/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:07:00,099 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:07:00,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:07:00,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:07:00,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:07:00,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:07:00,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:07:00,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:07:00,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:07:00,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:07:00,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:07:00,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:07:00,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:07:00,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:07:00,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:07:00,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:07:00,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:07:00,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:07:00,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:07:00,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:07:00,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:07:00,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:07:00,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:07:00,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:07:00,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:07:00,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:07:00,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:07:00,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:07:00,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:07:00,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:07:00,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:07:00,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:07:00,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:07:00,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:07:00,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:07:00,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:07:00,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:07:00,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:07:00,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:07:00,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:07:00,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:07:00,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 23:07:00,272 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:07:00,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:07:00,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:07:00,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:07:00,279 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:07:00,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:07:00,279 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:07:00,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:07:00,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:07:00,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:07:00,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:07:00,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:07:00,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:07:00,282 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:07:00,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:07:00,282 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:07:00,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:07:00,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:07:00,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:07:00,284 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:07:00,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:07:00,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:07:00,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:07:00,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:07:00,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:07:00,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:07:00,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:07:00,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:07:00,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:07:00,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:07:00,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:07:00,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:07:00,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:07:00,772 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:07:00,773 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:07:00,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2020-10-27 23:07:00,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5a0c6e57/422a47960e8348db8a9850ad07ca64ef/FLAG71190b78c [2020-10-27 23:07:01,632 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:07:01,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2020-10-27 23:07:01,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5a0c6e57/422a47960e8348db8a9850ad07ca64ef/FLAG71190b78c [2020-10-27 23:07:01,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c5a0c6e57/422a47960e8348db8a9850ad07ca64ef [2020-10-27 23:07:01,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:07:01,943 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:07:01,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:07:01,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:07:01,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:07:01,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:07:01" (1/1) ... [2020-10-27 23:07:01,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39080ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:01, skipping insertion in model container [2020-10-27 23:07:01,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:07:01" (1/1) ... [2020-10-27 23:07:01,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:07:02,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:07:02,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:07:02,323 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:07:02,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:07:02,427 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:07:02,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02 WrapperNode [2020-10-27 23:07:02,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:07:02,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:07:02,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:07:02,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:07:02,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (1/1) ... [2020-10-27 23:07:02,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (1/1) ... [2020-10-27 23:07:02,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (1/1) ... [2020-10-27 23:07:02,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (1/1) ... [2020-10-27 23:07:02,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (1/1) ... [2020-10-27 23:07:02,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (1/1) ... [2020-10-27 23:07:02,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (1/1) ... [2020-10-27 23:07:02,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:07:02,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:07:02,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:07:02,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:07:02,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:07:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:07:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:07:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:07:02,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:07:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:07:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:07:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:07:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:07:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 23:07:02,607 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-27 23:07:02,608 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:07:02,608 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:07:02,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:07:02,608 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:07:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:07:02,608 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:07:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:07:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:07:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:07:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:07:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:07:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:07:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:07:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:07:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:07:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:07:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:07:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:07:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 23:07:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-27 23:07:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:07:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:07:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:07:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:07:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:07:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:07:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:07:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:07:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:07:03,696 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:07:03,697 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:07:03,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:07:03 BoogieIcfgContainer [2020-10-27 23:07:03,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:07:03,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:07:03,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:07:03,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:07:03,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:07:01" (1/3) ... [2020-10-27 23:07:03,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a01465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:07:03, skipping insertion in model container [2020-10-27 23:07:03,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:07:02" (2/3) ... [2020-10-27 23:07:03,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a01465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:07:03, skipping insertion in model container [2020-10-27 23:07:03,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:07:03" (3/3) ... [2020-10-27 23:07:03,709 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.6.2.ufo.BOUNDED-12.pals.c [2020-10-27 23:07:03,721 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:07:03,727 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:07:03,740 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:07:03,770 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:07:03,770 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:07:03,770 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:07:03,771 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:07:03,771 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:07:03,771 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:07:03,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:07:03,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:07:03,795 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-10-27 23:07:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 23:07:03,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:03,809 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] [2020-10-27 23:07:03,810 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:03,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:03,816 INFO L82 PathProgramCache]: Analyzing trace with hash 663239524, now seen corresponding path program 1 times [2020-10-27 23:07:03,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:03,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114400348] [2020-10-27 23:07:03,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:04,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:04,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:04,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:07:04,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:04,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-27 23:07:04,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:07:04,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:04,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:07:04,940 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:04,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:04,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:05,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 