/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:21:33,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:21:33,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:21:33,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:21:33,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:21:33,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:21:33,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:21:33,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:21:33,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:21:33,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:21:33,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:21:33,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:21:33,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:21:33,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:21:33,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:21:33,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:21:33,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:21:33,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:21:33,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:21:33,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:21:33,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:21:33,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:21:33,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:21:33,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:21:33,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:21:33,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:21:33,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:21:33,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:21:33,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:21:33,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:21:33,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:21:33,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:21:33,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:21:33,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:21:33,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:21:33,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:21:33,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:21:33,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:21:33,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:21:33,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:21:33,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:21:33,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 12:21:33,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:21:33,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:21:33,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:21:33,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:21:33,293 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:21:33,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:21:33,294 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:21:33,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:21:33,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:21:33,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:21:33,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:21:33,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:21:33,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:21:33,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:21:33,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:21:33,297 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:21:33,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:21:33,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:21:33,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:21:33,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:21:33,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:21:33,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:21:33,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:21:33,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:21:33,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:21:33,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:21:33,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:21:33,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:21:33,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:21:33,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:21:33,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:21:33,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:21:33,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:21:33,773 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:21:33,774 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:21:33,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-29 12:21:33,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1da65b87c/b47d75cb85c04bfda5d59563e614c554/FLAG129cc49c0 [2020-10-29 12:21:34,608 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:21:34,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-29 12:21:34,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1da65b87c/b47d75cb85c04bfda5d59563e614c554/FLAG129cc49c0 [2020-10-29 12:21:34,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1da65b87c/b47d75cb85c04bfda5d59563e614c554 [2020-10-29 12:21:34,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:21:34,901 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:21:34,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:21:34,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:21:34,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:21:34,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:21:34" (1/1) ... [2020-10-29 12:21:34,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328d2b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:34, skipping insertion in model container [2020-10-29 12:21:34,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:21:34" (1/1) ... [2020-10-29 12:21:34,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:21:35,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:21:35,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:21:35,343 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:21:35,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:21:35,506 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:21:35,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35 WrapperNode [2020-10-29 12:21:35,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:21:35,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:21:35,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:21:35,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:21:35,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (1/1) ... [2020-10-29 12:21:35,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (1/1) ... [2020-10-29 12:21:35,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (1/1) ... [2020-10-29 12:21:35,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (1/1) ... [2020-10-29 12:21:35,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (1/1) ... [2020-10-29 12:21:35,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (1/1) ... [2020-10-29 12:21:35,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (1/1) ... [2020-10-29 12:21:35,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:21:35,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:21:35,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:21:35,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:21:35,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:21:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:21:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:21:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:21:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:21:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:21:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:21:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:21:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:21:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:21:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:21:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:21:35,754 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:21:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:21:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:21:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:21:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:21:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:21:35,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:21:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:21:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:21:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:21:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:21:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:21:35,756 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:21:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:21:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:21:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:21:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:21:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:21:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:21:35,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:21:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:21:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:21:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:21:35,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:21:37,426 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:21:37,427 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:21:37,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:21:37 BoogieIcfgContainer [2020-10-29 12:21:37,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:21:37,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:21:37,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:21:37,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:21:37,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:21:34" (1/3) ... [2020-10-29 12:21:37,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed1f470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:21:37, skipping insertion in model container [2020-10-29 12:21:37,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:21:35" (2/3) ... [2020-10-29 12:21:37,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed1f470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:21:37, skipping insertion in model container [2020-10-29 12:21:37,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:21:37" (3/3) ... [2020-10-29 12:21:37,440 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.2.ufo.BOUNDED-8.pals.c [2020-10-29 12:21:37,453 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:21:37,459 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:21:37,474 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:21:37,506 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:21:37,506 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:21:37,507 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:21:37,507 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:21:37,507 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:21:37,507 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:21:37,507 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:21:37,507 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:21:37,535 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-10-29 12:21:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-29 12:21:37,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:21:37,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:21:37,555 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:21:37,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:21:37,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1744427751, now seen corresponding path program 1 times [2020-10-29 12:21:37,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:21:37,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018735581] [2020-10-29 12:21:37,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:21:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:38,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:38,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:38,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:21:38,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:38,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 713 [2020-10-29 12:21:38,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:38,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-29 12:21:38,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:38,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 12:21:39,344 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:21:39,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:21:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:39,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:39,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:39,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:21:39,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:39,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 