/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=SHALLOWEST --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.4.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 04:41:35,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 04:41:35,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 04:41:35,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 04:41:35,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 04:41:35,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 04:41:35,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 04:41:35,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 04:41:35,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 04:41:35,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 04:41:35,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 04:41:35,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 04:41:35,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 04:41:35,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 04:41:35,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 04:41:35,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 04:41:35,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 04:41:35,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 04:41:35,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 04:41:35,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 04:41:35,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 04:41:35,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 04:41:35,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 04:41:35,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 04:41:35,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 04:41:35,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 04:41:35,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 04:41:35,539 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 04:41:35,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 04:41:35,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 04:41:35,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 04:41:35,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 04:41:35,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 04:41:35,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 04:41:35,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 04:41:35,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 04:41:35,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 04:41:35,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 04:41:35,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 04:41:35,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 04:41:35,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 04:41:35,558 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 04:41:35,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 04:41:35,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 04:41:35,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 04:41:35,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 04:41:35,614 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 04:41:35,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 04:41:35,615 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 04:41:35,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 04:41:35,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 04:41:35,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 04:41:35,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 04:41:35,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 04:41:35,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 04:41:35,617 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 04:41:35,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 04:41:35,618 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 04:41:35,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 04:41:35,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 04:41:35,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 04:41:35,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 04:41:35,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 04:41:35,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 04:41:35,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 04:41:35,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 04:41:35,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 04:41:35,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 04:41:35,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 04:41:35,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 04:41:35,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 04:41:35,621 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 04:41:36,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 04:41:36,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 04:41:36,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 04:41:36,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 04:41:36,097 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 04:41:36,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-27 04:41:36,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6b68675f/7e73caa874424d6091981bc1b698cb65/FLAG0cd388d67 [2020-10-27 04:41:36,948 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 04:41:36,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-27 04:41:36,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6b68675f/7e73caa874424d6091981bc1b698cb65/FLAG0cd388d67 [2020-10-27 04:41:37,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6b68675f/7e73caa874424d6091981bc1b698cb65 [2020-10-27 04:41:37,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 04:41:37,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 04:41:37,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 04:41:37,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 04:41:37,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 04:41:37,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:37,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d17016c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37, skipping insertion in model container [2020-10-27 04:41:37,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:37,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 04:41:37,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 04:41:37,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:41:37,753 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 04:41:37,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 04:41:37,930 INFO L208 MainTranslator]: Completed translation [2020-10-27 04:41:37,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37 WrapperNode [2020-10-27 04:41:37,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 04:41:37,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 04:41:37,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 04:41:37,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 04:41:37,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:37,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:37,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:37,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:37,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:38,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:38,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (1/1) ... [2020-10-27 04:41:38,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 04:41:38,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 04:41:38,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 04:41:38,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 04:41:38,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (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 04:41:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 04:41:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 04:41:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 04:41:38,154 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 04:41:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 04:41:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 04:41:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 04:41:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 04:41:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 04:41:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 04:41:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 04:41:38,156 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 04:41:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 04:41:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 04:41:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 04:41:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 04:41:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 04:41:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-27 04:41:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 04:41:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 04:41:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 04:41:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 04:41:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 04:41:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 04:41:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 04:41:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 04:41:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 04:41:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 04:41:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 04:41:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 04:41:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 04:41:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 04:41:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 04:41:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 04:41:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 04:41:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 04:41:39,791 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 04:41:39,792 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 04:41:39,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:41:39 BoogieIcfgContainer [2020-10-27 04:41:39,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 04:41:39,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 04:41:39,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 04:41:39,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 04:41:39,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:41:37" (1/3) ... [2020-10-27 04:41:39,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:41:39, skipping insertion in model container [2020-10-27 04:41:39,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:41:37" (2/3) ... [2020-10-27 04:41:39,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:41:39, skipping insertion in model container [2020-10-27 04:41:39,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:41:39" (3/3) ... [2020-10-27 04:41:39,804 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.2.ufo.UNBOUNDED.pals.c [2020-10-27 04:41:39,816 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 04:41:39,822 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 04:41:39,837 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 04:41:39,869 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 04:41:39,869 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 04:41:39,869 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 04:41:39,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 04:41:39,870 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 04:41:39,870 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 04:41:39,870 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 04:41:39,870 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 04:41:39,899 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states. [2020-10-27 04:41:39,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:41:39,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:41:39,919 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 04:41:39,919 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:41:39,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:41:39,926 INFO L82 PathProgramCache]: Analyzing trace with hash 2135324040, now seen corresponding path program 1 times [2020-10-27 