/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 23:04:58,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 23:04:58,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 23:04:58,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 23:04:58,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 23:04:58,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 23:04:58,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 23:04:58,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 23:04:58,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 23:04:58,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 23:04:58,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 23:04:58,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 23:04:58,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 23:04:58,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 23:04:58,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 23:04:58,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 23:04:58,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 23:04:58,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 23:04:58,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 23:04:58,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 23:04:58,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 23:04:58,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 23:04:58,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 23:04:58,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 23:04:58,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 23:04:58,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 23:04:58,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 23:04:58,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 23:04:58,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 23:04:58,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 23:04:58,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 23:04:58,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 23:04:58,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 23:04:58,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 23:04:58,850 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 23:04:58,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 23:04:58,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 23:04:58,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 23:04:58,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 23:04:58,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 23:04:58,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 23:04:58,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 23:04:58,917 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 23:04:58,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 23:04:58,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 23:04:58,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 23:04:58,920 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 23:04:58,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 23:04:58,921 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 23:04:58,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 23:04:58,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 23:04:58,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 23:04:58,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 23:04:58,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 23:04:58,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 23:04:58,925 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 23:04:58,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 23:04:58,926 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 23:04:58,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 23:04:58,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 23:04:58,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 23:04:58,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 23:04:58,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 23:04:58,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:04:58,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 23:04:58,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 23:04:58,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 23:04:58,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 23:04:58,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 23:04:58,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 23:04:58,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 23:04:58,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 23:04:59,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 23:04:59,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 23:04:59,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 23:04:59,381 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 23:04:59,382 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 23:04:59,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-27 23:04:59,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/424debf76/d41104f0598b41a39afd015b7357d3fb/FLAG33074c4f2 [2020-10-27 23:05:00,273 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 23:05:00,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-27 23:05:00,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/424debf76/d41104f0598b41a39afd015b7357d3fb/FLAG33074c4f2 [2020-10-27 23:05:00,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/424debf76/d41104f0598b41a39afd015b7357d3fb [2020-10-27 23:05:00,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 23:05:00,601 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 23:05:00,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 23:05:00,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 23:05:00,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 23:05:00,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:05:00" (1/1) ... [2020-10-27 23:05:00,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51dc9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:00, skipping insertion in model container [2020-10-27 23:05:00,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:05:00" (1/1) ... [2020-10-27 23:05:00,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 23:05:00,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 23:05:00,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:05:00,967 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 23:05:01,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 23:05:01,059 INFO L208 MainTranslator]: Completed translation [2020-10-27 23:05:01,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01 WrapperNode [2020-10-27 23:05:01,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 23:05:01,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 23:05:01,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 23:05:01,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 23:05:01,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (1/1) ... [2020-10-27 23:05:01,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (1/1) ... [2020-10-27 23:05:01,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (1/1) ... [2020-10-27 23:05:01,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (1/1) ... [2020-10-27 23:05:01,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (1/1) ... [2020-10-27 23:05:01,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (1/1) ... [2020-10-27 23:05:01,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (1/1) ... [2020-10-27 23:05:01,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 23:05:01,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 23:05:01,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 23:05:01,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 23:05:01,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 23:05:01,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 23:05:01,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 23:05:01,257 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 23:05:01,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 23:05:01,257 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 23:05:01,258 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 23:05:01,258 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 23:05:01,258 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 23:05:01,259 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 23:05:01,259 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 23:05:01,260 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 23:05:01,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 23:05:01,261 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 23:05:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 23:05:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 23:05:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 23:05:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 23:05:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 23:05:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 23:05:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 23:05:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 23:05:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 23:05:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 23:05:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 23:05:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 23:05:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 23:05:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 23:05:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 23:05:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 23:05:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 23:05:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 23:05:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 23:05:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 23:05:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 23:05:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 23:05:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 23:05:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 23:05:02,175 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 23:05:02,176 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 23:05:02,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:05:02 BoogieIcfgContainer [2020-10-27 23:05:02,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 23:05:02,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 23:05:02,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 23:05:02,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 23:05:02,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:05:00" (1/3) ... [2020-10-27 23:05:02,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade922c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:05:02, skipping insertion in model container [2020-10-27 23:05:02,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:05:01" (2/3) ... [2020-10-27 23:05:02,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ade922c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:05:02, skipping insertion in model container [2020-10-27 23:05:02,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:05:02" (3/3) ... [2020-10-27 23:05:02,195 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c [2020-10-27 23:05:02,209 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 23:05:02,215 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 23:05:02,233 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 23:05:02,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 23:05:02,283 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 23:05:02,284 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 23:05:02,284 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 23:05:02,284 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 23:05:02,285 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 23:05:02,285 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 23:05:02,285 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 23:05:02,319 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-10-27 23:05:02,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 23:05:02,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:02,344 