/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_floodmax.4.1.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:21:28,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:21:28,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:21:28,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:21:28,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:21:28,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:21:28,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:21:28,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:21:28,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:21:28,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:21:28,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:21:28,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:21:28,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:21:28,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:21:28,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:21:28,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:21:28,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:21:28,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:21:28,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:21:28,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:21:28,469 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:21:28,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:21:28,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:21:28,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:21:28,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:21:28,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:21:28,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:21:28,478 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:21:28,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:21:28,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:21:28,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:21:28,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:21:28,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:21:28,483 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:21:28,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:21:28,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:21:28,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:21:28,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:21:28,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:21:28,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:21:28,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:21:28,489 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 [2020-10-29 12:21:28,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:21:28,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:21:28,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:21:28,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:21:28,531 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:21:28,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:21:28,531 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:21:28,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:21:28,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:21:28,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:21:28,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:21:28,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:21:28,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:21:28,533 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:21:28,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:21:28,533 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:21:28,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:21:28,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:21:28,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:21:28,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:21:28,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:21:28,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:21:28,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:21:28,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:21:28,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:21:28,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:21:28,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:21:28,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:21:28,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:21:28,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:21:28,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:21:28,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:21:28,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:21:28,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:21:28,957 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:21:28,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-29 12:21:29,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90b81730c/73d733d381e249d28f3b7feff5150db9/FLAGeb60b3773 [2020-10-29 12:21:29,778 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:21:29,779 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-29 12:21:29,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90b81730c/73d733d381e249d28f3b7feff5150db9/FLAGeb60b3773 [2020-10-29 12:21:30,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90b81730c/73d733d381e249d28f3b7feff5150db9 [2020-10-29 12:21:30,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:21:30,077 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:21:30,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:21:30,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:21:30,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:21:30,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2737ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30, skipping insertion in model container [2020-10-29 12:21:30,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:21:30,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:21:30,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:21:30,520 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:21:30,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:21:30,739 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:21:30,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30 WrapperNode [2020-10-29 12:21:30,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:21:30,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:21:30,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:21:30,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:21:30,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (1/1) ... [2020-10-29 12:21:30,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:21:30,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:21:30,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:21:30,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:21:30,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (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 [2020-10-29 12:21:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:21:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:21:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:21:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:21:31,000 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:21:31,001 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:21:31,001 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:21:31,001 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:21:31,001 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:21:31,002 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:21:31,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:21:31,003 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:21:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:21:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:21:31,003 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:21:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:21:31,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:21:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:21:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:21:31,005 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:21:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:21:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:21:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:21:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:21:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:21:31,006 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:21:31,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:21:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:21:31,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:21:32,582 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:21:32,582 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:21:32,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:21:32 BoogieIcfgContainer [2020-10-29 12:21:32,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:21:32,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:21:32,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:21:32,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:21:32,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:21:30" (1/3) ... [2020-10-29 12:21:32,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc6a69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:21:32, skipping insertion in model container [2020-10-29 12:21:32,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:30" (2/3) ... [2020-10-29 12:21:32,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc6a69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:21:32, skipping insertion in model container [2020-10-29 12:21:32,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:21:32" (3/3) ... [2020-10-29 12:21:32,609 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.BOUNDED-8.pals.c [2020-10-29 12:21:32,621 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:21:32,626 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:21:32,639 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:21:32,669 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:21:32,670 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:21:32,670 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:21:32,670 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:21:32,670 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:21:32,670 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:21:32,670 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:21:32,671 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:21:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states. [2020-10-29 12:21:32,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-29 12:21:32,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:21:32,721 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] [2020-10-29 12:21:32,722 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:21:32,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:21:32,737 INFO L82 PathProgramCache]: Analyzing trace with hash 818055633, now seen corresponding path program 1 times [2020-10-29 12:21:32,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:21:32,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133223039] [2020-10-29 12:21:32,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:21:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:33,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:33,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:33,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:21:33,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:33,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-29 12:21:33,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:33,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:33,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-29 12:21:33,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:33,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:21:34,576 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:21:34,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:21:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:34,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:34,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:34,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:21:34,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:34,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 12:21:34,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:34,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:34,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:34,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:34,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:34,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:21:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:34,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:34,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:34,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:21:34,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:34,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 