/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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.3.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:32:57,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:32:57,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:32:57,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:32:57,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:32:57,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:32:57,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:32:57,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:32:57,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:32:57,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:32:57,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:32:57,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:32:57,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:32:57,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:32:57,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:32:57,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:32:57,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:32:57,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:32:57,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:32:57,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:32:57,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:32:57,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:32:57,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:32:57,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:32:57,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:32:57,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:32:57,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:32:57,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:32:57,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:32:57,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:32:57,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:32:57,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:32:57,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:32:57,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:32:57,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:32:57,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:32:57,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:32:57,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:32:57,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:32:57,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:32:57,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:32:57,451 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 [2020-10-28 17:32:57,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:32:57,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:32:57,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:32:57,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:32:57,516 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:32:57,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:32:57,516 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:32:57,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:32:57,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:32:57,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:32:57,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:32:57,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:32:57,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:32:57,519 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:32:57,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:32:57,519 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:32:57,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:32:57,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:32:57,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:32:57,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:32:57,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:32:57,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:32:57,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:32:57,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:32:57,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:32:57,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:32:57,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:32:57,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:32:57,521 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:32:57,522 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:32:57,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:32:57,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:32:57,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:32:57,963 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:32:57,964 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:32:57,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:32:58,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a075f21e/e3f2e4bb49b640268d68d67224ea9716/FLAG000d3dd98 [2020-10-28 17:32:58,782 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:32:58,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:32:58,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a075f21e/e3f2e4bb49b640268d68d67224ea9716/FLAG000d3dd98 [2020-10-28 17:32:59,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a075f21e/e3f2e4bb49b640268d68d67224ea9716 [2020-10-28 17:32:59,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:32:59,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:32:59,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:32:59,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:32:59,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:32:59,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57972310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59, skipping insertion in model container [2020-10-28 17:32:59,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:32:59,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:32:59,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:32:59,483 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:32:59,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:32:59,631 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:32:59,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59 WrapperNode [2020-10-28 17:32:59,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:32:59,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:32:59,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:32:59,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:32:59,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (1/1) ... [2020-10-28 17:32:59,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:32:59,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:32:59,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:32:59,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:32:59,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (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 [2020-10-28 17:32:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:32:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:32:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:32:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 17:32:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-28 17:32:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-28 17:32:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-28 17:32:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-28 17:32:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-28 17:32:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:32:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-28 17:32:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:32:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:32:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:32:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:32:59,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-28 17:32:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-28 17:32:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 17:32:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-28 17:32:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 17:32:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-28 17:32:59,858 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-28 17:32:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-28 17:32:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-28 17:32:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-28 17:32:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-28 17:32:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-28 17:32:59,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:32:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:32:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:32:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:32:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:32:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:32:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:33:00,858 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:33:00,858 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 17:33:00,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:33:00 BoogieIcfgContainer [2020-10-28 17:33:00,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:33:00,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:33:00,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:33:00,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:33:00,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:32:59" (1/3) ... [2020-10-28 17:33:00,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cf0c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:33:00, skipping insertion in model container [2020-10-28 17:33:00,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:32:59" (2/3) ... [2020-10-28 17:33:00,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cf0c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:33:00, skipping insertion in model container [2020-10-28 17:33:00,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:33:00" (3/3) ... [2020-10-28 17:33:00,878 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.UNBOUNDED.pals.c [2020-10-28 17:33:00,921 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:33:00,928 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:33:00,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:33:01,000 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:33:01,000 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:33:01,000 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:33:01,001 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:33:01,001 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:33:01,001 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:33:01,001 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:33:01,002 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:33:01,037 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-10-28 17:33:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 17:33:01,059 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:33:01,060 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] [2020-10-28 17:33:01,061 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:33:01,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:33:01,073 INFO L82 PathProgramCache]: Analyzing trace with hash 269946393, now seen corresponding path program 1 times [2020-10-28 17:33:01,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:33:01,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511034790] [2020-10-28 17:33:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:33:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:01,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:01,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:01,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 17:33:01,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:01,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-10-28 17:33:01,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:01,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-28 17:33:01,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:01,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:33:02,341 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:33:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:33:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:02,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:02,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:02,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:33:02,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:02,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:33:02,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:02,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:02,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:02,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:02,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:02,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:33:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:02,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:02,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:02,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 17:33:02,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:33:02,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:02,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:02,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:02,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:02,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 17:33:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:02,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:02,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:02,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:33:02,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:02,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:33:02,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:02,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:02,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:33:02,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:02,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:02,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 17:33:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:02,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:02,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:02,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:02,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:02,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:33:02,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:02,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:02,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:02,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 17:33:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:02,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:02,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:02,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:02,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:02,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:33:02,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:02,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:02,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:02,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:02,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:02,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:02,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:33:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:02,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:02,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:02,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:02,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:02,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:33:02,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:02,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:02,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:02,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:02,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:02,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:33:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:02,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:02,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:02,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:02,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:02,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:33:02,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:02,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:02,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:02,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:33:02,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511034790] [2020-10-28 