/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_floodmax.5.3.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:52:43,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:52:43,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:52:43,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:52:43,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:52:43,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:52:43,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:52:43,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:52:43,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:52:43,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:52:43,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:52:43,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:52:43,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:52:43,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:52:43,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:52:43,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:52:43,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:52:43,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:52:43,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:52:43,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:52:43,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:52:43,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:52:43,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:52:43,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:52:43,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:52:43,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:52:43,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:52:43,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:52:43,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:52:43,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:52:43,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:52:43,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:52:43,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:52:43,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:52:43,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:52:43,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:52:43,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:52:43,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:52:43,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:52:43,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:52:43,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:52:43,325 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 22:52:43,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:52:43,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:52:43,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:52:43,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:52:43,356 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:52:43,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:52:43,356 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:52:43,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:52:43,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:52:43,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:52:43,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:52:43,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:52:43,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:52:43,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:52:43,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:52:43,358 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:52:43,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:52:43,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:52:43,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:52:43,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:52:43,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:52:43,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:52:43,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:52:43,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:52:43,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:52:43,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:52:43,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:52:43,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:52:43,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:52:43,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:52:43,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:52:43,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:52:43,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:52:43,789 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:52:43,790 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:52:43,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-27 22:52:43,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a8af818b/f20f58d05c2b425fa01ab4b1a486531f/FLAGe099ba659 [2020-10-27 22:52:44,637 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:52:44,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-27 22:52:44,670 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a8af818b/f20f58d05c2b425fa01ab4b1a486531f/FLAGe099ba659 [2020-10-27 22:52:44,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9a8af818b/f20f58d05c2b425fa01ab4b1a486531f [2020-10-27 22:52:44,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:52:44,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:52:44,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:52:44,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:52:44,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:52:44,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:52:44" (1/1) ... [2020-10-27 22:52:44,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49aaa6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:44, skipping insertion in model container [2020-10-27 22:52:44,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:52:44" (1/1) ... [2020-10-27 22:52:44,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:52:44,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:52:45,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:52:45,499 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:52:45,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:52:45,675 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:52:45,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45 WrapperNode [2020-10-27 22:52:45,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:52:45,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:52:45,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:52:45,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:52:45,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (1/1) ... [2020-10-27 22:52:45,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (1/1) ... [2020-10-27 22:52:45,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (1/1) ... [2020-10-27 22:52:45,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (1/1) ... [2020-10-27 22:52:45,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (1/1) ... [2020-10-27 22:52:45,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (1/1) ... [2020-10-27 22:52:45,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (1/1) ... [2020-10-27 22:52:45,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:52:45,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:52:45,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:52:45,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:52:45,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (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 22:52:45,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:52:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:52:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:52:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 22:52:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 22:52:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 22:52:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 22:52:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 22:52:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 22:52:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 22:52:45,975 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 22:52:45,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:52:45,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 22:52:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:52:45,975 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:52:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:52:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:52:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 22:52:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 22:52:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 22:52:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 22:52:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 22:52:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 22:52:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 22:52:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 22:52:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 22:52:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 22:52:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 22:52:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 22:52:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 22:52:45,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:52:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:52:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:52:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:52:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:52:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:52:45,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:52:48,486 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:52:48,487 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 22:52:48,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:52:48 BoogieIcfgContainer [2020-10-27 22:52:48,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:52:48,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:52:48,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:52:48,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:52:48,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:52:44" (1/3) ... [2020-10-27 22:52:48,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481629ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:52:48, skipping insertion in model container [2020-10-27 22:52:48,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:45" (2/3) ... [2020-10-27 22:52:48,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481629ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:52:48, skipping insertion in model container [2020-10-27 22:52:48,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:52:48" (3/3) ... [2020-10-27 22:52:48,500 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.3.ufo.BOUNDED-10.pals.c [2020-10-27 22:52:48,512 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:52:48,518 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:52:48,531 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:52:48,566 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:52:48,566 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:52:48,566 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:52:48,566 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:52:48,566 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:52:48,567 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:52:48,567 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:52:48,567 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:52:48,600 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states. [2020-10-27 22:52:48,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 22:52:48,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:52:48,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:48,634 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:52:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:52:48,641 INFO L82 PathProgramCache]: Analyzing trace with hash -966148239, now seen corresponding path program 1 times [2020-10-27 22:52:48,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:52:48,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199763540] [2020-10-27 22:52:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:52:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:49,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:50,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:50,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 