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] [2020-10-27 23:05:02,345 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:02,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:02,354 INFO L82 PathProgramCache]: Analyzing trace with hash -482011292, now seen corresponding path program 1 times [2020-10-27 23:05:02,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:02,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230318082] [2020-10-27 23:05:02,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:02,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 23:05:03,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-27 23:05:03,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:05:03,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 23:05:03,515 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:03,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:03,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 23:05:03,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:03,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:03,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:03,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:03,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:03,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:03,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:05:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:03,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:05:03,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:05:03,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:05:03,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:05:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:03,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 23:05:03,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:03,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:05:03,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:05:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:03,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:05:03,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:03,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:03,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:05:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:03,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:03,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:03,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:03,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:05:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:03,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:05:03,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:03,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:05:03,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:05:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:03,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:03,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:03,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:05:03,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 23:05:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:03,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:03,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:03,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:03,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:03,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:03,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:03,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:03,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:03,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:05:03,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:03,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230318082] [2020-10-27 23:05:03,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:03,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 23:05:03,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700924708] [2020-10-27 23:05:03,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 23:05:03,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:03,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 23:05:03,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 23:05:03,960 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 8 states. [2020-10-27 23:05:05,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:05,477 INFO L93 Difference]: Finished difference Result 275 states and 406 transitions. [2020-10-27 23:05:05,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 23:05:05,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-27 23:05:05,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:05,502 INFO L225 Difference]: With dead ends: 275 [2020-10-27 23:05:05,502 INFO L226 Difference]: Without dead ends: 157 [2020-10-27 23:05:05,510 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 23:05:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-27 23:05:05,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 152. [2020-10-27 23:05:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-27 23:05:05,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 230 transitions. [2020-10-27 23:05:05,622 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 230 transitions. Word has length 68 [2020-10-27 23:05:05,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:05,623 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 230 transitions. [2020-10-27 23:05:05,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 23:05:05,624 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 230 transitions. [2020-10-27 23:05:05,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 23:05:05,636 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:05,636 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] [2020-10-27 23:05:05,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 23:05:05,636 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:05,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:05,637 INFO L82 PathProgramCache]: Analyzing trace with hash -38110618, now seen corresponding path program 1 times [2020-10-27 23:05:05,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:05,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677497165] [2020-10-27 23:05:05,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:05,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:06,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:06,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-27 23:05:06,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:06,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 812 [2020-10-27 23:05:06,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:05:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 23:05:06,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:05:06,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:06,775 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:06,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:06,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:06,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:06,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:06,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:06,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 23:05:06,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:06,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:06,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:06,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:06,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:06,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:06,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:06,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:06,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:06,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:06,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:06,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:06,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-27 23:05:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:06,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:06,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:06,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:06,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:06,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:06,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 23:05:06,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:06,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:06,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-27 23:05:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:06,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:06,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:06,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:06,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:06,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:06,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:06,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:07,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 23:05:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:07,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:07,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:07,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:07,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:07,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:07,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:07,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:07,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-27 23:05:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:07,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:07,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:07,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:07,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:07,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:07,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:07,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:07,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:07,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:07,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:07,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 23:05:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:07,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:07,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:07,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:07,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:07,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:07,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:07,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:07,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:07,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:07,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:07,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-27 23:05:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:07,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:07,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:07,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:07,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:07,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:07,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 23:05:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:07,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:07,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 23:05:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:07,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:07,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:07,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:07,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:07,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:07,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:07,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:07,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:07,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:07,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677497165] [2020-10-27 