23:07:05,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:05,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:05,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:05,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:05,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:05,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:05,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:07:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:05,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:05,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:07:05,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:05,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:07:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:05,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:07:05,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:05,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:05,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:07:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:05,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:07:05,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:05,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:05,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:07:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:05,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:07:05,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:05,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:05,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:07:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:05,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:07:05,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:05,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:07:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:05,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:05,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:05,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:05,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 23:07:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:05,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:05,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:05,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:05,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 23:07:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:05,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:05,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:05,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:05,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:05,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:07:05,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:05,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:05,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:05,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:05,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:05,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:05,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114400348] [2020-10-27 23:07:05,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:05,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 23:07:05,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840440600] [2020-10-27 23:07:05,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 23:07:05,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:05,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 23:07:05,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 23:07:05,430 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 9 states. [2020-10-27 23:07:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:07,381 INFO L93 Difference]: Finished difference Result 319 states and 477 transitions. [2020-10-27 23:07:07,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 23:07:07,383 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-10-27 23:07:07,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:07,399 INFO L225 Difference]: With dead ends: 319 [2020-10-27 23:07:07,399 INFO L226 Difference]: Without dead ends: 184 [2020-10-27 23:07:07,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:07:07,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-27 23:07:07,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 178. [2020-10-27 23:07:07,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-27 23:07:07,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 274 transitions. [2020-10-27 23:07:07,476 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 274 transitions. Word has length 75 [2020-10-27 23:07:07,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:07,476 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 274 transitions. [2020-10-27 23:07:07,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 23:07:07,477 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 274 transitions. [2020-10-27 23:07:07,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 23:07:07,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:07,482 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] [2020-10-27 23:07:07,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:07:07,482 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:07,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:07,483 INFO L82 PathProgramCache]: Analyzing trace with hash 865063458, now seen corresponding path program 1 times [2020-10-27 23:07:07,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:07,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307157513] [2020-10-27 23:07:07,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:07,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:08,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:08,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-27 23:07:08,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:08,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 782 [2020-10-27 23:07:08,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:08,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:07:08,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:07:08,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:07:08,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:08,723 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:08,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:08,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:08,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:08,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:08,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:08,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:07:08,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:08,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:08,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:08,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:08,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:08,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:08,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:08,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:08,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:08,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:07:08,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:08,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:08,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:08,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:07:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:08,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:08,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:08,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:08,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:08,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:08,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:07:08,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:08,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:08,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:07:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:08,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:08,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:08,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:08,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:08,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:07:08,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:08,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:08,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:08,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:07:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:08,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:08,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:08,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:08,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:08,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:08,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:08,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:08,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:08,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:09,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:07:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:09,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:09,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:09,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:09,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:09,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:07:09,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:09,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:09,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:07:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:09,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:09,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:09,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:09,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:09,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:09,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:09,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:07:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:09,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:09,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:09,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:09,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:09,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:07:09,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:09,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:09,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:09,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:09,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:09,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 23:07:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:09,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:09,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:09,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:09,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:09,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:09,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:09,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:09,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:09,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:09,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:09,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 23:07:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:09,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:09,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:09,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:09,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:09,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:09,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:09,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:09,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:09,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307157513] [2020-10-27 23:07:09,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:09,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 23:07:09,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572332252] [2020-10-27 23:07:09,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 23:07:09,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:09,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 23:07:09,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:07:09,222 INFO L87 Difference]: Start difference. First operand 178 states and 274 transitions. Second operand 15 states. [2020-10-27 23:07:09,638 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:09,987 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-27 23:07:10,474 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:07:10,823 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-27 23:07:13,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:13,848 INFO L93 