12:21:34,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:34,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:34,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:34,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:34,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:21:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:34,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:34,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:34,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:21:34,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:34,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:21:34,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:34,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:21:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:34,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:21:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:34,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:34,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:34,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:21:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:34,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:34,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:34,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:34,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 12:21:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:34,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:34,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:34,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:34,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:34,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:21:34,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:34,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:34,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:34,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 12:21:34,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:21:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:35,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:35,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:35,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:35,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:35,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:21:35,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:35,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:35,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:35,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:35,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:21:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:35,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:35,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:35,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:35,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:35,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:21:35,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:35,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:35,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:35,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:35,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:35,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:35,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 12:21:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:35,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:35,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:35,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:35,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:35,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:21:35,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:35,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:35,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:35,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:21:35,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133223039] [2020-10-29 12:21:35,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:21:35,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 12:21:35,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230140520] [2020-10-29 12:21:35,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:21:35,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:21:35,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:21:35,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:21:35,167 INFO L87 Difference]: Start difference. First operand 326 states. Second operand 7 states. [2020-10-29 12:21:36,310 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:36,873 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:37,391 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:37,894 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:38,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:21:38,508 INFO L93 Difference]: Finished difference Result 488 states and 815 transitions. [2020-10-29 12:21:38,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:21:38,510 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-29 12:21:38,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:21:38,535 INFO L225 Difference]: With dead ends: 488 [2020-10-29 12:21:38,536 INFO L226 Difference]: Without dead ends: 346 [2020-10-29 12:21:38,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:21:38,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-29 12:21:38,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 318. [2020-10-29 12:21:38,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-29 12:21:38,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 545 transitions. [2020-10-29 12:21:38,690 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 545 transitions. Word has length 105 [2020-10-29 12:21:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:21:38,691 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 545 transitions. [2020-10-29 12:21:38,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:21:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 545 transitions. [2020-10-29 12:21:38,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-29 12:21:38,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:21:38,707 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] [2020-10-29 12:21:38,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:21:38,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:21:38,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:21:38,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1066202127, now seen corresponding path program 1 times [2020-10-29 12:21:38,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:21:38,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830803307] [2020-10-29 12:21:38,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:21:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:38,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:40,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:40,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:21:40,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:40,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1484 [2020-10-29 12:21:40,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:40,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:40,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:21:40,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-29 12:21:40,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:21:40,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:41,008 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:21:41,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:21:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:41,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:41,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:41,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:21:41,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:41,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:21:41,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:41,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:41,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:41,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:41,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:41,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:21:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:41,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:41,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:41,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:21:41,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:41,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-29 12:21:41,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:41,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:21:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:41,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 12:21:41,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:21:41,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:21:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:41,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:41,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:41,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:21:41,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:41,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:21:41,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:41,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:21:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:21:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:21:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:41,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:21:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:41,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:41,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:41,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:41,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:41,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:21:41,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:41,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:41,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:41,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 12:21:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:41,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:41,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:41,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:41,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:41,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:21:41,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:41,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:41,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:41,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:41,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:41,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:41,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:21:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:41,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:41,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:41,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:41,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:41,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:21:41,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:41,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:41,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:41,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:41,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:21:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:41,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:41,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:41,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:41,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:41,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:21:41,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:41,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:41,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 12:21:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:41,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:41,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:41,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:41,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:41,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:21:41,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:41,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:41,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:41,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:41,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:21:41,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830803307] [2020-10-29 12:21:41,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:21:41,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:21:41,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760930434] [2020-10-29 12:21:41,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:21:41,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:21:41,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:21:41,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:21:41,907 INFO L87 Difference]: Start difference. First operand 318 states and 545 transitions. Second operand 13 states. [2020-10-29 12:21:44,804 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:21:45,466 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2020-10-29 