23:05:07,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:07,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:05:07,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5336015] [2020-10-27 23:05:07,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:05:07,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:07,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:05:07,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:05:07,169 INFO L87 Difference]: Start difference. First operand 152 states and 230 transitions. Second operand 14 states. [2020-10-27 23:05:07,457 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:07,700 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:05:07,999 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:05:08,237 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:05:10,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:10,188 INFO L93 Difference]: Finished difference Result 276 states and 408 transitions. [2020-10-27 23:05:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 23:05:10,189 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-27 23:05:10,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:10,194 INFO L225 Difference]: With dead ends: 276 [2020-10-27 23:05:10,194 INFO L226 Difference]: Without dead ends: 168 [2020-10-27 23:05:10,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 23:05:10,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-27 23:05:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 152. [2020-10-27 23:05:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-27 23:05:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2020-10-27 23:05:10,230 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 68 [2020-10-27 23:05:10,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:10,230 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2020-10-27 23:05:10,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:05:10,230 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2020-10-27 23:05:10,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 23:05:10,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:10,234 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] [2020-10-27 23:05:10,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 23:05:10,237 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:10,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:10,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1583766444, now seen corresponding path program 1 times [2020-10-27 23:05:10,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:10,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28300846] [2020-10-27 23:05:10,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:10,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:10,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:10,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:10,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:11,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:11,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-27 23:05:15,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 23:05:15,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 23:05:15,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 23:05:15,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 23:05:15,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 23:05:15,609 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:15,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:15,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:05:15,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:15,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:15,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:15,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:15,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:15,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 23:05:15,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:15,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:15,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 23:05:15,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:15,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:15,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:15,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:15,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:15,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 23:05:15,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:15,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:15,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:15,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:15,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:15,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:15,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:15,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:15,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:05:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:15,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:15,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:15,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:15,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:15,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:05:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:15,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:05:15,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:15,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:15,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:05:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:15,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:05:15,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:15,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:15,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:15,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 23:05:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:15,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:15,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:15,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:15,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:15,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:15,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:15,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:15,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:15,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:15,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:15,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28300846] [2020-10-27 23:05:15,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:15,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:15,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018134931] [2020-10-27 23:05:15,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:15,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:15,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:15,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:15,994 INFO L87 Difference]: Start difference. First operand 152 states and 198 transitions. Second operand 11 states. [2020-10-27 23:05:16,228 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:18,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:18,611 INFO L93 Difference]: Finished difference Result 353 states and 485 transitions. [2020-10-27 23:05:18,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:18,613 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 99 [2020-10-27 23:05:18,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:18,620 INFO L225 Difference]: With dead ends: 353 [2020-10-27 23:05:18,620 INFO L226 Difference]: Without dead ends: 251 [2020-10-27 23:05:18,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:18,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-10-27 23:05:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 239. [2020-10-27 23:05:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-10-27 23:05:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 324 transitions. [2020-10-27 23:05:18,685 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 324 transitions. Word has length 99 [2020-10-27 23:05:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:18,686 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 324 transitions. [2020-10-27 23:05:18,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 324 transitions. [2020-10-27 23:05:18,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-27 23:05:18,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:18,692 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:05:18,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 23:05:18,692 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:18,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:18,695 INFO L82 PathProgramCache]: Analyzing trace with hash 45697484, now seen corresponding path program 1 times [2020-10-27 23:05:18,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:18,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439498933] [2020-10-27 23:05:18,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:18,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:18,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:18,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:19,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:21,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:23,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:23,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 23:05:23,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 23:05:23,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 23:05:23,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:23,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:23,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 23:05:23,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 23:05:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,042 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:24,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:24,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:05:24,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:24,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:24,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:24,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 23:05:24,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 23:05:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:24,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:24,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:24,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:24,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:24,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:24,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:24,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:24,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:24,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:24,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:24,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:05:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:24,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:24,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:24,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:24,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:24,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:05:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:24,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:05:24,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:24,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:24,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 23:05:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:24,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:24,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:24,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:24,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 