04:41:39,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:41:39,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840502615] [2020-10-27 04:41:39,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:41:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:40,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:41,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:41,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 04:41:41,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:41,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 703 [2020-10-27 04:41:41,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:41,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:41,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 04:41:41,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:41,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 04:41:41,796 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:41:41,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:41:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:41,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:41,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:41,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:41:41,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:41,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 04:41:41,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:41,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:41,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:41,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:41,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:41,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:41:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:41,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:41,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:41,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 04:41:41,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:41,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 04:41:41,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:41,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:41,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:41,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:41,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:41,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 04:41:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:42,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:42,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:42,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:41:42,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:42,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:41:42,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:42,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 04:41:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:42,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:42,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 04:41:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:42,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:42,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:42,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:42,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:42,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:41:42,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:42,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:42,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:42,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:41:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:42,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:42,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:42,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:42,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:42,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:41:42,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:42,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:42,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:42,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:42,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:42,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 04:41:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:42,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:42,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:42,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:42,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:41:42,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:42,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:42,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:42,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:42,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:41:42,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 04:41:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:42,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:42,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:42,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:42,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:42,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:41:42,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:42,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:42,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:42,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 04:41:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:42,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:42,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:42,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:41:42,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:42,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:41:42,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:41:42,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:42,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:42,433 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 04:41:42,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840502615] [2020-10-27 04:41:42,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:41:42,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 04:41:42,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180615778] [2020-10-27 04:41:42,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 04:41:42,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:41:42,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 04:41:42,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 04:41:42,460 INFO L87 Difference]: Start difference. First operand 369 states. Second operand 7 states. [2020-10-27 04:41:43,576 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:44,077 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:44,622 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:45,136 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:45,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:41:45,700 INFO L93 Difference]: Finished difference Result 565 states and 949 transitions. [2020-10-27 04:41:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 04:41:45,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 109 [2020-10-27 04:41:45,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:41:45,728 INFO L225 Difference]: With dead ends: 565 [2020-10-27 04:41:45,728 INFO L226 Difference]: Without dead ends: 401 [2020-10-27 04:41:45,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 04:41:45,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-27 04:41:45,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-27 04:41:45,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-27 04:41:45,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 620 transitions. [2020-10-27 04:41:45,887 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 620 transitions. Word has length 109 [2020-10-27 04:41:45,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:41:45,887 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 620 transitions. [2020-10-27 04:41:45,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 04:41:45,889 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 620 transitions. [2020-10-27 04:41:45,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 04:41:45,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:41:45,903 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 04:41:45,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 04:41:45,904 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:41:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:41:45,905 INFO L82 PathProgramCache]: Analyzing trace with hash -231370554, now seen corresponding path program 1 times [2020-10-27 04:41:45,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:41:45,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871151857] [2020-10-27 04:41:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:41:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:46,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:47,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:47,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-27 04:41:47,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:47,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1551 [2020-10-27 04:41:47,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 04:41:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-27 04:41:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 04:41:47,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:48,380 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:41:48,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:41:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:48,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:48,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:41:48,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:48,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 04:41:48,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:48,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:48,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:48,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:48,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:48,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:41:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:48,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:48,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:48,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-27 04:41:48,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:48,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-27 04:41:48,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:48,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:41:48,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:41:48,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 04:41:48,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:48,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-27 04:41:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:48,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:48,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:48,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:41:48,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:48,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:41:48,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:41:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 04:41:48,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:41:48,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:48,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 04:41:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:48,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:48,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:48,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:48,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:48,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:41:48,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:48,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:48,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:48,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:48,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:49,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 