17:33:02,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:33:02,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:33:02,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332115116] [2020-10-28 17:33:02,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:33:02,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:33:02,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:33:02,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:33:02,651 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 6 states. [2020-10-28 17:33:03,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:33:03,921 INFO L93 Difference]: Finished difference Result 271 states and 426 transitions. [2020-10-28 17:33:03,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:33:03,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-10-28 17:33:03,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:33:03,936 INFO L225 Difference]: With dead ends: 271 [2020-10-28 17:33:03,936 INFO L226 Difference]: Without dead ends: 169 [2020-10-28 17:33:03,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:33:03,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-28 17:33:04,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 154. [2020-10-28 17:33:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-28 17:33:04,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 244 transitions. [2020-10-28 17:33:04,010 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 244 transitions. Word has length 63 [2020-10-28 17:33:04,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:33:04,011 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 244 transitions. [2020-10-28 17:33:04,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:33:04,011 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 244 transitions. [2020-10-28 17:33:04,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 17:33:04,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:33:04,015 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] [2020-10-28 17:33:04,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:33:04,016 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:33:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:33:04,017 INFO L82 PathProgramCache]: Analyzing trace with hash -124420393, now seen corresponding path program 1 times [2020-10-28 17:33:04,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:33:04,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833802170] [2020-10-28 17:33:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:33:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:04,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:04,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:04,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-28 17:33:04,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:04,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 879 [2020-10-28 17:33:04,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:04,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:33:04,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-28 17:33:04,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:33:04,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:05,343 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:33:05,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:33:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:05,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:05,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:05,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:33:05,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:05,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:33:05,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:05,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:05,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:05,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:05,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:05,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:05,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:33:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:05,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:05,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:05,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 17:33:05,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:05,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 17:33:05,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:05,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:05,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:33:05,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:05,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 17:33:05,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:05,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 17:33:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:05,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:05,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:05,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:33:05,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:33:05,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:05,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:33:05,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 17:33:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:33:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:05,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-28 17:33:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:05,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:05,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:05,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:05,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:05,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:33:05,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:05,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:05,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:05,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:05,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-28 17:33:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:05,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:05,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:05,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:05,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:05,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:33:05,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:05,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:05,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:05,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:05,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:05,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:05,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 17:33:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:05,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:05,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:05,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:05,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:05,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:33:05,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:05,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:05,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:05,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:05,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:05,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:33:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:05,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:05,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:05,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:05,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:05,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:33:05,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:05,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:05,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:05,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:33:05,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833802170] [2020-10-28 17:33:05,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:33:05,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-28 17:33:05,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501192877] [2020-10-28 17:33:05,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:33:05,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:33:05,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:33:05,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:33:05,730 INFO L87 Difference]: Start difference. First operand 154 states and 244 transitions. Second operand 12 states. [2020-10-28 17:33:06,485 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:33:06,851 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-28 17:33:07,289 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:33:07,617 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:33:09,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:33:09,371 INFO L93 Difference]: Finished difference Result 266 states and 414 transitions. [2020-10-28 17:33:09,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 17:33:09,372 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 63 [2020-10-28 17:33:09,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:33:09,377 INFO L225 Difference]: With dead ends: 266 [2020-10-28 17:33:09,377 INFO L226 Difference]: Without dead ends: 169 [2020-10-28 17:33:09,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-28 17:33:09,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-28 17:33:09,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 154. [2020-10-28 17:33:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-28 17:33:09,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 223 transitions. [2020-10-28 17:33:09,416 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 223 transitions. Word has length 63 [2020-10-28 17:33:09,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:33:09,416 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 223 transitions. [2020-10-28 17:33:09,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:33:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 223 transitions. [2020-10-28 17:33:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-28 17:33:09,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:33:09,420 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] [2020-10-28 17:33:09,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:33:09,420 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:33:09,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:33:09,421 INFO L82 PathProgramCache]: Analyzing trace with hash 455314619, now seen corresponding path program 1 times [2020-10-28 17:33:09,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:33:09,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367326750] [2020-10-28 17:33:09,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:33:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:09,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:09,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:09,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:11,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:14,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:14,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:33:14,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:33:14,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-28 17:33:14,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:14,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:33:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 17:33:14,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:33:14,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:14,800 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:33:14,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:33:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:14,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:14,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:14,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:33:14,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:33:14,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:14,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:14,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:14,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:14,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:33:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:14,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:14,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:14,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 17:33:14,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:14,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 17:33:14,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:14,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:14,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:33:14,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:14,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 17:33:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:14,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:14,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:14,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:33:14,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:14,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:33:14,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:14,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:33:14,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:14,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:33:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:14,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:14,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:14,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:15,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 17:33:15,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:15,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:15,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:33:15,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:15,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 17:33:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:15,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:15,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:15,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:15,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:15,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:33:15,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:15,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:15,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:33:15,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:15,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:33:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:15,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:15,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:15,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:15,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:33:15,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:15,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:33:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:33:15,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:33:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:15,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 