23:05:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:24,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:24,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:24,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:24,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:24,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:24,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:24,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:24,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439498933] [2020-10-27 23:05:24,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:24,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:24,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931086968] [2020-10-27 23:05:24,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:24,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:24,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:24,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:24,354 INFO L87 Difference]: Start difference. First operand 239 states and 324 transitions. Second operand 11 states. [2020-10-27 23:05:24,589 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:26,831 INFO L93 Difference]: Finished difference Result 609 states and 852 transitions. [2020-10-27 23:05:26,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:26,839 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-27 23:05:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:26,844 INFO L225 Difference]: With dead ends: 609 [2020-10-27 23:05:26,844 INFO L226 Difference]: Without dead ends: 420 [2020-10-27 23:05:26,846 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-10-27 23:05:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 401. [2020-10-27 23:05:26,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-10-27 23:05:26,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 556 transitions. [2020-10-27 23:05:26,900 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 556 transitions. Word has length 100 [2020-10-27 23:05:26,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:26,900 INFO L481 AbstractCegarLoop]: Abstraction has 401 states and 556 transitions. [2020-10-27 23:05:26,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:26,900 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 556 transitions. [2020-10-27 23:05:26,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-27 23:05:26,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:26,902 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] [2020-10-27 23:05:26,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 23:05:26,903 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:26,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:26,903 INFO L82 PathProgramCache]: Analyzing trace with hash -232509902, now seen corresponding path program 1 times [2020-10-27 23:05:26,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:26,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1613655074] [2020-10-27 23:05:26,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:26,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:26,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:27,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:27,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:27,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:31,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:31,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 23:05:31,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 23:05:31,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 23:05:31,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 23:05:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-27 23:05:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,156 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:32,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:32,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:32,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:32,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:32,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:32,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:32,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 23:05:32,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:32,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:32,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 23:05:32,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:32,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:32,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:32,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:32,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:32,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:32,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:32,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:32,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:32,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:32,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:32,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:32,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:05:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:32,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:05:32,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:32,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:32,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:32,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 23:05:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:32,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:32,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:32,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 23:05:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:32,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 23:05:32,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:32,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:32,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 23:05:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:32,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:32,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:32,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:32,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:05:32,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:32,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:32,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:32,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:32,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1613655074] [2020-10-27 23:05:32,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:32,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:32,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575310552] [2020-10-27 23:05:32,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:32,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:32,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:32,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:32,488 INFO L87 Difference]: Start difference. First operand 401 states and 556 transitions. Second operand 11 states. [2020-10-27 23:05:32,717 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:35,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:35,210 INFO L93 Difference]: Finished difference Result 1083 states and 1524 transitions. [2020-10-27 23:05:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:35,211 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-27 23:05:35,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:35,223 INFO L225 Difference]: With dead ends: 1083 [2020-10-27 23:05:35,223 INFO L226 Difference]: Without dead ends: 732 [2020-10-27 23:05:35,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:35,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2020-10-27 23:05:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 701. [2020-10-27 23:05:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2020-10-27 23:05:35,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 980 transitions. [2020-10-27 23:05:35,348 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 980 transitions. Word has length 101 [2020-10-27 23:05:35,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:35,351 INFO L481 AbstractCegarLoop]: Abstraction has 701 states and 980 transitions. [2020-10-27 23:05:35,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 980 transitions. [2020-10-27 23:05:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 23:05:35,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:35,354 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] [2020-10-27 23:05:35,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 23:05:35,354 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:35,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:35,355 INFO L82 PathProgramCache]: Analyzing trace with hash 618605780, now seen corresponding path program 1 times [2020-10-27 23:05:35,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:35,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835242185] [2020-10-27 23:05:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:35,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:35,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:35,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:38,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:38,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-27 23:05:38,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 23:05:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3300 [2020-10-27 23:05:38,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 23:05:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 23:05:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:38,915 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:38,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:38,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:38,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:38,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:38,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:38,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:38,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:38,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:38,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:38,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:38,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:38,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:38,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:38,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:38,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:38,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:38,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:05:38,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:38,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:38,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:38,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:38,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:38,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:38,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:38,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:38,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:38,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:38,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:38,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:39,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:39,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:39,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:39,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:39,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:39,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:05:39,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:39,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:39,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:39,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:39,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:39,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:39,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:39,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:39,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:39,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:39,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:05:39,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:39,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:39,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-27 