22:52:50,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:50,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-27 22:52:50,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-27 22:52:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:50,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:52:51,479 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:52:51,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:52:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:51,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:51,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:51,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:52:51,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:51,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 22:52:51,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:51,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:51,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:51,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:51,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:51,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:52:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:51,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:51,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 22:52:51,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:51,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-27 22:52:51,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:52:51,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:51,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:52:51,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:52:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:51,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:51,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:51,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:52:51,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:51,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:52:51,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:52:51,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:51,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:52:51,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:52:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:52,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:52,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:52,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:52,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:52:52,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:52,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:52:52,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 22:52:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:52,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:52,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:52,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:52,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:52,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:52:52,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:52,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:52,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:52,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:52,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:52,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 22:52:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:52,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:52,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:52,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:52,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:52,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:52:52,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:52,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:52,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:52,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:52,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 22:52:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:52,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:52,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:52,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:52,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:52,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:52:52,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:52,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:52,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:52,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 22:52:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:52,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:52,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:52,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:52,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:52,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:52:52,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:52,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:52,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:52,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 22:52:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:52,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:52:52,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:52:52,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:52:52,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:52:52,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:52:52,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:52:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:52:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:52:52,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:52:52,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:52:52,404 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 22:52:52,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199763540] [2020-10-27 22:52:52,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:52:52,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:52:52,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735870465] [2020-10-27 22:52:52,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:52:52,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:52:52,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:52:52,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:52:52,433 INFO L87 Difference]: Start difference. First operand 742 states. Second operand 8 states. [2020-10-27 22:52:55,719 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:56,426 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:57,180 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:57,796 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:58,375 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:52:59,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:52:59,251 INFO L93 Difference]: Finished difference Result 976 states and 1721 transitions. [2020-10-27 22:52:59,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:52:59,253 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2020-10-27 22:52:59,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:52:59,289 INFO L225 Difference]: With dead ends: 976 [2020-10-27 22:52:59,290 INFO L226 Difference]: Without dead ends: 784 [2020-10-27 22:52:59,296 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:52:59,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-10-27 22:52:59,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 734. [2020-10-27 22:52:59,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-27 22:52:59,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1328 transitions. [2020-10-27 22:52:59,563 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1328 transitions. Word has length 183 [2020-10-27 22:52:59,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:52:59,567 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 1328 transitions. [2020-10-27 22:52:59,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:52:59,567 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1328 transitions. [2020-10-27 22:52:59,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 22:52:59,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:52:59,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:59,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:52:59,587 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:52:59,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:52:59,588 INFO L82 PathProgramCache]: Analyzing trace with hash 973013807, now seen corresponding path program 1 times [2020-10-27 22:52:59,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:52:59,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137205241] [2020-10-27 22:52:59,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:52:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:52:59,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:03,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:03,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 22:53:03,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:03,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3351 [2020-10-27 22:53:03,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:53:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-27 22:53:03,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:53:03,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:04,396 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:04,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:04,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:04,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:04,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:04,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 22:53:04,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:04,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:04,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:04,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:04,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:04,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 22:53:05,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-10-27 22:53:05,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 22:53:05,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:53:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:05,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:05,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:53:05,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:53:05,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:53:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:05,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:53:05,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 22:53:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:05,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:53:05,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:05,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:05,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 22:53:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:05,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:05,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 22:53:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:05,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:53:05,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:05,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:05,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:05,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 22:53:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:05,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:05,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:05,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:05,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 22:53:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:05,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:53:05,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:05,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:05,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,814 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 22:53:05,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137205241] [2020-10-27 22:53:05,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:05,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 22:53:05,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694213440] [2020-10-27 22:53:05,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:53:05,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:05,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:53:05,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:53:05,822 INFO L87 Difference]: Start difference. First operand 734 states and 1328 transitions. Second operand 14 states. [2020-10-27 22:53:16,027 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:53:17,219 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-27 22:53:18,580 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 396 [2020-10-27 22:53:19,771 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 400 [2020-10-27 22:53:21,217 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:22,028 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:22,965 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:23,820 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:24,701 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:53:26,204 INFO L93 Difference]: Finished difference Result 977 states and 1723 transitions. [2020-10-27 22:53:26,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:53:26,205 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 183 [2020-10-27 22:53:26,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:53:26,213 INFO L225 Difference]: With dead ends: 977 [2020-10-27 22:53:26,213 INFO L226 Difference]: Without dead ends: 795 [2020-10-27 22:53:26,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:53:26,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-10-27 22:53:26,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 734. [2020-10-27 22:53:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-27 22:53:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1268 transitions. [2020-10-27 22:53:26,383 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1268 transitions. Word has length 183 [2020-10-27 22:53:26,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:53:26,384 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 1268 transitions. [2020-10-27 22:53:26,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:53:26,384 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1268 transitions. [2020-10-27 22:53:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-27 22:53:26,389 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:53:26,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:26,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:53:26,390 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:53:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:53:26,391 INFO L82 PathProgramCache]: Analyzing trace with hash -929784361, now seen corresponding path program 1 times [2020-10-27 22:53:26,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:53:26,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356102719] [2020-10-27 22:53:26,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:53:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:26,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:26,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:27,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:28,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:31,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:31,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-27 22:53:31,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:53:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-27 22:53:31,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-27 22:53:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 22:53:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:53:32,608 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:32,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:32,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:32,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:32,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:32,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:32,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 22:53:32,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:32,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:32,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:32,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:32,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:32,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:53:32,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:32,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-27 22:53:32,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:53:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:33,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:53:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:33,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:33,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:33,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:33,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:33,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:53:33,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:33,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:53:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:33,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:33,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:33,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:53:33,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:33,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:33,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:33,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:53:33,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:33,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:53:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:33,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:33,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:33,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:33,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:33,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:53:33,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:33,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:53:33,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:33,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:53:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:33,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:33,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:33,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:33,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:33,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:53:33,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:53:33,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:33,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-27 22:53:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:33,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:33,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:33,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:33,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:33,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:53:33,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:33,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:33,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:53:33,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:33,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-27 22:53:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:33,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:33,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:33,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:33,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:33,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:53:33,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:33,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:33,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-27 22:53:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:33,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:33,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:33,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:33,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:33,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:53:33,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:33,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:33,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:33,682 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 22:53:33,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356102719] [2020-10-27 22:53:33,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:33,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:53:33,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440062690] [2020-10-27 22:53:33,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:53:33,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:33,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:53:33,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:53:33,687 INFO L87 Difference]: Start difference. First operand 734 states and 1268 transitions. Second operand 11 states. [2020-10-27 22:53:34,808 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:53:41,793 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:42,479 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:43,283 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:44,033 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:44,570 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:53:45,228 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:45,517 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:47,244 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:47,778 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:48,327 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:49,614 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:53:49,908 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:53:50,218 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:53:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:53:50,310 INFO L93 Difference]: Finished difference Result 1180 states and 1994 transitions. [2020-10-27 22:53:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:53:50,311 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 242 [2020-10-27 22:53:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:53:50,319 INFO L225 Difference]: With dead ends: 1180 [2020-10-27 22:53:50,320 INFO L226 Difference]: Without dead ends: 1004 [2020-10-27 22:53:50,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:53:50,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-10-27 22:53:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 898. [2020-10-27 22:53:50,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-27 22:53:50,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1537 transitions. [2020-10-27 22:53:50,504 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1537 transitions. Word has length 242 [2020-10-27 22:53:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:53:50,505 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 1537 transitions. [2020-10-27 22:53:50,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:53:50,505 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1537 transitions. [2020-10-27 22:53:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-27 22:53:50,511 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:53:50,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:50,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:53:50,512 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:53:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:53:50,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1924668613, now seen corresponding path program 1 times [2020-10-27 22:53:50,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:53:50,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968985257] [2020-10-27 22:53:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:53:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:50,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:50,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:51,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:51,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:52,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:53,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:53,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:55,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:55,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-27 22:53:55,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:53:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-27 