Difference]: Finished difference Result 321 states and 481 transitions. [2020-10-27 23:07:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:07:13,849 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 75 [2020-10-27 23:07:13,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:13,854 INFO L225 Difference]: With dead ends: 321 [2020-10-27 23:07:13,854 INFO L226 Difference]: Without dead ends: 196 [2020-10-27 23:07:13,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-10-27 23:07:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-27 23:07:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 178. [2020-10-27 23:07:13,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-27 23:07:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 233 transitions. [2020-10-27 23:07:13,888 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 233 transitions. Word has length 75 [2020-10-27 23:07:13,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:13,888 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 233 transitions. [2020-10-27 23:07:13,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 23:07:13,888 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 233 transitions. [2020-10-27 23:07:13,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-27 23:07:13,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:13,894 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] [2020-10-27 23:07:13,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:07:13,894 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:13,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:13,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1407311084, now seen corresponding path program 1 times [2020-10-27 23:07:13,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:13,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43525298] [2020-10-27 23:07:13,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:13,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:14,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:15,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:18,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:18,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-27 23:07:18,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:07:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-27 23:07:18,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:18,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:18,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 23:07:18,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-27 23:07:18,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:07:19,319 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:19,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:19,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 23:07:19,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:19,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:19,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:19,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:19,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 23:07:19,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:19,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:07:19,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:19,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:19,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:19,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:19,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:19,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:07:19,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:19,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:19,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:19,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:07:19,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:19,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:19,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:19,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:19,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:07:19,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:19,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:19,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:19,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:07:19,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:19,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:19,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:07:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:19,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:07:19,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:19,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:19,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:19,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 23:07:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:19,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:19,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:19,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:19,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:19,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-27 23:07:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:19,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:19,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:19,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:19,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:19,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:19,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:19,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:19,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:19,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:19,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:19,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43525298] [2020-10-27 23:07:19,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:19,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:19,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436454533] [2020-10-27 23:07:19,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:19,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:19,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:19,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:19,794 INFO L87 Difference]: Start difference. First operand 178 states and 233 transitions. Second operand 12 states. [2020-10-27 23:07:20,132 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:23,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:23,505 INFO L93 Difference]: Finished difference Result 415 states and 574 transitions. [2020-10-27 23:07:23,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:23,506 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 115 [2020-10-27 23:07:23,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:23,511 INFO L225 Difference]: With dead ends: 415 [2020-10-27 23:07:23,511 INFO L226 Difference]: Without dead ends: 296 [2020-10-27 23:07:23,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:23,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-27 23:07:23,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 282. [2020-10-27 23:07:23,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-27 23:07:23,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 385 transitions. [2020-10-27 23:07:23,588 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 385 transitions. Word has length 115 [2020-10-27 23:07:23,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:23,589 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 385 transitions. [2020-10-27 23:07:23,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:23,589 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 385 transitions. [2020-10-27 23:07:23,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-27 23:07:23,605 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:23,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:23,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:07:23,605 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:23,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:23,608 INFO L82 PathProgramCache]: Analyzing trace with hash -2062558920, now seen corresponding path program 1 times [2020-10-27 23:07:23,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:23,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809130028] [2020-10-27 23:07:23,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:23,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:23,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:24,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:24,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:28,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:28,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 23:07:28,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:07:28,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 23:07:28,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 23:07:28,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 23:07:28,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,041 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:29,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:07:29,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:29,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 23:07:29,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:29,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:29,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:07:29,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:29,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:29,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:29,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:29,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:29,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:29,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:07:29,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:29,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:29,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:29,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:29,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:29,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:29,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:29,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:29,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:29,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:29,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:29,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:07:29,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:29,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:29,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:29,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:07:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:29,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:29,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:29,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:29,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 23:07:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:29,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:29,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:29,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:07:29,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 23:07:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:29,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:29,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:29,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:29,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:29,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:29,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:29,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:29,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:29,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:29,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:29,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:29,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809130028] [2020-10-27 23:07:29,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:29,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:29,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784373751] [2020-10-27 23:07:29,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:29,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:29,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:29,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:29,528 INFO L87 Difference]: Start difference. First operand 282 states and 385 transitions. Second operand 12 states. [2020-10-27 23:07:29,858 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:32,761 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:07:32,908 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:07:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:33,717 INFO L93 Difference]: Finished difference Result 724 states and 1021 transitions. [2020-10-27 23:07:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:33,717 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 116 [2020-10-27 23:07:33,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:33,725 INFO L225 Difference]: With dead ends: 724 [2020-10-27 23:07:33,726 INFO L226 Difference]: Without dead ends: 501 [2020-10-27 23:07:33,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-10-27 23:07:33,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 478. [2020-10-27 23:07:33,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-10-27 23:07:33,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 669 transitions. [2020-10-27 23:07:33,811 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 669 transitions. Word has length 116 [2020-10-27 23:07:33,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:33,812 INFO L481 AbstractCegarLoop]: Abstraction has 478 states and 669 transitions. [2020-10-27 23:07:33,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:33,812 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 669 transitions. [2020-10-27 23:07:33,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 23:07:33,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:33,816 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:33,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:07:33,817 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:33,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:33,817 INFO L82 PathProgramCache]: Analyzing trace with hash -678162930, now seen corresponding path program 1 times [2020-10-27 23:07:33,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:33,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397963092] [2020-10-27 23:07:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:33,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:33,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:34,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:34,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:34,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:38,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:38,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 23:07:38,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:07:38,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-27 23:07:38,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:38,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:38,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 23:07:38,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 23:07:38,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,239 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:39,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:39,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:07:39,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:39,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:39,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:39,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:39,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 23:07:39,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:39,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:39,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 23:07:39,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:39,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:39,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:39,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:39,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:39,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:39,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:39,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:39,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:39,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:39,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:39,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:39,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:39,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:39,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:39,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:39,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:39,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:39,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:39,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:39,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:39,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:07:39,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:07:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:39,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:39,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:39,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:07:39,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:07:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:39,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:07:39,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:39,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:39,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:39,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 23:07:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:39,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:39,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:39,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:39,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:07:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:39,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:39,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397963092] [2020-10-27 23:07:39,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:39,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:39,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103378449] [2020-10-27 23:07:39,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:39,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:39,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:39,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:39,637 INFO L87 Difference]: Start difference. First operand 478 states and 669 transitions. Second operand 12 states. [2020-10-27 23:07:39,978 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:43,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:43,323 INFO L93 Difference]: Finished difference Result 1304 states and 1853 transitions. [2020-10-27 23:07:43,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:43,326 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 117 [2020-10-27 23:07:43,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:43,333 INFO L225 Difference]: With dead ends: 1304 [2020-10-27 23:07:43,333 INFO L226 Difference]: Without dead ends: 885 [2020-10-27 23:07:43,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:43,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2020-10-27 23:07:43,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 846. [2020-10-27 23:07:43,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-10-27 23:07:43,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1197 transitions. [2020-10-27 23:07:43,423 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1197 transitions. Word has length 117 [2020-10-27 23:07:43,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:43,424 INFO L481 AbstractCegarLoop]: Abstraction has 846 states and 1197 transitions. [2020-10-27 23:07:43,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:43,424 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1197 transitions. [2020-10-27 23:07:43,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-27 23:07:43,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:43,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:43,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:07:43,426 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:43,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:43,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1807399810, now seen corresponding path program 1 times [2020-10-27 23:07:43,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:43,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1335237194] [2020-10-27 23:07:43,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:43,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:43,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:43,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:48,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:48,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 23:07:48,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:07:48,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-27 23:07:48,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 23:07:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 23:07:48,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:48,814 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:48,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:48,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:48,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:48,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:48,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:48,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:07:48,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:48,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:48,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:48,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:48,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:48,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:48,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:48,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:48,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:07:48,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:48,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:07:48,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:48,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:48,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:48,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:48,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:48,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:48,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:48,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:48,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:48,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:48,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:48,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:48,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:48,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:48,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:48,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:48,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:48,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:48,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:48,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:48,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:48,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:48,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:48,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:07:48,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:48,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:49,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:07:49,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:49,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:49,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:07:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:49,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:49,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:07:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:49,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:49,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 23:07:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:49,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:07:49,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 23:07:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:49,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:49,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:49,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:49,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:49,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:07:49,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:49,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:49,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:49,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:49,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1335237194] [2020-10-27 23:07:49,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:49,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:49,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590393678] [2020-10-27 