23:05:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:39,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:39,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:39,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:39,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:39,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:39,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:39,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:39,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:39,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-27 23:05:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:39,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:39,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:39,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:39,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:39,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:39,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:39,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:39,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:39,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:39,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:39,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 23:05:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:39,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:39,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:39,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:39,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:39,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:39,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:39,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:39,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:39,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:39,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 23:05:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:39,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:39,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:39,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:39,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:39,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:39,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:39,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:39,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:39,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835242185] [2020-10-27 23:05:39,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:39,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:39,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198447659] [2020-10-27 23:05:39,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:39,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:39,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:39,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:39,218 INFO L87 Difference]: Start difference. First operand 701 states and 980 transitions. Second operand 11 states. [2020-10-27 23:05:39,463 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:41,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:41,876 INFO L93 Difference]: Finished difference Result 1955 states and 2744 transitions. [2020-10-27 23:05:41,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:41,877 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 102 [2020-10-27 23:05:41,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:41,889 INFO L225 Difference]: With dead ends: 1955 [2020-10-27 23:05:41,890 INFO L226 Difference]: Without dead ends: 1304 [2020-10-27 23:05:41,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:41,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-10-27 23:05:42,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1253. [2020-10-27 23:05:42,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1253 states. [2020-10-27 23:05:42,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1748 transitions. [2020-10-27 23:05:42,010 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1748 transitions. Word has length 102 [2020-10-27 23:05:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:42,011 INFO L481 AbstractCegarLoop]: Abstraction has 1253 states and 1748 transitions. [2020-10-27 23:05:42,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1748 transitions. [2020-10-27 23:05:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 23:05:42,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:42,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 23:05:42,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 23:05:42,013 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:42,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:42,013 INFO L82 PathProgramCache]: Analyzing trace with hash 552434766, now seen corresponding path program 1 times [2020-10-27 23:05:42,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:42,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470249499] [2020-10-27 23:05:42,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:42,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:42,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:43,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:43,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 23:05:43,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:05:43,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1867 [2020-10-27 23:05:43,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:43,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:43,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 23:05:43,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 23:05:43,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,133 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:44,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:44,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 23:05:44,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:44,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 23:05:44,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:44,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:05:44,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:05:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:44,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:44,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:44,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:44,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:44,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:05:44,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:44,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:44,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:44,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:44,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:05:44,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:44,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:44,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:44,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:05:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:44,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:44,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:44,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:44,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:05:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:44,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:44,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:44,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:44,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:44,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:05:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:44,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:44,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:05:44,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:44,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:05:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:44,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:44,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:44,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:44,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:44,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:05:44,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 23:05:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:44,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470249499] [2020-10-27 23:05:44,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:44,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 23:05:44,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738608421] [2020-10-27 23:05:44,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 23:05:44,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:44,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 23:05:44,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-27 23:05:44,536 INFO L87 Difference]: Start difference. First operand 1253 states and 1748 transitions. Second operand 11 states. [2020-10-27 23:05:44,824 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:47,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:05:47,281 INFO L93 Difference]: Finished difference Result 3595 states and 5016 transitions. [2020-10-27 23:05:47,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 23:05:47,281 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2020-10-27 23:05:47,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:05:47,295 INFO L225 Difference]: With dead ends: 3595 [2020-10-27 23:05:47,296 INFO L226 Difference]: Without dead ends: 2392 [2020-10-27 23:05:47,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:05:47,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2020-10-27 23:05:47,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2309. [2020-10-27 23:05:47,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2309 states. [2020-10-27 23:05:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 3204 transitions. [2020-10-27 23:05:47,542 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 3204 transitions. Word has length 103 [2020-10-27 23:05:47,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:05:47,543 INFO L481 AbstractCegarLoop]: Abstraction has 2309 states and 3204 transitions. [2020-10-27 23:05:47,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 23:05:47,543 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 3204 transitions. [2020-10-27 23:05:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-27 23:05:47,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:05:47,545 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] [2020-10-27 23:05:47,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 23:05:47,545 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:05:47,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:05:47,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1097603444, now seen corresponding path program 1 times [2020-10-27 23:05:47,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:05:47,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567622002] [2020-10-27 23:05:47,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:05:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:47,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:47,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 23:05:52,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:05:52,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4719 [2020-10-27 23:05:52,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 23:05:52,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 23:05:52,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-27 23:05:52,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,548 