/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:52:56,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:52:56,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:52:56,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:52:56,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:52:56,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:52:56,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:52:56,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:52:56,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:52:56,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:52:56,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:52:56,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:52:56,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:52:56,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:52:56,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:52:56,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:52:56,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:52:56,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:52:56,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:52:56,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:52:56,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:52:56,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:52:56,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:52:56,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:52:56,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:52:56,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:52:56,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:52:56,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:52:56,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:52:56,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:52:56,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:52:56,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:52:56,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:52:56,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:52:56,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:52:56,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:52:56,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:52:56,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:52:56,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:52:56,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:52:56,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:52:56,255 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 22:52:56,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:52:56,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:52:56,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:52:56,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:52:56,294 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:52:56,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:52:56,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:52:56,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:52:56,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:52:56,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:52:56,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:52:56,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:52:56,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:52:56,298 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:52:56,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:52:56,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:52:56,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:52:56,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:52:56,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:52:56,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:52:56,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:52:56,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:52:56,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:52:56,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:52:56,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:52:56,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:52:56,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:52:56,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:52:56,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:52:56,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:52:56,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:52:56,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:52:56,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:52:56,874 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:52:56,875 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:52:56,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c [2020-10-27 22:52:56,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c4a1d5d6/2d7b2e5e1a7b459dbfff7ce28c421cd1/FLAG218a05572 [2020-10-27 22:52:57,658 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:52:57,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.5.4.ufo.BOUNDED-10.pals.c [2020-10-27 22:52:57,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c4a1d5d6/2d7b2e5e1a7b459dbfff7ce28c421cd1/FLAG218a05572 [2020-10-27 22:52:57,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3c4a1d5d6/2d7b2e5e1a7b459dbfff7ce28c421cd1 [2020-10-27 22:52:57,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:52:57,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:52:57,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:52:57,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:52:57,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:52:57,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:52:57" (1/1) ... [2020-10-27 22:52:57,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f5f840 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:57, skipping insertion in model container [2020-10-27 22:52:57,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:52:57" (1/1) ... [2020-10-27 22:52:57,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:52:58,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:52:58,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:52:58,656 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:52:58,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:52:58,840 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:52:58,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58 WrapperNode [2020-10-27 22:52:58,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:52:58,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:52:58,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:52:58,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:52:58,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (1/1) ... [2020-10-27 22:52:58,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (1/1) ... [2020-10-27 22:52:58,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (1/1) ... [2020-10-27 22:52:58,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (1/1) ... [2020-10-27 22:52:58,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (1/1) ... [2020-10-27 22:52:58,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (1/1) ... [2020-10-27 22:52:58,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (1/1) ... [2020-10-27 22:52:59,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:52:59,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:52:59,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:52:59,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:52:59,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:52:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:52:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:52:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:52:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 22:52:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-27 22:52:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-27 22:52:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-27 22:52:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-27 22:52:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-27 22:52:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 22:52:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-27 22:52:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:52:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-27 22:52:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:52:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:52:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:52:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:52:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-27 22:52:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-27 22:52:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-27 22:52:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 22:52:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-27 22:52:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-27 22:52:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-27 22:52:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-27 22:52:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-27 22:52:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-27 22:52:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-27 22:52:59,104 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 22:52:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-27 22:52:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:52:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:52:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:52:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:52:59,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:52:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:52:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:53:02,334 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:53:02,335 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 22:53:02,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:53:02 BoogieIcfgContainer [2020-10-27 22:53:02,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:53:02,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:53:02,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:53:02,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:53:02,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:52:57" (1/3) ... [2020-10-27 22:53:02,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12399cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:53:02, skipping insertion in model container [2020-10-27 22:53:02,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:52:58" (2/3) ... [2020-10-27 22:53:02,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12399cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:53:02, skipping insertion in model container [2020-10-27 22:53:02,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:53:02" (3/3) ... [2020-10-27 22:53:02,348 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.5.4.ufo.BOUNDED-10.pals.c [2020-10-27 22:53:02,361 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:53:02,368 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:53:02,382 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:53:02,419 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:53:02,420 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:53:02,420 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:53:02,420 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:53:02,420 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:53:02,420 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:53:02,420 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:53:02,420 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:53:02,456 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states. [2020-10-27 22:53:02,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 22:53:02,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:53:02,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:53:02,513 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:53:02,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:53:02,527 INFO L82 PathProgramCache]: Analyzing trace with hash -966148239, now seen corresponding path program 1 times [2020-10-27 22:53:02,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:53:02,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391164332] [2020-10-27 