12:21:46,160 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-29 12:21:46,791 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:21:47,399 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:47,968 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:48,530 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:49,049 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:21:50,157 INFO L93 Difference]: Finished difference Result 488 states and 815 transitions. [2020-10-29 12:21:50,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 12:21:50,158 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2020-10-29 12:21:50,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:21:50,165 INFO L225 Difference]: With dead ends: 488 [2020-10-29 12:21:50,166 INFO L226 Difference]: Without dead ends: 356 [2020-10-29 12:21:50,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:21:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-10-29 12:21:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 318. [2020-10-29 12:21:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-29 12:21:50,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 515 transitions. [2020-10-29 12:21:50,247 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 515 transitions. Word has length 105 [2020-10-29 12:21:50,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:21:50,247 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 515 transitions. [2020-10-29 12:21:50,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:21:50,248 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 515 transitions. [2020-10-29 12:21:50,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-29 12:21:50,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:21:50,250 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] [2020-10-29 12:21:50,251 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:21:50,251 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:21:50,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:21:50,251 INFO L82 PathProgramCache]: Analyzing trace with hash 597399922, now seen corresponding path program 1 times [2020-10-29 12:21:50,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:21:50,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465102241] [2020-10-29 12:21:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:21:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:50,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:50,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:50,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:52,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:55,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:55,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-29 12:21:55,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:21:55,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-29 12:21:55,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:55,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:55,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:21:55,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-29 12:21:55,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 12:21:55,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:55,929 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:21:55,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:21:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:55,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:55,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:55,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:21:55,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:55,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:21:55,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:55,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:55,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:55,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:55,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:21:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:56,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:56,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:56,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 12:21:56,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:56,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 12:21:56,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:56,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:21:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:56,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:21:56,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:56,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:21:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:56,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:56,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:56,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:21:56,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:56,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:21:56,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:56,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:21:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:56,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:21:56,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:56,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:21:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:56,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:56,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:56,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:56,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:56,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:21:56,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:56,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:21:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:56,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:21:56,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:56,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:21:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:56,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:56,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:56,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:56,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:56,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:21:56,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:56,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:21:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:56,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:21:56,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:56,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:21:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:56,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:56,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:56,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:56,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:56,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:21:56,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:56,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:21:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:21:56,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:21:56,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:56,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 12:21:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:56,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:56,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:56,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:56,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:56,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:21:56,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:56,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:56,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:56,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:56,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-29 12:21:56,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:56,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:56,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:56,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:56,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:56,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:21:56,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:56,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:56,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:56,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:21:56,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465102241] [2020-10-29 12:21:56,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:21:56,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:21:56,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824893744] [2020-10-29 12:21:56,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:21:56,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:21:56,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:21:56,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:21:56,498 INFO L87 Difference]: Start difference. First operand 318 states and 515 transitions. Second operand 10 states. [2020-10-29 12:21:57,188 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-29 12:21:59,079 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:21:59,507 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:21:59,919 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:00,205 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:00,504 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:00,659 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:22:01,676 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:01,980 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:02,732 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-29 12:22:02,888 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:03,110 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:22:03,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:22:03,133 INFO L93 Difference]: Finished difference Result 622 states and 999 transitions. [2020-10-29 12:22:03,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:22:03,134 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 134 [2020-10-29 12:22:03,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:22:03,139 INFO L225 Difference]: With dead ends: 622 [2020-10-29 12:22:03,139 INFO L226 Difference]: Without dead ends: 496 [2020-10-29 12:22:03,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:22:03,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-29 12:22:03,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 434. [2020-10-29 12:22:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-10-29 12:22:03,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 701 transitions. [2020-10-29 12:22:03,194 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 701 transitions. Word has length 134 [2020-10-29 12:22:03,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:22:03,194 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 701 transitions. [2020-10-29 12:22:03,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:22:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 701 transitions. [2020-10-29 12:22:03,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-29 12:22:03,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:22:03,199 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] [2020-10-29 12:22:03,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:22:03,199 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:22:03,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:22:03,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1865958876, now seen corresponding path program 1 times [2020-10-29 12:22:03,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:22:03,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1078620223] [2020-10-29 12:22:03,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:22:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:03,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:03,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:03,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:03,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:04,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:04,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:08,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:08,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 12:22:08,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:22:08,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 12:22:08,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:08,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:08,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:08,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:22:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 12:22:08,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:22:08,840 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:22:08,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:22:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:08,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:08,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:08,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:22:08,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:08,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:22:08,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:08,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:08,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:08,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:08,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:22:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:08,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:09,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:09,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 12:22:09,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:09,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-29 12:22:09,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:09,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:22:09,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:09,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:22:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:09,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:09,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:09,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:22:09,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:09,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:22:09,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:09,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:09,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:09,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:22:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:09,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:09,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:09,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:09,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:09,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:22:09,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:09,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:09,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:22:09,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:09,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:22:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:09,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:09,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:09,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:09,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:09,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:22:09,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:09,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:09,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:22:09,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:09,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:22:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:09,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:09,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:09,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:22:09,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:09,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:22:09,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:09,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:22:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:22:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:09,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 12:22:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:09,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:09,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:09,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:09,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:09,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:22:09,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:09,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:09,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:09,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:09,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:09,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:09,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-29 12:22:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:09,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:09,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:09,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:09,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:09,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:22:09,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:09,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:09,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:09,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:09,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:22:09,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1078620223] [2020-10-29 12:22:09,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:22:09,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:22:09,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878201531] [2020-10-29 12:22:09,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:22:09,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:22:09,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:22:09,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:22:09,594 INFO L87 Difference]: Start difference. First operand 434 states and 701 transitions. Second operand 10 states. [2020-10-29 12:22:10,218 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:22:10,847 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2020-10-29 12:22:11,636 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-29 12:22:12,901 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 281 DAG size of output: 279 [2020-10-29 12:22:18,115 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:22:18,522 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:18,763 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:19,263 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:19,661 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:19,959 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:20,688 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:21,043 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:21,360 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:21,809 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:22,618 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:22,911 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:23,060 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:24,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:22:24,609 INFO L93 Difference]: Finished difference Result 1660 states and 2690 transitions. [2020-10-29 12:22:24,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:22:24,611 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 137 [2020-10-29 12:22:24,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:22:24,619 INFO L225 Difference]: With dead ends: 1660 [2020-10-29 12:22:24,620 INFO L226 Difference]: Without dead ends: 1254 [2020-10-29 12:22:24,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:22:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2020-10-29 12:22:24,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1124. [2020-10-29 12:22:24,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-10-29 12:22:24,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1812 transitions. [2020-10-29 12:22:24,779 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1812 transitions. Word has length 137 [2020-10-29 12:22:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:22:24,781 INFO L481 AbstractCegarLoop]: Abstraction has 1124 states and 1812 transitions. [2020-10-29 12:22:24,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:22:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1812 transitions. [2020-10-29 12:22:24,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-29 12:22:24,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:22:24,785 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] [2020-10-29 12:22:24,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:22:24,786 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:22:24,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:22:24,786 INFO L82 PathProgramCache]: Analyzing trace with hash -234095040, now seen corresponding path program 1 times [2020-10-29 12:22:24,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:22:24,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270725324] [2020-10-29 12:22:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:22:24,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:24,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:24,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:25,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:25,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:25,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:28,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:29,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:29,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 12:22:29,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:22:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-29 12:22:29,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:29,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:22:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 12:22:29,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:30,583 WARN L193 SmtUtils]: Spent 585.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:22:30,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:22:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:30,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:30,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:30,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:22:30,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:30,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:22:30,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:30,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:30,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:30,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:30,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:30,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:30,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:22:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:30,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:30,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:30,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 12:22:30,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 12:22:30,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:30,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 12:22:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:30,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:22:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:30,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:30,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:30,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:22:30,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:30,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:30,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:30,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:30,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:30,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:30,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:30,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:30,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:22:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:30,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:30,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:30,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:22:30,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:30,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:22:30,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:30,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:22:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:30,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:30,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:30,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:30,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:30,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:22:30,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:30,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:30,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:22:30,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:31,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:22:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:31,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:31,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:31,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:22:31,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:31,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:22:31,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:31,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:31,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:31,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:22:31,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:31,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:31,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 