/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.7.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:32:15,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:32:15,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:32:15,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:32:15,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:32:15,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:32:15,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:32:15,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:32:15,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:32:15,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:32:15,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:32:15,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:32:15,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:32:15,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:32:15,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:32:15,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:32:15,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:32:15,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:32:15,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:32:15,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:32:15,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:32:15,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:32:15,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:32:15,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:32:15,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:32:15,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:32:15,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:32:15,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:32:15,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:32:15,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:32:15,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:32:15,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:32:15,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:32:15,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:32:15,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:32:15,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:32:15,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:32:15,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:32:15,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:32:15,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:32:15,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:32:15,619 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 12:32:15,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:32:15,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:32:15,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:32:15,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:32:15,683 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:32:15,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:32:15,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:32:15,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:32:15,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:32:15,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:32:15,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:32:15,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:32:15,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:32:15,685 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:32:15,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:32:15,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:32:15,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:32:15,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:32:15,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:32:15,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:32:15,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:32:15,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:32:15,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:32:15,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:32:15,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:32:15,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:32:15,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:32:15,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:32:15,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:32:15,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:32:16,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:32:16,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:32:16,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:32:16,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:32:16,208 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:32:16,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:32:16,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7923601dc/fbb7dad516d34b299ba81576564d3d68/FLAG9f8499880 [2020-10-29 12:32:16,979 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:32:16,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:32:17,006 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7923601dc/fbb7dad516d34b299ba81576564d3d68/FLAG9f8499880 [2020-10-29 12:32:17,276 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7923601dc/fbb7dad516d34b299ba81576564d3d68 [2020-10-29 12:32:17,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:32:17,287 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:32:17,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:32:17,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:32:17,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:32:17,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7966e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17, skipping insertion in model container [2020-10-29 12:32:17,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:32:17,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:32:17,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:32:17,655 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:32:17,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:32:17,774 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:32:17,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17 WrapperNode [2020-10-29 12:32:17,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:32:17,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:32:17,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:32:17,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:32:17,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (1/1) ... [2020-10-29 12:32:17,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:32:17,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:32:17,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:32:17,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:32:17,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (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 12:32:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:32:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:32:17,950 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:32:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:32:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:32:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:32:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:32:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:32:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-29 12:32:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-29 12:32:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-29 12:32:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:32:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:32:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:32:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:32:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:32:17,955 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:32:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:32:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:32:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:32:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:32:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-29 12:32:17,956 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:32:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:32:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:32:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:32:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:32:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:32:17,957 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:32:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:32:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-29 12:32:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-29 12:32:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-29 12:32:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:32:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:32:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:32:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:32:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:32:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:32:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:32:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:32:17,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:32:19,154 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:32:19,154 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:32:19,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:32:19 BoogieIcfgContainer [2020-10-29 12:32:19,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:32:19,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:32:19,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:32:19,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:32:19,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:32:17" (1/3) ... [2020-10-29 12:32:19,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e962fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:32:19, skipping insertion in model container [2020-10-29 12:32:19,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:32:17" (2/3) ... [2020-10-29 12:32:19,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e962fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:32:19, skipping insertion in model container [2020-10-29 12:32:19,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:32:19" (3/3) ... [2020-10-29 12:32:19,170 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:32:19,187 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:32:19,193 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:32:19,209 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:32:19,237 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:32:19,237 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:32:19,237 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:32:19,238 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:32:19,238 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:32:19,238 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:32:19,238 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:32:19,238 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:32:19,263 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-10-29 12:32:19,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 12:32:19,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:19,277 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] [2020-10-29 12:32:19,277 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:19,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:19,284 INFO L82 PathProgramCache]: Analyzing trace with hash 2143651952, now seen corresponding path program 1 times [2020-10-29 12:32:19,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:19,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056534457] [2020-10-29 12:32:19,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:19,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 12:32:21,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1547 [2020-10-29 12:32:21,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:32:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:32:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:32:21,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:32:21,523 