04:41:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:49,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:49,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:49,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:49,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:41:49,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:41:49,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 04:41:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:49,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:49,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:49,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:49,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:41:49,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:49,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 04:41:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:49,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:49,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:49,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:41:49,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:41:49,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:41:49,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:49,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:49,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 04:41:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:49,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:49,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:41:49,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:41:49,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:41:49,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:41:49,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:41:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:41:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:41:49,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:41:49,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:41:49,287 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 04:41:49,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871151857] [2020-10-27 04:41:49,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:41:49,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-27 04:41:49,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132130196] [2020-10-27 04:41:49,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 04:41:49,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:41:49,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 04:41:49,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-27 04:41:49,294 INFO L87 Difference]: Start difference. First operand 361 states and 620 transitions. Second operand 13 states. [2020-10-27 04:41:52,223 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 04:41:52,963 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 285 [2020-10-27 04:41:53,785 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-27 04:41:54,491 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2020-10-27 04:41:55,499 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:56,227 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:57,034 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:57,735 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:41:58,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:41:58,755 INFO L93 Difference]: Finished difference Result 560 states and 937 transitions. [2020-10-27 04:41:58,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 04:41:58,756 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-27 04:41:58,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:41:58,761 INFO L225 Difference]: With dead ends: 560 [2020-10-27 04:41:58,761 INFO L226 Difference]: Without dead ends: 401 [2020-10-27 04:41:58,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-27 04:41:58,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-10-27 04:41:58,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 361. [2020-10-27 04:41:58,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-10-27 04:41:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 574 transitions. [2020-10-27 04:41:58,818 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 574 transitions. Word has length 109 [2020-10-27 04:41:58,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:41:58,819 INFO L481 AbstractCegarLoop]: Abstraction has 361 states and 574 transitions. [2020-10-27 04:41:58,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 04:41:58,819 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 574 transitions. [2020-10-27 04:41:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-27 04:41:58,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:41:58,821 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 04:41:58,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 04:41:58,822 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:41:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:41:58,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1064128907, now seen corresponding path program 1 times [2020-10-27 04:41:58,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:41:58,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1218792762] [2020-10-27 04:41:58,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:41:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:41:58,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:59,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:41:59,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:00,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:03,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:03,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-27 04:42:03,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:42:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-27 04:42:03,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:42:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 04:42:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 04:42:03,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:04,601 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:04,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:04,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:04,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:04,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 04:42:04,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:04,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:04,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:04,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:04,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:04,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:04,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:42:04,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:04,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-27 04:42:04,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 04:42:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:04,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:42:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:04,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:04,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:04,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:04,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:04,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:04,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:04,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:04,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:04,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:04,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:42:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:04,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:04,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:04,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:04,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:04,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 04:42:04,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:04,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:42:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:42:04,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:42:04,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:05,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 04:42:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:05,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:05,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:05,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:05,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:05,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:05,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:05,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:05,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:05,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:05,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 04:42:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:05,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:05,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:05,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:05,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:05,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:05,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:05,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:05,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 04:42:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:05,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:05,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:05,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:05,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:05,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:05,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:05,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:05,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:05,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 04:42:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:05,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:05,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:05,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:05,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:05,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:05,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:05,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:05,307 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 04:42:05,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1218792762] [2020-10-27 04:42:05,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:05,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:42:05,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721126484] [2020-10-27 04:42:05,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:42:05,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:05,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:42:05,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:42:05,310 INFO L87 Difference]: Start difference. First operand 361 states and 574 transitions. Second operand 10 states. [2020-10-27 04:42:05,948 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:42:08,218 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:08,568 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-27 04:42:09,024 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:42:09,289 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:09,955 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:42:10,275 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:10,902 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:42:11,241 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:12,675 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:42:13,238 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 04:42:13,470 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-27 04:42:13,813 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:42:13,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:42:13,920 INFO L93 Difference]: Finished