23:07:49,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:49,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:49,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:49,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:49,254 INFO L87 Difference]: Start difference. First operand 846 states and 1197 transitions. Second operand 12 states. [2020-10-27 23:07:49,603 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:07:53,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:53,524 INFO L93 Difference]: Finished difference Result 2388 states and 3393 transitions. [2020-10-27 23:07:53,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:07:53,525 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 118 [2020-10-27 23:07:53,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:07:53,537 INFO L225 Difference]: With dead ends: 2388 [2020-10-27 23:07:53,538 INFO L226 Difference]: Without dead ends: 1601 [2020-10-27 23:07:53,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:07:53,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-10-27 23:07:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1534. [2020-10-27 23:07:53,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1534 states. [2020-10-27 23:07:53,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2173 transitions. [2020-10-27 23:07:53,689 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2173 transitions. Word has length 118 [2020-10-27 23:07:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:07:53,689 INFO L481 AbstractCegarLoop]: Abstraction has 1534 states and 2173 transitions. [2020-10-27 23:07:53,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:07:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2173 transitions. [2020-10-27 23:07:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-27 23:07:53,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:07:53,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:07:53,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:07:53,692 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:07:53,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:07:53,693 INFO L82 PathProgramCache]: Analyzing trace with hash 394566108, now seen corresponding path program 1 times [2020-10-27 23:07:53,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:07:53,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754075591] [2020-10-27 23:07:53,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:07:53,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:53,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:53,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:54,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:56,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:56,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-27 23:07:56,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:07:56,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3144 [2020-10-27 23:07:56,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:56,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:56,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:07:56,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 23:07:56,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,223 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:07:57,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:07:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:07:57,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 23:07:57,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:57,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:57,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:07:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:07:57,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:07:57,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:57,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:57,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:07:57,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:07:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:07:57,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:57,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:57,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:07:57,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:07:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:57,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:07:57,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:07:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:07:57,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:07:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:07:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:07:57,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:07:57,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:07:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:07:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:07:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:07:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:57,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:57,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:57,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:57,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:07:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:57,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:07:57,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:57,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:57,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:07:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:57,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:07:57,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:57,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:57,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-27 23:07:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:07:57,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:07:57,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:07:57,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:57,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 23:07:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:07:57,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:07:57,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:07:57,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:07:57,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:07:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:07:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:07:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:07:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:07:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:07:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:07:57,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:07:57,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754075591] [2020-10-27 23:07:57,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:07:57,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:07:57,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601967686] [2020-10-27 23:07:57,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:07:57,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:07:57,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:07:57,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:07:57,640 INFO L87 Difference]: Start difference. First operand 1534 states and 2173 transitions. Second operand 12 states. [2020-10-27 23:07:58,030 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:01,632 INFO L93 Difference]: Finished difference Result 4404 states and 6225 transitions. [2020-10-27 23:08:01,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:08:01,634 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 119 [2020-10-27 23:08:01,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:01,650 INFO L225 Difference]: With dead ends: 4404 [2020-10-27 23:08:01,651 INFO L226 Difference]: Without dead ends: 2929 [2020-10-27 23:08:01,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:08:01,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2020-10-27 23:08:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2814. [2020-10-27 23:08:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2814 states. [2020-10-27 23:08:01,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3965 transitions. [2020-10-27 23:08:01,909 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3965 transitions. Word has length 119 [2020-10-27 23:08:01,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:01,910 INFO L481 AbstractCegarLoop]: Abstraction has 2814 states and 3965 transitions. [2020-10-27 23:08:01,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:01,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3965 transitions. [2020-10-27 23:08:01,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 23:08:01,912 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:01,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:08:01,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:08:01,912 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:01,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:01,913 INFO L82 PathProgramCache]: Analyzing trace with hash -269058598, now seen corresponding path program 1 times [2020-10-27 23:08:01,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:01,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115583313] [2020-10-27 23:08:01,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:01,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:02,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:03,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:03,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 23:08:03,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:08:03,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1770 [2020-10-27 23:08:03,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 23:08:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 23:08:03,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,117 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:04,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:04,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:08:04,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:04,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:04,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 23:08:04,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:04,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:04,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:08:04,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:04,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:04,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:04,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:04,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:04,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 23:08:04,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:04,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:04,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:08:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:04,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:04,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:04,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:04,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:08:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:04,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:04,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:04,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:04,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:08:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:08:04,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:08:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:04,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:08:04,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:08:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:04,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:08:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:04,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:04,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:04,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:04,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:04,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:08:04,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:04,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:04,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:08:04,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:04,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:04,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:04,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115583313] [2020-10-27 23:08:04,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:04,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 23:08:04,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745831714] [2020-10-27 23:08:04,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 