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:32:21,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:21,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:21,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:32:21,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:21,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:21,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:21,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:21,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:21,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:32:21,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:32:21,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:21,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:21,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:21,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:32:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:21,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:21,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:32:21,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:21,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:32:21,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:21,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:32:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:21,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:21,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:21,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:21,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:21,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:21,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:32:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:21,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:21,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:21,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:21,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:21,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:21,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:32:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:21,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:21,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:21,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:21,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:21,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:21,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:21,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:32:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:21,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:21,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:32:21,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:21,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:21,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:21,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:21,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:32:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:21,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:21,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:21,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:32:21,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:21,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:21,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:21,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:22,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 12:32:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:22,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:22,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:22,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:22,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:22,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:22,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:22,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:22,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:22,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:22,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:22,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:22,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:32:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:22,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:22,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:22,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:22,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:22,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:22,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:22,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:22,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:22,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:22,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:22,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:22,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 12:32:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:22,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:22,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:22,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:32:22,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:22,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:22,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:22,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:22,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:22,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:32:22,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:22,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:22,129 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 12:32:22,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056534457] [2020-10-29 12:32:22,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:22,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 12:32:22,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431614278] [2020-10-29 12:32:22,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:32:22,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:22,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:32:22,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:32:22,159 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 16 states. [2020-10-29 12:32:22,623 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-29 12:32:22,899 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-29 12:32:23,335 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-29 12:32:23,679 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-29 12:32:26,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:26,392 INFO L93 Difference]: Finished difference Result 285 states and 427 transitions. [2020-10-29 12:32:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:32:26,394 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-10-29 12:32:26,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:26,419 INFO L225 Difference]: With dead ends: 285 [2020-10-29 12:32:26,419 INFO L226 Difference]: Without dead ends: 169 [2020-10-29 12:32:26,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:32:26,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-29 12:32:26,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 168. [2020-10-29 12:32:26,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-29 12:32:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 209 transitions. [2020-10-29 12:32:26,542 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 209 transitions. Word has length 82 [2020-10-29 12:32:26,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:26,544 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 209 transitions. [2020-10-29 12:32:26,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 12:32:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 209 transitions. [2020-10-29 12:32:26,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-29 12:32:26,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:26,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:32:26,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:32:26,559 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:26,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:26,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1079490616, now seen corresponding path program 1 times [2020-10-29 12:32:26,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:26,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996729247] [2020-10-29 12:32:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:26,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:26,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:27,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:27,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:30,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:31,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:31,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 12:32:31,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:32:31,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:32:31,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:31,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:31,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 12:32:31,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-29 12:32:31,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:31,936 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:32:31,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:31,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:31,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:31,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:31,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:31,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:32:31,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:31,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:31,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:31,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:31,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:31,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:31,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:31,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 12:32:32,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 12:32:32,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:32:32,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:32,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:32:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:32,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:32,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:32,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:32,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:32:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:32,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:32:32,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:32,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:32,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:32,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:32,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:32:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:32,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:32:32,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:32,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:32,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:32,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:32:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:32,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:32:32,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:32,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:32,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:32,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:32,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:32:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:32,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:32:32,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:32,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:32,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:32:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:32,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:32:32,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:32,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:32,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:32,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:32:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:32,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:32:32,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:32,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 