22:53:55,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:55,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:55,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-27 22:53:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:53:55,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:56,686 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:56,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:56,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:56,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:56,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:56,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 22:53:56,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:56,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:56,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:53:57,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-27 22:53:57,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-27 22:53:57,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:53:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:57,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:57,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:57,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:53:57,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:53:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:57,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:57,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:57,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:53:57,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:53:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:53:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:53:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:53:57,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:57,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:53:57,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-27 22:53:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:53:57,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:57,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:53:57,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-27 22:53:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:53:57,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-27 22:53:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:57,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:57,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:57,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:57,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:57,612 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 22:53:57,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968985257] [2020-10-27 22:53:57,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:57,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:53:57,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808025556] [2020-10-27 22:53:57,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:53:57,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:57,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:53:57,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:53:57,615 INFO L87 Difference]: Start difference. First operand 898 states and 1537 transitions. Second operand 11 states. [2020-10-27 22:53:58,711 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:05,826 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:06,521 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:07,325 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:07,833 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:08,489 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:08,784 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:09,775 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:10,039 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:11,783 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:12,285 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:13,630 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:13,919 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:14,261 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:14,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:14,404 INFO L93 Difference]: Finished difference Result 1766 states and 2947 transitions. [2020-10-27 22:54:14,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:54:14,406 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-10-27 22:54:14,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:14,414 INFO L225 Difference]: With dead ends: 1766 [2020-10-27 22:54:14,414 INFO L226 Difference]: Without dead ends: 1426 [2020-10-27 22:54:14,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:54:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-10-27 22:54:14,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1217. [2020-10-27 22:54:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-10-27 22:54:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 2056 transitions. [2020-10-27 22:54:14,606 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 2056 transitions. Word has length 246 [2020-10-27 22:54:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:14,607 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 2056 transitions. [2020-10-27 22:54:14,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:54:14,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 2056 transitions. [2020-10-27 22:54:14,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-27 22:54:14,612 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:14,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:14,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:54:14,613 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:14,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:14,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1834733217, now seen corresponding path program 1 times [2020-10-27 22:54:14,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:14,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603652306] [2020-10-27 22:54:14,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:14,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:14,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:15,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:16,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:17,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:17,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:17,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:18,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:18,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:18,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:19,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:19,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-27 22:54:19,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:54:19,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 22:54:19,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:19,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-27 22:54:19,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 22:54:19,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:20,761 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:20,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:20,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:20,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:20,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:20,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:20,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:54:20,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:20,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:20,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:20,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:20,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:20,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:54:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:20,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:21,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:21,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:54:21,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:21,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-27 22:54:21,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:21,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-27 22:54:21,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:21,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:54:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:21,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:21,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:21,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:54:21,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:21,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:54:21,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:21,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:54:21,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:21,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:54:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:21,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:21,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:21,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:21,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:54:21,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:21,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:21,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:21,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:54:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:21,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:21,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:21,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:21,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:54:21,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:54:21,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:54:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:21,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:54:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:21,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:21,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:21,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:21,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:21,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:54:21,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:21,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 22:54:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:21,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:21,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:21,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:21,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:21,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:54:21,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:21,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-27 22:54:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:21,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:21,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:21,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:21,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:21,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:54:21,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:21,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:21,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:21,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:21,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:21,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-27 22:54:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:21,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:21,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:21,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:21,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:21,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:54:21,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:21,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:21,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:21,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:21,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:21,655 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 22:54:21,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603652306] [2020-10-27 