/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:40:14,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:40:14,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:40:14,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:40:14,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:40:14,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:40:14,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:40:14,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:40:14,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:40:14,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:40:14,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:40:14,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:40:14,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:40:14,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:40:14,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:40:14,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:40:14,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:40:14,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:40:14,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:40:14,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:40:14,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:40:14,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:40:14,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:40:14,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:40:14,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:40:14,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:40:14,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:40:14,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:40:14,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:40:14,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:40:14,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:40:14,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:40:14,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:40:14,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:40:14,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:40:14,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:40:14,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:40:14,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:40:14,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:40:14,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:40:14,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:40:14,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 12:40:14,583 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:40:14,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:40:14,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:40:14,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:40:14,589 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:40:14,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:40:14,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:40:14,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:40:14,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:40:14,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:40:14,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:40:14,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:40:14,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:40:14,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:40:14,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:40:14,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:40:14,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:40:14,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:40:14,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:40:14,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:40:14,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:40:14,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:40:14,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:40:14,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:40:14,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:40:14,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:40:14,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:40:14,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:40:14,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:40:14,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:40:14,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:40:15,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:40:15,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:40:15,036 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:40:15,036 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:40:15,038 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c [2020-10-29 12:40:15,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54f87eb72/f5d1f36bac4c4139a4ccb62e8806df2c/FLAG83963fee3 [2020-10-29 12:40:15,773 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:40:15,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c [2020-10-29 12:40:15,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54f87eb72/f5d1f36bac4c4139a4ccb62e8806df2c/FLAG83963fee3 [2020-10-29 12:40:16,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54f87eb72/f5d1f36bac4c4139a4ccb62e8806df2c [2020-10-29 12:40:16,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:40:16,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:40:16,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:40:16,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:40:16,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:40:16,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1c635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16, skipping insertion in model container [2020-10-29 12:40:16,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:40:16,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:40:16,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:40:16,455 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:40:16,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:40:16,622 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:40:16,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16 WrapperNode [2020-10-29 12:40:16,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:40:16,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:40:16,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:40:16,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:40:16,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (1/1) ... [2020-10-29 12:40:16,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:40:16,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:40:16,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:40:16,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:40:16,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:40:16,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:40:16,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:40:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:40:16,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:40:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:40:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:40:16,817 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:40:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:40:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-29 12:40:16,818 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-29 12:40:16,819 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:40:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:40:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:40:16,820 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:40:16,820 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:40:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:40:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:40:16,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:40:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:40:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:40:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-29 12:40:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:40:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:40:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:40:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:40:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:40:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:40:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:40:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:40:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-29 12:40:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-29 12:40:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:40:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:40:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:40:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:40:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:40:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:40:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:40:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:40:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:40:17,927 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:40:17,927 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:40:17,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:40:17 BoogieIcfgContainer [2020-10-29 12:40:17,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:40:17,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:40:17,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:40:17,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:40:17,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:40:16" (1/3) ... [2020-10-29 12:40:17,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e392602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:40:17, skipping insertion in model container [2020-10-29 12:40:17,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:40:16" (2/3) ... [2020-10-29 12:40:17,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e392602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:40:17, skipping insertion in model container [2020-10-29 12:40:17,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:40:17" (3/3) ... [2020-10-29 12:40:17,938 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.ufo.UNBOUNDED.pals.c [2020-10-29 12:40:17,949 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:40:17,955 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:40:17,968 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:40:17,996 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:40:17,997 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:40:17,997 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:40:17,997 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:40:17,997 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:40:17,997 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:40:17,997 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:40:17,997 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:40:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states. [2020-10-29 12:40:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-29 12:40:18,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:40:18,033 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] [2020-10-29 12:40:18,033 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:40:18,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:40:18,040 INFO L82 PathProgramCache]: Analyzing trace with hash 2105430690, now seen corresponding path program 1 times [2020-10-29 12:40:18,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:40:18,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980920875] [2020-10-29 12:40:18,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:40:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:18,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:18,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:18,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 12:40:18,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 434 [2020-10-29 12:40:18,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:18,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 12:40:18,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:18,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:40:19,405 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:40:19,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:40:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:40:19,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 12:40:19,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:19,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:40:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:40:19,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:40:19,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:19,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:19,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:40:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:40:19,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:40:19,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:40:19,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:19,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:40:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:40:19,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:40:19,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:40:19,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:19,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:40:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:19,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:40:19,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:19,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:40:19,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:40:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:19,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:40:19,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:19,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:19,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:40:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:19,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:40:19,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:19,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:19,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:40:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:19,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:40:19,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:19,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:19,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 12:40:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:19,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:40:19,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:19,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:19,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:40:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:19,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:19,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:19,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:40:19,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:19,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:40:19,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:19,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:19,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:19,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:40:19,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:19,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:19,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:40:19,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980920875] [2020-10-29 12:40:19,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:40:19,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 12:40:19,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061429619] [2020-10-29 12:40:19,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 12:40:19,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:40:19,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 12:40:19,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:40:19,979 INFO L87 Difference]: Start difference. First operand 190 states. Second operand 9 states. [2020-10-29 12:40:20,512 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:40:20,915 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:21,300 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:21,675 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:22,067 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:22,440 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:22,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:40:22,761 INFO L93 Difference]: Finished difference Result 323 states and 488 transitions. [2020-10-29 12:40:22,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 12:40:22,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-10-29 12:40:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:40:22,774 INFO L225 Difference]: With dead ends: 323 [2020-10-29 12:40:22,775 INFO L226 Difference]: Without dead ends: 189 [2020-10-29 12:40:22,779 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:40:22,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-29 12:40:22,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 182. [2020-10-29 12:40:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-29 12:40:22,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 281 transitions. [2020-10-29 12:40:22,841 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 281 transitions. Word has length 76 [2020-10-29 12:40:22,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:40:22,841 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 281 transitions. [2020-10-29 12:40:22,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 12:40:22,841 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 281 transitions. [2020-10-29 12:40:22,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-29 12:40:22,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:40:22,846 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] [2020-10-29 12:40:22,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:40:22,846 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:40:22,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:40:22,847 INFO L82 PathProgramCache]: Analyzing trace with hash -227961948, now seen corresponding path program 1 times [2020-10-29 12:40:22,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:40:22,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636084393] [2020-10-29 12:40:22,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:40:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:22,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:23,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:23,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 12:40:23,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:23,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-10-29 12:40:23,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:23,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:23,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:40:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:40:23,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:40:23,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:24,318 WARN L193 SmtUtils]: Spent 542.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:40:24,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:40:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:40:24,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:40:24,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:24,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:24,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:40:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:40:24,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:40:24,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:24,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:24,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:40:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:24,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:40:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:40:24,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:40:24,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:40:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:40:24,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:24,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:40:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:40:24,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:40:24,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:40:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:24,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:40:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:24,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:40:24,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:24,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:24,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:40:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:24,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:40:24,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:24,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:24,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:24,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:40:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:24,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:40:24,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:24,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:24,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:24,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:24,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:40:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:24,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:40:24,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:24,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:40:24,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 12:40:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:24,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:40:24,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:24,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:40:24,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:24,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-29 12:40:24,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:40:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:24,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:24,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:24,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:40:24,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:24,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:40:24,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:24,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:24,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:40:24,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:24,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:40:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:40:24,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636084393] [2020-10-29 12:40:24,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:40:24,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:40:24,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393092782] [2020-10-29 12:40:24,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:40:24,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:40:24,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:40:24,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:40:24,859 INFO L87 Difference]: Start difference. First operand 182 states and 281 transitions. Second operand 15 states. [2020-10-29 12:40:25,468 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:40:26,070 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-29 12:40:26,855 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-29 12:40:27,471 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-29 12:40:28,508 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:40:29,042 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:29,519 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:29,994 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:30,486 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:30,964 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:31,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:40:31,504 INFO L93 Difference]: Finished difference Result 318 states and 476 transitions. [2020-10-29 12:40:31,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 12:40:31,508 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 76 [2020-10-29 12:40:31,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:40:31,511 INFO L225 Difference]: With dead ends: 318 [2020-10-29 12:40:31,511 INFO L226 Difference]: Without dead ends: 189 [2020-10-29 12:40:31,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-29 12:40:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-29 12:40:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 182. [2020-10-29 12:40:31,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-10-29 12:40:31,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 240 transitions. [2020-10-29 12:40:31,566 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 240 transitions. Word has length 76 [2020-10-29 12:40:31,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:40:31,566 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 240 transitions. [2020-10-29 12:40:31,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:40:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 240 transitions. [2020-10-29 12:40:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 12:40:31,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:40:31,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:40:31,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:40:31,576 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:40:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:40:31,577 INFO L82 PathProgramCache]: Analyzing trace with hash 621467802, now seen corresponding path program 1 times [2020-10-29 12:40:31,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:40:31,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306844514] [2020-10-29 