12:21:39,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:39,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:39,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:39,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:39,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:39,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:39,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:21:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:39,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:39,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:39,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:21:39,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:39,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 12:21:39,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:39,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:39,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:39,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:39,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:39,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:39,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:21:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:39,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:39,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:39,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:21:39,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:39,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:21:39,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:39,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:39,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:21:39,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:39,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:39,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:21:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:39,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:39,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:39,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:39,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:21:39,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:39,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:39,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:39,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:39,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 12:21:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:39,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:39,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:39,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:39,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:39,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:21:39,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:39,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:39,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:39,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:39,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:21:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:39,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:39,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:39,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:39,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:39,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:21:39,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:39,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:39,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:39,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:39,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:21:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:39,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:39,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:39,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:39,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:39,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:21:39,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:39,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:39,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:39,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:39,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 12:21:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:39,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:39,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:39,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:39,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:39,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:21:39,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:39,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:39,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:39,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:21:39,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018735581] [2020-10-29 12:21:39,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:21:39,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 12:21:39,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753141932] [2020-10-29 12:21:39,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:21:39,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:21:39,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:21:39,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:21:39,914 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 7 states. [2020-10-29 12:21:40,876 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:41,296 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:41,774 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:42,297 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:21:42,810 INFO L93 Difference]: Finished difference Result 500 states and 839 transitions. [2020-10-29 12:21:42,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:21:42,812 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-29 12:21:42,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:21:42,833 INFO L225 Difference]: With dead ends: 500 [2020-10-29 12:21:42,833 INFO L226 Difference]: Without dead ends: 358 [2020-10-29 12:21:42,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:21:42,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-29 12:21:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 330. [2020-10-29 12:21:42,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-10-29 12:21:42,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 569 transitions. [2020-10-29 12:21:42,964 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 569 transitions. Word has length 105 [2020-10-29 12:21:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:21:42,965 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 569 transitions. [2020-10-29 12:21:42,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:21:42,966 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 569 transitions. [2020-10-29 12:21:42,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-29 12:21:42,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:21:42,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:21:42,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:21:42,972 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:21:42,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:21:42,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1496281257, now seen corresponding path program 1 times [2020-10-29 12:21:42,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:21:42,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96864874] [2020-10-29 12:21:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:21:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:43,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:44,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:44,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:21:44,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:44,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1513 [2020-10-29 12:21:44,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:44,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:21:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-29 12:21:44,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:21:44,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:45,211 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:21:45,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:21:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:45,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:45,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:45,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:21:45,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:45,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:21:45,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:45,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:45,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:45,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:45,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:21:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:45,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:45,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:45,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 12:21:45,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:45,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-29 12:21:45,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:45,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:21:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 12:21:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:45,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:21:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:45,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:45,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:21:45,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:45,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:21:45,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:45,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:21:45,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:21:45,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:21:45,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:21:45,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:21:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:45,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:45,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:45,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:45,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:45,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:21:45,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:45,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:45,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:45,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:45,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:45,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 12:21:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:45,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:45,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:45,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:45,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:45,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:21:45,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:45,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:45,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:45,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:21:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:45,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:45,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:45,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:45,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:45,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:21:45,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:45,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:45,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:45,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:45,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:21:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:45,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:45,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:45,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:45,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:45,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:21:45,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:45,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:45,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:45,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:45,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 12:21:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:45,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:45,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:45,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:21:45,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:45,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:21:45,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:45,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:21:45,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:45,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:45,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:21:45,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96864874] [2020-10-29 12:21:45,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:21:45,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:21:45,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286795693] [2020-10-29 