22:53:02,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:53:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:03,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:04,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:04,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 22:53:04,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:04,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-10-27 22:53:04,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:04,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:04,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-10-27 22:53:04,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:04,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:53:05,573 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:05,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:05,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 22:53:05,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:05,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:05,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:05,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:05,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:05,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 22:53:05,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:05,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-27 22:53:05,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:05,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:05,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:05,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:05,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:06,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:53:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:06,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:06,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:06,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:06,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:06,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:06,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:06,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:06,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:53:06,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:06,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:06,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:53:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:06,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:06,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:06,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:06,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:53:06,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:06,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:06,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:06,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:06,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:06,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 22:53:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:06,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:06,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:06,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:06,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:06,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:53:06,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:06,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:06,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:06,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:06,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 22:53:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:06,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:06,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:06,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:06,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:06,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:06,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:06,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:06,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:06,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:06,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:06,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 22:53:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:06,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:06,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:06,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:06,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:06,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:06,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:06,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:06,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:06,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 22:53:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:06,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:06,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:06,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:06,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:06,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:53:06,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:06,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:06,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:06,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 22:53:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:06,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:06,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:06,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:06,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:06,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:53:06,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:06,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:53:06,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [391164332] [2020-10-27 22:53:06,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:06,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-27 22:53:06,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717127143] [2020-10-27 22:53:06,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:53:06,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:06,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:53:06,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:53:06,476 INFO L87 Difference]: Start difference. First operand 742 states. Second operand 8 states. [2020-10-27 22:53:09,634 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:10,282 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:10,991 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:11,569 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:12,123 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:53:12,928 INFO L93 Difference]: Finished difference Result 976 states and 1721 transitions. [2020-10-27 22:53:12,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:53:12,932 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2020-10-27 22:53:12,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:53:12,959 INFO L225 Difference]: With dead ends: 976 [2020-10-27 22:53:12,959 INFO L226 Difference]: Without dead ends: 784 [2020-10-27 22:53:12,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:53:12,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-10-27 22:53:13,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 734. [2020-10-27 22:53:13,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-27 22:53:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1328 transitions. [2020-10-27 22:53:13,257 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1328 transitions. Word has length 183 [2020-10-27 22:53:13,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:53:13,261 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 1328 transitions. [2020-10-27 22:53:13,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:53:13,261 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1328 transitions. [2020-10-27 22:53:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-27 22:53:13,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:53:13,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:53:13,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:53:13,278 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:53:13,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:53:13,278 INFO L82 PathProgramCache]: Analyzing trace with hash 973013807, now seen corresponding path program 1 times [2020-10-27 22:53:13,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:53:13,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315991949] [2020-10-27 22:53:13,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:53:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:13,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:16,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:16,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 22:53:16,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:16,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3224 [2020-10-27 22:53:16,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:16,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:53:16,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-27 22:53:16,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:53:16,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:17,903 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:17,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:17,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:17,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:17,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:17,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:17,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 22:53:17,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:17,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:17,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:17,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-27 22:53:18,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 642 [2020-10-27 22:53:18,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:18,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:18,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-27 22:53:18,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 22:53:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:18,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:53:18,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:18,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 22:53:18,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:53:18,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 22:53:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:18,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:18,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:18,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:18,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:18,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:18,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:18,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:18,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 22:53:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:18,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:18,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:18,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:18,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:19,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:19,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:19,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:19,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 22:53:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:19,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:19,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:19,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:19,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:19,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:19,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:19,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:19,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:19,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:19,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:19,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 