12:22:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:31,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:31,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:31,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:31,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:31,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:22:31,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:31,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:31,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:31,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:31,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:31,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-29 12:22:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:31,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:31,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:31,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:31,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:31,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:22:31,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:31,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:31,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:31,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:31,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:22:31,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270725324] [2020-10-29 12:22:31,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:22:31,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:22:31,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848014238] [2020-10-29 12:22:31,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:22:31,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:22:31,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:22:31,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:22:31,291 INFO L87 Difference]: Start difference. First operand 1124 states and 1812 transitions. Second operand 10 states. [2020-10-29 12:22:32,015 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:22:32,731 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:22:34,054 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 282 DAG size of output: 276 [2020-10-29 12:22:34,730 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-29 12:22:40,472 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:22:40,878 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:41,183 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:41,638 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:41,892 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:42,419 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:42,896 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:43,279 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:43,747 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:44,229 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:44,872 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:45,143 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:45,370 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:22:46,954 INFO L93 Difference]: Finished difference Result 4426 states and 7146 transitions. [2020-10-29 12:22:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:22:46,955 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 137 [2020-10-29 12:22:46,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:22:46,978 INFO L225 Difference]: With dead ends: 4426 [2020-10-29 12:22:46,978 INFO L226 Difference]: Without dead ends: 3400 [2020-10-29 12:22:46,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:22:46,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2020-10-29 12:22:47,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3101. [2020-10-29 12:22:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3101 states. [2020-10-29 12:22:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4980 transitions. [2020-10-29 12:22:47,398 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4980 transitions. Word has length 137 [2020-10-29 12:22:47,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:22:47,398 INFO L481 AbstractCegarLoop]: Abstraction has 3101 states and 4980 transitions. [2020-10-29 12:22:47,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:22:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4980 transitions. [2020-10-29 12:22:47,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-29 12:22:47,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:22:47,407 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] [2020-10-29 12:22:47,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:22:47,408 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:22:47,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:22:47,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1637962192, now seen corresponding path program 1 times [2020-10-29 12:22:47,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:22:47,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782917524] [2020-10-29 12:22:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:22:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:47,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:47,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:47,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:47,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:48,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:48,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:52,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:52,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-29 12:22:52,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:22:52,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 12:22:52,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:52,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:52,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:52,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:22:52,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 12:22:52,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:53,093 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:22:53,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:22:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:53,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:53,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:22:53,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:22:53,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:53,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:53,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:53,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:22:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:53,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:53,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:53,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 12:22:53,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-29 12:22:53,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:53,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:53,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:53,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 12:22:53,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:53,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:22:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:53,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:53,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:53,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:22:53,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:53,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:53,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:53,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:53,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:53,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:53,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:22:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:53,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:53,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:53,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:53,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:53,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:22:53,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:53,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:53,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:53,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:53,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:22:53,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:53,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:22:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:53,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:53,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:53,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:53,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:53,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:22:53,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:53,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:53,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:53,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:22:53,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:22:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:53,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:53,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:53,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:22:53,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:22:53,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:53,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 12:22:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:53,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 12:22:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:53,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:53,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:53,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:53,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:53,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:22:53,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:53,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:53,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:53,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:53,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:53,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:53,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 12:22:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:53,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:53,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:53,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:53,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:53,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:22:53,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:53,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:53,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:53,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:53,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:22:53,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782917524] [2020-10-29 12:22:53,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:22:53,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:22:53,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531389927] [2020-10-29 12:22:53,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:22:53,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:22:53,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:22:53,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:22:53,773 INFO L87 Difference]: Start difference. First operand 3101 states and 4980 transitions. Second operand 10 states. [2020-10-29 12:22:54,469 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:22:55,167 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2020-10-29 12:22:56,052 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-29 12:22:57,357 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 280 DAG size of output: 276 [2020-10-29 12:23:03,255 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:23:03,669 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:03,991 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:04,407 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:04,774 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:05,306 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:05,883 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:06,260 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:06,749 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:07,248 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:08,083 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:08,354 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:08,618 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:10,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:23:10,239 INFO L93 Difference]: Finished difference Result 12019 states and 19277 