12:21:45,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:21:45,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:21:45,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:21:45,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:21:45,878 INFO L87 Difference]: Start difference. First operand 330 states and 569 transitions. Second operand 13 states. [2020-10-29 12:21:48,774 WARN L193 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:21:49,430 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2020-10-29 12:21:50,220 WARN L193 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-29 12:21:50,834 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:21:51,637 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:52,149 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:52,695 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:53,211 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:21:53,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:21:53,973 INFO L93 Difference]: Finished difference Result 500 states and 839 transitions. [2020-10-29 12:21:53,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 12:21:53,974 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 105 [2020-10-29 12:21:53,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:21:53,984 INFO L225 Difference]: With dead ends: 500 [2020-10-29 12:21:53,984 INFO L226 Difference]: Without dead ends: 368 [2020-10-29 12:21:53,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:21:53,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-10-29 12:21:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 330. [2020-10-29 12:21:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-10-29 12:21:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 527 transitions. [2020-10-29 12:21:54,079 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 527 transitions. Word has length 105 [2020-10-29 12:21:54,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:21:54,082 INFO L481 AbstractCegarLoop]: Abstraction has 330 states and 527 transitions. [2020-10-29 12:21:54,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:21:54,082 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 527 transitions. [2020-10-29 12:21:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-29 12:21:54,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:21:54,092 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] [2020-10-29 12:21:54,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:21:54,092 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:21:54,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:21:54,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1781112204, now seen corresponding path program 1 times [2020-10-29 12:21:54,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:21:54,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961787470] [2020-10-29 12:21:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:21:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:54,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:54,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:54,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:55,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:59,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:59,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-29 12:21:59,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:21:59,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 12:21:59,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:59,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:21:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 12:21:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 12:21:59,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:21:59,777 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:21:59,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:21:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:59,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:21:59,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:21:59,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:21:59,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:21:59,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:21:59,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:21:59,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:21:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:21:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:21:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:21:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:21:59,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:21:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:21:59,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:00,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:00,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 12:22:00,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:00,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-29 12:22:00,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:00,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 12:22:00,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:00,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:22:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:00,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:00,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:00,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:22:00,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:00,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:00,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:00,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:00,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:00,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:00,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:22:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:00,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:00,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:00,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:00,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:00,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:22:00,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:00,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:22:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:22:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:22:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:00,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 12:22:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:00,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:00,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:00,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:00,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:00,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:22:00,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:00,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:00,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:00,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:00,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:22:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:00,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:00,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:00,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:00,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:00,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:22:00,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:00,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:00,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:00,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:00,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:00,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:00,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:22:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:00,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:00,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:00,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:00,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:00,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:22:00,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:00,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:00,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 12:22:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:00,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:00,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:00,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:00,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:00,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:00,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:00,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:00,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:00,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:00,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:22:00,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961787470] [2020-10-29 12:22:00,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:22:00,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:22:00,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313997631] [2020-10-29 12:22:00,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:22:00,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:22:00,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:22:00,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:22:00,453 INFO L87 Difference]: Start difference. First operand 330 states and 527 transitions. Second operand 10 states. [2020-10-29 12:22:01,064 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-29 12:22:03,179 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:03,486 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:22:03,844 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:04,007 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:22:04,719 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:04,909 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:22:05,701 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:05,895 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:22:07,313 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 271 [2020-10-29 12:22:07,848 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:22:08,060 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-29 12:22:08,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:22:08,098 INFO L93 Difference]: Finished difference Result 639 states and 1019 transitions. [2020-10-29 12:22:08,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:22:08,099 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2020-10-29 12:22:08,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:22:08,104 INFO L225 Difference]: With dead ends: 639 [2020-10-29 12:22:08,104 INFO L226 Difference]: Without dead ends: 513 [2020-10-29 12:22:08,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:22:08,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2020-10-29 12:22:08,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 444. [2020-10-29 12:22:08,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-29 12:22:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 705 transitions. [2020-10-29 12:22:08,163 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 705 transitions. Word has length 146 [2020-10-29 12:22:08,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:22:08,163 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 705 transitions. [2020-10-29 12:22:08,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:22:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 705 transitions. [2020-10-29 12:22:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-29 12:22:08,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:22:08,167 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] [2020-10-29 12:22:08,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:22:08,167 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:22:08,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:22:08,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1750182502, now seen corresponding path program 1 times [2020-10-29 12:22:08,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:22:08,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48924695] [2020-10-29 12:22:08,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:22:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:08,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:08,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:08,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:08,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:08,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:09,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:13,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:13,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-29 12:22:13,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:22:13,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-29 12:22:13,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:13,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:13,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:22:13,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-29 