22:53:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:19,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:19,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:19,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:19,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:19,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:19,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:19,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:19,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:19,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:53:19,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-27 22:53:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:19,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:19,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:19,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:19,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:19,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:19,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:19,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 22:53:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:19,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:19,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:19,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:19,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:19,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:53:19,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:19,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:19,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:53:19,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315991949] [2020-10-27 22:53:19,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:19,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-27 22:53:19,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338097855] [2020-10-27 22:53:19,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:53:19,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:19,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:53:19,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:53:19,354 INFO L87 Difference]: Start difference. First operand 734 states and 1328 transitions. Second operand 14 states. [2020-10-27 22:53:29,406 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:53:30,607 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-27 22:53:31,989 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 396 [2020-10-27 22:53:33,131 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 400 [2020-10-27 22:53:34,574 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:35,348 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:36,266 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:37,103 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:37,973 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:39,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:53:39,451 INFO L93 Difference]: Finished difference Result 977 states and 1723 transitions. [2020-10-27 22:53:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:53:39,456 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 183 [2020-10-27 22:53:39,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:53:39,462 INFO L225 Difference]: With dead ends: 977 [2020-10-27 22:53:39,463 INFO L226 Difference]: Without dead ends: 795 [2020-10-27 22:53:39,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:53:39,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2020-10-27 22:53:39,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 734. [2020-10-27 22:53:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-10-27 22:53:39,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1268 transitions. [2020-10-27 22:53:39,635 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1268 transitions. Word has length 183 [2020-10-27 22:53:39,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:53:39,636 INFO L481 AbstractCegarLoop]: Abstraction has 734 states and 1268 transitions. [2020-10-27 22:53:39,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:53:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1268 transitions. [2020-10-27 22:53:39,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-27 22:53:39,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:53:39,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:53:39,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:53:39,652 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:53:39,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:53:39,653 INFO L82 PathProgramCache]: Analyzing trace with hash -929784361, now seen corresponding path program 1 times [2020-10-27 22:53:39,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:53:39,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552726134] [2020-10-27 22:53:39,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:53:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:39,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:40,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:40,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:41,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:44,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:44,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-10-27 22:53:44,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 22:53:44,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-10-27 22:53:44,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-27 22:53:44,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-27 22:53:44,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:53:45,907 WARN L193 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:53:45,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:53:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:45,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:45,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:45,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:53:45,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:45,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 22:53:45,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:45,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:45,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:45,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:45,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:45,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:53:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:46,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:46,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:46,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:53:46,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-27 22:53:46,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:46,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:53:46,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:46,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:53:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:46,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:46,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:46,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:53:46,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:46,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:46,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:53:46,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:46,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:53:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:46,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:46,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:46,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:46,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:46,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:46,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:53:46,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:46,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:53:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:46,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:46,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:46,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:46,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:46,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:53:46,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:46,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:53:46,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:46,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:53:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:46,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:46,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:46,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:46,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:53:46,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:53:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:53:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:53:46,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:46,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-27 22:53:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:46,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:46,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:46,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:46,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:46,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:53:46,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:46,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:53:46,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:53:46,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:53:46,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:46,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-10-27 22:53:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:46,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:46,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:46,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:46,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:46,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:53:46,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:46,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:46,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:46,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2020-10-27 22:53:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:53:46,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:53:46,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:53:46,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:53:46,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:53:46,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:53:46,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:53:46,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:53:46,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:53:46,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:53:46,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:53:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:53:47,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552726134] [2020-10-27 22:53:47,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:53:47,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:53:47,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526219661] [2020-10-27 22:53:47,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:53:47,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:53:47,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:53:47,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:53:47,046 INFO L87 Difference]: Start difference. First operand 734 states and 1268 transitions. Second operand 11 states. [2020-10-27 22:53:48,084 WARN L193 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:53:55,381 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:56,102 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:56,863 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:57,601 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:53:58,121 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:53:58,708 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:53:58,999 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:00,678 