transitions. [2020-10-29 12:23:10,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:23:10,242 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 138 [2020-10-29 12:23:10,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:23:10,290 INFO L225 Difference]: With dead ends: 12019 [2020-10-29 12:23:10,291 INFO L226 Difference]: Without dead ends: 9113 [2020-10-29 12:23:10,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:23:10,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9113 states. [2020-10-29 12:23:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9113 to 8401. [2020-10-29 12:23:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8401 states. [2020-10-29 12:23:11,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8401 states to 8401 states and 13392 transitions. [2020-10-29 12:23:11,465 INFO L78 Accepts]: Start accepts. Automaton has 8401 states and 13392 transitions. Word has length 138 [2020-10-29 12:23:11,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:23:11,466 INFO L481 AbstractCegarLoop]: Abstraction has 8401 states and 13392 transitions. [2020-10-29 12:23:11,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:23:11,466 INFO L276 IsEmpty]: Start isEmpty. Operand 8401 states and 13392 transitions. [2020-10-29 12:23:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-29 12:23:11,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:23:11,491 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] [2020-10-29 12:23:11,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:23:11,492 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:23:11,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:23:11,492 INFO L82 PathProgramCache]: Analyzing trace with hash 477811714, now seen corresponding path program 1 times [2020-10-29 12:23:11,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:23:11,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169283632] [2020-10-29 12:23:11,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:23:11,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:11,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:11,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:11,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:12,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:12,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:12,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:13,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:16,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:16,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 12:23:16,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:23:16,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 12:23:16,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:16,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:23:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:23:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 12:23:16,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:17,198 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:23:17,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:23:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:17,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:17,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:17,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:23:17,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:17,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:23:17,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:17,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:17,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:17,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:17,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:23:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:17,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:17,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:17,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 12:23:17,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:17,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 12:23:17,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:17,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:23:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:17,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:23:17,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:17,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:23:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:17,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:17,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:23:17,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:17,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:23:17,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:17,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:17,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:17,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:17,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:23:17,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:17,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:23:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:17,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:17,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:17,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:17,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:17,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:23:17,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:23:17,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:23:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:17,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:17,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:17,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:17,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:17,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:23:17,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:17,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:17,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:23:17,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:23:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:23:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:17,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:17,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:17,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:23:17,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:17,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:23:17,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:17,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:17,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:23:17,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:23:17,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:23:17,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:23:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:17,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:17,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:17,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:17,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:23:17,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:17,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:17,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:17,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:17,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:23:17,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:23:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:17,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:17,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:17,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:17,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:17,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:23:17,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:17,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:17,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:23:18,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169283632] [2020-10-29 12:23:18,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:23:18,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:23:18,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855473809] [2020-10-29 12:23:18,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:23:18,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:23:18,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:23:18,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:23:18,062 INFO L87 Difference]: Start difference. First operand 8401 states and 13392 transitions. Second operand 10 states. [2020-10-29 12:23:18,788 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:23:19,491 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2020-10-29 12:23:20,203 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-29 12:23:22,217 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 281 DAG size of output: 279 [2020-10-29 12:23:28,001 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:23:28,452 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:28,789 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:29,263 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:29,606 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:30,187 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:30,812 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:31,103 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:31,643 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:31,992 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:33,009 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:33,501 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:33,750 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:35,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:23:35,520 INFO L93 Difference]: Finished difference Result 31408 states and 49931 transitions. [2020-10-29 12:23:35,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:23:35,521 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 139 [2020-10-29 12:23:35,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:23:35,624 INFO L225 Difference]: With dead ends: 31408 [2020-10-29 12:23:35,624 INFO L226 Difference]: Without dead ends: 23406 [2020-10-29 12:23:35,654 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 [2020-10-29 12:23:35,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23406 states. [2020-10-29 12:23:38,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23406 to 21889. [2020-10-29 12:23:38,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21889 states. [2020-10-29 12:23:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21889 states to 21889 states and 34501 transitions. [2020-10-29 12:23:38,350 INFO L78 Accepts]: Start accepts. Automaton has 21889 states and 34501 transitions. Word has length 139 [2020-10-29 12:23:38,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:23:38,351 INFO L481 AbstractCegarLoop]: Abstraction has 21889 states and 34501 transitions. [2020-10-29 12:23:38,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:23:38,351 INFO L276 IsEmpty]: Start isEmpty. Operand 21889 states and 34501 transitions. [2020-10-29 12:23:38,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-29 12:23:38,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:23:38,416 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] [2020-10-29 12:23:38,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:23:38,416 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:23:38,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:23:38,416 INFO L82 PathProgramCache]: Analyzing trace with hash -561066299, now seen corresponding path program 1 times [2020-10-29 12:23:38,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:23:38,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339994417] [2020-10-29 12:23:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:23:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:38,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:38,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:38,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:40,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:43,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:43,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 12:23:43,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:23:43,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-29 12:23:43,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:43,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:43,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:23:43,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:23:43,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 12:23:43,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:44,230 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:23:44,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:23:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:44,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:44,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:44,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:23:44,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:44,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:23:44,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:44,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:44,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:23:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:44,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:44,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:44,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 