12:22:13,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:22:13,853 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:22:13,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:22:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:13,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:13,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:13,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:22:13,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:13,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 12:22:13,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:13,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:13,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:13,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:13,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:13,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:13,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:22:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:13,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:14,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:14,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 12:22:14,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:14,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-29 12:22:14,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:14,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:14,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:22:14,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:14,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:22:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:14,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:14,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:14,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:22:14,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:14,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:22:14,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:14,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:14,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:14,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:14,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:14,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:14,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:22:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:14,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:14,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:14,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:22:14,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:14,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:22:14,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:14,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:22:14,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:22:14,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:14,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 12:22:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:14,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:14,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:14,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:14,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:22:14,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:14,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:14,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:14,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:14,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 12:22:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:14,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:14,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:14,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:14,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:14,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:22:14,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:14,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:14,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:14,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:14,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:14,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:14,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 12:22:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:14,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:14,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:14,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:14,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:22:14,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:14,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:14,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:14,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-29 12:22:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:14,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:14,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:14,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:14,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:14,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:22:14,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:14,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:14,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:14,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:14,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:14,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:14,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:22:14,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48924695] [2020-10-29 12:22:14,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:22:14,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:22:14,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361839794] [2020-10-29 12:22:14,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:22:14,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:22:14,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:22:14,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:22:14,717 INFO L87 Difference]: Start difference. First operand 444 states and 705 transitions. Second operand 10 states. [2020-10-29 12:22:15,323 WARN L193 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:22:15,950 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2020-10-29 12:22:16,764 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-29 12:22:18,517 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 281 DAG size of output: 279 [2020-10-29 12:22:22,695 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:22:23,041 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:23,272 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:23,486 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:24,141 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:24,495 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:24,642 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:25,164 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:25,623 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:25,789 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:26,381 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:26,860 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:27,010 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:22:28,437 INFO L93 Difference]: Finished difference Result 1627 states and 2573 transitions. [2020-10-29 12:22:28,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:22:28,440 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-10-29 12:22:28,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:22:28,448 INFO L225 Difference]: With dead ends: 1627 [2020-10-29 12:22:28,448 INFO L226 Difference]: Without dead ends: 1230 [2020-10-29 12:22:28,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:22:28,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2020-10-29 12:22:28,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1109. [2020-10-29 12:22:28,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2020-10-29 12:22:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1744 transitions. [2020-10-29 12:22:28,575 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1744 transitions. Word has length 149 [2020-10-29 12:22:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:22:28,575 INFO L481 AbstractCegarLoop]: Abstraction has 1109 states and 1744 transitions. [2020-10-29 12:22:28,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:22:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1744 transitions. [2020-10-29 12:22:28,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-29 12:22:28,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:22:28,580 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] [2020-10-29 12:22:28,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:22:28,580 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:22:28,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:22:28,581 INFO L82 PathProgramCache]: Analyzing trace with hash -841181186, now seen corresponding path program 1 times [2020-10-29 12:22:28,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:22:28,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182416986] [2020-10-29 12:22:28,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:22:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:28,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:28,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:28,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:29,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:33,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:33,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:33,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-29 12:22:33,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:22:33,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 12:22:33,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:33,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:33,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:33,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:22:33,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 12:22:33,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:34,248 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:22:34,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:22:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:34,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:34,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:34,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:22:34,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:34,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:22:34,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:34,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:34,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:34,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:34,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:34,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:34,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:22:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:34,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:34,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:34,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 12:22:34,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:34,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 12:22:34,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:34,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:34,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:22:34,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:34,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:22:34,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:34,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:34,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:34,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:22:34,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:34,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:34,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:34,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:34,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:34,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:34,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:34,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:34,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:22:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:34,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:34,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:34,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:22:34,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:34,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:22:34,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:34,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:34,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 12:22:34,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:22:34,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:34,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 