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:01,188 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:01,719 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:02,994 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:03,285 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:03,602 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:03,697 INFO L93 Difference]: Finished difference Result 1180 states and 1994 transitions. [2020-10-27 22:54:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:54:03,698 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 242 [2020-10-27 22:54:03,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:03,706 INFO L225 Difference]: With dead ends: 1180 [2020-10-27 22:54:03,706 INFO L226 Difference]: Without dead ends: 1004 [2020-10-27 22:54:03,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:54:03,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2020-10-27 22:54:03,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 898. [2020-10-27 22:54:03,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-10-27 22:54:03,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1537 transitions. [2020-10-27 22:54:03,869 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1537 transitions. Word has length 242 [2020-10-27 22:54:03,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:03,870 INFO L481 AbstractCegarLoop]: Abstraction has 898 states and 1537 transitions. [2020-10-27 22:54:03,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:54:03,870 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1537 transitions. [2020-10-27 22:54:03,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-27 22:54:03,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:03,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:54:03,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:54:03,877 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:03,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1924668613, now seen corresponding path program 1 times [2020-10-27 22:54:03,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:03,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735714543] [2020-10-27 22:54:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:04,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:04,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:04,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:05,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:05,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:06,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:09,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:09,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-27 22:54:09,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 22:54:09,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-27 22:54:09,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-10-27 22:54:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:54:09,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,061 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:10,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:10,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:54:10,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:10,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:10,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:54:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:54:10,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-10-27 22:54:10,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:10,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-27 22:54:10,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:54:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:54:10,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:54:10,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:10,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:10,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:54:10,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:54:10,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:54:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:10,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:54:10,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:10,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:10,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:10,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:54:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:10,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:54:10,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:10,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:10,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:54:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:10,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:54:10,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:10,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:54:10,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:54:10,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-10-27 22:54:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:10,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:54:10,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:10,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-27 22:54:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:10,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:54:10,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:10,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:10,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-27 22:54:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:10,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:10,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:10,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:10,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:54:10,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:10,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:10,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:10,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:10,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:54:11,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735714543] [2020-10-27 22:54:11,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:54:11,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:54:11,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850457157] [2020-10-27 22:54:11,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:54:11,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:54:11,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:54:11,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:54:11,050 INFO L87 Difference]: Start difference. First operand 898 states and 1537 transitions. Second operand 11 states. [2020-10-27 22:54:12,243 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:19,558 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:20,207 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:20,933 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:21,432 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:22,075 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:22,351 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:23,276 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:23,541 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:25,152 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:25,652 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:26,931 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:27,215 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:27,518 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:27,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:27,676 INFO L93 Difference]: Finished difference Result 1766 states and 2947 transitions. [2020-10-27 22:54:27,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:54:27,679 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-10-27 22:54:27,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:27,687 INFO L225 Difference]: With dead ends: 1766 [2020-10-27 22:54:27,687 INFO L226 Difference]: Without dead ends: 1426 [2020-10-27 22:54:27,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:54:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-10-27 22:54:27,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1217. [2020-10-27 22:54:27,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1217 states. [2020-10-27 22:54:27,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 2056 transitions. [2020-10-27 22:54:27,877 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 2056 transitions. Word has length 246 [2020-10-27 22:54:27,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:27,877 INFO L481 AbstractCegarLoop]: Abstraction has 1217 states and 2056 transitions. [2020-10-27 22:54:27,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:54:27,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 2056 transitions. [2020-10-27 22:54:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-27 22:54:27,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:27,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:54:27,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:54:27,883 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:27,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:27,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1834733217, now seen corresponding path program 1 times [2020-10-27 22:54:27,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:27,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178975310] [2020-10-27 22:54:27,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:28,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:28,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:28,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:29,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:30,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:31,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:31,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:31,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:31,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:32,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:32,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:32,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-27 22:54:32,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 22:54:32,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 22:54:32,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:32,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-27 22:54:32,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-27 22:54:32,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:34,158 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:34,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:34,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:34,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:34,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:34,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:34,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:54:34,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:34,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:34,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:34,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:54:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:34,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:34,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:34,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:54:34,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:34,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-27 22:54:34,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-27 