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:05:52,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:05:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:05:52,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:05:52,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:05:52,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:52,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:05:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:05:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:05:52,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 23:05:52,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 23:05:52,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:52,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 23:05:52,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:05:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:05:52,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:05:52,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:05:52,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:05:52,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:05:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:05:52,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:05:52,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:52,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:52,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 23:05:52,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:05:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:52,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:05:52,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:52,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:52,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:52,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:05:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:52,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:52,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:05:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:52,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 23:05:52,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:52,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:52,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:05:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:05:52,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:05:52,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:05:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 23:05:52,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 23:05:52,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:52,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:05:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:05:52,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:05:52,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:05:52,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 23:05:52,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:05:52,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:05:52,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:05:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:05:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 23:05:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 23:05:52,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:05:53,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:05:53,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567622002] [2020-10-27 23:05:53,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:05:53,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-27 23:05:53,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194244407] [2020-10-27 23:05:53,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 23:05:53,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:05:53,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 23:05:53,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2020-10-27 23:05:53,042 INFO L87 Difference]: Start difference. First operand 2309 states and 3204 transitions. Second operand 20 states. [2020-10-27 23:05:53,316 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:05:53,540 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-27 23:05:53,754 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:05:54,000 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:05:54,241 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:05:58,857 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:05:59,040 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:05:59,232 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:05:59,464 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2020-10-27 23:05:59,697 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 23:06:08,802 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-10-27 23:06:10,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:10,078 INFO L93 Difference]: Finished difference Result 28630 states and 39978 transitions. [2020-10-27 23:06:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-27 23:06:10,079 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 103 [2020-10-27 23:06:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:10,269 INFO L225 Difference]: With dead ends: 28630 [2020-10-27 23:06:10,270 INFO L226 Difference]: Without dead ends: 26371 [2020-10-27 23:06:10,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3999 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=2091, Invalid=9465, Unknown=0, NotChecked=0, Total=11556 [2020-10-27 23:06:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26371 states. [2020-10-27 23:06:12,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26371 to 25461. [2020-10-27 23:06:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25461 states. [2020-10-27 23:06:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25461 states to 25461 states and 35508 transitions. [2020-10-27 23:06:12,782 INFO L78 Accepts]: Start accepts. Automaton has 25461 states and 35508 transitions. Word has length 103 [2020-10-27 23:06:12,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:12,782 INFO L481 AbstractCegarLoop]: Abstraction has 25461 states and 35508 transitions. [2020-10-27 23:06:12,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 23:06:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 25461 states and 35508 transitions. [2020-10-27 23:06:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-27 23:06:12,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:12,784 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] [2020-10-27 23:06:12,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 23:06:12,784 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:12,785 INFO L82 PathProgramCache]: Analyzing trace with hash -301258448, now seen corresponding path program 1 times [2020-10-27 23:06:12,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:12,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394420080] [2020-10-27 23:06:12,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:12,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:13,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:14,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 23:06:14,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:06:14,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1597 [2020-10-27 23:06:14,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 23:06:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-27 23:06:14,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 23:06:14,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:14,747 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:14,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:14,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:14,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:14,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:14,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 23:06:14,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:14,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:14,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:14,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:14,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:14,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 23:06:14,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:14,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:14,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:14,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:14,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:14,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:14,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 23:06:14,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:14,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:14,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:14,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:14,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:14,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:14,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:14,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:06:14,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:14,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:14,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:06:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:14,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:14,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:14,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:14,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:14,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:14,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:14,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:14,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:06:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:14,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:14,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:14,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:14,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:06:14,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:14,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:14,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:14,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:06:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:14,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:14,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:14,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:14,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:14,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:14,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:14,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:14,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:14,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:06:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:15,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:15,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:15,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:15,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:15,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 23:06:15,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:15,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:15,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:15,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:06:15,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:15,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:15,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:15,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:15,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:15,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:06:15,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:15,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 23:06:15,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:15,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 