12:22:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:34,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:34,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:34,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:34,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:34,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:22:34,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:34,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:34,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:34,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:34,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:34,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:34,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 12:22:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:34,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:34,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:34,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:34,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:34,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:22:34,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:34,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:34,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:34,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:34,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 12:22:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:34,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:34,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:34,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:34,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:22:34,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:34,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:34,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:34,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:34,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-29 12:22:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:34,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:34,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:34,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:34,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:34,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:34,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:34,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:34,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:22:34,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:22:34,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182416986] [2020-10-29 12:22:34,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:22:34,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:22:34,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904373049] [2020-10-29 12:22:35,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:22:35,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:22:35,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:22:35,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:22:35,002 INFO L87 Difference]: Start difference. First operand 1109 states and 1744 transitions. Second operand 10 states. [2020-10-29 12:22:35,644 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:22:36,303 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 279 [2020-10-29 12:22:37,007 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-29 12:22:39,026 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 281 DAG size of output: 279 [2020-10-29 12:22:43,815 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:22:44,193 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:44,434 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:44,800 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:45,408 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:45,710 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:45,915 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:46,549 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:46,921 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:47,210 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:47,944 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:22:48,268 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:22:48,449 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:22:50,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:22:50,037 INFO L93 Difference]: Finished difference Result 4206 states and 6621 transitions. [2020-10-29 12:22:50,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:22:50,038 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-10-29 12:22:50,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:22:50,057 INFO L225 Difference]: With dead ends: 4206 [2020-10-29 12:22:50,057 INFO L226 Difference]: Without dead ends: 3176 [2020-10-29 12:22:50,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:22:50,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2020-10-29 12:22:50,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 2900. [2020-10-29 12:22:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2900 states. [2020-10-29 12:22:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 4528 transitions. [2020-10-29 12:22:50,414 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 4528 transitions. Word has length 149 [2020-10-29 12:22:50,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:22:50,415 INFO L481 AbstractCegarLoop]: Abstraction has 2900 states and 4528 transitions. [2020-10-29 12:22:50,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:22:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 4528 transitions. [2020-10-29 12:22:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-29 12:22:50,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:22:50,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:22:50,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:22:50,424 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:22:50,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:22:50,425 INFO L82 PathProgramCache]: Analyzing trace with hash 2002704470, now seen corresponding path program 1 times [2020-10-29 12:22:50,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:22:50,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419205774] [2020-10-29 12:22:50,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:22:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:50,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:50,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:50,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:50,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:50,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:55,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:55,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-29 12:22:55,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:22:55,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 12:22:55,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:55,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:22:55,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 12:22:55,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,239 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:22:56,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:22:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:56,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:56,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:56,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:22:56,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:56,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:22:56,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:56,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:56,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:56,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:22:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:56,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:56,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:56,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 12:22:56,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:56,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 12:22:56,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:56,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:56,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:22:56,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:56,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:22:56,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:22:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:56,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:56,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:56,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:22:56,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:56,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:56,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:22:56,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:22:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:56,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:56,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:56,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:22:56,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:56,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:22:56,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:56,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:56,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:22:56,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 12:22:56,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:22:56,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-29 12:22:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:56,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:56,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:56,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:56,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:56,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:56,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:56,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:56,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:56,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-29 12:22:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:56,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:56,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:56,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:56,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:22:56,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:56,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:56,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:56,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:56,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-29 12:22:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:56,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:56,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:56,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:22:56,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:56,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:56,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 12:22:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:22:56,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:22:56,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:22:56,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:22:56,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:22:56,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:22:56,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:22:56,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:22:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:22:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:22:56,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:22:56,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:22:56,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:22:56,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419205774] [2020-10-29 12:22:56,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:22:56,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:22:56,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207730601] [2020-10-29 12:22:56,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:22:56,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:22:56,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:22:56,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:22:56,842 INFO L87 Difference]: Start difference. First operand 2900 states and 4528 transitions. Second operand 10 states. [2020-10-29 12:22:57,515 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:22:58,132 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2020-10-29 12:22:59,093 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2020-10-29 12:22:59,730 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:23:03,735 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:23:04,113 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:04,334 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:05,080 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:05,278 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:05,903 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:06,215 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:07,001 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:07,317 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:08,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:23:08,561 INFO L93 Difference]: Finished difference Result 9046 states and 14147 transitions. [2020-10-29 12:23:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:23:08,565 