22:54:34,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:34,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:54:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:34,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:34,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:34,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:54:34,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:34,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:54:34,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:34,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:54:34,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:34,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:54:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:34,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:34,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:34,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:34,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:54:34,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:34,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:54:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:34,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:34,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:34,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:34,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:34,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:54:34,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:34,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:54:34,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:54:34,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:34,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 22:54:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:34,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:34,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:34,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:34,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:34,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:54:34,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:34,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:34,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:34,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:34,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:35,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-27 22:54:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:35,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:35,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:35,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:35,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:35,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:54:35,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:35,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:35,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:35,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:35,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-10-27 22:54:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:35,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:35,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:35,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:35,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:35,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:54:35,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:35,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:35,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:35,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:35,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-10-27 22:54:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:35,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:35,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:35,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:35,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:35,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:54:35,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:35,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:54:35,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178975310] [2020-10-27 22:54:35,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:54:35,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:54:35,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794476933] [2020-10-27 22:54:35,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:54:35,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:54:35,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:54:35,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:54:35,215 INFO L87 Difference]: Start difference. First operand 1217 states and 2056 transitions. Second operand 11 states. [2020-10-27 22:54:36,272 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:43,440 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:44,121 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:44,682 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:45,292 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:45,587 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:46,823 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:47,094 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:48,254 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:48,529 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:54:50,430 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:54:51,691 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:54:51,985 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:54:52,291 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:54:52,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:54:52,437 INFO L93 Difference]: Finished difference Result 2911 states and 4796 transitions. [2020-10-27 22:54:52,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:54:52,445 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 250 [2020-10-27 22:54:52,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:54:52,458 INFO L225 Difference]: With dead ends: 2911 [2020-10-27 22:54:52,459 INFO L226 Difference]: Without dead ends: 2252 [2020-10-27 22:54:52,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:54:52,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2020-10-27 22:54:52,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1837. [2020-10-27 22:54:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1837 states. [2020-10-27 22:54:52,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 3056 transitions. [2020-10-27 22:54:52,766 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 3056 transitions. Word has length 250 [2020-10-27 22:54:52,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:54:52,767 INFO L481 AbstractCegarLoop]: Abstraction has 1837 states and 3056 transitions. [2020-10-27 22:54:52,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:54:52,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 3056 transitions. [2020-10-27 22:54:52,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-27 22:54:52,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:54:52,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:54:52,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:54:52,774 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:54:52,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:54:52,775 INFO L82 PathProgramCache]: Analyzing trace with hash 651225798, now seen corresponding path program 1 times [2020-10-27 22:54:52,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:54:52,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173609328] [2020-10-27 22:54:52,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:54:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:52,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:53,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:53,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:53,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:54,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:54,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:57,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:57,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-27 22:54:57,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:54:57,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-27 22:54:57,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-10-27 22:54:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:54:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,075 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:54:59,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:54:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:54:59,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:54:59,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:54:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:54:59,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-27 22:54:59,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:59,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-27 22:54:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:54:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:54:59,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:54:59,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:59,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:54:59,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:54:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:59,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:54:59,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:54:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:54:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 22:54:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:54:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:59,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:54:59,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:54:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:54:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:54:59,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-27 22:54:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:59,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:54:59,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-27 22:54:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:54:59,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:54:59,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:54:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-27 22:54:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:59,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:54:59,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:59,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:59,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:59,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:54:59,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-27 22:54:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:54:59,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:54:59,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:54:59,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:54:59,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:54:59,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:54:59,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:54:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:54:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:54:59,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:54:59,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:55:00,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173609328] [2020-10-27 22:55:00,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:55:00,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 22:55:00,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745687402] [2020-10-27 22:55:00,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:55:00,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:55:00,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:55:00,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:55:00,032 INFO L87 Difference]: Start difference. First operand 1837 states and 3056 transitions. Second operand 10 states. [2020-10-27 22:55:01,116 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 389 [2020-10-27 22:55:08,925 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:55:09,719 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:10,080 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:10,501 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:11,250 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:11,988 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:13,181 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:13,705 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2020-10-27 22:55:14,165 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2020-10-27 22:55:14,510 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:55:15,201 