:40,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:40,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:14:40,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:40,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:40,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:14:40,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:40,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 23:14:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:40,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:40,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:40,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:14:40,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:40,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:14:40,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:14:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:40,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-27 23:14:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:14:40,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:14:40,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:14:40,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:14:40,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:14:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:14:40,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:14:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:14:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:14:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:14:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:14:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:14:40,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708670117] [2020-10-27 23:14:40,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:14:40,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:14:40,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131201137] [2020-10-27 23:14:40,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:14:40,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:14:40,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:14:40,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:14:40,774 INFO L87 Difference]: Start difference. First operand 107442 states and 171496 transitions. Second operand 9 states. [2020-10-27 23:14:42,904 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:14:43,089 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:14:43,244 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:43,717 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:44,410 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 23:14:44,769 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:45,043 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:45,728 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:45,972 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:14:46,658 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-27 23:14:55,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:14:55,530 INFO L93 Difference]: Finished difference Result 362004 states and 583189 transitions. [2020-10-27 23:14:55,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 23:14:55,531 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-10-27 23:14:55,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:14:57,129 INFO L225 Difference]: With dead ends: 362004 [2020-10-27 23:14:57,129 INFO L226 Difference]: Without dead ends: 254770 [2020-10-27 23:14:57,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-10-27 23:14:57,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254770 states. [2020-10-27 23:15:07,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254770 to 202795. [2020-10-27 23:15:07,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202795 states. [2020-10-27 23:15:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202795 states to 202795 states and 323042 transitions. [2020-10-27 23:15:08,634 INFO L78 Accepts]: Start accepts. Automaton has 202795 states and 323042 transitions. Word has length 161 [2020-10-27 23:15:08,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:15:08,635 INFO L481 AbstractCegarLoop]: Abstraction has 202795 states and 323042 transitions. [2020-10-27 23:15:08,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:15:08,635 INFO L276 IsEmpty]: Start isEmpty. Operand 202795 states and 323042 transitions. [2020-10-27 23:15:08,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-27 23:15:08,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:15:08,644 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] [2020-10-27 23:15:08,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:15:08,644 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:15:08,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:15:08,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1349718198, now seen corresponding path program 1 times [2020-10-27 23:15:08,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:15:08,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [130086169] [2020-10-27 23:15:08,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:15:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:08,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:08,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:08,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:08,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:09,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:09,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:13,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:13,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 23:15:13,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:15:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-27 23:15:13,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:13,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:15:13,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-27 23:15:13,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 23:15:13,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,341 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 23:15:14,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:15:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:14,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:14,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:14,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:15:14,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:15:14,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:15:14,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:15:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:15:14,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:15:14,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:15:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:14,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:14,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:14,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:15:14,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:15:14,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 23:15:14,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:15:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:15:14,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 23:15:14,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:15:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:14,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:14,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:14,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:15:14,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:15:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:15:14,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:15:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:15:14,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:15:14,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 23:15:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:14,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:14,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:14,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 23:15:14,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:15:14,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:15:14,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:15:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:15:14,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 23:15:14,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 23:15:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:14,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:14,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:14,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:15:14,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:15:14,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:15:14,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:14,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:15:14,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:15:14,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:15:14,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 23:15:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:14,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:14,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:15:14,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:15:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:15:14,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:15:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:15:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:15:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 23:15:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:14,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:14,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:14,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:15:14,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:15:14,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:15:14,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:15:14,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:15:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:15:14,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-27 23:15:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:15:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:15:14,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:15:14,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:15:14,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:15:14,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:15:14,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:15:14,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:15:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:15:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:15:14,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:15:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:15:14,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [130086169] [2020-10-27 23:15:14,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:15:14,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 23:15:14,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846680701] [2020-10-27 23:15:14,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 23:15:14,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:15:14,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 23:15:14,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 23:15:14,802 INFO L87 Difference]: Start difference. First operand 202795 states and 323042 transitions. Second operand 10 states. [2020-10-27 23:15:15,423 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 23:15:17,562 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:15:17,887 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 23:15:18,105 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:15:18,623 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:15:19,088 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 23:15:20,354 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 23:15:20,549 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 23:15:20,896 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 23:15:21,201 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:15:21,880 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 23:15:22,611 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 122