23:08:04,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:04,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 23:08:04,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-10-27 23:08:04,583 INFO L87 Difference]: Start difference. First operand 2814 states and 3965 transitions. Second operand 12 states. [2020-10-27 23:08:04,941 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:08:06,739 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:08,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:08,840 INFO L93 Difference]: Finished difference Result 8228 states and 11553 transitions. [2020-10-27 23:08:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-27 23:08:08,840 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 120 [2020-10-27 23:08:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:08,875 INFO L225 Difference]: With dead ends: 8228 [2020-10-27 23:08:08,875 INFO L226 Difference]: Without dead ends: 5473 [2020-10-27 23:08:08,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=185, Invalid=517, Unknown=0, NotChecked=0, Total=702 [2020-10-27 23:08:08,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2020-10-27 23:08:09,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 5278. [2020-10-27 23:08:09,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5278 states. [2020-10-27 23:08:09,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 7389 transitions. [2020-10-27 23:08:09,443 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 7389 transitions. Word has length 120 [2020-10-27 23:08:09,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:09,443 INFO L481 AbstractCegarLoop]: Abstraction has 5278 states and 7389 transitions. [2020-10-27 23:08:09,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 23:08:09,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 7389 transitions. [2020-10-27 23:08:09,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-27 23:08:09,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:09,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:08:09,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:08:09,445 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:09,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:09,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1397713664, now seen corresponding path program 1 times [2020-10-27 23:08:09,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:09,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37626138] [2020-10-27 23:08:09,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:09,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:09,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:12,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:12,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-27 23:08:12,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:08:12,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2781 [2020-10-27 23:08:12,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:12,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 23:08:12,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:08:12,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-27 23:08:12,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:12,729 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:08:12,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:08:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:12,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:12,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:12,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:08:12,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:12,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 23:08:12,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:12,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:08:12,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:12,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:08:12,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:12,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:08:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:12,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:12,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:12,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:08:12,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:12,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 23:08:12,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:12,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:08:12,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:12,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 23:08:12,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:08:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:13,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:13,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:13,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:08:13,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:13,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:08:13,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:13,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:13,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:08:13,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:08:13,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:08:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:13,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:13,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:13,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:08:13,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:13,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:08:13,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:13,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:13,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:13,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:08:13,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:08:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:13,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:13,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:13,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:13,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:13,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:08:13,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:13,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:08:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:13,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:13,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:13,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:13,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:13,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:08:13,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:13,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:13,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:08:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:13,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:13,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:13,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:13,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:13,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:08:13,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:13,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:13,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:08:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:13,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:13,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:13,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:13,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:08:13,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:08:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:13,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:13,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:13,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:08:13,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:13,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:08:13,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:08:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:08:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:08:13,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:08:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:13,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:13,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:08:13,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:08:13,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:08:13,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:08:13,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:08:13,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:08:13,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:08:13,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:08:13,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:08:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:08:13,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37626138] [2020-10-27 23:08:13,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:08:13,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-10-27 23:08:13,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850698441] [2020-10-27 23:08:13,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 23:08:13,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:08:13,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 23:08:13,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-10-27 23:08:13,747 INFO L87 Difference]: Start difference. First operand 5278 states and 7389 transitions. Second operand 22 states. [2020-10-27 23:08:14,634 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 196 [2020-10-27 23:08:15,040 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-27 23:08:15,411 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:08:15,801 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:08:16,207 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-27 23:08:16,663 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-27 23:08:17,166 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-27 23:08:17,523 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:17,892 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:18,268 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:18,651 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:19,030 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-27 23:08:22,806 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:23,029 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:08:24,657 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:24,822 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:25,071 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:26,299 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:08:26,814 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:08:27,181 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:08:27,554 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-27 23:08:27,978 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-27 23:08:28,400 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:08:28,806 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-27 23:08:31,078 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:31,246 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:08:31,402 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:32,070 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:32,222 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-10-27 23:08:33,840 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:08:33,986 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:34,155 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:08:34,315 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:08:34,725 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:34,894 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:08:35,050 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:37,030 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:37,197 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:08:37,342 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:08:37,796 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:37,972 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:08:38,133 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:38,377 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:08:38,707 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 23:08:39,692 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-27 23:08:39,868 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:08:40,101 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:08:40,274 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:08:40,418 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:40,748 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:08:40,907 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:41,187 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:41,504 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:41,873 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:08:42,988 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:43,176 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:08:43,618 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:08:44,056 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:08:44,337 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-10-27 23:08:44,661 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:45,401 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 23:08:45,564 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:08:45,757 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-27 23:08:45,903 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-10-27 23:08:46,533 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:08:46,840 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:08:49,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:08:49,119 INFO L93 Difference]: Finished difference Result 77253 states and 108567 transitions. [2020-10-27 23:08:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-10-27 23:08:49,120 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 120 [2020-10-27 23:08:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:49,593 INFO L225 Difference]: With dead ends: 77253 [2020-10-27 23:08:49,593 INFO L226 Difference]: Without dead ends: 72034 [2020-10-27 23:08:49,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7751 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=3506, Invalid=17664, Unknown=0, NotChecked=0, Total=21170 [2020-10-27 23:08:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72034 states. [2020-10-27 23:08:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72034 to 69502. [2020-10-27 23:08:57,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69502 states. [2020-10-27 23:08:58,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69502 states to 69502 states and 97757 transitions. [2020-10-27 23:08:58,304 INFO L78 Accepts]: Start accepts. Automaton has 69502 states and 97757 transitions. Word has length 120 [2020-10-27 23:08:58,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:08:58,305 INFO L481 AbstractCegarLoop]: Abstraction has 69502 states and 97757 transitions. [2020-10-27 23:08:58,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 23:08:58,305 INFO L276 IsEmpty]: Start isEmpty. Operand 69502 states and 97757 transitions. [2020-10-27 23:08:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-27 23:08:58,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:08:58,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:08:58,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:08:58,307 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:08:58,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:08:58,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1890495812, now seen corresponding path program 1 times [2020-10-27 23:08:58,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:08:58,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282115602] [2020-10-27 23:08:58,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:08:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:08:58,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:08:58,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:00,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:00,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-27 23:09:00,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:09:00,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2580 [2020-10-27 23:09:00,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:09:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-27 23:09:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:09:00,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,328 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:01,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:09:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:09:01,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:09:01,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:09:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:09:01,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:09:01,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:09:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:09:01,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:09:01,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:09:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:01,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:09:01,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:09:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:01,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:09:01,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:09:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:01,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:09:01,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:09:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:01,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:09:01,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:09:01,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:09:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:01,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:09:01,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:09:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:01,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:09:01,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:01,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:01,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:09:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:01,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:01,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:01,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:01,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:01,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:09:01,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:09:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:09:01,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:09:01,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282115602] [2020-10-27 23:09:01,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:09:01,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 23:09:01,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093837519] [2020-10-27 23:09:01,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 23:09:01,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:09:01,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 23:09:01,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-27 23:09:01,746 INFO L87 Difference]: Start difference. First operand 69502 states and 97757 transitions. Second operand 15 states. [2020-10-27 23:09:04,154 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-27 23:09:04,528 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-27 23:09:04,967 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-27 23:09:05,367 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-27 23:09:10,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:09:10,439 INFO L93 Difference]: Finished difference Result 81793 states and 117151 transitions. [2020-10-27 23:09:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 23:09:10,440 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 121 [2020-10-27 23:09:10,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:09:10,980 INFO L225 Difference]: With dead ends: 81793 [2020-10-27 23:09:10,980 INFO L226 Difference]: Without dead ends: 81790 [2020-10-27 23:09:11,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-27 23:09:11,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81790 states. [2020-10-27 23:09:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81790 to 73534. [2020-10-27 23:09:17,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73534 states. [2020-10-27 23:09:17,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73534 states to 73534 states and 101789 transitions. [2020-10-27 23:09:17,616 INFO L78 Accepts]: Start accepts. Automaton has 73534 states and 101789 transitions. Word has length 121 [2020-10-27 23:09:17,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:09:17,617 INFO L481 AbstractCegarLoop]: Abstraction has 73534 states and 101789 transitions. [2020-10-27 23:09:17,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 23:09:17,617 INFO L276 IsEmpty]: Start isEmpty. Operand 73534 states and 101789 transitions. [2020-10-27 23:09:17,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-27 23:09:17,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:09:17,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:09:17,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 23:09:17,619 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:09:17,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:09:17,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1748032936, now seen corresponding path program 1 times [2020-10-27 23:09:17,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:09:17,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1309869036] [2020-10-27 23:09:17,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:09:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:17,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:17,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:20,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-27 23:09:20,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:09:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2420 [2020-10-27 23:09:20,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:09:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 23:09:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-27 23:09:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:20,508 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-27 23:09:20,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:09:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:20,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:20,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:09:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:20,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-27 23:09:20,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 23:09:20,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:20,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:09:20,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:20,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 23:09:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:20,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:09:20,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:20,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:09:20,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:20,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:09:20,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:20,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 23:09:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:20,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:09:20,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:20,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:09:20,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:20,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:09:20,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:20,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 23:09:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:20,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:20,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:20,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:09:20,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:20,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:20,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 23:09:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:20,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:20,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:20,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:09:20,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:20,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:20,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-27 23:09:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:20,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:20,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:20,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:20,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:09:20,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:20,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:20,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:20,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:20,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:20,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:09:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:20,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:21,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:21,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:21,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:21,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:09:21,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:21,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:09:21,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:09:21,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:09:21,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:21,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 