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2020-10-29 12:23:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:23:08,600 INFO L225 Difference]: With dead ends: 9046 [2020-10-29 12:23:08,600 INFO L226 Difference]: Without dead ends: 6274 [2020-10-29 12:23:08,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:23:08,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2020-10-29 12:23:09,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 5839. [2020-10-29 12:23:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5839 states. [2020-10-29 12:23:09,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 8990 transitions. [2020-10-29 12:23:09,335 INFO L78 Accepts]: Start accepts. Automaton has 5839 states and 8990 transitions. Word has length 150 [2020-10-29 12:23:09,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:23:09,335 INFO L481 AbstractCegarLoop]: Abstraction has 5839 states and 8990 transitions. [2020-10-29 12:23:09,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:23:09,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5839 states and 8990 transitions. [2020-10-29 12:23:09,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-29 12:23:09,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:23:09,353 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] [2020-10-29 12:23:09,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:23:09,353 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:23:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:23:09,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1828665188, now seen corresponding path program 1 times [2020-10-29 12:23:09,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:23:09,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255944819] [2020-10-29 12:23:09,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:23:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:09,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:09,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:09,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:09,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:09,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:10,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:14,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:14,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-29 12:23:14,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:23:14,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 12:23:14,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:14,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:14,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:23:14,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:23:14,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 12:23:14,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,014 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:23:15,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:23:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:15,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:15,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:15,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:23:15,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:15,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:23:15,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:15,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:15,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:15,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:15,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:15,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:23:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:15,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:15,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:15,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 12:23:15,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 12:23:15,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:15,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:23:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:15,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:23:15,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:23:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:15,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:15,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:23:15,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:15,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:23:15,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:15,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:15,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:23:15,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:23:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:15,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:15,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:15,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:23:15,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:15,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:23:15,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:15,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:15,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:15,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:23:15,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:23:15,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:23:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:15,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:15,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:15,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:15,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:15,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 12:23:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:15,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:15,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:15,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:15,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:23:15,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:15,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:15,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-29 12:23:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:15,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:15,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:15,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:15,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:15,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:23:15,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:15,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:15,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:15,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 12:23:15,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:15,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:15,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:15,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:15,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:15,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:23:15,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:15,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:15,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:15,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:23:15,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255944819] [2020-10-29 12:23:15,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:23:15,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:23:15,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758390514] [2020-10-29 12:23:15,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:23:15,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:23:15,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:23:15,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:23:15,717 INFO L87 Difference]: Start difference. First operand 5839 states and 8990 transitions. Second operand 10 states. [2020-10-29 12:23:16,388 WARN L193 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:23:17,073 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 280 [2020-10-29 12:23:18,020 WARN L193 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2020-10-29 12:23:19,281 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 282 DAG size of output: 276 [2020-10-29 12:23:24,938 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:23:25,331 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:25,581 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:25,931 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:26,601 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:26,982 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:27,132 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:27,695 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:28,235 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:28,409 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:28,995 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:29,463 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:29,607 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:31,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:23:31,527 INFO L93 Difference]: Finished difference Result 21552 states and 33031 transitions. [2020-10-29 12:23:31,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:23:31,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-29 12:23:31,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:23:31,608 INFO L225 Difference]: With dead ends: 21552 [2020-10-29 12:23:31,608 INFO L226 Difference]: Without dead ends: 16007 [2020-10-29 12:23:31,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:23:31,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16007 states. [2020-10-29 12:23:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16007 to 15213. [2020-10-29 12:23:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15213 states. [2020-10-29 12:23:33,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15213 states to 15213 states and 23059 transitions. [2020-10-29 12:23:33,470 INFO L78 Accepts]: Start accepts. Automaton has 15213 states and 23059 transitions. Word has length 151 [2020-10-29 12:23:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:23:33,470 INFO L481 AbstractCegarLoop]: Abstraction has 15213 states and 23059 transitions. [2020-10-29 12:23:33,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:23:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 15213 states and 23059 transitions. [2020-10-29 12:23:33,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-29 12:23:33,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:23:33,510 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] [2020-10-29 12:23:33,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:23:33,510 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:23:33,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:23:33,511 INFO L82 PathProgramCache]: Analyzing trace with hash 630235831, now seen corresponding path program 1 times [2020-10-29 12:23:33,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:23:33,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666342523] [2020-10-29 12:23:33,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:23:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:33,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:33,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:33,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:33,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:34,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:38,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:38,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-29 12:23:38,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:23:38,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 12:23:38,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:38,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:23:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 12:23:38,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 12:23:38,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,186 WARN L193 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:23:39,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:23:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:39,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:39,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:39,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:23:39,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:39,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:23:39,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:39,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:39,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:39,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:23:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:39,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:39,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:39,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 12:23:39,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:39,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-29 