12:32:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:32,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:32:32,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:32:32,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 12:32:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:32,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:32,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:32,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:32:32,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:32,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:32,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:32,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:32,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:32,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:32:32,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:32,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:32:32,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996729247] [2020-10-29 12:32:32,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:32,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:32:32,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47173493] [2020-10-29 12:32:32,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:32:32,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:32,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:32:32,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:32:32,599 INFO L87 Difference]: Start difference. First operand 168 states and 209 transitions. Second operand 13 states. [2020-10-29 12:32:33,000 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:32:36,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:36,438 INFO L93 Difference]: Finished difference Result 364 states and 485 transitions. [2020-10-29 12:32:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:32:36,438 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 131 [2020-10-29 12:32:36,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:36,445 INFO L225 Difference]: With dead ends: 364 [2020-10-29 12:32:36,445 INFO L226 Difference]: Without dead ends: 264 [2020-10-29 12:32:36,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-29 12:32:36,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-29 12:32:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 259. [2020-10-29 12:32:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-10-29 12:32:36,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 338 transitions. [2020-10-29 12:32:36,507 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 338 transitions. Word has length 131 [2020-10-29 12:32:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:36,509 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 338 transitions. [2020-10-29 12:32:36,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:32:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 338 transitions. [2020-10-29 12:32:36,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-29 12:32:36,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:36,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:32:36,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:32:36,519 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:36,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:36,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1037291794, now seen corresponding path program 1 times [2020-10-29 12:32:36,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:36,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [687083757] [2020-10-29 12:32:36,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:36,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:36,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:36,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:37,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 12:32:41,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:32:41,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 12:32:41,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 12:32:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:32:41,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 12:32:41,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,933 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:32:41,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:41,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:32:41,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:41,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 12:32:42,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 12:32:42,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:32:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:42,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 12:32:42,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:42,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:32:42,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:42,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:32:42,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:42,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:42,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:32:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:32:42,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:42,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:42,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:32:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:32:42,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:42,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:42,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:42,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:32:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:32:42,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:42,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:42,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:42,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:32:42,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:32:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:32:42,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:42,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:42,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:32:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:32:42,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:42,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:32:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:32:42,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:42,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:42,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:42,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 12:32:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:32:42,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:42,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:42,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:42,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 12:32:42,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:32:42,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:42,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:32:42,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:32:42,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,956 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 12:32:42,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [687083757] [2020-10-29 12:32:42,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:42,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-29 12:32:42,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939852002] [2020-10-29 12:32:42,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 12:32:42,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:42,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 12:32:42,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2020-10-29 12:32:42,959 INFO L87 Difference]: Start difference. First operand 259 states and 338 transitions. Second operand 25 states. [2020-10-29 12:32:43,393 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-29 12:32:43,690 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-29 12:32:43,945 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-29 12:32:44,231 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:32:44,546 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-29 12:32:44,853 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-29 12:32:45,155 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-29 12:32:45,506 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:32:45,819 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:32:46,209 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:32:47,424 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:32:48,057 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:32:48,770 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:32:50,332 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:32:51,693 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:32:52,444 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:32:52,688 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:32:52,839 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:32:52,975 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:32:53,113 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:32:54,009 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-29 12:32:54,317 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-29 12:32:54,598 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-29 12:32:54,873 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-29 12:32:55,142 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-29 12:32:55,606 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-29 12:32:57,174 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:32:58,144 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-29 12:32:58,695 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:32:59,512 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:32:59,661 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:32:59,817 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:33:00,125 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:33:00,551 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:33:01,143 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:01,305 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:33:02,042 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:02,195 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:33:02,339 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:33:02,503 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:33:02,656 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:33:02,902 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:33:03,351 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:04,134 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:04,280 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:04,925 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:33:05,082 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:33:06,017 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:06,161 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:06,304 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:33:06,452 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:33:06,843 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:33:06,996 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:33:07,657 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:09,176 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:33:09,346 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:33:09,520 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:33:09,676 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:33:09,857 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:33:10,293 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:33:10,429 