12:23:44,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-29 12:23:44,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:44,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:23:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 12:23:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:44,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:23:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:44,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:44,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:44,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:23:44,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:44,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:23:44,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:44,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:44,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:44,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:44,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:23:44,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:23:44,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:23:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:44,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:44,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:44,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:44,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:44,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:23:44,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:44,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:44,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:23:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:44,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:23:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:44,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:44,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:44,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:44,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:44,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:23:44,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:44,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:44,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:44,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:44,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:23:44,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:44,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:23:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:44,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:44,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:44,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:23:44,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:23:44,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:44,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:23:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:23:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:44,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:23:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:44,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:44,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:44,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:44,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:44,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:23:44,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:44,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:44,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:44,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:44,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:23:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:44,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:44,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:44,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:44,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:44,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:23:44,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:44,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:44,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:44,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:44,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:44,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:44,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:23:44,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339994417] [2020-10-29 12:23:44,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:23:44,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:23:44,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778114048] [2020-10-29 12:23:44,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:23:44,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:23:44,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:23:44,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:23:44,829 INFO L87 Difference]: Start difference. First operand 21889 states and 34501 transitions. Second operand 10 states. [2020-10-29 12:23:45,582 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:23:46,297 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-29 12:23:47,317 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-29 12:23:48,036 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:23:54,204 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:23:54,542 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:54,830 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:55,385 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:55,861 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:56,570 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:57,089 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:58,061 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:58,290 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:24:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:24:00,251 INFO L93 Difference]: Finished difference Result 67388 states and 105879 transitions. [2020-10-29 12:24:00,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:24:00,252 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 139 [2020-10-29 12:24:00,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:24:00,436 INFO L225 Difference]: With dead ends: 67388 [2020-10-29 12:24:00,436 INFO L226 Difference]: Without dead ends: 46641 [2020-10-29 12:24:00,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:24:00,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46641 states. [2020-10-29 12:24:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46641 to 43713. [2020-10-29 12:24:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43713 states. [2020-10-29 12:24:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43713 states to 43713 states and 67798 transitions. [2020-10-29 12:24:05,032 INFO L78 Accepts]: Start accepts. Automaton has 43713 states and 67798 transitions. Word has length 139 [2020-10-29 12:24:05,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:24:05,032 INFO L481 AbstractCegarLoop]: Abstraction has 43713 states and 67798 transitions. [2020-10-29 12:24:05,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:24:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 43713 states and 67798 transitions. [2020-10-29 12:24:05,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-29 12:24:05,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:24:05,124 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] [2020-10-29 12:24:05,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:24:05,124 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:24:05,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:24:05,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2019910844, now seen corresponding path program 1 times [2020-10-29 12:24:05,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:24:05,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616501338] [2020-10-29 12:24:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:24:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:05,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:05,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:05,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:05,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:06,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:06,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:07,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:07,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:10,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:10,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 12:24:10,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 12:24:10,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 12:24:10,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:10,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:24:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:24:10,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 12:24:10,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:10,859 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:24:10,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:24:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:10,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:10,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:10,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:24:10,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:10,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 12:24:10,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:10,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:10,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:10,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:10,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:24:10,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:10,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:24:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:10,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:11,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:11,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 12:24:11,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:11,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 12:24:11,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:11,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:24:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:11,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 12:24:11,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:11,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:24:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:11,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:11,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:11,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:24:11,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:11,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:24:11,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:11,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:11,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:24:11,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:11,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:24:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:11,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:11,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:11,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:11,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:24:11,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:11,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:24:11,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:11,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:24:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:11,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:11,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:11,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:11,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:11,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:24:11,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:11,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:11,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:24:11,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:11,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:24:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:11,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:11,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:11,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:24:11,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:11,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 