23:06:15,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:15,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:06:15,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394420080] [2020-10-27 23:06:15,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:15,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 23:06:15,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687884729] [2020-10-27 23:06:15,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 23:06:15,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:15,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 23:06:15,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 23:06:15,070 INFO L87 Difference]: Start difference. First operand 25461 states and 35508 transitions. Second operand 14 states. [2020-10-27 23:06:16,655 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 23:06:16,875 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-27 23:06:17,131 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-27 23:06:17,375 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:06:20,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:06:20,120 INFO L93 Difference]: Finished difference Result 30344 states and 43046 transitions. [2020-10-27 23:06:20,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 23:06:20,121 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 104 [2020-10-27 23:06:20,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:06:20,282 INFO L225 Difference]: With dead ends: 30344 [2020-10-27 23:06:20,283 INFO L226 Difference]: Without dead ends: 30341 [2020-10-27 23:06:20,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-27 23:06:20,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30341 states. [2020-10-27 23:06:22,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30341 to 27189. [2020-10-27 23:06:22,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27189 states. [2020-10-27 23:06:22,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27189 states to 27189 states and 37236 transitions. [2020-10-27 23:06:22,766 INFO L78 Accepts]: Start accepts. Automaton has 27189 states and 37236 transitions. Word has length 104 [2020-10-27 23:06:22,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 23:06:22,767 INFO L481 AbstractCegarLoop]: Abstraction has 27189 states and 37236 transitions. [2020-10-27 23:06:22,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 23:06:22,767 INFO L276 IsEmpty]: Start isEmpty. Operand 27189 states and 37236 transitions. [2020-10-27 23:06:22,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 23:06:22,769 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 23:06:22,769 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] [2020-10-27 23:06:22,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 23:06:22,769 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 23:06:22,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 23:06:22,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1018602012, now seen corresponding path program 1 times [2020-10-27 23:06:22,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 23:06:22,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547491908] [2020-10-27 23:06:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 23:06:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:22,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:22,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 23:06:24,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 23:06:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1270 [2020-10-27 23:06:24,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 23:06:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 23:06:24,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 23:06:24,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,325 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-27 23:06:24,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 23:06:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 23:06:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 23:06:24,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 23:06:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 23:06:24,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 23:06:24,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:24,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 23:06:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 23:06:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 23:06:24,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 23:06:24,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:24,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:24,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:24,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 23:06:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 23:06:24,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 23:06:24,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 23:06:24,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 23:06:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:24,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 23:06:24,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:24,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 23:06:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:24,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 23:06:24,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-27 23:06:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:24,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 23:06:24,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 23:06:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 23:06:24,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 23:06:24,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 23:06:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:24,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 23:06:24,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 23:06:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 23:06:24,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 23:06:24,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 23:06:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 23:06:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 23:06:24,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 23:06:24,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 23:06:24,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 23:06:24,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 23:06:24,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 23:06:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 23:06:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-27 23:06:24,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 23:06:24,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 23:06:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 23:06:24,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547491908] [2020-10-27 23:06:24,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 23:06:24,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-27 23:06:24,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349912551] [2020-10-27 23:06:24,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 23:06:24,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 23:06:24,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 23:06:24,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-10-27 23:06:24,785 INFO L87 Difference]: Start difference. First operand 27189 states and 37236 transitions. Second operand 18 states. [2020-10-27 23:06:25,182 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:25,441 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:26,072 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:26,616 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:06:27,094 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:27,336 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:27,996 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:28,256 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:06:28,500 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:06:29,006 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2020-10-27 23:06:29,255 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:06:29,706 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2020-10-27 23:06:30,075 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 23:06:31,241 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:31,576 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:31,847 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:32,174 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:32,440 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:32,743 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:32,976 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:33,464 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-27 23:06:33,700 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:34,387 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:34,623 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:34,907 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:35,203 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:35,763 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:35,993 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:37,954 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:06:38,208 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:38,474 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:06:38,722 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:38,990 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:06:39,248 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:39,579 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:39,822 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:40,084 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:40,343 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:40,733 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:41,037 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:41,312 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 23:06:41,583 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 23:06:42,068 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:42,328 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:43,047 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:43,305 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:43,586 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:43,838 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:44,110 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2020-10-27 23:06:44,366 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 23:06:45,267 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:45,512 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:45,769 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:46,025 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:46,567 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2020-10-27 23:06:46,816 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 23:06:47,038 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-27 23:06:47,714 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 23:06:47,971 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 23:06:55,087 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-27 23:07:58,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 23:07:58,407 INFO L93 Difference]: Finished difference Result 666612 states and 961114 transitions. [2020-10-27 23:07:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2020-10-27 23:07:58,409 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 105 [2020-10-27 23:07:58,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 23:08:02,323 INFO L225 Difference]: With dead ends: 666612 [2020-10-27 23:08:02,323 INFO L226 Difference]: Without dead ends: 639473 [2020-10-27 23:08:03,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42609 ImplicationChecksByTransitivity, 36.1s TimeCoverageRelationStatistics Valid=8249, Invalid=89407, Unknown=0, NotChecked=0, Total=97656 [2020-10-27 23:08:03,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639473 states.