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:33:10,569 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:33:10,720 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-29 12:33:12,203 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-29 12:33:13,209 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:33:13,389 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 12:33:13,790 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:14,055 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:33:14,461 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:14,694 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:33:15,042 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:33:15,542 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:33:15,736 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:16,027 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:33:16,209 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:16,386 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:16,821 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2020-10-29 12:33:17,000 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:33:23,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:33:23,109 INFO L93 Difference]: Finished difference Result 3947 states and 6273 transitions. [2020-10-29 12:33:23,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2020-10-29 12:33:23,110 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 131 [2020-10-29 12:33:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:23,151 INFO L225 Difference]: With dead ends: 3947 [2020-10-29 12:33:23,152 INFO L226 Difference]: Without dead ends: 3756 [2020-10-29 12:33:23,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18172 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=7540, Invalid=36770, Unknown=0, NotChecked=0, Total=44310 [2020-10-29 12:33:23,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3756 states. [2020-10-29 12:33:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3756 to 3012. [2020-10-29 12:33:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3012 states. [2020-10-29 12:33:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3012 states to 3012 states and 4287 transitions. [2020-10-29 12:33:23,715 INFO L78 Accepts]: Start accepts. Automaton has 3012 states and 4287 transitions. Word has length 131 [2020-10-29 12:33:23,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:23,718 INFO L481 AbstractCegarLoop]: Abstraction has 3012 states and 4287 transitions. [2020-10-29 12:33:23,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 12:33:23,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3012 states and 4287 transitions. [2020-10-29 12:33:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 12:33:23,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:23,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:33:23,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:33:23,727 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:23,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:23,728 INFO L82 PathProgramCache]: Analyzing trace with hash 733161218, now seen corresponding path program 1 times [2020-10-29 12:33:23,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:23,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819519432] [2020-10-29 12:33:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:23,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:23,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:24,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:26,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:28,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:28,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 12:33:28,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:33:28,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 12:33:28,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:28,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:28,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:28,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:33:28,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-29 12:33:28,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,088 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:33:29,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:33:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:33:29,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:33:29,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:29,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:29,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:33:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 12:33:29,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:33:29,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:33:29,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:33:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:33:29,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:33:29,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:29,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:33:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:29,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:33:29,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:29,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:29,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:29,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:33:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:29,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:33:29,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:29,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:33:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:29,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:29,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:33:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:29,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:33:29,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:29,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:33:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:29,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:33:29,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:33:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:29,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:33:29,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:29,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 12:33:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:29,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:29,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:33:29,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:29,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:33:29,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 12:33:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:29,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:29,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:29,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:33:29,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:33:29,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:33:29,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:29,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:33:29,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:29,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:29,557 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 12:33:29,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819519432] [2020-10-29 12:33:29,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:33:29,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:33:29,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129065181] [2020-10-29 12:33:29,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:33:29,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:33:29,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:33:29,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:33:29,561 INFO L87 Difference]: Start difference. First operand 3012 states and 4287 transitions. Second operand 13 states. [2020-10-29 12:33:29,983 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:33:30,467 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:33:33,042 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-29 12:33:35,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:33:35,420 INFO L93 Difference]: Finished difference Result 11239 states and 16140 transitions. [2020-10-29 12:33:35,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 12:33:35,420 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 133 [2020-10-29 12:33:35,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:35,474 INFO L225 Difference]: With dead ends: 11239 [2020-10-29 12:33:35,474 INFO L226 Difference]: Without dead ends: 8295 [2020-10-29 12:33:35,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 12:33:35,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8295 states. [2020-10-29 12:33:36,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8295 to 8173. [2020-10-29 12:33:36,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8173 states. [2020-10-29 12:33:36,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8173 states to 8173 states and 11587 transitions. [2020-10-29 12:33:36,419 INFO L78 Accepts]: Start accepts. Automaton has 8173 states and 11587 transitions. Word has length 133 [2020-10-29 12:33:36,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:36,419 INFO L481 AbstractCegarLoop]: Abstraction has 8173 states and 11587 transitions. [2020-10-29 12:33:36,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:33:36,419 INFO L276 IsEmpty]: Start isEmpty. Operand 8173 states and 11587 transitions. [2020-10-29 12:33:36,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 12:33:36,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:36,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:33:36,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:33:36,424 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:36,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:36,425 INFO L82 PathProgramCache]: Analyzing trace with hash -530909254, now seen corresponding path program 1 times [2020-10-29 12:33:36,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:36,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808863604] [2020-10-29 12:33:36,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:36,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:36,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:36,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:39,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:41,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:41,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 12:33:41,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:33:41,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 12:33:41,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:41,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:41,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 12:33:41,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:33:41,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 12:33:41,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:41,920 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:33:41,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:33:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:41,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:41,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:41,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:33:41,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:41,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:33:41,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:41,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:41,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:41,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:41,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:41,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:41,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:33:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:41,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 12:33:42,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 