difference Result 757 states and 1209 transitions. [2020-10-27 04:42:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:42:13,920 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2020-10-27 04:42:13,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:42:13,927 INFO L225 Difference]: With dead ends: 757 [2020-10-27 04:42:13,927 INFO L226 Difference]: Without dead ends: 604 [2020-10-27 04:42:13,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:42:13,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-10-27 04:42:13,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 514. [2020-10-27 04:42:13,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-27 04:42:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 814 transitions. [2020-10-27 04:42:13,992 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 814 transitions. Word has length 154 [2020-10-27 04:42:13,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:42:13,993 INFO L481 AbstractCegarLoop]: Abstraction has 514 states and 814 transitions. [2020-10-27 04:42:13,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:42:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 814 transitions. [2020-10-27 04:42:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-10-27 04:42:13,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:13,997 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 04:42:13,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 04:42:13,997 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:13,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:13,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1343170987, now seen corresponding path program 1 times [2020-10-27 04:42:13,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:13,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376147967] [2020-10-27 04:42:13,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:14,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:14,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:14,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:14,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:15,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:19,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:19,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-27 04:42:19,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:42:19,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-27 04:42:19,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:42:19,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-27 04:42:19,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:19,722 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:19,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:19,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:19,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:19,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:19,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:19,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:42:19,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:19,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:19,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:19,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:19,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:19,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:19,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:19,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:19,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:42:19,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:19,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-27 04:42:19,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:19,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:19,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:19,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 04:42:19,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:42:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:20,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:20,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:20,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:20,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:20,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:42:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 04:42:20,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:42:20,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 04:42:20,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:42:20,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 04:42:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:20,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:20,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:20,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 04:42:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:20,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:42:20,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:42:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:20,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:42:20,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:20,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-27 04:42:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:20,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:20,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:20,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:20,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:20,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:42:20,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:20,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:20,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:20,537 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 04:42:20,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376147967] [2020-10-27 04:42:20,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:20,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:42:20,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105898895] [2020-10-27 04:42:20,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:42:20,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:20,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:42:20,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:42:20,540 INFO L87 Difference]: Start difference. First operand 514 states and 814 transitions. Second operand 10 states. [2020-10-27 04:42:21,182 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:42:21,871 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification that was a NOOP. DAG size: 291 [2020-10-27 04:42:22,582 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:42:24,898 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 293 DAG size of output: 291 [2020-10-27 04:42:29,483 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:29,971 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:30,272 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:30,803 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:31,394 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:31,673 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:32,176 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:32,776 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:33,183 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:33,689 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:34,251 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:34,646 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:35,183 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:36,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:42:36,755 INFO L93 Difference]: Finished difference Result 1955 states and 3097 transitions. [2020-10-27 04:42:36,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:42:36,756 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2020-10-27 04:42:36,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:42:36,768 INFO L225 Difference]: With dead ends: 1955 [2020-10-27 04:42:36,768 INFO L226 Difference]: Without dead ends: 1494 [2020-10-27 04:42:36,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:42:36,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2020-10-27 04:42:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1310. [2020-10-27 04:42:36,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-10-27 04:42:36,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 2061 transitions. [2020-10-27 04:42:36,917 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 2061 transitions. Word has length 157 [2020-10-27 04:42:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:42:36,918 INFO L481 AbstractCegarLoop]: Abstraction has 1310 states and 2061 transitions. [2020-10-27 04:42:36,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:42:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 2061 transitions. [2020-10-27 04:42:36,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-27 04:42:36,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:42:36,923 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 04:42:36,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 04:42:36,924 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:42:36,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:42:36,924 INFO L82 PathProgramCache]: Analyzing trace with hash -716606703, now seen corresponding path program 1 times [2020-10-27 04:42:36,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:42:36,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216205489] [2020-10-27 04:42:36,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:42:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:37,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:37,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:37,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:37,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:38,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:42,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:42,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-27 04:42:42,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 04:42:42,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 04:42:42,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:42,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:42:42,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 04:42:42,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:42,678 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:42:42,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:42:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:42,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:42,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:42,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:42:42,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:42,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:42:42,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:42,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:42,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:42,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:42:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:42,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:42,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:42,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:42:42,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:42,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-27 04:42:42,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:42,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:42:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:42,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:42:42,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 04:42:43,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:42:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:43,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:43,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:42:43,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:43,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:43,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:42:43,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:43,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:43,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:42:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:43,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:43,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 04:42:43,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:43,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 04:42:43,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:43,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:42:43,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:43,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:42:43,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:43,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 04:42:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:43,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:43,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:42:43,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:43,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 04:42:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:43,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:43,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:43,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:43,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:42:43,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:43,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:43,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:43,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 04:42:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:43,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:43,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:42:43,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:43,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 04:42:43,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:42:43,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:43,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 04:42:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:42:43,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:42:43,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:42:43,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:42:43,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:42:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:42:43,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:42:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:42:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:42:43,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:42:43,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:42:43,525 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 04:42:43,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216205489] [2020-10-27 04:42:43,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:42:43,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:42:43,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711611760] [2020-10-27 04:42:43,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:42:43,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:42:43,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:42:43,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:42:43,530 INFO L87 Difference]: Start difference. First operand 1310 states and 2061 transitions. Second operand 10 states. [2020-10-27 04:42:44,209 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:42:44,963 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:42:45,721 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:42:47,686 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-27 04:42:53,112 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:42:53,637 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:53,940 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:54,426 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:55,202 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:55,494 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:55,921 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:56,679 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:57,104 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:57,518 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:42:58,244 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:42:58,623 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:42:59,035 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:00,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:00,774 INFO L93 Difference]: Finished difference Result 5239 states and 8277 transitions. [2020-10-27 04:43:00,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:43:00,775 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-10-27 04:43:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:00,799 INFO L225 Difference]: With dead ends: 5239 [2020-10-27 04:43:00,799 INFO L226 Difference]: Without dead ends: 3984 [2020-10-27 04:43:00,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:43:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2020-10-27 04:43:01,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 3544. [2020-10-27 04:43:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3544 states. [2020-10-27 04:43:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3544 states to 3544 states and 5546 transitions. [2020-10-27 04:43:01,208 INFO L78 Accepts]: Start accepts. Automaton has 3544 states and 5546 transitions. Word has length 158 [2020-10-27 04:43:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:01,208 INFO L481 AbstractCegarLoop]: Abstraction has 3544 states and 5546 transitions. [2020-10-27 04:43:01,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3544 states and 5546 transitions. [2020-10-27 04:43:01,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-27 04:43:01,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:01,219 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] [2020-10-27 04:43:01,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 04:43:01,219 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:01,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:01,220 INFO L82 PathProgramCache]: Analyzing trace with hash 998869968, now seen corresponding path program 1 times [2020-10-27 04:43:01,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:01,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991318292] [2020-10-27 04:43:01,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:01,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:01,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:01,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:02,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:02,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:03,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:03,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:06,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:06,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-27 04:43:06,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:43:06,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 04:43:06,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:43:06,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-27 04:43:06,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:06,988 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:06,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:07,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 04:43:07,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:07,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:43:07,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-27 04:43:07,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:07,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:43:07,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:43:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:07,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:07,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:07,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:07,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:07,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:43:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 04:43:07,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:43:07,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 04:43:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:43:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 04:43:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:07,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:43:07,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:07,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:07,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:07,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 04:43:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:07,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:43:07,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:07,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:07,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-27 04:43:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:07,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:43:07,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:07,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:07,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-27 04:43:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:07,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:07,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:07,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:07,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:07,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:07,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:07,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:07,765 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 04:43:07,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991318292] [2020-10-27 04:43:07,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:07,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:07,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681484372] [2020-10-27 04:43:07,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:07,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:07,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:07,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:07,768 INFO L87 Difference]: Start difference. First operand 3544 states and 5546 transitions. Second operand 10 states. [2020-10-27 04:43:08,474 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:43:09,200 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:43:09,982 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:43:12,132 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-27 04:43:17,603 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:43:18,069 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:18,365 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:18,807 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:19,593 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:19,884 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:20,116 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:20,933 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:21,288 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:21,538 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:22,375 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:22,735 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:22,983 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:24,665 INFO L93 Difference]: Finished difference Result 14416 states and 22671 transitions. [2020-10-27 04:43:24,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:43:24,666 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 159 [2020-10-27 04:43:24,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:24,731 INFO L225 Difference]: With dead ends: 14416 [2020-10-27 04:43:24,788 INFO L226 Difference]: Without dead ends: 11002 [2020-10-27 04:43:24,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:43:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2020-10-27 04:43:26,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 9860. [2020-10-27 04:43:26,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9860 states. [2020-10-27 04:43:26,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9860 states to 9860 states and 15344 transitions. [2020-10-27 04:43:26,076 INFO L78 Accepts]: Start accepts. Automaton has 9860 states and 15344 transitions. Word has length 159 [2020-10-27 04:43:26,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:26,077 INFO L481 AbstractCegarLoop]: Abstraction has 9860 states and 15344 transitions. [2020-10-27 04:43:26,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:26,077 INFO L276 IsEmpty]: Start isEmpty. Operand 9860 states and 15344 transitions. [2020-10-27 04:43:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-27 04:43:26,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:26,107 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] [2020-10-27 04:43:26,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 04:43:26,107 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:26,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:26,108 INFO L82 PathProgramCache]: Analyzing trace with hash 642898794, now seen corresponding path program 1 times [2020-10-27 04:43:26,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:26,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072891132] [2020-10-27 04:43:26,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:26,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:26,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:26,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:26,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:27,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:27,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 04:43:31,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 04:43:31,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-27 04:43:31,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:43:31,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 04:43:31,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,877 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:31,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:31,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:31,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:31,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:31,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 04:43:31,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:31,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:31,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:31,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:32,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:32,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:43:32,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:32,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-27 04:43:32,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:32,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:43:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:43:32,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:32,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:43:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:32,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:32,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:32,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:32,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:32,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 04:43:32,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:32,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:32,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 04:43:32,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:43:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:32,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:32,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:32,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:43:32,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:32,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:43:32,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 04:43:32,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 04:43:32,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:32,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:43:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:32,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:32,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:32,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:32,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:32,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:32,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:32,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:32,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 04:43:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:32,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:32,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:32,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:32,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:32,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:32,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:32,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:32,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:32,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 04:43:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:32,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:32,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:32,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:32,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:32,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 04:43:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:32,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:32,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:32,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:32,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:32,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:43:32,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:32,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:32,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:32,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:32,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:32,519 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 04:43:32,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072891132] [2020-10-27 04:43:32,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:32,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:32,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605368390] [2020-10-27 04:43:32,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:32,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:32,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:32,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:32,521 INFO L87 Difference]: Start difference. First operand 9860 states and 15344 transitions. Second operand 10 states. [2020-10-27 04:43:33,259 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:43:33,932 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:43:34,779 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 294 [2020-10-27 04:43:36,586 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 292 DAG size of output: 288 [2020-10-27 04:43:42,779 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:43:43,273 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:43,578 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:43,860 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:44,997 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:45,387 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:45,573 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:46,358 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:46,955 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:47,132 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:47,933 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:43:48,450 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:43:48,654 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:43:50,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:43:50,498 INFO L93 Difference]: Finished difference Result 36038 states and 55846 transitions. [2020-10-27 04:43:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 04:43:50,499 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-27 04:43:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:43:50,618 INFO L225 Difference]: With dead ends: 36038 [2020-10-27 04:43:50,618 INFO L226 Difference]: Without dead ends: 26524 [2020-10-27 04:43:50,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-27 04:43:50,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26524 states. [2020-10-27 04:43:53,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26524 to 24175. [2020-10-27 04:43:53,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24175 states. [2020-10-27 04:43:53,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24175 states to 24175 states and 36848 transitions. [2020-10-27 04:43:53,437 INFO L78 Accepts]: Start accepts. Automaton has 24175 states and 36848 transitions. Word has length 160 [2020-10-27 04:43:53,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:43:53,438 INFO L481 AbstractCegarLoop]: Abstraction has 24175 states and 36848 transitions. [2020-10-27 04:43:53,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:43:53,438 INFO L276 IsEmpty]: Start isEmpty. Operand 24175 states and 36848 transitions. [2020-10-27 04:43:53,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-27 04:43:53,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:43:53,502 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] [2020-10-27 04:43:53,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 04:43:53,503 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:43:53,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:43:53,503 INFO L82 PathProgramCache]: Analyzing trace with hash 320640236, now seen corresponding path program 1 times [2020-10-27 04:43:53,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:43:53,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266124756] [2020-10-27 04:43:53,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:43:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:53,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:53,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:53,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:54,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:54,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:55,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:55,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:58,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:58,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 04:43:58,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:43:58,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 04:43:58,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:43:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 04:43:58,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 04:43:58,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,242 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:43:59,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:43:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:59,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:59,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:59,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:43:59,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:59,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 04:43:59,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:59,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:59,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:59,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:43:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:59,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:59,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:59,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:43:59,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:59,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 04:43:59,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:59,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 04:43:59,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:43:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:59,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:59,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:59,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:43:59,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:59,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:43:59,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:59,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:43:59,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:43:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:59,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:59,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:59,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:43:59,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:59,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:43:59,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:43:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:43:59,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:43:59,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:43:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:59,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:59,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:59,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:59,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:59,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:43:59,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:59,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 04:43:59,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 04:43:59,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:43:59,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 04:43:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:59,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:59,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:59,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:59,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:43:59,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:59,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:59,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:59,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:59,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 04:43:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:59,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:59,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:59,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:43:59,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 04:43:59,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:43:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:59,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 04:43:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:43:59,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:43:59,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:43:59,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:43:59,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:43:59,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:43:59,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:43:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:43:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:43:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:43:59,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:43:59,720 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 04:43:59,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266124756] [2020-10-27 04:43:59,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:43:59,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:43:59,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060914304] [2020-10-27 04:43:59,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:43:59,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:43:59,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:43:59,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:43:59,722 INFO L87 Difference]: Start difference. First operand 24175 states and 36848 transitions. Second operand 10 states. [2020-10-27 04:44:00,428 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:44:04,228 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:44:04,840 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:05,183 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:05,750 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:44:06,054 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:06,709 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-27 04:44:07,108 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:09,079 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-27 04:44:09,647 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-27 04:44:10,296 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 290 [2020-10-27 04:44:10,541 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-27 04:44:10,852 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-27 04:44:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:44:11,055 INFO L93 Difference]: Finished difference Result 47163 states and 72685 transitions. [2020-10-27 04:44:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 04:44:11,056 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2020-10-27 04:44:11,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:44:11,337 INFO L225 Difference]: With dead ends: 47163 [2020-10-27 04:44:11,338 INFO L226 Difference]: Without dead ends: 36243 [2020-10-27 04:44:11,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:44:11,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36243 states. [2020-10-27 04:44:14,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36243 to 31851. [2020-10-27 04:44:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31851 states. [2020-10-27 04:44:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31851 states to 31851 states and 48584 transitions. [2020-10-27 04:44:14,591 INFO L78 Accepts]: Start accepts. Automaton has 31851 states and 48584 transitions. Word has length 160 [2020-10-27 04:44:14,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:44:14,591 INFO L481 AbstractCegarLoop]: Abstraction has 31851 states and 48584 transitions. [2020-10-27 04:44:14,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:44:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 31851 states and 48584 transitions. [2020-10-27 04:44:14,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-27 04:44:14,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:44:14,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:44:14,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 04:44:14,798 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:44:14,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:44:14,799 INFO L82 PathProgramCache]: Analyzing trace with hash 2082189776, now seen corresponding path program 1 times [2020-10-27 04:44:14,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:44:14,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395830890] [2020-10-27 04:44:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:44:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:14,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:15,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:19,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:19,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-27 04:44:19,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 04:44:19,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 04:44:19,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:44:19,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:44:19,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 04:44:19,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:20,576 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:44:20,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:44:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:20,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:20,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:20,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:44:20,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:20,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 04:44:20,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:20,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:20,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:20,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:44:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:20,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:20,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:20,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:44:20,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:20,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-27 04:44:20,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:20,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:44:20,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:20,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 04:44:20,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:20,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:44:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:20,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:20,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:20,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:44:20,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:20,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:44:20,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:44:20,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:20,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:44:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:20,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:20,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:20,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:44:20,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:20,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:44:20,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:20,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:44:20,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:20,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:44:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:20,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:20,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:20,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 04:44:20,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:20,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 04:44:20,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:20,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 04:44:20,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:20,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 04:44:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:20,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:20,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:20,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:20,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:20,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 04:44:20,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:20,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:21,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 04:44:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:21,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:21,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:21,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:21,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:21,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:44:21,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:21,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:21,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:21,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:21,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 04:44:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:21,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:21,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:21,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:44:21,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:21,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:44:21,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:44:21,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:21,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:21,131 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 04:44:21,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395830890] [2020-10-27 04:44:21,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:44:21,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:44:21,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185133132] [2020-10-27 04:44:21,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:44:21,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:44:21,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:44:21,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:44:21,132 INFO L87 Difference]: Start difference. First operand 31851 states and 48584 transitions. Second operand 10 states. [2020-10-27 04:44:21,862 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:44:22,539 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 04:44:23,462 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:44:24,159 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:44:30,198 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:44:30,667 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:30,982 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:32,046 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:32,360 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:33,228 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:33,500 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:34,382 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:44:34,755 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:44:37,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:44:37,760 INFO L93 Difference]: Finished difference Result 102037 states and 156465 transitions. [2020-10-27 04:44:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:44:37,761 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 164 [2020-10-27 04:44:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:44:38,043 INFO L225 Difference]: With dead ends: 102037 [2020-10-27 04:44:38,043 INFO L226 Difference]: Without dead ends: 70382 [2020-10-27 04:44:38,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:44:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70382 states. [2020-10-27 04:44:43,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70382 to 63003. [2020-10-27 04:44:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63003 states. [2020-10-27 04:44:43,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63003 states to 63003 states and 94960 transitions. [2020-10-27 04:44:43,657 INFO L78 Accepts]: Start accepts. Automaton has 63003 states and 94960 transitions. Word has length 164 [2020-10-27 04:44:43,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 04:44:43,658 INFO L481 AbstractCegarLoop]: Abstraction has 63003 states and 94960 transitions. [2020-10-27 04:44:43,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 04:44:43,658 INFO L276 IsEmpty]: Start isEmpty. Operand 63003 states and 94960 transitions. [2020-10-27 04:44:43,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-27 04:44:43,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 04:44:43,924 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 04:44:43,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 04:44:43,924 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 04:44:43,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 04:44:43,925 INFO L82 PathProgramCache]: Analyzing trace with hash 545527294, now seen corresponding path program 1 times [2020-10-27 04:44:43,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 04:44:43,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112571444] [2020-10-27 04:44:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 04:44:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:44,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:44,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:44,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:44,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:44,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:45,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:46,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:46,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:46,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:49,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:49,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 04:44:49,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 04:44:49,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-27 04:44:49,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:44:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 04:44:49,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-27 04:44:49,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:49,802 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-27 04:44:49,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 04:44:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:49,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:49,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:49,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 04:44:49,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:49,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 04:44:49,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:49,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:49,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:49,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:49,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:49,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 04:44:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:49,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:49,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 04:44:49,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:49,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-27 04:44:49,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 04:44:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 04:44:49,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:50,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 04:44:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:50,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:50,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:50,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 04:44:50,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:50,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 04:44:50,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 04:44:50,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:50,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 04:44:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:50,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:50,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:50,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 04:44:50,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:50,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:44:50,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:50,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:50,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 04:44:50,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 04:44:50,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:50,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 04:44:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:50,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:50,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:50,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 04:44:50,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 04:44:50,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 04:44:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:44:50,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 04:44:50,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:50,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 04:44:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:50,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:50,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:50,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-27 04:44:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:50,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:50,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:50,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 04:44:50,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 04:44:50,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 04:44:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:50,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-27 04:44:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 04:44:50,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 04:44:50,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 04:44:50,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 04:44:50,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 04:44:50,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 04:44:50,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 04:44:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 04:44:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 04:44:50,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 04:44:50,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 04:44:50,366 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 04:44:50,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112571444] [2020-10-27 04:44:50,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 04:44:50,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 04:44:50,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041612893] [2020-10-27 04:44:50,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 04:44:50,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 04:44:50,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 04:44:50,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 04:44:50,367 INFO L87 Difference]: Start difference. First operand 63003 states and 94960 transitions. Second operand 10 states. [2020-10-27 04:44:51,097 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2020-10-27 04:44:51,727 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-27 04:44:52,532 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2020-10-27 04:44:53,182 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:45:01,438 WARN L193 SmtUtils]: Spent 621.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2020-10-27 04:45:01,983 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:45:02,291 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:45:03,747 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:45:04,040 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:45:05,446 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:45:05,702 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:45:06,927 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-27 04:45:07,266 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-27 04:45:12,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 04:45:12,706 INFO L93 Difference]: Finished difference Result 201043 states and 304504 transitions. [2020-10-27 04:45:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 04:45:12,707 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 165 [2020-10-27 04:45:12,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 04:45:13,485 INFO L225 Difference]: With dead ends: 201043 [2020-10-27 04:45:13,486 INFO L226 Difference]: Without dead ends: 138296 [2020-10-27 04:45:13,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-27 04:45:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138296 states.