22:54:21,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:54:21,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:54:21,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572222264] [2020-10-27 22:54:21,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:54:21,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:54:21,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:54:21,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:54:21,660 INFO L87 Difference]: Start difference. First operand 1217 states and 2056 transitions. Second operand 11 states. [2020-10-27 22:54:22,740 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:29,858 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:30,551 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:31,113 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:31,778 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:32,075 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:33,369 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:33,666 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:34,899 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:35,196 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:37,098 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:38,369 WARN L193 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:38,662 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:38,967 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:39,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:39,141 INFO L93 Difference]: Finished difference Result 2911 states and 4796 transitions. [2020-10-27 22:54:39,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:54:39,147 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 250 [2020-10-27 22:54:39,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:39,159 INFO L225 Difference]: With dead ends: 2911 [2020-10-27 22:54:39,159 INFO L226 Difference]: Without dead ends: 2252 [2020-10-27 22:54:39,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:54:39,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2020-10-27 22:54:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1837. [2020-10-27 22:54:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-10-27 22:54:39,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 3056 transitions. [2020-10-27 22:54:39,429 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 3056 transitions. Word has length 250 [2020-10-27 22:54:39,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:39,429 INFO L481 AbstractCegarLoop]: Abstraction has 1837 states and 3056 transitions. [2020-10-27 22:54:39,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:54:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 3056 transitions. [2020-10-27 22:54:39,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-27 22:54:39,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:39,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:39,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:54:39,437 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:39,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:39,438 INFO L82 PathProgramCache]: Analyzing trace with hash 651225798, now seen corresponding path program 1 times [2020-10-27 22:54:39,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:39,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173110463] [2020-10-27 22:54:39,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:39,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:39,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:39,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:39,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:40,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:40,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:41,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:44,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:44,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-27 22:54:44,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:54:44,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-27 22:54:44,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-10-27 22:54:44,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:54:44,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:45,666 WARN L193 SmtUtils]: Spent 968.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:45,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:45,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:45,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:45,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:45,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:54:45,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:45,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:45,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:45,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:45,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:54:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:45,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:46,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:46,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:54:46,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:46,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-27 22:54:46,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:46,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:46,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:46,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-27 22:54:46,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:46,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:54:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:46,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:46,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:46,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:54:46,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:46,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:54:46,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:54:46,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:46,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:54:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:46,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:46,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:46,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:46,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:46,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:54:46,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:46,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:46,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:46,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:46,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:46,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:54:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:46,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:46,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:46,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:46,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:46,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 22:54:46,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:46,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:46,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:54:46,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:54:46,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:46,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-27 22:54:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:46,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:46,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:46,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:46,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:54:46,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:46,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:46,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-27 22:54:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:46,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:46,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:46,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:46,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:54:46,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:46,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:46,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-27 22:54:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:46,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:46,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:46,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:46,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:46,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:54:46,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:46,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:46,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:46,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:46,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-27 22:54:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:46,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:46,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:46,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:46,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:46,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:54:46,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:46,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:46,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:46,565 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 22:54:46,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173110463] [2020-10-27 22:54:46,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:54:46,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 22:54:46,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600614890] [2020-10-27 22:54:46,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:54:46,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:54:46,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:54:46,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:54:46,567 INFO L87 Difference]: Start difference. First operand 1837 states and 3056 transitions. Second operand 10 states. [2020-10-27 22:54:47,640 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 389 [2020-10-27 22:54:55,243 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:54:56,101 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:56,524 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:56,962 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:57,774 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:58,586 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:59,835 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:00,427 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:55:00,900 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 22:55:01,245 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:55:01,963 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:55:02,714 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:55:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:55:03,685 INFO L93 Difference]: Finished difference Result 3657 states and 6011 transitions. [2020-10-27 22:55:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 22:55:03,686 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2020-10-27 22:55:03,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:55:03,700 INFO L225 Difference]: With dead ends: 3657 [2020-10-27 22:55:03,700 INFO L226 Difference]: Without dead ends: 2990 [2020-10-27 22:55:03,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:55:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2020-10-27 22:55:04,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2417. [2020-10-27 22:55:04,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2417 states. [2020-10-27 22:55:04,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 4001 transitions. [2020-10-27 22:55:04,020 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 4001 transitions. Word has length 254 [2020-10-27 22:55:04,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:55:04,021 INFO L481 AbstractCegarLoop]: Abstraction has 2417 states and 4001 transitions. [2020-10-27 22:55:04,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:55:04,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 4001 transitions. [2020-10-27 22:55:04,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-27 22:55:04,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:55:04,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:04,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:55:04,026 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:55:04,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:55:04,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1666918467, now seen corresponding path program 1 times [2020-10-27 22:55:04,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:55:04,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448940713] [2020-10-27 22:55:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:55:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:04,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:04,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:04,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:04,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:05,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:08,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:09,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:09,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-27 22:55:09,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:55:09,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-27 22:55:09,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-27 22:55:09,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 22:55:09,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,169 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:55:10,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:55:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:55:10,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:55:10,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:10,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:10,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:10,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:55:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:55:10,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-27 22:55:10,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:10,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 22:55:10,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:55:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:55:10,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:55:10,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:10,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:55:10,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:55:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:10,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:55:10,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:10,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:10,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:55:10,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:55:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:10,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:55:10,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:10,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:10,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-27 22:55:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:10,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:55:10,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:10,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:10,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-27 22:55:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:10,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:55:10,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:10,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:10,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-27 22:55:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:10,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-27 22:55:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:10,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:10,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:10,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:10,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:55:10,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:10,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:10,883 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 22:55:10,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448940713] [2020-10-27 22:55:10,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:55:10,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:55:10,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170276081] [2020-10-27 22:55:10,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:55:10,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:55:10,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:55:10,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:55:10,886 INFO L87 Difference]: Start difference. First operand 2417 states and 4001 transitions. Second operand 11 states. [2020-10-27 22:55:11,925 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:19,056 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:19,491 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:20,126 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:20,438 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:21,012 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:21,311 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:22,219 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:22,510 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:23,315 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:23,605 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:25,488 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:26,176 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:26,497 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:55:27,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:55:27,035 INFO L93 Difference]: Finished difference Result 7186 states and 11676 transitions. [2020-10-27 22:55:27,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:55:27,040 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 254 [2020-10-27 22:55:27,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:55:27,063 INFO L225 Difference]: With dead ends: 7186 [2020-10-27 22:55:27,063 INFO L226 Difference]: Without dead ends: 5354 [2020-10-27 22:55:27,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:55:27,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2020-10-27 22:55:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 4149. [2020-10-27 22:55:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4149 states. [2020-10-27 22:55:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 6685 transitions. [2020-10-27 22:55:27,613 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 6685 transitions. Word has length 254 [2020-10-27 22:55:27,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:55:27,613 INFO L481 AbstractCegarLoop]: Abstraction has 4149 states and 6685 transitions. [2020-10-27 22:55:27,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:55:27,614 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 6685 transitions. [2020-10-27 22:55:27,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-27 22:55:27,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:55:27,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:27,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:55:27,620 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:55:27,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:55:27,620 INFO L82 PathProgramCache]: Analyzing trace with hash 552749287, now seen corresponding path program 1 times [2020-10-27 22:55:27,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:55:27,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031657618] [2020-10-27 22:55:27,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:55:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:27,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:27,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:27,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:28,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:28,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:28,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:29,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:29,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:29,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-27 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-27 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-27 22:55:32,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 22:55:32,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:33,736 WARN L193 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:55:33,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:55:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:33,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:33,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:33,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:55:33,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:33,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:55:33,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:33,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:33,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:55:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:33,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 22:55:33,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:34,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:55:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:34,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:55:34,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:34,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:55:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:34,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:34,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:34,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:34,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:55:34,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:34,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:55:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:34,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:55:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:34,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:34,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:34,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:34,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:34,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:55:34,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:34,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:55:34,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:34,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:55:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:34,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:34,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:34,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:34,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:34,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:55:34,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:34,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:55:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:34,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-27 22:55:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:34,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:34,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:34,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:34,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:34,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:55:34,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:55:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:34,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-27 22:55:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:34,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:34,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:34,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:34,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:34,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:55:34,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:34,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:34,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:34,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:55:34,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:34,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-27 22:55:34,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:34,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:34,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:34,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:34,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:34,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:55:34,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:34,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:34,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:34,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:34,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:34,495 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 22:55:34,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031657618] [2020-10-27 22:55:34,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:55:34,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:55:34,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5322542] [2020-10-27 22:55:34,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:55:34,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:55:34,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:55:34,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:55:34,498 INFO L87 Difference]: Start difference. First operand 4149 states and 6685 transitions. Second operand 11 states. [2020-10-27 22:55:35,547 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:42,737 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:43,554 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:44,085 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:44,826 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:45,477 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:45,891 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:47,089 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:47,623 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:48,292 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:48,826 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:50,099 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:50,390 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:50,743 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:55:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:55:51,148 INFO L93 Difference]: Finished difference Result 13365 states and 21249 transitions. [2020-10-27 22:55:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:55:51,149 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 258 [2020-10-27 22:55:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:55:51,192 INFO L225 Difference]: With dead ends: 13365 [2020-10-27 22:55:51,192 INFO L226 Difference]: Without dead ends: 9810 [2020-10-27 22:55:51,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:55:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9810 states. [2020-10-27 22:55:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9810 to 7485. [2020-10-27 22:55:52,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7485 states. [2020-10-27 22:55:52,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7485 states to 7485 states and 11877 transitions. [2020-10-27 22:55:52,177 INFO L78 Accepts]: Start accepts. Automaton has 7485 states and 11877 transitions. Word has length 258 [2020-10-27 22:55:52,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:55:52,178 INFO L481 AbstractCegarLoop]: Abstraction has 7485 states and 11877 transitions. [2020-10-27 22:55:52,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:55:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7485 states and 11877 transitions. [2020-10-27 22:55:52,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-27 22:55:52,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:55:52,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:55:52,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:55:52,184 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:55:52,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:55:52,184 INFO L82 PathProgramCache]: Analyzing trace with hash 2051169035, now seen corresponding path program 1 times [2020-10-27 22:55:52,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:55:52,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414185991] [2020-10-27 22:55:52,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:55:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:52,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:52,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:52,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:53,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:53,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:53,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:53,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:54,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:57,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:57,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-27 22:55:57,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:55:57,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-27 22:55:57,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:55:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-27 22:55:57,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 22:55:57,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:58,416 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:55:58,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:55:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:58,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:58,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:58,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:55:58,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:58,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 22:55:58,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:58,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:58,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:55:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:58,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:59,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:59,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:55:59,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 652 [2020-10-27 22:55:59,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:55:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:59,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-27 22:55:59,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:59,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:55:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:59,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:59,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:59,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:55:59,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:59,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:55:59,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:59,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:55:59,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:59,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:55:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:59,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:59,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:59,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:59,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:59,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:55:59,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:59,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:59,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:59,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:55:59,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:55:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:59,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:59,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:59,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:59,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:55:59,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:55:59,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:59,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:55:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:59,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:59,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:59,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:59,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:59,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:55:59,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:59,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:55:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:55:59,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-27 22:55:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:59,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:59,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:59,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:59,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:55:59,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:59,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:59,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:59,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:55:59,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:59,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-27 22:55:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:59,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:59,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:59,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:59,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:55:59,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:55:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:59,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-27 22:55:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:59,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:59,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:59,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:59,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:59,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:55:59,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:59,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:59,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:55:59,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:55:59,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:00,049 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 22:56:00,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414185991] [2020-10-27 22:56:00,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:00,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 22:56:00,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280357] [2020-10-27 22:56:00,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 22:56:00,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:00,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 22:56:00,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-27 22:56:00,052 INFO L87 Difference]: Start difference. First operand 7485 states and 11877 transitions. Second operand 19 states. [2020-10-27 22:56:02,427 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 398 DAG size of output: 395 [2020-10-27 22:56:10,619 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:56:11,672 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:56:12,860 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 392 [2020-10-27 22:56:13,970 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 393 [2020-10-27 22:56:14,860 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-27 22:56:15,483 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 22:56:16,765 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 396 [2020-10-27 22:56:17,478 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-27 22:56:17,888 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-27 22:56:18,952 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-27 22:56:19,297 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-27 22:56:20,399 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2020-10-27 22:56:20,910 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 22:56:21,925 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 182 [2020-10-27 22:56:24,038 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 397 DAG size of output: 396 [2020-10-27 22:56:24,720 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 183 [2020-10-27 22:56:25,036 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 183