12:33:42,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:33:42,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:42,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 12:33:42,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:33:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:33:42,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:33:42,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:42,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:33:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:42,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:33:42,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:42,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:42,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:33:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:42,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:33:42,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:42,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:33:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:42,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:33:42,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:42,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:42,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:42,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:33:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:42,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:33:42,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:42,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:42,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:33:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:42,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:33:42,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:42,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:42,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:33:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:42,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:33:42,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:42,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-29 12:33:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:42,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:33:42,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:42,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:42,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:42,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 12:33:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:42,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:42,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:42,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:33:42,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:33:42,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:42,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:33:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:33:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:42,841 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 12:33:42,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808863604] [2020-10-29 12:33:42,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:33:42,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-10-29 12:33:42,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639911690] [2020-10-29 12:33:42,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 12:33:42,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:33:42,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 12:33:42,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2020-10-29 12:33:42,847 INFO L87 Difference]: Start difference. First operand 8173 states and 11587 transitions. Second operand 25 states. [2020-10-29 12:33:43,294 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-29 12:33:43,557 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-29 12:33:43,831 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-29 12:33:44,128 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:33:44,466 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-29 12:33:44,761 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-29 12:33:45,065 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-29 12:33:45,422 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:33:45,752 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:33:46,133 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-29 12:33:46,425 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:33:46,689 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:46,963 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-29 12:33:47,324 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:47,480 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:33:47,707 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:33:48,296 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:33:48,604 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-29 12:33:48,980 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:33:49,697 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:50,386 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:50,709 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-29 12:33:51,155 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:51,302 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:51,442 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:51,599 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:52,200 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:33:53,057 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:53,395 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-29 12:33:53,898 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:33:54,048 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:54,195 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:54,342 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:33:54,521 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:54,882 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:33:55,066 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 12:33:56,579 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 12:33:57,117 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:57,499 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:33:57,650 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:33:57,796 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:33:57,941 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:33:58,081 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:33:58,343 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:33:58,507 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:33:59,003 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:34:01,502 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:34:01,648 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:34:02,264 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:34:03,035 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:34:03,175 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:34:03,430 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:34:03,952 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:34:05,785 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:34:05,936 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:34:06,080 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:34:06,224 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:34:06,561 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-29 12:34:07,656 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:34:07,813 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:34:07,963 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:34:08,233 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:34:08,905 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:34:09,188 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:34:09,343 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:34:09,991 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:34:10,281 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:34:10,476 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-29 12:34:10,653 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 12:34:11,016 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-29 12:34:11,247 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-29 12:34:11,933 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:34:12,652 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-29 12:34:13,830 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:34:14,333 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:34:14,919 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:34:15,198 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:34:15,504 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:34:15,793 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-29 12:34:16,103 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:34:16,427 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:34:16,722 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:34:17,104 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-29 12:34:17,531 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:34:19,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:34:19,008 INFO L93 Difference]: Finished difference Result 21508 states and 31896 transitions. [2020-10-29 12:34:19,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2020-10-29 12:34:19,009 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 133 [2020-10-29 12:34:19,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:34:19,109 INFO L225 Difference]: With dead ends: 21508 [2020-10-29 12:34:19,109 INFO L226 Difference]: Without dead ends: 13403 [2020-10-29 12:34:19,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13488 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=5651, Invalid=28389, Unknown=0, NotChecked=0, Total=34040 [2020-10-29 12:34:19,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13403 states. [2020-10-29 12:34:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13403 to 11316. [2020-10-29 12:34:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11316 states. [2020-10-29 12:34:20,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11316 states to 11316 states and 16180 transitions. [2020-10-29 12:34:20,378 INFO L78 Accepts]: Start accepts. Automaton has 11316 states and 16180 transitions. Word has length 133 [2020-10-29 12:34:20,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:34:20,379 INFO L481 AbstractCegarLoop]: Abstraction has 11316 states and 16180 transitions. [2020-10-29 12:34:20,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 12:34:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 11316 states and 16180 transitions. [2020-10-29 12:34:20,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 12:34:20,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:34:20,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:34:20,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:34:20,385 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:34:20,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:34:20,386 INFO L82 PathProgramCache]: Analyzing trace with hash 343934684, now seen corresponding path program 1 times [2020-10-29 12:34:20,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:34:20,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723302444] [2020-10-29 12:34:20,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:34:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:20,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:20,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:20,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:21,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:21,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:25,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 12:34:25,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:25,776 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:34:25,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:34:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:25,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:25,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:25,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:34:25,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:25,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:34:25,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:25,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:25,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:25,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:25,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:34:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:25,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:25,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:25,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 12:34:25,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:25,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:34:25,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:25,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:25,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:25,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 12:34:25,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:34:25,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:34:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:25,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:25,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:25,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:34:25,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:34:25,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:25,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:25,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:34:25,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:34:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:34:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:25,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:25,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:25,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:25,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:25,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:34:25,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:25,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:25,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:25,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:25,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:25,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:34:25,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:34:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:25,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:25,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:25,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:25,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:25,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:34:25,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:25,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:25,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:25,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:25,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:25,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:34:26,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:34:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:26,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:26,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:26,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:26,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:26,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:34:26,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:26,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:26,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:34:26,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:34:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:26,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:26,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:26,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:26,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:26,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:34:26,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:26,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:26,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:26,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:26,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:26,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:34:26,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:34:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:26,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:26,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:26,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:26,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:26,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:34:26,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:26,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:26,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:26,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:26,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:26,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:26,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 12:34:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:26,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:26,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:26,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:34:26,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:26,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:34:26,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:26,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:26,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:34:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:34:26,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:34:26,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:34:26,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:34:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:26,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:26,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:26,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:26,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:34:26,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:26,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:26,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:26,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:26,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:34:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:26,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:26,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:26,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:34:26,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:26,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:34:26,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:26,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:34:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:26,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:26,334 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 12:34:26,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723302444] [2020-10-29 12:34:26,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:34:26,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:34:26,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714463110] [2020-10-29 12:34:26,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:34:26,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:34:26,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:34:26,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:34:26,336 INFO L87 Difference]: Start difference. First operand 11316 states and 16180 transitions. Second operand 13 states. [2020-10-29 12:34:26,674 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:34:31,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:34:31,171 INFO L93 Difference]: Finished difference Result 33038 states and 47436 transitions. [2020-10-29 12:34:31,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:34:31,172 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 133 [2020-10-29 12:34:31,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:34:31,275 INFO L225 Difference]: With dead ends: 33038 [2020-10-29 12:34:31,276 INFO L226 Difference]: Without dead ends: 21790 [2020-10-29 12:34:31,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-29 12:34:31,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21790 states. [2020-10-29 12:34:33,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21790 to 21703. [2020-10-29 12:34:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21703 states. [2020-10-29 12:34:33,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21703 states to 21703 states and 30878 transitions. [2020-10-29 12:34:33,320 INFO L78 Accepts]: Start accepts. Automaton has 21703 states and 30878 transitions. Word has length 133 [2020-10-29 12:34:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:34:33,321 INFO L481 AbstractCegarLoop]: Abstraction has 21703 states and 30878 transitions. [2020-10-29 12:34:33,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:34:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 21703 states and 30878 transitions. [2020-10-29 12:34:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 12:34:33,325 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:34:33,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:34:33,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:34:33,326 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:34:33,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:34:33,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1882635564, now seen corresponding path program 1 times [2020-10-29 12:34:33,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:34:33,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584656898] [2020-10-29 12:34:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:34:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:33,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:33,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:33,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:34,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:34,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 12:34:38,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:34:38,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 12:34:38,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:34:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 12:34:38,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 12:34:38,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:38,686 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:34:38,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:34:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:38,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:34:38,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:34:38,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:38,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:34:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:38,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 