17:33:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:15,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:15,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:15,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:15,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:15,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:33:15,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:15,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:15,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:15,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:15,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:15,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:33:15,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367326750] [2020-10-28 17:33:15,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:33:15,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:33:15,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164738809] [2020-10-28 17:33:15,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:33:15,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:33:15,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:33:15,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:33:15,199 INFO L87 Difference]: Start difference. First operand 154 states and 223 transitions. Second operand 9 states. [2020-10-28 17:33:15,542 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:33:18,156 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-28 17:33:18,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:33:18,599 INFO L93 Difference]: Finished difference Result 372 states and 557 transitions. [2020-10-28 17:33:18,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 17:33:18,600 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-10-28 17:33:18,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:33:18,604 INFO L225 Difference]: With dead ends: 372 [2020-10-28 17:33:18,605 INFO L226 Difference]: Without dead ends: 281 [2020-10-28 17:33:18,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:33:18,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-28 17:33:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 244. [2020-10-28 17:33:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-28 17:33:18,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 364 transitions. [2020-10-28 17:33:18,684 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 364 transitions. Word has length 83 [2020-10-28 17:33:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:33:18,686 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 364 transitions. [2020-10-28 17:33:18,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:33:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 364 transitions. [2020-10-28 17:33:18,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-28 17:33:18,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:33:18,700 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] [2020-10-28 17:33:18,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:33:18,701 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:33:18,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:33:18,703 INFO L82 PathProgramCache]: Analyzing trace with hash 571482636, now seen corresponding path program 1 times [2020-10-28 17:33:18,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:33:18,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13276919] [2020-10-28 17:33:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:33:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:18,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:18,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:18,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:18,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:20,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:23,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:23,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-28 17:33:23,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:33:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-28 17:33:23,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:23,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:33:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:33:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 17:33:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:33:24,114 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:33:24,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:33:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:24,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:24,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:24,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:33:24,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:24,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:33:24,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:24,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:24,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:24,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:33:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:24,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:24,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:24,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 17:33:24,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:24,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 17:33:24,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:24,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:33:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:24,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:33:24,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:24,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 17:33:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:24,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:24,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:24,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:33:24,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:24,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:33:24,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:24,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:24,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:33:24,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:24,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 17:33:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:24,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:24,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:24,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:24,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:33:24,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:24,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:33:24,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 17:33:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:24,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:24,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:24,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:24,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:24,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:33:24,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:24,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:24,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:33:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:24,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:33:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:24,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:24,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:24,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:33:24,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:24,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:33:24,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:24,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:24,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:24,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:33:24,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:33:24,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:24,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:33:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:24,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:24,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:24,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:24,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:33:24,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:24,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:24,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:24,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:24,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:24,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:24,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:33:24,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13276919] [2020-10-28 17:33:24,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:33:24,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:33:24,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967625463] [2020-10-28 17:33:24,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:33:24,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:33:24,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:33:24,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:33:24,449 INFO L87 Difference]: Start difference. First operand 244 states and 364 transitions. Second operand 9 states. [2020-10-28 17:33:24,758 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:33:25,081 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:33:25,438 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:33:25,737 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-28 17:33:26,728 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:33:29,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:33:29,468 INFO L93 Difference]: Finished difference Result 754 states and 1132 transitions. [2020-10-28 17:33:29,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:33:29,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-10-28 17:33:29,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:33:29,474 INFO L225 Difference]: With dead ends: 754 [2020-10-28 17:33:29,474 INFO L226 Difference]: Without dead ends: 536 [2020-10-28 17:33:29,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:33:29,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-10-28 17:33:29,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 482. [2020-10-28 17:33:29,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-10-28 17:33:29,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 713 transitions. [2020-10-28 17:33:29,535 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 713 transitions. Word has length 85 [2020-10-28 17:33:29,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:33:29,536 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 713 transitions. [2020-10-28 17:33:29,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:33:29,536 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 713 transitions. [2020-10-28 17:33:29,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-28 17:33:29,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:33:29,539 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] [2020-10-28 17:33:29,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:33:29,539 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:33:29,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:33:29,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1606977311, now seen corresponding path program 1 times [2020-10-28 17:33:29,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:33:29,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317959561] [2020-10-28 17:33:29,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:33:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:29,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:29,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:29,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:29,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:31,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:34,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:34,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-28 17:33:34,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 17:33:34,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-28 17:33:34,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:34,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:33:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:33:34,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 17:33:34,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:34,906 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:33:34,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:33:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:34,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:34,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:34,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:33:34,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:34,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 17:33:34,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:34,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:34,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:34,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:34,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:34,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:33:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:34,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:34,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:35,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:35,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 17:33:35,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:33:35,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-28 17:33:35,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:35,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:33:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:33:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:35,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 17:33:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:35,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:35,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:35,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:33:35,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:35,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:33:35,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:35,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:35,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:35,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:33:35,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:35,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-28 17:33:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:35,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:35,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:35,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:35,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:35,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 17:33:35,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:35,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:33:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:35,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-28 