12:24:11,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:11,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:24:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:24:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:24:11,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:11,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:24:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:11,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:11,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:11,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:11,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:24:11,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:11,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:11,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:11,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:11,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-29 12:24:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:11,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:11,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:11,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:11,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:11,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:24:11,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:11,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:11,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:11,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:11,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:11,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:24:11,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616501338] [2020-10-29 12:24:11,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:24:11,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:24:11,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397656823] [2020-10-29 12:24:11,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:24:11,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:24:11,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:24:11,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:24:11,552 INFO L87 Difference]: Start difference. First operand 43713 states and 67798 transitions. Second operand 15 states. [2020-10-29 12:24:12,304 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:24:12,945 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:24:18,091 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-29 12:24:19,217 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-29 12:24:19,481 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-29 12:24:20,065 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-29 12:24:20,738 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:24:20,996 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:24:21,307 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-29 12:24:22,088 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-29 12:24:23,401 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:24:24,014 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:24:24,497 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:24:24,710 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-29 12:24:24,927 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:24:25,302 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-29 12:24:25,572 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:24:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:24:26,120 INFO L93 Difference]: Finished difference Result 62248 states and 96758 transitions. [2020-10-29 12:24:26,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:24:26,121 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 140 [2020-10-29 12:24:26,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:24:26,331 INFO L225 Difference]: With dead ends: 62248 [2020-10-29 12:24:26,331 INFO L226 Difference]: Without dead ends: 59409 [2020-10-29 12:24:26,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=293, Invalid=829, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 12:24:26,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59409 states. [2020-10-29 12:24:31,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59409 to 50619. [2020-10-29 12:24:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50619 states. [2020-10-29 12:24:31,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50619 states to 50619 states and 78894 transitions. [2020-10-29 12:24:31,498 INFO L78 Accepts]: Start accepts. Automaton has 50619 states and 78894 transitions. Word has length 140 [2020-10-29 12:24:31,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:24:31,499 INFO L481 AbstractCegarLoop]: Abstraction has 50619 states and 78894 transitions. [2020-10-29 12:24:31,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:24:31,499 INFO L276 IsEmpty]: Start isEmpty. Operand 50619 states and 78894 transitions. [2020-10-29 12:24:31,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-29 12:24:31,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:24:31,559 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] [2020-10-29 12:24:31,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:24:31,560 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:24:31,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:24:31,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1510437754, now seen corresponding path program 1 times [2020-10-29 12:24:31,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:24:31,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798656812] [2020-10-29 12:24:31,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:24:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:31,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:31,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:31,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:32,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:32,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:32,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 12:24:36,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:24:36,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 12:24:36,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:24:36,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:24:36,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 12:24:36,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,341 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:24:37,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:24:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:37,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:37,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:37,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:24:37,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 12:24:37,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:37,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:24:37,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:24:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:37,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:37,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:37,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 12:24:37,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:37,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 12:24:37,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:37,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:24:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:37,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 12:24:37,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:24:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:37,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:37,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:37,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:24:37,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:37,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:24:37,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:37,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:37,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:37,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:37,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:24:37,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:24:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:37,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:37,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:37,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:37,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:24:37,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:37,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:24:37,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 12:24:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:37,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:37,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:37,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:37,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:37,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:24:37,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:37,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:37,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:37,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:24:37,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:24:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:37,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:37,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:37,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:24:37,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:37,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:24:37,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:37,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:24:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:24:37,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:24:37,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:24:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:37,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:37,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:37,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:37,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:37,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:24:37,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:37,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-29 12:24:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:37,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:37,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:37,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:37,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:24:37,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:37,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:37,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:37,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:37,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:24:37,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798656812] [2020-10-29 12:24:37,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:24:37,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:24:37,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847977639] [2020-10-29 12:24:37,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:24:37,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:24:37,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:24:37,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:24:37,964 INFO L87 Difference]: Start difference. First operand 50619 states and 78894 transitions. Second operand 15 states. [2020-10-29 12:24:38,715 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:24:39,318 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:24:43,956 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-29 12:24:45,016 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-29 12:24:45,210 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-29 12:24:45,783 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-29 12:24:46,393 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:24:46,712 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:24:47,330 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-29 12:24:48,629 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:24:49,154 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:24:49,637 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-29 12:24:49,961 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-29 12:24:50,213 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-29 12:24:50,491 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-29 12:24:50,697 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-29 12:24:51,097 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:24:51,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:24:51,612 INFO L93 Difference]: Finished difference Result 62396 states and 96784 transitions. [2020-10-29 12:24:51,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:24:51,613 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 140 [2020-10-29 12:24:51,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:24:51,828 INFO L225 Difference]: With dead ends: 62396 [2020-10-29 12:24:51,828 INFO L226 Difference]: Without dead ends: 59429 [2020-10-29 12:24:51,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 12:24:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59429 states.