12:34:38,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:38,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:34:38,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:38,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:34:38,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:38,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:34:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:38,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:34:38,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:38,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:38,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:34:38,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:38,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:34:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:38,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:38,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:38,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:34:38,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:38,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:38,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:38,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:38,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:34:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:38,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:38,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:38,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:34:38,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:38,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:38,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:38,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:38,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:34:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:38,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:38,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:38,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:34:38,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:38,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:38,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:38,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:38,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:34:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:38,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:38,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:34:38,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:38,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:34:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:38,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:38,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:38,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:34:38,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:38,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:34:38,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:38,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:34:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:34:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:34:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:39,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:34:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:39,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:39,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:39,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:39,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:39,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:34:39,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:39,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:39,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:39,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:39,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:39,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:39,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:34:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:39,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:39,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:39,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:39,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:39,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:34:39,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:39,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:39,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:39,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:39,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:34:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:39,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:39,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:39,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:34:39,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:39,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:34:39,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:39,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:34:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:39,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:39,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:34:39,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584656898] [2020-10-29 12:34:39,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:34:39,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:34:39,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445778355] [2020-10-29 12:34:39,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:34:39,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:34:39,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:34:39,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:34:39,140 INFO L87 Difference]: Start difference. First operand 21703 states and 30878 transitions. Second operand 13 states. [2020-10-29 12:34:39,492 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:34:40,617 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-29 12:34:42,332 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 12:34:42,488 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:34:45,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:34:45,737 INFO L93 Difference]: Finished difference Result 63497 states and 90610 transitions. [2020-10-29 12:34:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:34:45,738 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 133 [2020-10-29 12:34:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:34:45,911 INFO L225 Difference]: With dead ends: 63497 [2020-10-29 12:34:45,911 INFO L226 Difference]: Without dead ends: 41862 [2020-10-29 12:34:45,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-29 12:34:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41862 states. [2020-10-29 12:34:49,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41862 to 41691. [2020-10-29 12:34:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41691 states. [2020-10-29 12:34:49,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41691 states to 41691 states and 58910 transitions. [2020-10-29 12:34:49,762 INFO L78 Accepts]: Start accepts. Automaton has 41691 states and 58910 transitions. Word has length 133 [2020-10-29 12:34:49,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:34:49,762 INFO L481 AbstractCegarLoop]: Abstraction has 41691 states and 58910 transitions. [2020-10-29 12:34:49,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:34:49,762 INFO L276 IsEmpty]: Start isEmpty. Operand 41691 states and 58910 transitions. [2020-10-29 12:34:49,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 12:34:49,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:34:49,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:34:49,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:34:49,767 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:34:49,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:34:49,767 INFO L82 PathProgramCache]: Analyzing trace with hash -67391652, now seen corresponding path program 1 times [2020-10-29 12:34:49,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:34:49,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669403941] [2020-10-29 12:34:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:34:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:49,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:49,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:49,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:50,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:50,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:54,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:54,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 12:34:54,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:34:54,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 12:34:54,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:54,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:34:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 12:34:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 12:34:54,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,105 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:34:55,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:34:55,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:34:55,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:34:55,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:34:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 12:34:55,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:34:55,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 12:34:55,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:34:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:34:55,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:55,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:55,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:55,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:34:55,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:34:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:55,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:34:55,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:55,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:55,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:34:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:55,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:34:55,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:55,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:55,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:34:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:55,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:34:55,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:34:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:34:55,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:34:55,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:34:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:34:55,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:34:55,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:34:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:34:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:34:55,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 12:34:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:55,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:34:55,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:55,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:55,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:34:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:55,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:34:55,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:55,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:34:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:34:55,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:55,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:34:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:34:55,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:34:55,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:34:55,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:34:55,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:34:55,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:34:55,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:34:55,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:34:55,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:34:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:34:55,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:34:55,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:34:55,553 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 12:34:55,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669403941] [2020-10-29 12:34:55,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:34:55,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:34:55,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684206322] [2020-10-29 12:34:55,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:34:55,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:34:55,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:34:55,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:34:55,554 INFO L87 Difference]: Start difference. First operand 41691 states and 58910 transitions. Second operand 13 states. [2020-10-29 12:34:55,903 