17:33:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:35,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:35,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:35,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:35,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:35,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:33:35,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:35,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:35,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:35,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:33:35,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:35,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 17:33:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:35,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:35,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:35,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:33:35,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:35,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:33:35,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:35,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:35,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:35,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:33:35,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:33:35,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:35,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:33:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:35,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:35,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:35,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:35,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:35,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:33:35,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:35,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:35,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:35,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:33:35,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317959561] [2020-10-28 17:33:35,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:33:35,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:33:35,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568340648] [2020-10-28 17:33:35,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:33:35,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:33:35,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:33:35,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:33:35,366 INFO L87 Difference]: Start difference. First operand 482 states and 713 transitions. Second operand 9 states. [2020-10-28 17:33:35,720 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:33:36,093 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-28 17:33:36,570 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-28 17:33:37,208 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 183 [2020-10-28 17:33:38,190 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:33:41,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:33:41,540 INFO L93 Difference]: Finished difference Result 1820 states and 2691 transitions. [2020-10-28 17:33:41,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 17:33:41,543 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-28 17:33:41,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:33:41,552 INFO L225 Difference]: With dead ends: 1820 [2020-10-28 17:33:41,553 INFO L226 Difference]: Without dead ends: 1395 [2020-10-28 17:33:41,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:33:41,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2020-10-28 17:33:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1266. [2020-10-28 17:33:41,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1266 states. [2020-10-28 17:33:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1859 transitions. [2020-10-28 17:33:41,678 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1859 transitions. Word has length 86 [2020-10-28 17:33:41,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:33:41,679 INFO L481 AbstractCegarLoop]: Abstraction has 1266 states and 1859 transitions. [2020-10-28 17:33:41,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:33:41,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1859 transitions. [2020-10-28 17:33:41,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-28 17:33:41,683 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:33:41,683 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] [2020-10-28 17:33:41,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:33:41,684 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:33:41,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:33:41,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1822162024, now seen corresponding path program 1 times [2020-10-28 17:33:41,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:33:41,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445786597] [2020-10-28 17:33:41,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:33:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:41,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:41,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:44,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:44,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-28 17:33:44,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 17:33:44,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2731 [2020-10-28 17:33:44,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:44,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:33:44,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-28 17:33:44,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 17:33:44,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:44,758 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:33:44,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:33:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:44,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:44,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:44,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:33:44,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:33:44,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:44,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:44,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:44,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:33:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:44,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:44,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:44,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 17:33:44,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:44,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:33:44,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:44,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:44,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:44,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 17:33:44,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:44,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 17:33:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:44,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:44,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:44,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:33:44,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:44,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:33:44,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:44,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:44,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:33:44,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:44,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 17:33:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:44,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:44,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:44,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:44,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:44,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:33:44,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:44,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:44,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:44,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:44,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:33:44,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 17:33:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:44,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:44,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:44,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:44,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:44,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:33:44,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:44,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:33:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:33:44,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:33:44,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:45,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:33:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:45,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:45,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:45,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:33:45,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:45,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:33:45,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:45,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:45,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:45,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:33:45,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:45,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:45,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 17:33:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:45,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:45,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:45,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:45,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:33:45,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:45,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:45,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:33:45,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445786597] [2020-10-28 17:33:45,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:33:45,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:33:45,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672829157] [2020-10-28 17:33:45,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:33:45,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:33:45,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:33:45,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:33:45,098 INFO L87 Difference]: Start difference. First operand 1266 states and 1859 transitions. Second operand 9 states. [2020-10-28 17:33:45,416 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:33:48,226 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-28 17:33:48,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:33:48,708 INFO L93 Difference]: Finished difference Result 3331 states and 5005 transitions. [2020-10-28 17:33:48,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 17:33:48,709 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-10-28 17:33:48,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:33:48,725 INFO L225 Difference]: With dead ends: 3331 [2020-10-28 17:33:48,725 INFO L226 Difference]: Without dead ends: 2432 [2020-10-28 17:33:48,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:33:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2432 states. [2020-10-28 17:33:48,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2432 to 2165. [2020-10-28 17:33:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2165 states. [2020-10-28 17:33:48,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 3227 transitions. [2020-10-28 17:33:48,935 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 3227 transitions. Word has length 87 [2020-10-28 17:33:48,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:33:48,935 INFO L481 AbstractCegarLoop]: Abstraction has 2165 states and 3227 transitions. [2020-10-28 17:33:48,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:33:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 3227 transitions. [2020-10-28 17:33:48,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-28 17:33:48,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:33:48,940 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] [2020-10-28 17:33:48,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:33:48,940 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:33:48,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:33:48,941 INFO L82 PathProgramCache]: Analyzing trace with hash 670288553, now seen corresponding path program 1 times [2020-10-28 17:33:48,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:33:48,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1655546184] [2020-10-28 17:33:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:33:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:48,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:49,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:49,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:49,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:53,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:53,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 17:33:53,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:33:53,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4549 [2020-10-28 17:33:53,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:53,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:33:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:33:53,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:33:53,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:53,912 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:33:53,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:33:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:53,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:53,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:53,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:33:53,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:53,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:33:53,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:53,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:53,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:53,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:53,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:53,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:33:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:53,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:53,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:53,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 17:33:53,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:53,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 17:33:53,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:53,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:53,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:33:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:53,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:33:53,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:54,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 17:33:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:54,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:54,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:54,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:33:54,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:54,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:33:54,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:54,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:33:54,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:54,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 17:33:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:54,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:54,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:54,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:54,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:54,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:33:54,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:54,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:54,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:54,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:33:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:33:54,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:54,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 17:33:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:54,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:54,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:54,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:33:54,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:54,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:33:54,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:54,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:54,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:33:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:33:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:33:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:54,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 17:33:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:54,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:54,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:54,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:33:54,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:54,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:33:54,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:54,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:33:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:33:54,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 17:33:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:33:54,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:33:54,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:33:54,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:33:54,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:33:54,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:33:54,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:33:54,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:33:54,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:33:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:33:54,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:33:54,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:33:54,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:33:54,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1655546184] [2020-10-28 17:33:54,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:33:54,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:33:54,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269821211] [2020-10-28 17:33:54,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:33:54,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:33:54,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:33:54,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:33:54,337 INFO L87 Difference]: Start difference. First operand 2165 states and 3227 transitions. Second operand 9 states. [2020-10-28 17:33:54,653 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:33:54,994 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-28 17:33:55,418 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-28 17:33:56,050 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 183 [2020-10-28 17:33:57,134 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:34:00,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:34:00,483 INFO L93 Difference]: Finished difference Result 7350 states and 11053 transitions. [2020-10-28 17:34:00,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 17:34:00,484 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-10-28 17:34:00,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:34:00,517 INFO L225 Difference]: With dead ends: 7350 [2020-10-28 17:34:00,518 INFO L226 Difference]: Without dead ends: 5229 [2020-10-28 17:34:00,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:34:00,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5229 states. [2020-10-28 17:34:00,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5229 to 4821. [2020-10-28 17:34:00,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4821 states. [2020-10-28 17:34:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4821 states to 4821 states and 7097 transitions. [2020-10-28 17:34:00,984 INFO L78 Accepts]: Start accepts. Automaton has 4821 states and 7097 transitions. Word has length 89 [2020-10-28 17:34:00,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:34:00,984 INFO L481 AbstractCegarLoop]: Abstraction has 4821 states and 7097 transitions. [2020-10-28 17:34:00,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:34:00,985 INFO L276 IsEmpty]: Start isEmpty. Operand 4821 states and 7097 transitions. [2020-10-28 17:34:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-28 17:34:00,996 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:34:00,996 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] [2020-10-28 17:34:00,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:34:00,997 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:34:00,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:34:00,997 INFO L82 PathProgramCache]: Analyzing trace with hash 291020070, now seen corresponding path program 1 times [2020-10-28 17:34:00,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:34:00,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195905449] [2020-10-28 17:34:00,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:34:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:01,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:01,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:03,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2730 [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:34:03,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:04,078 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:34:04,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:34:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:04,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:04,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:04,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:34:04,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:04,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:34:04,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:04,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:04,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:04,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:04,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:34:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:04,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:04,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:04,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:04,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:34:04,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:34:04,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 17:34:04,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:04,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:34:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:04,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:34:04,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:34:04,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 17:34:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:04,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:04,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:34:04,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:34:04,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:04,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:04,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:34:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:34:04,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 17:34:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:04,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:04,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:04,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:34:04,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:04,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:34:04,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:04,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:34:04,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:04,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 17:34:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:04,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:04,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:04,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:04,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:04,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:34:04,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:04,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:04,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 17:34:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:34:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:34:04,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 17:34:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:04,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:04,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:04,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:04,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:04,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:34:04,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:04,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:34:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:04,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 17:34:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:04,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:04,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:04,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:34:04,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:34:04,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:04,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:34:04,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:04,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:34:04,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195905449] [2020-10-28 17:34:04,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:34:04,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:34:04,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908146136] [2020-10-28 17:34:04,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:34:04,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:34:04,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:34:04,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:34:04,501 INFO L87 Difference]: Start difference. First operand 4821 states and 7097 transitions. Second operand 9 states. [2020-10-28 17:34:04,829 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:34:05,176 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-28 17:34:05,624 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:34:06,429 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2020-10-28 17:34:07,127 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:34:10,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:34:10,544 INFO L93 Difference]: Finished difference Result 15855 states and 23713 transitions. [2020-10-28 17:34:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 17:34:10,545 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-10-28 17:34:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:34:10,617 INFO L225 Difference]: With dead ends: 15855 [2020-10-28 17:34:10,617 INFO L226 Difference]: Without dead ends: 11667 [2020-10-28 17:34:10,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:34:10,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11667 states. [2020-10-28 17:34:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11667 to 10862. [2020-10-28 17:34:11,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10862 states. [2020-10-28 17:34:11,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10862 states to 10862 states and 15889 transitions. [2020-10-28 17:34:11,559 INFO L78 Accepts]: Start accepts. Automaton has 10862 states and 15889 transitions. Word has length 90 [2020-10-28 17:34:11,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:34:11,559 INFO L481 AbstractCegarLoop]: Abstraction has 10862 states and 15889 transitions. [2020-10-28 17:34:11,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:34:11,559 INFO L276 IsEmpty]: Start isEmpty. Operand 10862 states and 15889 transitions. [2020-10-28 17:34:11,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-28 17:34:11,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:34:11,576 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] [2020-10-28 17:34:11,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:34:11,576 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:34:11,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:34:11,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1516591160, now seen corresponding path program 1 times [2020-10-28 17:34:11,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:34:11,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359448272] [2020-10-28 17:34:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:34:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:11,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:11,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:11,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:11,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:16,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:16,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:34:16,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:34:16,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-28 17:34:16,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:16,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:16,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:34:16,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:34:16,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 17:34:16,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:16,933 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:34:16,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:34:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:16,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:16,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:16,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:34:16,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:16,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:34:16,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:16,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:16,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:16,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:16,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:34:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:16,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:17,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:17,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-28 17:34:17,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:17,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 17:34:17,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:17,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:34:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:17,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 17:34:17,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:17,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-28 17:34:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:17,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:17,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:17,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:34:17,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:17,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:34:17,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:17,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:34:17,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:17,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 17:34:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:17,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:17,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:17,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:34:17,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:17,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:34:17,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:17,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:17,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:17,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:17,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:34:17,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:17,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 17:34:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:17,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:17,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:17,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:34:17,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:17,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:34:17,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:17,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:34:17,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 17:34:17,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:17,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 17:34:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:17,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:17,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:17,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:34:17,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:17,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:34:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:34:17,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 17:34:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:17,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:17,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:17,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:34:17,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:17,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:34:17,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:17,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:17,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:17,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:34:17,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:17,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:17,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:34:17,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359448272] [2020-10-28 17:34:17,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:34:17,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:34:17,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174313774] [2020-10-28 17:34:17,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:34:17,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:34:17,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:34:17,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:34:17,260 INFO L87 Difference]: Start difference. First operand 10862 states and 15889 transitions. Second operand 9 states. [2020-10-28 17:34:17,585 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:34:17,944 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:34:18,259 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-28 17:34:18,575 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:34:19,505 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:34:23,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:34:23,437 INFO L93 Difference]: Finished difference Result 31838 states and 46887 transitions. [2020-10-28 17:34:23,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:34:23,438 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-10-28 17:34:23,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:34:23,541 INFO L225 Difference]: With dead ends: 31838 [2020-10-28 17:34:23,541 INFO L226 Difference]: Without dead ends: 21036 [2020-10-28 17:34:23,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:34:23,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21036 states. [2020-10-28 17:34:25,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21036 to 20408. [2020-10-28 17:34:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20408 states. [2020-10-28 17:34:25,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20408 states to 20408 states and 29340 transitions. [2020-10-28 17:34:25,299 INFO L78 Accepts]: Start accepts. Automaton has 20408 states and 29340 transitions. Word has length 91 [2020-10-28 17:34:25,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:34:25,300 INFO L481 AbstractCegarLoop]: Abstraction has 20408 states and 29340 transitions. [2020-10-28 17:34:25,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:34:25,300 INFO L276 IsEmpty]: Start isEmpty. Operand 20408 states and 29340 transitions. [2020-10-28 17:34:25,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-28 17:34:25,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:34:25,331 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] [2020-10-28 17:34:25,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:34:25,331 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:34:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:34:25,332 INFO L82 PathProgramCache]: Analyzing trace with hash -777554635, now seen corresponding path program 1 times [2020-10-28 17:34:25,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:34:25,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94967144] [2020-10-28 17:34:25,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:34:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:25,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:25,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:26,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:26,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:34:26,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:34:26,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 963 [2020-10-28 17:34:26,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:26,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:34:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 17:34:26,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-28 17:34:26,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:26,638 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:34:26,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:34:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:26,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:26,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:26,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:34:26,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:26,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:34:26,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:26,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:26,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:26,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:26,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:26,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:26,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:34:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:26,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:26,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:26,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 17:34:26,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:26,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:34:26,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:26,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:26,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:26,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-28 17:34:26,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:26,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:34:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:26,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:26,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:26,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:34:26,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:26,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:34:26,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:26,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:34:26,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:26,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 17:34:26,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:26,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:26,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:26,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:34:26,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:26,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:34:26,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:26,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:34:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:34:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 17:34:26,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:26,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-28 17:34:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:26,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:26,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:26,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:26,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:26,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:34:26,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:26,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:34:26,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:26,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:26,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 17:34:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:26,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:26,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:26,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:26,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:26,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:34:26,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:26,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:26,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:34:26,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:26,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:26,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 17:34:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:26,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:26,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:26,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:34:26,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:34:26,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:26,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:34:26,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:26,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:26,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:34:26,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94967144] [2020-10-28 17:34:26,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:34:26,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:34:26,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407949616] [2020-10-28 17:34:26,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:34:26,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:34:26,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:34:26,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:34:26,996 INFO L87 Difference]: Start difference. First operand 20408 states and 29340 transitions. Second operand 9 states. [2020-10-28 17:34:27,351 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:34:30,038 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-28 17:34:32,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:34:32,468 INFO L93 Difference]: Finished difference Result 52173 states and 75679 transitions. [2020-10-28 17:34:32,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 17:34:32,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2020-10-28 17:34:32,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:34:32,640 INFO L225 Difference]: With dead ends: 52173 [2020-10-28 17:34:32,640 INFO L226 Difference]: Without dead ends: 34107 [2020-10-28 17:34:32,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:34:32,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34107 states. [2020-10-28 17:34:35,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34107 to 32316. [2020-10-28 17:34:35,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32316 states. [2020-10-28 17:34:35,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32316 states to 32316 states and 44818 transitions. [2020-10-28 17:34:35,532 INFO L78 Accepts]: Start accepts. Automaton has 32316 states and 44818 transitions. Word has length 91 [2020-10-28 17:34:35,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:34:35,533 INFO L481 AbstractCegarLoop]: Abstraction has 32316 states and 44818 transitions. [2020-10-28 17:34:35,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:34:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 32316 states and 44818 transitions. [2020-10-28 17:34:35,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 17:34:35,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:34:35,564 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] [2020-10-28 17:34:35,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:34:35,564 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:34:35,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:34:35,565 INFO L82 PathProgramCache]: Analyzing trace with hash 799168962, now seen corresponding path program 1 times [2020-10-28 17:34:35,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:34:35,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074584568] [2020-10-28 17:34:35,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:34:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:35,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:35,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:35,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:36,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2707 [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-28 17:34:38,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:38,609 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:34:38,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:34:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:38,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:38,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:34:38,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:38,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:34:38,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:38,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:38,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:38,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:38,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:38,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:38,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:34:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:38,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:38,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 17:34:38,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:34:38,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 17:34:38,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:38,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:38,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:34:38,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:38,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:34:38,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:38,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 17:34:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:38,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:38,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:34:38,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:38,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:34:38,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:38,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:38,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:38,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:38,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:34:38,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:38,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-28 17:34:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:38,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:38,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:38,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:38,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:34:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:38,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 17:34:38,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:34:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:38,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 17:34:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:38,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:38,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:34:38,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:38,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:34:38,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:38,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:38,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:38,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 17:34:38,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:38,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:38,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 17:34:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:38,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:38,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:38,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:34:38,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:38,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:34:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:38,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 17:34:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:38,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:38,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:38,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:34:38,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:38,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:34:38,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:38,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:38,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:38,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:34:38,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:38,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:34:38,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074584568] [2020-10-28 17:34:38,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:34:38,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 17:34:38,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094407349] [2020-10-28 17:34:38,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 17:34:38,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:34:38,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 17:34:38,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:34:38,950 INFO L87 Difference]: Start difference. First operand 32316 states and 44818 transitions. Second operand 9 states. [2020-10-28 17:34:39,287 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:34:39,652 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-28 17:34:40,028 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-28 17:34:40,918 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 183 [2020-10-28 17:34:41,795 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:34:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:34:48,685 INFO L93 Difference]: Finished difference Result 99291 states and 139425 transitions. [2020-10-28 17:34:48,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 17:34:48,689 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-28 17:34:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:34:49,166 INFO L225 Difference]: With dead ends: 99291 [2020-10-28 17:34:49,166 INFO L226 Difference]: Without dead ends: 68864 [2020-10-28 17:34:49,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-28 17:34:49,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68864 states. [2020-10-28 17:34:54,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68864 to 67679. [2020-10-28 17:34:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67679 states. [2020-10-28 17:34:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67679 states to 67679 states and 92247 transitions. [2020-10-28 17:34:54,409 INFO L78 Accepts]: Start accepts. Automaton has 67679 states and 92247 transitions. Word has length 94 [2020-10-28 17:34:54,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:34:54,410 INFO L481 AbstractCegarLoop]: Abstraction has 67679 states and 92247 transitions. [2020-10-28 17:34:54,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 17:34:54,410 INFO L276 IsEmpty]: Start isEmpty. Operand 67679 states and 92247 transitions. [2020-10-28 17:34:54,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 17:34:54,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:34:54,458 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] [2020-10-28 17:34:54,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:34:54,459 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:34:54,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:34:54,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1391259691, now seen corresponding path program 1 times [2020-10-28 17:34:54,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:34:54,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915527055] [2020-10-28 17:34:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:34:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:54,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:54,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:55,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:55,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 17:34:55,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:34:55,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1031 [2020-10-28 17:34:55,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:55,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:55,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:34:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-28 17:34:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:34:55,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:55,873 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:34:55,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:34:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:55,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:55,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:55,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:34:55,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:55,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:34:55,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:55,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:55,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:55,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:55,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:34:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:55,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:55,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:55,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 17:34:55,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:55,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 17:34:55,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:55,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:55,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:34:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:55,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:34:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:55,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:55,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:55,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:34:55,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:55,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:34:55,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:55,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:55,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:34:55,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:34:55,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:34:55,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:55,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 17:34:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:55,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:56,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:56,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:34:56,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:56,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:34:56,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:56,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:56,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:34:56,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:34:56,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 17:34:56,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:34:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:56,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:56,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:56,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:56,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:56,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:34:56,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:56,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:56,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:34:56,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:56,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:56,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:34:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:56,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:56,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:56,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:34:56,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:34:56,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:56,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:34:56,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:56,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:56,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:34:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:34:56,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:34:56,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:34:56,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:34:56,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:34:56,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 17:34:56,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:34:56,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:34:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:34:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:34:56,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:34:56,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:34:56,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:34:56,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915527055] [2020-10-28 17:34:56,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:34:56,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 17:34:56,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195102584] [2020-10-28 17:34:56,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:34:56,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:34:56,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:34:56,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:34:56,174 INFO L87 Difference]: Start difference. First operand 67679 states and 92247 transitions. Second operand 8 states. [2020-10-28 17:34:56,619 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:34:59,315 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-28 17:35:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:35:04,880 INFO L93 Difference]: Finished difference Result 114354 states and 157684 transitions. [2020-10-28 17:35:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:35:04,881 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-10-28 17:35:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:35:05,453 INFO L225 Difference]: With dead ends: 114354 [2020-10-28 17:35:05,453 INFO L226 Difference]: Without dead ends: 81809 [2020-10-28 17:35:05,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:35:05,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81809 states. [2020-10-28 17:35:11,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81809 to 80561. [2020-10-28 17:35:11,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80561 states. [2020-10-28 17:35:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80561 states to 80561 states and 109597 transitions. [2020-10-28 17:35:11,853 INFO L78 Accepts]: Start accepts. Automaton has 80561 states and 109597 transitions. Word has length 95 [2020-10-28 17:35:11,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:35:11,854 INFO L481 AbstractCegarLoop]: Abstraction has 80561 states and 109597 transitions. [2020-10-28 17:35:11,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:35:11,854 INFO L276 IsEmpty]: Start isEmpty. Operand 80561 states and 109597 transitions. [2020-10-28 17:35:11,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 17:35:11,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:35:11,882 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] [2020-10-28 17:35:11,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 17:35:11,883 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:35:11,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:35:11,883 INFO L82 PathProgramCache]: Analyzing trace with hash 421001109, now seen corresponding path program 1 times [2020-10-28 17:35:11,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:35:11,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964362467] [2020-10-28 17:35:11,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:35:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:12,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:12,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:13,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:13,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 17:35:13,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 17:35:13,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 931 [2020-10-28 17:35:13,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:13,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:35:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 17:35:13,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:35:13,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:13,415 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:35:13,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:35:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:13,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:13,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:13,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:35:13,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:13,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:35:13,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:13,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:13,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:35:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:35:13,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:35:13,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:13,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:35:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:13,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:13,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:13,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-28 17:35:13,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:13,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 17:35:13,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:13,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:35:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:35:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 17:35:13,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:13,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 17:35:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:13,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:13,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:13,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:35:13,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:13,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:35:13,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:13,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:13,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:35:13,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:35:13,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:35:13,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 17:35:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:13,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:13,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:13,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:35:13,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:13,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:35:13,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:13,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:13,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:35:13,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:35:13,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 17:35:13,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:13,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 17:35:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:13,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:13,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:13,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 17:35:13,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:13,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 17:35:13,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:13,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:35:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:35:13,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 17:35:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:13,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:35:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:13,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:13,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:13,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:35:13,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:13,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:35:13,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:13,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:13,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:35:13,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-28 17:35:13,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:35:13,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:13,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:35:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:13,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:13,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:13,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:35:13,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:13,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:35:13,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:13,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:35:13,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-28 17:35:13,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:35:13,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:13,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:35:13,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964362467] [2020-10-28 17:35:13,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:35:13,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 17:35:13,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597560959] [2020-10-28 17:35:13,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:35:13,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:35:13,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:35:13,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:35:13,741 INFO L87 Difference]: Start difference. First operand 80561 states and 109597 transitions. Second operand 8 states. [2020-10-28 17:35:14,116 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-28 17:35:16,753 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-28 17:35:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:35:24,281 INFO L93 Difference]: Finished difference Result 144167 states and 197653 transitions. [2020-10-28 17:35:24,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:35:24,282 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-10-28 17:35:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:35:24,993 INFO L225 Difference]: With dead ends: 144167 [2020-10-28 17:35:24,993 INFO L226 Difference]: Without dead ends: 98386 [2020-10-28 17:35:25,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:35:25,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98386 states. [2020-10-28 17:35:32,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98386 to 96903. [2020-10-28 17:35:32,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96903 states. [2020-10-28 17:35:32,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96903 states to 96903 states and 131236 transitions. [2020-10-28 17:35:32,994 INFO L78 Accepts]: Start accepts. Automaton has 96903 states and 131236 transitions. Word has length 95 [2020-10-28 17:35:32,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:35:32,995 INFO L481 AbstractCegarLoop]: Abstraction has 96903 states and 131236 transitions. [2020-10-28 17:35:32,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:35:32,995 INFO L276 IsEmpty]: Start isEmpty. Operand 96903 states and 131236 transitions. [2020-10-28 17:35:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-28 17:35:33,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:35:33,012 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] [2020-10-28 17:35:33,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 17:35:33,012 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:35:33,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:35:33,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1446747694, now seen corresponding path program 1 times [2020-10-28 17:35:33,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:35:33,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490514658] [2020-10-28 17:35:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:35:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:33,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:33,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-28 17:35:33,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:33,846 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-28 17:35:33,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:35:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:33,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:33,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:33,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:35:33,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:33,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:35:33,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:33,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:35:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:35:33,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:35:33,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:33,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:35:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:33,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:33,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:33,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-28 17:35:33,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:33,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 17:35:33,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:33,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:35:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:35:33,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 17:35:33,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:33,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-28 17:35:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:33,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:33,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:33,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:35:33,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:33,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:35:33,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:33,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:33,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:35:33,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:35:33,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 17:35:33,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:35:34,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 17:35:34,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:34,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:34,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:34,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:35:34,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:34,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:35:34,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:34,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:34,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:35:34,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:35:34,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:35:34,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:34,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 17:35:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:34,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:34,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:34,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:35:34,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:34,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:35:34,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:34,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:34,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:35:34,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:35:34,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:35:34,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:34,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-28 17:35:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:34,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:34,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:34,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 17:35:34,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:34,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 17:35:34,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:34,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:35:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 17:35:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 17:35:34,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:34,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-28 17:35:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:35:34,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:35:34,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:35:34,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 17:35:34,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:35:34,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:35:34,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:35:34,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:35:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 17:35:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 17:35:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:35:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:35:34,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:35:34,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490514658] [2020-10-28 17:35:34,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:35:34,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-28 17:35:34,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990055254] [2020-10-28 17:35:34,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 17:35:34,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:35:34,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 17:35:34,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:35:34,250 INFO L87 Difference]: Start difference. First operand 96903 states and 131236 transitions. Second operand 13 states. [2020-10-28 17:35:34,622 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-28 17:35:35,328 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-28 17:35:35,641 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:35:37,167 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-28 17:35:39,532 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-28 17:35:41,575 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-28 17:36:08,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:36:08,436 INFO L93 Difference]: Finished difference Result 528244 states and 726554 transitions. [2020-10-28 17:36:08,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-28 17:36:08,437 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2020-10-28 17:36:08,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:36:10,780 INFO L225 Difference]: With dead ends: 528244 [2020-10-28 17:36:10,780 INFO L226 Difference]: Without dead ends: 437089 [2020-10-28 17:36:11,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=574, Invalid=1976, Unknown=0, NotChecked=0, Total=2550 [2020-10-28 17:36:11,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437089 states.