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:55:15,944 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2020-10-27 22:55:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:55:16,896 INFO L93 Difference]: Finished difference Result 3657 states and 6011 transitions. [2020-10-27 22:55:16,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 22:55:16,897 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2020-10-27 22:55:16,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:55:16,911 INFO L225 Difference]: With dead ends: 3657 [2020-10-27 22:55:16,911 INFO L226 Difference]: Without dead ends: 2990 [2020-10-27 22:55:16,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-10-27 22:55:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2020-10-27 22:55:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2417. [2020-10-27 22:55:17,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2417 states. [2020-10-27 22:55:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2417 states to 2417 states and 4001 transitions. [2020-10-27 22:55:17,228 INFO L78 Accepts]: Start accepts. Automaton has 2417 states and 4001 transitions. Word has length 254 [2020-10-27 22:55:17,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:55:17,229 INFO L481 AbstractCegarLoop]: Abstraction has 2417 states and 4001 transitions. [2020-10-27 22:55:17,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:55:17,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2417 states and 4001 transitions. [2020-10-27 22:55:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-10-27 22:55:17,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:55:17,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:55:17,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:55:17,233 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:55:17,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:55:17,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1666918467, now seen corresponding path program 1 times [2020-10-27 22:55:17,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:55:17,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48255534] [2020-10-27 22:55:17,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:55:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:17,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:17,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:17,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:18,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:18,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:22,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:22,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:22,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-27 22:55:22,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 22:55:22,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-27 22:55:22,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:22,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:22,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-10-27 22:55:22,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-27 22:55:22,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,397 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:55:23,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:55:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:55:23,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:55:23,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:23,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:23,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:23,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:55:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:55:23,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-27 22:55:23,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:23,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-27 22:55:23,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:55:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:55:23,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:55:23,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:55:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:55:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:23,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:55:23,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:23,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:55:23,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-10-27 22:55:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:23,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:55:23,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:23,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:23,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:23,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-10-27 22:55:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:23,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:23,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:23,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:23,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:23,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:55:23,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:23,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:23,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:23,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-27 22:55:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:24,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:24,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-27 22:55:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:24,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:24,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:24,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:24,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:24,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:55:24,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:24,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:24,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:24,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:24,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2020-10-27 22:55:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:24,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:24,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:24,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:24,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:24,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:55:24,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:24,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:24,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:55:24,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48255534] [2020-10-27 22:55:24,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:55:24,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:55:24,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116219847] [2020-10-27 22:55:24,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:55:24,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:55:24,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:55:24,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:55:24,190 INFO L87 Difference]: Start difference. First operand 2417 states and 4001 transitions. Second operand 11 states. [2020-10-27 22:55:25,237 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:32,546 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:32,967 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:33,540 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:33,829 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:34,371 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:34,679 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:35,474 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:35,747 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:36,565 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:36,836 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:38,673 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:39,350 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:55:39,673 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:55:40,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:55:40,183 INFO L93 Difference]: Finished difference Result 7198 states and 11688 transitions. [2020-10-27 22:55:40,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:55:40,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 254 [2020-10-27 22:55:40,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:55:40,213 INFO L225 Difference]: With dead ends: 7198 [2020-10-27 22:55:40,213 INFO L226 Difference]: Without dead ends: 5366 [2020-10-27 22:55:40,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:55:40,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5366 states. [2020-10-27 22:55:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5366 to 4113. [2020-10-27 22:55:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4113 states. [2020-10-27 22:55:40,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4113 states to 4113 states and 6649 transitions. [2020-10-27 22:55:40,774 INFO L78 Accepts]: Start accepts. Automaton has 4113 states and 6649 transitions. Word has length 254 [2020-10-27 22:55:40,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:55:40,774 INFO L481 AbstractCegarLoop]: Abstraction has 4113 states and 6649 transitions. [2020-10-27 22:55:40,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:55:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand 4113 states and 6649 transitions. [2020-10-27 22:55:40,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-27 22:55:40,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:55:40,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:55:40,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:55:40,780 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:55:40,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:55:40,781 INFO L82 PathProgramCache]: Analyzing trace with hash 552749287, now seen corresponding path program 1 times [2020-10-27 22:55:40,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:55:40,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749314123] [2020-10-27 22:55:40,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:55:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:40,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:41,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:41,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:41,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:41,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:41,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:42,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:42,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:42,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:45,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:45,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-10-27 22:55:45,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:55:45,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-27 22:55:45,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-27 22:55:45,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 22:55:45,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,002 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:55:47,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:55:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:47,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:55:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-27 22:55:47,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:55:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:55:47,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:55:47,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:47,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:55:47,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:55:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:47,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:55:47,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:47,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:55:47,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:55:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:47,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:55:47,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:47,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:47,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:55:47,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:55:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:47,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:55:47,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:47,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:55:47,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-27 22:55:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:55:47,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-27 22:55:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:47,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:55:47,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:55:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:55:47,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 22:55:47,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2020-10-27 22:55:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:55:47,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:55:47,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:55:47,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:55:47,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:55:47,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 22:55:47,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:55:47,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:55:47,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 22:55:47,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:55:47,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:55:47,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:55:47,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749314123] [2020-10-27 22:55:47,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:55:47,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 22:55:47,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882877470] [2020-10-27 22:55:47,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 22:55:47,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:55:47,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 22:55:47,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 22:55:47,696 INFO L87 Difference]: Start difference. First operand 4113 states and 6649 transitions. Second operand 11 states. [2020-10-27 22:55:48,798 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:55:56,104 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:56,918 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:57,459 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:58,166 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2020-10-27 22:55:58,911 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:55:59,379 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:56:00,705 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:01,234 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:01,926 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:02,467 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:03,816 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:56:04,107 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:56:04,418 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:56:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:56:04,801 INFO L93 Difference]: Finished difference Result 13257 states and 21141 transitions. [2020-10-27 22:56:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:56:04,802 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 258 [2020-10-27 22:56:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:56:04,845 INFO L225 Difference]: With dead ends: 13257 [2020-10-27 22:56:04,845 INFO L226 Difference]: Without dead ends: 9738 [2020-10-27 22:56:04,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2020-10-27 22:56:04,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9738 states. [2020-10-27 22:56:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9738 to 7413. [2020-10-27 22:56:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7413 states. [2020-10-27 22:56:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 11805 transitions. [2020-10-27 22:56:05,566 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 11805 transitions. Word has length 258 [2020-10-27 22:56:05,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:56:05,567 INFO L481 AbstractCegarLoop]: Abstraction has 7413 states and 11805 transitions. [2020-10-27 22:56:05,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-27 22:56:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 11805 transitions. [2020-10-27 22:56:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-27 22:56:05,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:56:05,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:56:05,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:56:05,572 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:56:05,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:56:05,573 INFO L82 PathProgramCache]: Analyzing trace with hash 2051169035, now seen corresponding path program 1 times [2020-10-27 22:56:05,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:56:05,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522370928] [2020-10-27 22:56:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:56:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:05,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:05,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:05,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:06,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:07,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:10,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:10,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-10-27 22:56:10,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-27 22:56:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-27 22:56:10,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:56:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-10-27 22:56:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-27 22:56:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:11,753 WARN L193 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2020-10-27 22:56:11,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:56:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:11,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:56:11,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:11,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:56:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:11,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-27 22:56:12,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 581 [2020-10-27 22:56:12,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:56:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-27 22:56:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-27 22:56:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:56:12,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:56:12,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:12,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:56:12,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 22:56:12,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-27 22:56:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:12,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 22:56:12,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:12,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:12,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:56:12,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-27 22:56:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:12,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:56:12,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:12,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:12,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:56:12,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-27 22:56:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:12,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:56:12,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:12,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:56:12,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:12,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-10-27 22:56:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:12,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:12,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:12,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:12,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:12,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:56:12,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:56:12,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:13,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-10-27 22:56:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:13,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:13,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:13,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 22:56:13,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:13,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:56:13,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:56:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 22:56:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:56:13,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:13,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-27 22:56:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:56:13,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:56:13,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:56:13,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 22:56:13,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:56:13,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:56:13,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:56:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 22:56:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 22:56:13,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:56:13,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:56:13,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:56:13,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522370928] [2020-10-27 22:56:13,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:56:13,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-27 22:56:13,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654258469] [2020-10-27 22:56:13,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 22:56:13,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:56:13,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 22:56:13,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-27 22:56:13,328 INFO L87 Difference]: Start difference. First operand 7413 states and 11805 transitions. Second operand 19 states. [2020-10-27 22:56:15,651 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 396 DAG size of output: 393 [2020-10-27 22:56:23,470 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2020-10-27 22:56:24,503 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 388 [2020-10-27 22:56:25,571 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 390 [2020-10-27 22:56:26,734 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 392 [2020-10-27 22:56:27,695 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:56:28,355 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:29,301 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:56:29,712 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:56:30,797 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:56:31,133 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:56:31,909 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:56:32,344 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-27 22:56:33,216 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 180 [2020-10-27 22:56:33,586 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2020-10-27 22:56:33,903 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:56:34,858 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2020-10-27 22:56:35,422 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 22:56:35,749 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 169