23:09:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:21,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:21,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:21,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:21,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:09:21,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:09:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:09:21,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:09:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:21,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-27 23:09:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:09:21,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:09:21,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:09:21,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:09:21,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:09:21,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:09:21,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:09:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:09:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:09:21,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:09:21,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:09:21,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:09:21,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1309869036] [2020-10-27 23:09:21,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:09:21,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2020-10-27 23:09:21,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273578492] [2020-10-27 23:09:21,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 23:09:21,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:09:21,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 23:09:21,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-27 23:09:21,272 INFO L87 Difference]: Start difference. First operand 73534 states and 101789 transitions. Second operand 21 states. [2020-10-27 23:09:21,761 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:22,171 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:23,172 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:23,339 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:09:23,482 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-27 23:09:24,028 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:24,460 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:24,831 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:24,977 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:25,126 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:09:25,473 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-27 23:09:26,168 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:09:26,600 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:26,989 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:27,435 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:09:27,828 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:27,997 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:09:28,173 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:09:28,592 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:09:28,968 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-27 23:09:29,139 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:09:29,295 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:09:29,479 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-27 23:09:29,638 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:09:29,867 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 23:09:30,013 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-27 23:09:30,999 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:31,517 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:09:32,022 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:32,514 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:09:32,960 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:33,421 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-27 23:09:33,887 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:34,359 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:34,803 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:09:34,973 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:35,172 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:09:35,656 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:36,099 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:09:36,557 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 23:09:36,961 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:09:37,119 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:09:37,284 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:09:37,467 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:09:37,631 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:09:38,040 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-10-27 23:09:38,437 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-27 23:09:38,594 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-27 23:09:38,763 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:09:38,949 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:09:39,136 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:09:39,381 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:09:39,537 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:09:39,707 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-27 23:09:39,875 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:09:40,231 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-27 23:09:40,405 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 23:09:41,781 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:42,319 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:42,752 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:43,229 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:43,654 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:44,086 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:44,496 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:44,933 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 23:09:45,361 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:45,818 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:46,208 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:46,627 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:47,035 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:47,229 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:47,415 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:47,892 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:48,329 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:48,804 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:49,260 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:49,765 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:50,223 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:50,701 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:09:51,155 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:51,356 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:51,536 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:52,068 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:52,501 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:52,715 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:52,891 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:53,088 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:53,259 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:53,748 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:54,182 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:54,620 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:55,036 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:55,212 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:09:55,374 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:55,811 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:09:56,211 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:56,412 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:56,564 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:56,740 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:56,914 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:57,233 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:57,387 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:57,583 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:57,752 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:58,205 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:09:58,648 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-27 23:09:58,863 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:59,033 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:59,228 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:09:59,392 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:59,659 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:09:59,839 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:00,218 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:00,377 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:00,532 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:00,696 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:00,969 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-27 23:10:01,140 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:01,931 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-10-27 23:10:02,117 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 23:10:04,816 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:05,308 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:05,819 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:06,292 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:06,776 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:07,239 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:07,727 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:08,198 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:08,746 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 23:10:09,213 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-27 23:10:09,719 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:10,148 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:10,599 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:11,028 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:11,468 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:11,923 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:12,109 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 23:10:12,592 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:13,016 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:13,489 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:13,922 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:14,368 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:14,797 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:15,250 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:15,729 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:16,255 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:16,749 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:17,249 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:17,742 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:18,230 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 23:10:18,722 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 23:10:18,946 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:19,143 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:19,645 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:20,162 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:20,691 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:21,217 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:21,746 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:22,255 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-27 23:10:22,468 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:22,666 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:22,890 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:23,059 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:23,273 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-27 23:10:23,445 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-27 23:10:23,891 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-10-27 23:10:24,319 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 199