12:23:39,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:39,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:23:39,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:39,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:23:39,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:23:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:39,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:39,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:23:39,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:23:39,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:39,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:23:39,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:23:39,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:23:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:39,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:39,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:39,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:23:39,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:39,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:23:39,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:39,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:39,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:23:39,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:23:39,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:23:39,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 12:23:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:39,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:39,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:39,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:39,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:23:39,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:39,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:39,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:39,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 12:23:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:39,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:39,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:39,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:39,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:39,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:23:39,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:39,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:39,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:39,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:39,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-29 12:23:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:39,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:39,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:39,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:39,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:39,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:23:39,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:39,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:39,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:39,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 12:23:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:23:39,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:23:39,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:23:39,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:23:39,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:23:39,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:23:39,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:23:39,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:23:39,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:23:39,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:23:39,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:23:39,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:23:39,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:23:39,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666342523] [2020-10-29 12:23:39,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:23:39,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:23:39,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509096680] [2020-10-29 12:23:39,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:23:39,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:23:39,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:23:39,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:23:39,814 INFO L87 Difference]: Start difference. First operand 15213 states and 23059 transitions. Second operand 10 states. [2020-10-29 12:23:40,486 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:23:41,222 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2020-10-29 12:23:41,903 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2020-10-29 12:23:44,251 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 280 DAG size of output: 276 [2020-10-29 12:23:50,235 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-29 12:23:50,638 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:50,905 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:51,268 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:51,984 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:52,228 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:52,446 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:53,119 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:53,518 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:53,915 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:54,708 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:23:55,102 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:23:55,354 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:23:57,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:23:57,702 INFO L93 Difference]: Finished difference Result 53466 states and 80465 transitions. [2020-10-29 12:23:57,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:23:57,704 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 151 [2020-10-29 12:23:57,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:23:57,832 INFO L225 Difference]: With dead ends: 53466 [2020-10-29 12:23:57,832 INFO L226 Difference]: Without dead ends: 40361 [2020-10-29 12:23:57,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2020-10-29 12:23:57,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40361 states. [2020-10-29 12:24:01,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40361 to 39215. [2020-10-29 12:24:01,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39215 states. [2020-10-29 12:24:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39215 states to 39215 states and 58526 transitions. [2020-10-29 12:24:02,101 INFO L78 Accepts]: Start accepts. Automaton has 39215 states and 58526 transitions. Word has length 151 [2020-10-29 12:24:02,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:24:02,102 INFO L481 AbstractCegarLoop]: Abstraction has 39215 states and 58526 transitions. [2020-10-29 12:24:02,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:24:02,102 INFO L276 IsEmpty]: Start isEmpty. Operand 39215 states and 58526 transitions. [2020-10-29 12:24:02,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 12:24:02,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:24:02,219 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] [2020-10-29 12:24:02,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:24:02,220 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:24:02,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:24:02,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1712011524, now seen corresponding path program 1 times [2020-10-29 12:24:02,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:24:02,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [932744073] [2020-10-29 12:24:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:24:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:02,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:02,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:02,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:02,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:03,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:03,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:06,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:07,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:07,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:07,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 12:24:07,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 12:24:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 12:24:07,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:07,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:24:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:24:07,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 12:24:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:07,870 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:24:07,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:24:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:07,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:07,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:07,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:24:07,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:07,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:24:07,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:07,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:07,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:24:07,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:24:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:07,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:08,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:08,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 12:24:08,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:08,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 12:24:08,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:08,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:08,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:24:08,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:08,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 12:24:08,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:08,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:24:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:08,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:08,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:08,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:24:08,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:08,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:24:08,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:08,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:08,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:08,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:08,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:24:08,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:08,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:24:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:08,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:08,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:08,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:24:08,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:08,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 12:24:08,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:08,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:24:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:24:08,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:24:08,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:08,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:24:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:08,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:08,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:08,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:08,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:08,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:24:08,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:08,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:08,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:08,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:08,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:08,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:24:08,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:08,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:08,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:08,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:08,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:24:08,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:08,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:08,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:08,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:08,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:08,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 12:24:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:08,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:08,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:08,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:08,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:24:08,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:08,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:08,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:08,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:08,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-29 