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:34:58,422 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:34:58,572 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-29 12:35:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:35:04,907 INFO L93 Difference]: Finished difference Result 121985 states and 172818 transitions. [2020-10-29 12:35:04,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:35:04,911 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 133 [2020-10-29 12:35:04,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:35:05,466 INFO L225 Difference]: With dead ends: 121985 [2020-10-29 12:35:05,466 INFO L226 Difference]: Without dead ends: 80362 [2020-10-29 12:35:05,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-10-29 12:35:05,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80362 states. [2020-10-29 12:35:12,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80362 to 80023. [2020-10-29 12:35:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80023 states. [2020-10-29 12:35:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80023 states to 80023 states and 112198 transitions. [2020-10-29 12:35:13,094 INFO L78 Accepts]: Start accepts. Automaton has 80023 states and 112198 transitions. Word has length 133 [2020-10-29 12:35:13,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:35:13,094 INFO L481 AbstractCegarLoop]: Abstraction has 80023 states and 112198 transitions. [2020-10-29 12:35:13,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:35:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 80023 states and 112198 transitions. [2020-10-29 12:35:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 12:35:13,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:35:13,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:35:13,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:35:13,098 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:35:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:35:13,099 INFO L82 PathProgramCache]: Analyzing trace with hash -661660066, now seen corresponding path program 1 times [2020-10-29 12:35:13,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:35:13,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822417464] [2020-10-29 12:35:13,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:35:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:13,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:13,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:13,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:15,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 12:35:18,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:35:18,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:35:18,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:35:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:35:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-29 12:35:18,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:18,506 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-29 12:35:18,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:35:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:18,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:35:18,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:18,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:35:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:18,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 12:35:18,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:18,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:35:18,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:35:18,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:35:18,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-29 12:35:18,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:18,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 12:35:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:18,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:35:18,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:18,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:35:18,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:35:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:35:18,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:35:18,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:18,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:35:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:18,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:35:18,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:18,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:35:18,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:35:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:35:18,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:35:18,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:18,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 12:35:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:18,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:35:18,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:18,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:35:18,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:35:18,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:35:18,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:35:18,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:18,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 12:35:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:18,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:35:18,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 12:35:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:35:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:35:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:35:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:18,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 12:35:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:18,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:35:18,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:18,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:35:18,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:35:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:35:18,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:35:18,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:18,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 12:35:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:18,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:18,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:18,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:35:18,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:18,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:35:18,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:18,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:18,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:35:18,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:35:18,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:35:18,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:19,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 12:35:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:19,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:19,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:19,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:35:19,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:19,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:35:19,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:19,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:35:19,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:35:19,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:35:19,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:19,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-29 12:35:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:19,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:19,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:19,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:35:19,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:19,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:35:19,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:19,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:19,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:35:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:35:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:35:19,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:19,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:35:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:35:19,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:35:19,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:35:19,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:35:19,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:35:19,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:35:19,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:35:19,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:35:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:35:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:35:19,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:35:19,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:35:19,106 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 12:35:19,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822417464] [2020-10-29 12:35:19,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:35:19,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-29 12:35:19,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543133367] [2020-10-29 12:35:19,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 12:35:19,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:35:19,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 12:35:19,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-10-29 12:35:19,108 INFO L87 Difference]: Start difference. First operand 80023 states and 112198 transitions. Second operand 17 states. [2020-10-29 12:35:19,858 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 195 [2020-10-29 12:35:20,223 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-29 12:35:21,383 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 197 [2020-10-29 12:35:21,656 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100 [2020-10-29 12:35:21,990 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-29 12:35:22,760 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 199 [2020-10-29 12:35:23,095 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 108 [2020-10-29 12:35:23,366 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-29 12:35:23,642 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-29 12:35:23,919 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-29 12:35:24,212 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 103 [2020-10-29 12:35:24,694 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2020-10-29 12:35:24,988 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-29 12:35:25,299 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2020-10-29 12:35:25,556 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-29 12:35:25,796 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 108 [2020-10-29 12:35:26,107 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-29 12:35:26,484 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-29 12:35:26,963 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-29 12:35:27,446 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 101 [2020-10-29 12:35:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:35:37,481 INFO L93 Difference]: Finished difference Result 198817 states and 276023 transitions. [2020-10-29 12:35:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 12:35:37,482 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 133 [2020-10-29 12:35:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:35:37,856 INFO L225 Difference]: With dead ends: 198817 [2020-10-29 12:35:37,856 INFO L226 Difference]: Without dead ends: 118862 [2020-10-29 12:35:37,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=440, Invalid=1200, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 12:35:38,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118862 states.