12:40:31,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:40:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:31,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:31,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:31,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:34,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:35,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:36,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:36,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 12:40:36,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:40:36,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 12:40:36,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:36,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:36,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 12:40:36,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 12:40:36,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:40:37,241 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:40:37,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:40:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:40:37,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:40:37,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:37,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:37,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:40:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:40:37,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:40:37,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-29 12:40:37,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 12:40:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:40:37,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:40:37,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:40:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 12:40:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:40:37,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:40:37,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:37,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:37,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:40:37,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:40:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:37,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:40:37,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:37,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:40:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:40:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:37,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:40:37,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:37,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:40:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:40:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:37,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:40:37,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:37,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:37,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:40:37,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:40:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:37,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:40:37,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:37,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:37,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:40:37,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:40:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:37,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:40:37,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:40:37,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:40:37,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:40:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:37,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:37,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:37,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:40:37,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:37,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:40:37,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:37,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:40:37,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:37,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:37,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:40:37,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306844514] [2020-10-29 12:40:37,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:40:37,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:40:37,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480626289] [2020-10-29 12:40:37,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:40:37,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:40:37,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:40:37,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:40:37,724 INFO L87 Difference]: Start difference. First operand 182 states and 240 transitions. Second operand 12 states. [2020-10-29 12:40:38,315 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-29 12:40:38,944 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:40:39,341 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:39,742 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:40,152 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:40,527 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:40:40,914 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:41,102 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 12:40:41,538 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:40:41,873 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:42,151 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:42,435 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:42,758 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:43,095 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:40:43,301 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:40:43,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:40:43,590 INFO L93 Difference]: Finished difference Result 429 states and 597 transitions. [2020-10-29 12:40:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 12:40:43,591 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-29 12:40:43,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:40:43,596 INFO L225 Difference]: With dead ends: 429 [2020-10-29 12:40:43,596 INFO L226 Difference]: Without dead ends: 306 [2020-10-29 12:40:43,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:40:43,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-29 12:40:43,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 290. [2020-10-29 12:40:43,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-10-29 12:40:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 399 transitions. [2020-10-29 12:40:43,637 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 399 transitions. Word has length 116 [2020-10-29 12:40:43,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:40:43,638 INFO L481 AbstractCegarLoop]: Abstraction has 290 states and 399 transitions. [2020-10-29 12:40:43,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:40:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 399 transitions. [2020-10-29 12:40:43,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-29 12:40:43,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:40:43,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:40:43,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:40:43,642 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:40:43,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:40:43,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1996038688, now seen corresponding path program 1 times [2020-10-29 12:40:43,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:40:43,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100235584] [2020-10-29 12:40:43,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:40:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:43,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:43,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:43,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:43,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:44,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:48,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:48,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 12:40:48,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:40:48,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 12:40:48,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:48,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:48,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 12:40:48,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 12:40:48,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 12:40:48,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:49,241 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:40:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:40:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:49,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:49,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:49,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:40:49,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:40:49,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:49,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:40:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:49,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:40:49,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:49,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:40:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:49,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:49,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:49,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:40:49,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:49,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 12:40:49,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:49,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:49,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:40:49,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:49,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 12:40:49,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:49,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 12:40:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:49,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:49,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:49,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:40:49,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:40:49,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:49,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:40:49,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:40:49,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:49,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 12:40:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:49,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:49,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:49,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:40:49,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:49,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:40:49,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:49,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:40:49,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 12:40:49,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:49,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:40:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:49,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:49,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:49,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:49,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:49,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:40:49,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:49,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:40:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:40:49,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:49,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:40:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:49,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:49,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:49,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:49,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:49,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:40:49,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:49,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:40:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:40:49,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:40:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:49,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:49,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:49,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:49,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:49,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:40:49,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:49,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:49,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:49,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:40:49,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:40:49,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:49,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:40:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:49,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:49,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:49,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:40:49,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:49,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:40:49,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:49,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:40:49,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:40:49,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:50,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:40:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:50,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:50,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:50,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:40:50,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:50,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:40:50,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:50,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:40:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:40:50,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 12:40:50,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:50,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 12:40:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:40:50,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:40:50,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:40:50,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:40:50,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:40:50,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:40:50,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:40:50,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:40:50,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:40:50,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:40:50,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:40:50,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:40:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:40:50,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100235584] [2020-10-29 12:40:50,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:40:50,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-29 12:40:50,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258274536] [2020-10-29 12:40:50,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 12:40:50,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:40:50,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 12:40:50,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:40:50,278 INFO L87 Difference]: Start difference. First operand 290 states and 399 transitions. Second operand 22 states. [2020-10-29 12:40:51,091 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-29 12:40:51,704 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-29 12:40:52,269 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:40:52,851 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-29 12:40:53,472 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-29 12:40:54,118 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:40:54,658 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:40:54,998 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:40:55,264 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:40:55,670 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 12:40:55,853 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-29 12:40:56,341 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:40:56,510 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:56,861 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:57,091 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 12:40:57,295 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 12:40:57,716 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-29 12:40:58,095 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:40:58,262 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:40:58,650 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:40:58,859 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:40:59,111 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:40:59,339 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:40:59,823 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-29 12:41:00,080 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 12:41:00,455 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:41:00,621 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:41:01,090 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:41:01,398 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:41:01,627 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:41:01,950 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:41:02,229 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:02,800 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-29 12:41:03,057 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 12:41:03,311 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:41:03,635 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:41:04,261 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:41:04,803 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:41:05,030 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:41:05,265 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:41:05,514 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:41:05,726 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:41:06,735 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-29 12:41:07,322 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-29 12:41:07,936 WARN L193 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-29 12:41:08,569 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-29 12:41:09,120 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:41:11,459 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:41:11,673 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:11,898 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:41:12,139 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:41:12,332 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 12:41:12,576 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-29 12:41:12,792 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 12:41:13,027 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:41:13,282 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:13,473 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:41:14,333 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:41:14,951 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:41:15,159 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:41:15,380 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:41:15,617 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:41:15,802 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:16,201 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:41:16,431 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:16,659 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:41:16,899 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:41:17,641 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:18,406 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:41:18,809 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:41:19,030 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:41:19,269 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 12:41:19,466 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:19,734 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:19,959 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:41:20,198 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:41:21,556 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:41:21,791 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:41:22,041 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:41:22,271 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:41:22,491 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:41:22,801 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:41:23,049 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 12:41:23,945 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 12:41:24,504 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:41:24,748 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:41:25,001 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:41:25,345 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:41:25,564 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:41:25,915 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:41:27,213 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:41:27,466 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 12:41:27,730 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:41:27,996 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:41:28,240 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:41:28,802 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 12:41:29,267 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-10-29 12:41:29,520 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 12:41:29,803 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:41:30,079 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-29 12:41:30,313 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:41:31,648 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-29 12:41:32,576 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:41:32,865 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 12:41:33,364 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:41:33,618 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:41:34,132 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:41:34,388 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:41:34,888 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:41:35,134 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:41:35,633 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:41:35,875 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-29 12:41:36,164 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-29 12:41:36,863 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2020-10-29 12:41:37,145 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:42:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:42:05,605 INFO L93 Difference]: Finished difference Result 4670 states and 7797 transitions. [2020-10-29 12:42:05,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2020-10-29 12:42:05,607 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 117 [2020-10-29 12:42:05,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:42:05,653 INFO L225 Difference]: With dead ends: 4670 [2020-10-29 12:42:05,653 INFO L226 Difference]: Without dead ends: 4439 [2020-10-29 12:42:05,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16323 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=6770, Invalid=30286, Unknown=0, NotChecked=0, Total=37056 [2020-10-29 12:42:05,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4439 states. [2020-10-29 12:42:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4439 to 3134. [2020-10-29 12:42:06,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3134 states. [2020-10-29 12:42:06,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 4634 transitions. [2020-10-29 12:42:06,179 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 4634 transitions. Word has length 117 [2020-10-29 12:42:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:42:06,181 INFO L481 AbstractCegarLoop]: Abstraction has 3134 states and 4634 transitions. [2020-10-29 12:42:06,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 12:42:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 4634 transitions. [2020-10-29 12:42:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-29 12:42:06,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:42:06,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:42:06,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:42:06,185 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:42:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:42:06,186 INFO L82 PathProgramCache]: Analyzing trace with hash 580008481, now seen corresponding path program 1 times [2020-10-29 12:42:06,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:42:06,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860321350] [2020-10-29 12:42:06,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:42:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:06,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:06,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:06,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:06,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:06,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:11,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:11,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 12:42:11,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:42:11,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 12:42:11,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:11,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:42:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 12:42:11,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 12:42:11,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:42:11,815 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:42:11,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:42:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:11,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:11,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:11,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:42:11,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:11,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:42:11,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:11,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:11,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:11,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:42:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:11,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:11,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:11,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:42:11,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:11,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:42:11,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:11,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:11,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:11,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:11,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 12:42:11,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:11,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 12:42:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:11,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:11,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:11,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:42:11,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:11,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:11,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:11,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:11,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:42:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 12:42:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:11,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:11,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:11,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:11,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:42:11,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:11,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:11,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:42:11,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:42:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:11,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:11,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:11,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:11,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:11,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:42:11,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:11,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:11,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:42:11,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:12,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:42:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:12,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:12,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:12,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:12,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:12,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:42:12,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:12,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:12,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:42:12,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:12,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:42:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:12,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:12,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:12,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:12,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:12,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:42:12,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:12,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:42:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:42:12,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:42:12,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:12,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:42:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:12,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:12,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:12,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:12,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:12,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:12,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:12,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:42:12,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:12,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:12,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:42:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:12,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:12,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:12,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:12,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:12,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:12,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:12,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:42:12,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:12,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:12,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 12:42:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:12,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:12,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:12,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:12,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:12,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:12,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:12,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:12,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:42:12,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:12,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:42:12,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860321350] [2020-10-29 12:42:12,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:42:12,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:42:12,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324140378] [2020-10-29 12:42:12,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:42:12,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:42:12,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:42:12,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:42:12,299 INFO L87 Difference]: Start difference. First operand 3134 states and 4634 transitions. Second operand 12 states. [2020-10-29 12:42:12,866 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-29 12:42:13,450 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:42:13,811 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:14,122 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:14,511 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:42:14,669 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:14,901 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:15,286 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:15,776 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:42:16,074 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:16,371 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:16,710 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:42:16,923 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:42:17,167 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:17,515 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:42:18,111 INFO L93 Difference]: Finished difference Result 9254 states and 13608 transitions. [2020-10-29 12:42:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 12:42:18,113 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 118 [2020-10-29 12:42:18,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:42:18,145 INFO L225 Difference]: With dead ends: 9254 [2020-10-29 12:42:18,145 INFO L226 Difference]: Without dead ends: 6179 [2020-10-29 12:42:18,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:42:18,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2020-10-29 12:42:18,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 5864. [2020-10-29 12:42:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5864 states. [2020-10-29 12:42:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5864 states to 5864 states and 8641 transitions. [2020-10-29 12:42:18,654 INFO L78 Accepts]: Start accepts. Automaton has 5864 states and 8641 transitions. Word has length 118 [2020-10-29 12:42:18,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:42:18,654 INFO L481 AbstractCegarLoop]: Abstraction has 5864 states and 8641 transitions. [2020-10-29 12:42:18,654 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:42:18,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5864 states and 8641 transitions. [2020-10-29 12:42:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-29 12:42:18,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:42:18,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:42:18,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:42:18,658 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:42:18,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:42:18,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1574978653, now seen corresponding path program 1 times [2020-10-29 12:42:18,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:42:18,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336869463] [2020-10-29 12:42:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:42:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:18,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:18,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:18,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:18,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:23,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:23,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 12:42:23,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:42:23,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 12:42:23,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:23,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:42:23,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 12:42:23,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 12:42:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:24,347 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:42:24,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:42:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:42:24,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:42:24,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:42:24,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:42:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:42:24,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:42:24,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:24,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:24,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 12:42:24,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:42:24,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 12:42:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:42:24,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:24,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:24,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:42:24,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:24,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 12:42:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:24,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:42:24,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:24,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:24,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:42:24,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:24,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:42:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:24,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:42:24,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:42:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:42:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:42:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:24,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:42:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:24,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:24,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:42:24,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:24,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:42:24,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:42:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:24,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:24,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:42:24,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:24,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:24,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:42:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:24,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:24,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:42:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:24,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:24,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:42:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:24,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:24,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:42:24,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:24,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:24,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:42:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:24,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:24,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:24,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:24,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:24,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:24,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:24,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:42:24,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:24,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:42:24,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336869463] [2020-10-29 12:42:24,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:42:24,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:42:24,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472031005] [2020-10-29 12:42:24,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:42:24,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:42:24,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:42:24,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:42:24,862 INFO L87 Difference]: Start difference. First operand 5864 states and 8641 transitions. Second operand 12 states. [2020-10-29 12:42:25,455 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-29 12:42:26,041 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:42:26,479 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-29 12:42:26,648 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:26,859 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:27,245 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:27,483 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:27,863 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:28,276 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:42:28,597 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 12:42:28,802 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:42:29,036 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:29,372 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:29,761 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:30,145 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:30,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:42:30,944 INFO L93 Difference]: Finished difference Result 17386 states and 25417 transitions. [2020-10-29 12:42:30,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 12:42:30,945 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 119 [2020-10-29 12:42:30,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:42:31,006 INFO L225 Difference]: With dead ends: 17386 [2020-10-29 12:42:31,006 INFO L226 Difference]: Without dead ends: 11581 [2020-10-29 12:42:31,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:42:31,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2020-10-29 12:42:31,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 11006. [2020-10-29 12:42:31,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11006 states. [2020-10-29 12:42:32,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11006 states to 11006 states and 16105 transitions. [2020-10-29 12:42:32,005 INFO L78 Accepts]: Start accepts. Automaton has 11006 states and 16105 transitions. Word has length 119 [2020-10-29 12:42:32,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:42:32,007 INFO L481 AbstractCegarLoop]: Abstraction has 11006 states and 16105 transitions. [2020-10-29 12:42:32,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:42:32,007 INFO L276 IsEmpty]: Start isEmpty. Operand 11006 states and 16105 transitions. [2020-10-29 12:42:32,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-29 12:42:32,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:42:32,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:42:32,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:42:32,010 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:42:32,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:42:32,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1844170381, now seen corresponding path program 1 times [2020-10-29 12:42:32,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:42:32,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1273894517] [2020-10-29 12:42:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:42:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:32,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:32,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:32,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:37,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:37,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 12:42:37,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:42:37,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 12:42:37,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:37,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:37,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:42:37,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 12:42:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 12:42:37,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:37,672 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:42:37,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:42:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:37,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:37,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:37,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:42:37,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:37,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:42:37,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:37,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:37,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:37,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:42:37,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:42:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:37,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:37,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:37,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:42:37,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:37,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:42:37,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:37,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:37,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:37,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:37,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:42:37,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:37,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 12:42:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:37,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:37,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:37,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:42:37,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:37,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:37,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:37,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:37,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:37,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:37,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:42:37,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:37,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 12:42:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:37,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:37,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:37,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:37,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:37,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:42:37,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:37,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:37,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:42:37,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:37,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:42:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:37,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:37,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:37,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:37,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:42:37,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:37,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:42:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:37,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:42:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:37,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:37,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:37,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:37,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:37,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:42:37,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:37,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:37,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:42:37,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:42:37,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:42:37,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:37,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:42:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:37,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:37,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:37,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:37,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:37,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:37,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:37,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:42:37,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:37,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:38,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 12:42:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:38,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:38,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:38,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:38,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:38,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:38,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:42:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:38,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:38,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 12:42:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:38,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:38,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:38,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:38,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:38,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:38,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:42:38,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:38,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:38,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-29 12:42:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:38,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:38,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:38,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:38,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:38,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:38,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:38,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:38,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:42:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:38,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:38,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:42:38,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1273894517] [2020-10-29 12:42:38,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:42:38,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:42:38,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886120703] [2020-10-29 12:42:38,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:42:38,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:42:38,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:42:38,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:42:38,167 INFO L87 Difference]: Start difference. First operand 11006 states and 16105 transitions. Second operand 12 states. [2020-10-29 12:42:38,772 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-29 12:42:39,377 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:42:39,787 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:40,077 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:42:40,238 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:40,511 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:40,759 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:41,170 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:41,584 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:42:41,887 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:42,260 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:42:42,487 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 12:42:42,737 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:43,158 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:43,541 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:44,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:42:44,855 INFO L93 Difference]: Finished difference Result 32620 states and 47317 transitions. [2020-10-29 12:42:44,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 12:42:44,856 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 120 [2020-10-29 12:42:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:42:44,949 INFO L225 Difference]: With dead ends: 32620 [2020-10-29 12:42:44,950 INFO L226 Difference]: Without dead ends: 21673 [2020-10-29 12:42:44,982 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:42:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21673 states. [2020-10-29 12:42:46,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21673 to 20630. [2020-10-29 12:42:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20630 states. [2020-10-29 12:42:46,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20630 states to 20630 states and 29917 transitions. [2020-10-29 12:42:46,579 INFO L78 Accepts]: Start accepts. Automaton has 20630 states and 29917 transitions. Word has length 120 [2020-10-29 12:42:46,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:42:46,579 INFO L481 AbstractCegarLoop]: Abstraction has 20630 states and 29917 transitions. [2020-10-29 12:42:46,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:42:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 20630 states and 29917 transitions. [2020-10-29 12:42:46,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-29 12:42:46,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:42:46,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:42:46,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:42:46,582 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:42:46,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:42:46,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1051605881, now seen corresponding path program 1 times [2020-10-29 12:42:46,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:42:46,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497551869] [2020-10-29 12:42:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:42:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:46,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:46,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:47,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:47,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-29 12:42:47,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:42:47,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 996 [2020-10-29 12:42:47,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:47,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:42:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-29 12:42:47,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-29 12:42:47,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,156 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:42:48,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:42:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:42:48,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:42:48,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:48,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:48,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:48,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:42:48,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:42:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:42:48,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:42:48,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:48,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:48,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 12:42:48,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 12:42:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:42:48,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:48,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:48,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:42:48,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 12:42:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:48,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:42:48,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:48,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:48,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:42:48,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:42:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:48,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:42:48,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:48,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:42:48,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:42:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:48,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:42:48,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:48,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:42:48,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 12:42:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:48,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:42:48,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:42:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:42:48,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:42:48,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 12:42:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:48,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:42:48,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:42:48,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:42:48,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:42:48,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 12:42:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:42:48,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:42:48,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:48,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:42:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:48,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 12:42:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:48,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:48,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:42:48,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:42:48,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:42:48,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:42:48,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:42:48,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:42:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:42:48,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:42:48,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:42:48,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:42:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:42:48,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497551869] [2020-10-29 12:42:48,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:42:48,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:42:48,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806869187] [2020-10-29 12:42:48,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:42:48,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:42:48,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:42:48,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:42:48,642 INFO L87 Difference]: Start difference. First operand 20630 states and 29917 transitions. Second operand 12 states. [2020-10-29 12:42:49,279 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-29 12:42:49,865 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:42:50,254 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:50,546 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:50,836 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:51,115 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:51,301 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 12:42:51,555 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:51,962 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:42:52,265 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:52,590 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:52,924 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:42:53,312 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:42:53,535 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:42:53,822 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-29 12:42:56,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:42:56,186 INFO L93 Difference]: Finished difference Result 60860 states and 87569 transitions. [2020-10-29 12:42:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 12:42:56,187 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 121 [2020-10-29 12:42:56,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:42:56,347 INFO L225 Difference]: With dead ends: 60860 [2020-10-29 12:42:56,347 INFO L226 Difference]: Without dead ends: 40289 [2020-10-29 12:42:56,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:42:56,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40289 states. [2020-10-29 12:42:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40289 to 38414. [2020-10-29 12:42:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38414 states. [2020-10-29 12:42:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38414 states to 38414 states and 55213 transitions. [2020-10-29 12:42:59,314 INFO L78 Accepts]: Start accepts. Automaton has 38414 states and 55213 transitions. Word has length 121 [2020-10-29 12:42:59,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:42:59,314 INFO L481 AbstractCegarLoop]: Abstraction has 38414 states and 55213 transitions. [2020-10-29 12:42:59,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:42:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 38414 states and 55213 transitions. [2020-10-29 12:42:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-29 12:42:59,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:42:59,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:42:59,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:42:59,316 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:42:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:42:59,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1692541287, now seen corresponding path program 1 times [2020-10-29 12:42:59,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:42:59,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [408159023] [2020-10-29 12:42:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:42:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:42:59,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:42:59,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:00,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:00,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 12:43:00,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:43:00,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1409 [2020-10-29 12:43:00,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:00,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:43:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 12:43:00,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-29 12:43:00,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:01,412 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-29 12:43:01,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:43:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:01,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:01,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:01,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:43:01,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:01,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:43:01,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:01,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:01,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:43:01,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:43:01,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:43:01,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:01,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:43:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:01,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:01,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:01,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:43:01,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:43:01,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:01,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:43:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:43:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 12:43:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:01,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 12:43:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:01,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:43:01,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:43:01,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:01,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 12:43:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:01,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:01,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:43:01,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:01,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:43:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:01,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:01,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:01,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:43:01,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:01,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:43:01,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:01,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:01,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:43:01,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:43:01,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:43:01,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:01,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:43:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:01,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:01,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:01,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:43:01,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:01,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:43:01,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:01,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:01,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:43:01,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:43:01,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:43:01,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:01,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 12:43:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:01,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:01,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:01,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:43:01,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:01,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:43:01,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:01,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:43:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:43:01,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:43:01,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:01,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 12:43:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:01,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:01,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:01,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:43:01,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:01,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:43:01,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:01,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:01,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:43:01,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:43:01,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:43:01,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:02,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-29 12:43:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:02,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:02,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:02,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:43:02,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:02,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:43:02,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:02,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:43:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:43:02,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:43:02,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:02,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:43:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:43:02,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:43:02,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:43:02,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:43:02,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:43:02,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:43:02,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:43:02,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:43:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:43:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:43:02,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:43:02,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:43:02,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:43:02,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [408159023] [2020-10-29 12:43:02,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:43:02,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-29 12:43:02,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046029552] [2020-10-29 12:43:02,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 12:43:02,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:43:02,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 12:43:02,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:43:02,155 INFO L87 Difference]: Start difference. First operand 38414 states and 55213 transitions. Second operand 21 states. [2020-10-29 12:43:03,038 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 12:43:03,725 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 12:43:04,738 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-29 12:43:05,392 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:05,763 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 12:43:06,750 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 12:43:07,371 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:07,981 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:08,277 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:43:08,520 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:43:08,732 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-29 12:43:08,958 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:43:10,003 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 12:43:10,640 WARN L193 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-29 12:43:11,268 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 12:43:11,897 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-29 12:43:12,569 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 12:43:13,266 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-29 12:43:13,937 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-29 12:43:14,233 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:43:14,482 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:43:14,740 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 12:43:14,975 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:43:15,210 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 12:43:15,450 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:43:15,709 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-29 12:43:15,939 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 12:43:17,487 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 12:43:18,163 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 12:43:18,813 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 12:43:19,470 WARN L193 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 12:43:20,143 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 12:43:20,793 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 12:43:21,463 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 12:43:22,146 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-29 12:43:22,807 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 12:43:23,450 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-29 12:43:24,124 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 12:43:24,800 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-29 12:43:25,455 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 12:43:25,748 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:43:25,988 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:43:26,641 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-29 12:43:27,282 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-29 12:43:27,531 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:43:27,762 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:43:28,015 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:43:28,251 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:43:28,490 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:43:28,717 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:43:28,977 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:43:29,203 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:43:29,436 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:43:29,660 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:43:29,935 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:43:30,284 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:43:30,668 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 12:43:30,883 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:43:33,156 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 12:43:33,865 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 12:43:34,545 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:35,252 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 12:43:35,933 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:36,623 WARN L193 SmtUtils]: Spent 643.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 12:43:37,286 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:37,973 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 12:43:38,623 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:39,336 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:39,999 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:40,679 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:41,336 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:42,035 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:42,686 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:43,395 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:44,045 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:44,721 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:45,367 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:46,076 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:43:46,725 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:47,021 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:43:47,275 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:43:47,947 WARN L193 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:48,658 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-29 12:43:49,327 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:49,966 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-29 12:43:50,647 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:51,289 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-29 12:43:51,556 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:43:51,817 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:52,476 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:43:53,114 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-29 12:43:53,385 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:43:53,638 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:53,896 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:43:54,143 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:54,391 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:43:54,637 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:55,318 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-29 12:43:55,960 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-29 12:43:56,201 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:56,439 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:43:56,679 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:56,932 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:43:57,199 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:57,442 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:43:57,721 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:57,963 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:43:58,207 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:58,452 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:43:58,718 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:43:58,956 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:43:59,319 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:43:59,547 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:43:59,778 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:44:00,017 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:44:00,279 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:44:00,528 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-29 12:44:00,896 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:44:01,146 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 94