12:24:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:08,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:08,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:08,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:08,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:08,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:24:08,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:08,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:08,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:08,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:08,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:08,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:08,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:24:08,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [932744073] [2020-10-29 12:24:08,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:24:08,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:24:08,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545025363] [2020-10-29 12:24:08,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:24:08,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:24:08,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:24:08,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:24:08,487 INFO L87 Difference]: Start difference. First operand 39215 states and 58526 transitions. Second operand 15 states. [2020-10-29 12:24:09,990 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 275 DAG size of output: 274 [2020-10-29 12:24:10,664 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:24:15,469 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-29 12:24:17,375 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 277 DAG size of output: 276 [2020-10-29 12:24:17,736 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 125 [2020-10-29 12:24:18,127 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 121 [2020-10-29 12:24:18,492 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-29 12:24:18,874 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 125 [2020-10-29 12:24:19,953 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-29 12:24:20,713 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-29 12:24:21,662 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-29 12:24:23,240 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 123 [2020-10-29 12:24:23,689 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 118 [2020-10-29 12:24:24,278 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-29 12:24:25,089 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-29 12:24:25,715 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-29 12:24:26,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:24:26,205 INFO L93 Difference]: Finished difference Result 56895 states and 86104 transitions. [2020-10-29 12:24:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:24:26,207 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 152 [2020-10-29 12:24:26,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:24:26,374 INFO L225 Difference]: With dead ends: 56895 [2020-10-29 12:24:26,374 INFO L226 Difference]: Without dead ends: 52868 [2020-10-29 12:24:26,411 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=271, Invalid=785, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 12:24:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52868 states. [2020-10-29 12:24:30,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52868 to 40819. [2020-10-29 12:24:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40819 states. [2020-10-29 12:24:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40819 states to 40819 states and 60856 transitions. [2020-10-29 12:24:30,388 INFO L78 Accepts]: Start accepts. Automaton has 40819 states and 60856 transitions. Word has length 152 [2020-10-29 12:24:30,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:24:30,389 INFO L481 AbstractCegarLoop]: Abstraction has 40819 states and 60856 transitions. [2020-10-29 12:24:30,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:24:30,389 INFO L276 IsEmpty]: Start isEmpty. Operand 40819 states and 60856 transitions. [2020-10-29 12:24:30,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 12:24:30,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:24:30,474 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] [2020-10-29 12:24:30,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:24:30,474 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:24:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:24:30,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1553596474, now seen corresponding path program 1 times [2020-10-29 12:24:30,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:24:30,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594328029] [2020-10-29 12:24:30,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:24:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:30,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:30,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:30,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:30,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:31,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:31,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:35,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:35,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 12:24:35,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:24:35,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 12:24:35,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:35,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 12:24:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:24:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 12:24:35,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,136 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2020-10-29 12:24:36,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:24:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:36,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:24:36,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:36,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 12:24:36,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:24:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:24:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:36,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 12:24:36,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:24:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:24:36,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:36,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:24:36,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:24:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:24:36,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:24:36,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:24:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:36,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:24:36,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:36,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 12:24:36,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:24:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:24:36,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 12:24:36,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-29 12:24:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:36,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:36,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:36,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:24:36,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:36,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:36,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-29 12:24:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:36,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:36,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-29 12:24:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:36,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:36,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:24:36,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:36,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:36,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-29 12:24:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:36,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:36,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:24:36,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:24:36,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:24:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:24:36,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:24:36,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:24:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:24:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:24:36,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:24:36,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:24:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:24:36,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594328029] [2020-10-29 12:24:36,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:24:36,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:24:36,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427137966] [2020-10-29 12:24:36,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:24:36,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:24:36,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:24:36,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:24:36,835 INFO L87 Difference]: Start difference. First operand 40819 states and 60856 transitions. Second operand 15 states. [2020-10-29 12:24:38,099 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 275 DAG size of output: 274 [2020-10-29 12:24:38,720 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2020-10-29 12:24:43,538 WARN L193 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2020-10-29 12:24:45,557 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 277 DAG size of output: 276 [2020-10-29 12:24:45,945 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 125 [2020-10-29 12:24:46,504 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 126 [2020-10-29 12:24:46,952 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 128 [2020-10-29 12:24:47,676 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-29 12:24:48,415 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-29 12:24:49,216 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-10-29 12:24:51,069 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 123 [2020-10-29 12:24:51,800 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-29 12:24:52,478 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-29 12:24:53,146 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2020-10-29 12:24:53,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:24:53,586 INFO L93 Difference]: Finished difference Result 57202 states and 86461 transitions. [2020-10-29 12:24:53,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:24:53,587 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 152 [2020-10-29 12:24:53,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:24:53,751 INFO L225 Difference]: With dead ends: 57202 [2020-10-29 12:24:53,752 INFO L226 Difference]: Without dead ends: 52855 [2020-10-29 12:24:53,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=240, Invalid=690, Unknown=0, NotChecked=0, Total=930 [2020-10-29 12:24:53,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52855 states. [2020-10-29 12:24:57,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52855 to 40949. [2020-10-29 12:24:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40949 states. [2020-10-29 12:24:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40949 states to 40949 states and 60940 transitions. [2020-10-29 12:24:57,807 INFO L78 Accepts]: Start accepts. Automaton has 40949 states and 60940 transitions. Word has length 152 [2020-10-29 12:24:57,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:24:57,808 INFO L481 AbstractCegarLoop]: Abstraction has 40949 states and 60940 transitions. [2020-10-29 12:24:57,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:24:57,808 INFO L276 IsEmpty]: Start isEmpty. Operand 40949 states and 60940 transitions. [2020-10-29 12:24:57,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 12:24:57,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:24:57,868 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] [2020-10-29 12:24:57,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:24:57,868 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:24:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:24:57,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1159229688, now seen corresponding path program 1 times [2020-10-29 12:24:57,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:24:57,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312172554] [2020-10-29 12:24:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:24:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:24:57,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:57,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:58,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:24:58,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking...