/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_lcr.4.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:28:53,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:28:53,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:28:53,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:28:53,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:28:53,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:28:53,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:28:53,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:28:53,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:28:53,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:28:53,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:28:53,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:28:53,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:28:53,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:28:53,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:28:53,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:28:53,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:28:53,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:28:53,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:28:53,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:28:53,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:28:53,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:28:53,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:28:53,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:28:53,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:28:53,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:28:53,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:28:53,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:28:53,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:28:53,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:28:53,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:28:53,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:28:53,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:28:53,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:28:53,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:28:53,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:28:53,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:28:53,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:28:53,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:28:53,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:28:53,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:28:53,287 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 12:28:53,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:28:53,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:28:53,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:28:53,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:28:53,360 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:28:53,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:28:53,360 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:28:53,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:28:53,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:28:53,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:28:53,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:28:53,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:28:53,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:28:53,362 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:28:53,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:28:53,363 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:28:53,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:28:53,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:28:53,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:28:53,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:28:53,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:28:53,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:28:53,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:28:53,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:28:53,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:28:53,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:28:53,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:28:53,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:28:53,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:28:53,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:28:53,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:28:53,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:28:53,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:28:53,855 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:28:53,856 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:28:53,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-29 12:28:53,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54bdefd90/e75c7f48998d43babb4fe881a2987745/FLAG5ff30743c [2020-10-29 12:28:54,730 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:28:54,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-29 12:28:54,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54bdefd90/e75c7f48998d43babb4fe881a2987745/FLAG5ff30743c [2020-10-29 12:28:54,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54bdefd90/e75c7f48998d43babb4fe881a2987745 [2020-10-29 12:28:54,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:28:54,777 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:28:54,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:28:54,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:28:54,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:28:54,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:28:54" (1/1) ... [2020-10-29 12:28:54,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542aec47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:54, skipping insertion in model container [2020-10-29 12:28:54,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:28:54" (1/1) ... [2020-10-29 12:28:54,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:28:54,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:28:55,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:28:55,094 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:28:55,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:28:55,216 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:28:55,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55 WrapperNode [2020-10-29 12:28:55,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:28:55,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:28:55,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:28:55,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:28:55,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (1/1) ... [2020-10-29 12:28:55,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (1/1) ... [2020-10-29 12:28:55,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (1/1) ... [2020-10-29 12:28:55,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (1/1) ... [2020-10-29 12:28:55,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (1/1) ... [2020-10-29 12:28:55,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (1/1) ... [2020-10-29 12:28:55,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (1/1) ... [2020-10-29 12:28:55,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:28:55,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:28:55,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:28:55,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:28:55,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (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 12:28:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:28:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:28:55,423 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:28:55,424 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:28:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:28:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:28:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:28:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:28:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:28:55,425 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:28:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:28:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:28:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:28:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:28:55,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:28:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:28:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:28:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:28:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:28:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:28:55,429 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:28:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:28:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:28:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:28:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:28:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:28:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:28:55,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:28:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:28:55,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:28:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:28:55,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:28:55,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:28:56,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:28:56,274 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:28:56,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:28:56 BoogieIcfgContainer [2020-10-29 12:28:56,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:28:56,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:28:56,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:28:56,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:28:56,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:28:54" (1/3) ... [2020-10-29 12:28:56,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1798f082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:28:56, skipping insertion in model container [2020-10-29 12:28:56,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:28:55" (2/3) ... [2020-10-29 12:28:56,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1798f082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:28:56, skipping insertion in model container [2020-10-29 12:28:56,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:28:56" (3/3) ... [2020-10-29 12:28:56,293 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-29 12:28:56,307 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:28:56,314 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:28:56,330 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:28:56,374 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:28:56,374 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:28:56,374 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:28:56,374 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:28:56,374 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:28:56,375 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:28:56,375 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:28:56,375 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:28:56,409 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-10-29 12:28:56,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 12:28:56,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:56,425 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] [2020-10-29 12:28:56,426 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:56,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:56,436 INFO L82 PathProgramCache]: Analyzing trace with hash 328508636, now seen corresponding path program 1 times [2020-10-29 12:28:56,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:56,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19848530] [2020-10-29 12:28:56,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:56,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:57,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:57,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 12:28:57,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:57,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 371 [2020-10-29 12:28:57,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:57,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:57,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 12:28:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:57,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:28:57,362 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:28:57,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:57,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:57,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:57,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:57,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:57,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:28:57,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:57,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:57,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:57,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:57,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:57,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:57,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:57,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:57,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:57,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:28:57,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:57,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:28:57,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:57,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:57,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:57,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:57,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:57,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 12:28:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:57,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:57,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:57,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:57,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:57,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:28:57,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:57,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:57,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:57,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:28:57,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 12:28:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:57,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:57,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:57,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:57,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:57,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:28:57,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:57,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:57,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:57,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:57,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:57,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 12:28:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:57,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:57,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:57,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:57,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:57,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:28:57,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:57,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 12:28:57,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:57,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:57,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:57,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:57,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:57,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:28:57,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:57,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:57,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:57,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:57,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:57,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:57,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:28:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:57,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:57,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:57,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:28:57,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:57,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:28:57,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:57,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:57,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:28:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:57,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:57,697 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 12:28:57,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19848530] [2020-10-29 12:28:57,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:28:57,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 12:28:57,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612054636] [2020-10-29 12:28:57,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:28:57,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:57,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:28:57,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:28:57,724 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 7 states. [2020-10-29 12:28:58,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:58,566 INFO L93 Difference]: Finished difference Result 183 states and 263 transitions. [2020-10-29 12:28:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:28:58,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2020-10-29 12:28:58,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:58,580 INFO L225 Difference]: With dead ends: 183 [2020-10-29 12:28:58,580 INFO L226 Difference]: Without dead ends: 103 [2020-10-29 12:28:58,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:28:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-29 12:28:58,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-10-29 12:28:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-29 12:28:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 151 transitions. [2020-10-29 12:28:58,643 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 151 transitions. Word has length 57 [2020-10-29 12:28:58,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:28:58,644 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 151 transitions. [2020-10-29 12:28:58,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:28:58,644 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 151 transitions. [2020-10-29 12:28:58,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 12:28:58,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:58,647 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] [2020-10-29 12:28:58,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:28:58,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:58,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:58,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1720879206, now seen corresponding path program 1 times [2020-10-29 12:28:58,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:58,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616207231] [2020-10-29 12:28:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:58,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:59,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:59,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 12:28:59,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:59,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 552 [2020-10-29 12:28:59,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:59,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:28:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:28:59,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:59,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:59,463 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:28:59,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:59,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:59,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:59,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:59,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:59,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 12:28:59,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:59,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:59,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:59,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:59,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:59,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:59,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:59,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:28:59,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:59,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:28:59,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:59,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:59,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:59,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 12:28:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:59,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:59,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:59,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:59,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:28:59,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:59,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:59,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:59,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:59,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:59,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 12:28:59,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 12:28:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:59,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:59,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:59,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:59,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:28:59,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:59,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:59,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:59,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:59,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 12:28:59,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 12:28:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:59,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:59,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:59,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:28:59,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:59,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:59,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:59,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:59,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 12:28:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:59,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:59,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:59,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:59,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:59,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:28:59,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:59,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:59,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:59,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:59,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:28:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:59,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:59,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:59,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:28:59,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:28:59,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:59,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:28:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:59,810 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 12:28:59,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616207231] [2020-10-29 12:28:59,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:28:59,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:28:59,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204314872] [2020-10-29 12:28:59,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:28:59,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:59,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:28:59,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:28:59,814 INFO L87 Difference]: Start difference. First operand 103 states and 151 transitions. Second operand 11 states. [2020-10-29 12:29:00,020 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-29 12:29:00,200 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-29 12:29:01,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:01,476 INFO L93 Difference]: Finished difference Result 185 states and 264 transitions. [2020-10-29 12:29:01,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 12:29:01,483 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 57 [2020-10-29 12:29:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:01,487 INFO L225 Difference]: With dead ends: 185 [2020-10-29 12:29:01,487 INFO L226 Difference]: Without dead ends: 113 [2020-10-29 12:29:01,490 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-29 12:29:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-29 12:29:01,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 103. [2020-10-29 12:29:01,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-29 12:29:01,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 128 transitions. [2020-10-29 12:29:01,531 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 128 transitions. Word has length 57 [2020-10-29 12:29:01,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:01,531 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 128 transitions. [2020-10-29 12:29:01,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:29:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 128 transitions. [2020-10-29 12:29:01,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-29 12:29:01,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:01,536 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] [2020-10-29 12:29:01,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:29:01,537 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:01,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:01,537 INFO L82 PathProgramCache]: Analyzing trace with hash 2013126421, now seen corresponding path program 1 times [2020-10-29 12:29:01,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:01,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88774567] [2020-10-29 12:29:01,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:01,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:01,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:01,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:01,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:03,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 12:29:06,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:29:06,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 12:29:06,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:29:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:29:06,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 12:29:06,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:29:06,758 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:29:06,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:06,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:29:06,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:06,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:29:06,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:29:06,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:29:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 12:29:06,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:29:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:06,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:29:06,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:06,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:06,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:29:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:06,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:29:06,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:06,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:06,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:07,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:29:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:07,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:07,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:07,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:07,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:07,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:29:07,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:07,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:07,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:07,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:29:07,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:29:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:07,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:07,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:07,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:07,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:07,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:29:07,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:07,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:07,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:07,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:07,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:07,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:29:07,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:29:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:07,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:07,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:07,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:07,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:07,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:29:07,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:07,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:29:07,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:29:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:07,178 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 12:29:07,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88774567] [2020-10-29 12:29:07,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:29:07,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 12:29:07,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710432565] [2020-10-29 12:29:07,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:29:07,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:07,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:29:07,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:29:07,181 INFO L87 Difference]: Start difference. First operand 103 states and 128 transitions. Second operand 16 states. [2020-10-29 12:29:07,370 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-29 12:29:07,527 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:29:07,672 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-29 12:29:07,848 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:29:09,912 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-29 12:29:10,075 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-29 12:29:10,244 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-29 12:29:10,408 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-29 12:29:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:14,261 INFO L93 Difference]: Finished difference Result 720 states and 986 transitions. [2020-10-29 12:29:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-10-29 12:29:14,261 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 79 [2020-10-29 12:29:14,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:14,274 INFO L225 Difference]: With dead ends: 720 [2020-10-29 12:29:14,274 INFO L226 Difference]: Without dead ends: 654 [2020-10-29 12:29:14,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1858 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1166, Invalid=4534, Unknown=0, NotChecked=0, Total=5700 [2020-10-29 12:29:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2020-10-29 12:29:14,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 630. [2020-10-29 12:29:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2020-10-29 12:29:14,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 868 transitions. [2020-10-29 12:29:14,395 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 868 transitions. Word has length 79 [2020-10-29 12:29:14,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:14,396 INFO L481 AbstractCegarLoop]: Abstraction has 630 states and 868 transitions. [2020-10-29 12:29:14,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 12:29:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 868 transitions. [2020-10-29 12:29:14,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-29 12:29:14,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:14,400 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] [2020-10-29 12:29:14,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:29:14,400 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:14,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:14,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1387223931, now seen corresponding path program 1 times [2020-10-29 12:29:14,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:14,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828412589] [2020-10-29 12:29:14,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:14,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:14,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:14,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:14,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:15,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:19,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:29:19,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:29:19,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 12:29:19,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:19,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 12:29:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 12:29:19,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:29:19,609 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:29:19,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:19,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:19,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:19,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:19,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:29:19,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:19,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:19,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:19,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:19,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:19,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:19,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:19,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:19,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:29:19,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:19,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:29:19,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:19,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:19,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:19,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:19,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:19,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:19,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:29:19,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:19,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:19,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:19,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:29:19,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:19,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:19,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:19,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:19,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:19,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:19,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:29:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:19,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:19,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:19,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:19,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:29:19,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:19,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:19,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:19,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:19,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:29:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:19,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:19,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:19,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:19,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:19,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:19,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:19,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:19,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:29:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:19,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:19,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:19,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:19,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:29:19,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:19,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:19,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:19,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:19,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:29:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:19,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:19,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:19,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:29:19,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:29:19,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:29:19,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:19,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:29:19,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:29:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:19,884 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 12:29:19,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828412589] [2020-10-29 12:29:19,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:29:19,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:29:19,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267320833] [2020-10-29 12:29:19,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:29:19,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:19,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:29:19,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:29:19,889 INFO L87 Difference]: Start difference. First operand 630 states and 868 transitions. Second operand 11 states. [2020-10-29 12:29:20,084 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:29:20,826 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:29:21,513 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-29 12:29:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:22,943 INFO L93 Difference]: Finished difference Result 2772 states and 3912 transitions. [2020-10-29 12:29:22,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 12:29:22,944 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 81 [2020-10-29 12:29:22,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:22,967 INFO L225 Difference]: With dead ends: 2772 [2020-10-29 12:29:22,968 INFO L226 Difference]: Without dead ends: 2179 [2020-10-29 12:29:22,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=246, Invalid=810, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 12:29:22,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2020-10-29 12:29:23,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 2170. [2020-10-29 12:29:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2020-10-29 12:29:23,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2981 transitions. [2020-10-29 12:29:23,228 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2981 transitions. Word has length 81 [2020-10-29 12:29:23,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:23,231 INFO L481 AbstractCegarLoop]: Abstraction has 2170 states and 2981 transitions. [2020-10-29 12:29:23,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:29:23,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2981 transitions. [2020-10-29 12:29:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-29 12:29:23,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:23,238 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] [2020-10-29 12:29:23,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:29:23,238 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:23,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1661741703, now seen corresponding path program 1 times [2020-10-29 12:29:23,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:23,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351402118] [2020-10-29 12:29:23,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:23,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:28,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:28,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:29:28,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:29:28,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 12:29:28,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:28,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:28,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:29:28,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:29:28,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 12:29:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:28,465 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:29:28,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:28,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:28,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:28,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:28,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:28,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:29:28,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:28,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:28,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:28,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:28,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:28,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:28,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:28,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:28,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:28,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:29:28,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:28,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 12:29:28,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:28,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:29:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:28,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 12:29:28,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:28,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:29:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:28,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:28,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:28,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:28,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:28,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:29:28,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:28,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:28,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:28,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:28,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:28,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:29:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:28,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:28,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:28,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:28,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:28,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:29:28,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:28,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:28,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:28,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:28,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:29:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:28,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:28,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:28,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:28,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:28,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:29:28,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:28,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:28,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:28,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:28,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:28,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:29:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:28,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:28,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:28,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:28,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:28,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:29:28,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:28,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:28,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:28,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:29:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:28,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:28,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:28,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:29:28,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:29:28,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:28,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:29:28,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:29:28,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:28,930 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 12:29:28,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351402118] [2020-10-29 12:29:28,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:29:28,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-29 12:29:28,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598187610] [2020-10-29 12:29:28,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:29:28,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:28,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:29:28,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:29:28,933 INFO L87 Difference]: Start difference. First operand 2170 states and 2981 transitions. Second operand 16 states. [2020-10-29 12:29:29,183 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-29 12:29:29,355 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-29 12:29:29,519 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-29 12:29:29,680 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-29 12:29:30,148 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:29:31,254 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-29 12:29:32,179 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-29 12:29:32,715 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-29 12:29:32,876 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:29:35,649 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-29 12:29:37,867 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-29 12:29:39,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:39,319 INFO L93 Difference]: Finished difference Result 5795 states and 8138 transitions. [2020-10-29 12:29:39,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-10-29 12:29:39,320 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 81 [2020-10-29 12:29:39,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:39,345 INFO L225 Difference]: With dead ends: 5795 [2020-10-29 12:29:39,345 INFO L226 Difference]: Without dead ends: 3662 [2020-10-29 12:29:39,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2835 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1485, Invalid=6705, Unknown=0, NotChecked=0, Total=8190 [2020-10-29 12:29:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3662 states. [2020-10-29 12:29:39,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3662 to 3452. [2020-10-29 12:29:39,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3452 states. [2020-10-29 12:29:39,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4819 transitions. [2020-10-29 12:29:39,691 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4819 transitions. Word has length 81 [2020-10-29 12:29:39,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:39,692 INFO L481 AbstractCegarLoop]: Abstraction has 3452 states and 4819 transitions. [2020-10-29 12:29:39,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 12:29:39,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4819 transitions. [2020-10-29 12:29:39,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-29 12:29:39,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:39,694 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] [2020-10-29 12:29:39,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:29:39,695 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:39,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:39,695 INFO L82 PathProgramCache]: Analyzing trace with hash 105145845, now seen corresponding path program 1 times [2020-10-29 12:29:39,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:39,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592091111] [2020-10-29 12:29:39,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:39,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:39,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:39,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:39,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:40,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:40,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:44,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:44,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:29:44,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:29:44,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 12:29:44,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:44,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:29:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:29:44,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 12:29:44,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:44,964 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:29:44,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:44,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:44,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:44,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:44,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:29:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:44,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:44,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:29:44,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:45,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:45,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:45,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:45,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:29:45,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:45,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:29:45,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:45,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:45,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:29:45,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 12:29:45,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 12:29:45,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:29:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:45,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:45,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:45,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:45,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:29:45,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:45,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:45,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:29:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:45,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:45,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:45,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:45,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:45,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:45,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:45,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:45,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:45,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:45,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:29:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:45,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:45,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:45,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:45,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:45,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:29:45,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:45,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:45,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:45,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:45,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:29:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:45,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:45,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:45,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:45,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:29:45,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:45,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:29:45,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:29:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:45,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:29:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:45,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:45,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:45,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:45,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:45,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:45,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:45,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:29:45,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:45,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:45,289 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 12:29:45,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592091111] [2020-10-29 12:29:45,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:29:45,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:29:45,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947364305] [2020-10-29 12:29:45,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:29:45,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:45,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:29:45,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:29:45,296 INFO L87 Difference]: Start difference. First operand 3452 states and 4819 transitions. Second operand 14 states. [2020-10-29 12:29:45,622 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 132 [2020-10-29 12:29:45,819 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:29:46,345 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-29 12:29:48,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:48,452 INFO L93 Difference]: Finished difference Result 6892 states and 9571 transitions. [2020-10-29 12:29:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:29:48,453 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-10-29 12:29:48,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:48,477 INFO L225 Difference]: With dead ends: 6892 [2020-10-29 12:29:48,477 INFO L226 Difference]: Without dead ends: 3717 [2020-10-29 12:29:48,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2020-10-29 12:29:48,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2020-10-29 12:29:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3545. [2020-10-29 12:29:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2020-10-29 12:29:48,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 4941 transitions. [2020-10-29 12:29:48,850 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 4941 transitions. Word has length 81 [2020-10-29 12:29:48,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:48,850 INFO L481 AbstractCegarLoop]: Abstraction has 3545 states and 4941 transitions. [2020-10-29 12:29:48,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:29:48,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 4941 transitions. [2020-10-29 12:29:48,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-29 12:29:48,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:48,852 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] [2020-10-29 12:29:48,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:29:48,852 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:48,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:48,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1755770743, now seen corresponding path program 1 times [2020-10-29 12:29:48,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:48,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972496802] [2020-10-29 12:29:48,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:48,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:48,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:48,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:50,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:50,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:53,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:53,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:29:53,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:29:53,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 12:29:53,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:53,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:53,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:29:53,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:29:53,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 12:29:53,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:54,051 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:29:54,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:54,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:54,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:54,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:54,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:54,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:29:54,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:54,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:54,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:54,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:54,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:29:54,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:54,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:54,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:54,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:54,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:29:54,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:54,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:29:54,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:54,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:29:54,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:54,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 12:29:54,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:54,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:29:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:54,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:54,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:54,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:54,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:54,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:54,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:54,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:54,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:54,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:54,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:29:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:54,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:54,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:54,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:54,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:54,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:29:54,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:54,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:54,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:54,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:54,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:29:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:54,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:54,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:54,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:54,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:54,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:29:54,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:54,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:29:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:54,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:29:54,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:54,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:29:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:54,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:54,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:54,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:54,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:54,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:29:54,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:54,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:54,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:54,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:54,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:29:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:54,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:54,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:54,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:54,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:54,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:54,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:54,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:29:54,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:54,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:54,328 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 12:29:54,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972496802] [2020-10-29 12:29:54,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:29:54,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:29:54,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851513432] [2020-10-29 12:29:54,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:29:54,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:54,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:29:54,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:29:54,332 INFO L87 Difference]: Start difference. First operand 3545 states and 4941 transitions. Second operand 14 states. [2020-10-29 12:29:54,675 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 132 [2020-10-29 12:29:54,852 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:29:55,357 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-29 12:29:57,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:57,263 INFO L93 Difference]: Finished difference Result 7160 states and 10001 transitions. [2020-10-29 12:29:57,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:29:57,264 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-10-29 12:29:57,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:57,291 INFO L225 Difference]: With dead ends: 7160 [2020-10-29 12:29:57,291 INFO L226 Difference]: Without dead ends: 4425 [2020-10-29 12:29:57,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2020-10-29 12:29:57,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4425 states. [2020-10-29 12:29:57,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 3618. [2020-10-29 12:29:57,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3618 states. [2020-10-29 12:29:57,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 5046 transitions. [2020-10-29 12:29:57,679 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 5046 transitions. Word has length 81 [2020-10-29 12:29:57,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:57,681 INFO L481 AbstractCegarLoop]: Abstraction has 3618 states and 5046 transitions. [2020-10-29 12:29:57,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:29:57,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5046 transitions. [2020-10-29 12:29:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-29 12:29:57,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:57,682 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] [2020-10-29 12:29:57,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:29:57,683 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:57,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:57,684 INFO L82 PathProgramCache]: Analyzing trace with hash -570114711, now seen corresponding path program 1 times [2020-10-29 12:29:57,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:57,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218774961] [2020-10-29 12:29:57,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:57,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:57,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:57,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:57,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:57,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:58,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:58,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:02,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:02,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:30:02,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:30:02,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:30:02,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:02,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 12:30:02,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 12:30:02,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:02,978 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:30:02,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:02,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:03,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:03,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:03,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:30:03,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:03,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:03,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:03,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:03,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:03,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:03,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:30:03,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:03,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:30:03,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:03,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:03,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:03,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:03,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 12:30:03,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:03,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:30:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:03,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:03,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:03,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:03,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:30:03,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:03,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:03,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:03,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:30:03,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:03,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 12:30:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:03,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:03,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:03,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:03,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:03,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:30:03,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:03,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:03,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:03,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 12:30:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:03,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:03,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:03,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:03,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:30:03,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:03,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:03,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:03,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:03,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:03,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:03,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:30:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:03,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:03,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:03,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:03,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:30:03,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:03,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:03,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:03,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:03,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:30:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:03,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:03,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:03,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:03,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:03,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:03,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:30:03,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:03,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:03,307 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 12:30:03,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218774961] [2020-10-29 12:30:03,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:03,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:30:03,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184524465] [2020-10-29 12:30:03,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:30:03,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:03,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:30:03,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:30:03,311 INFO L87 Difference]: Start difference. First operand 3618 states and 5046 transitions. Second operand 10 states. [2020-10-29 12:30:03,497 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:30:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:05,436 INFO L93 Difference]: Finished difference Result 10186 states and 14312 transitions. [2020-10-29 12:30:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 12:30:05,437 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-10-29 12:30:05,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:05,480 INFO L225 Difference]: With dead ends: 10186 [2020-10-29 12:30:05,480 INFO L226 Difference]: Without dead ends: 6670 [2020-10-29 12:30:05,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-29 12:30:05,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6670 states. [2020-10-29 12:30:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6670 to 6521. [2020-10-29 12:30:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6521 states. [2020-10-29 12:30:06,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6521 states to 6521 states and 8989 transitions. [2020-10-29 12:30:06,202 INFO L78 Accepts]: Start accepts. Automaton has 6521 states and 8989 transitions. Word has length 81 [2020-10-29 12:30:06,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:06,203 INFO L481 AbstractCegarLoop]: Abstraction has 6521 states and 8989 transitions. [2020-10-29 12:30:06,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:30:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 6521 states and 8989 transitions. [2020-10-29 12:30:06,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-29 12:30:06,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:06,204 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] [2020-10-29 12:30:06,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:30:06,205 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:06,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1546667699, now seen corresponding path program 1 times [2020-10-29 12:30:06,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:06,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797884157] [2020-10-29 12:30:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:06,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:06,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:06,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:06,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:07,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:10,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4023 [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-29 12:30:10,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:10,430 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:30:10,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:10,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:10,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:10,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:10,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:10,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:30:10,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:10,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:30:10,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:10,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:10,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:10,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:10,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:30:10,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:10,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:30:10,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:10,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:30:10,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:10,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 12:30:10,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:10,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:30:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:10,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:10,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:10,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:10,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:10,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:30:10,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:10,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:30:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:10,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:30:10,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:10,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 12:30:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:10,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:10,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:10,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:10,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:10,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:10,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:10,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:10,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:10,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:10,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:10,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:10,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 12:30:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:10,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:10,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:10,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:10,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:10,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:10,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:10,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:10,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:10,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:10,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:30:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:10,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:10,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:10,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:10,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:10,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:10,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:10,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:10,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:10,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:10,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:10,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 12:30:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:10,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:10,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:10,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:10,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:10,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:10,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:10,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:10,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:10,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:30:10,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:10,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:10,720 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 12:30:10,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797884157] [2020-10-29 12:30:10,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:10,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:30:10,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188837278] [2020-10-29 12:30:10,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:30:10,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:10,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:30:10,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:30:10,722 INFO L87 Difference]: Start difference. First operand 6521 states and 8989 transitions. Second operand 14 states. [2020-10-29 12:30:11,036 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 132 [2020-10-29 12:30:11,197 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:30:11,741 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2020-10-29 12:30:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:14,152 INFO L93 Difference]: Finished difference Result 9918 states and 13699 transitions. [2020-10-29 12:30:14,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 12:30:14,153 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 81 [2020-10-29 12:30:14,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:14,202 INFO L225 Difference]: With dead ends: 9918 [2020-10-29 12:30:14,202 INFO L226 Difference]: Without dead ends: 8195 [2020-10-29 12:30:14,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=244, Invalid=686, Unknown=0, NotChecked=0, Total=930 [2020-10-29 12:30:14,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8195 states. [2020-10-29 12:30:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8195 to 7329. [2020-10-29 12:30:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7329 states. [2020-10-29 12:30:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7329 states to 7329 states and 10110 transitions. [2020-10-29 12:30:14,951 INFO L78 Accepts]: Start accepts. Automaton has 7329 states and 10110 transitions. Word has length 81 [2020-10-29 12:30:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:14,951 INFO L481 AbstractCegarLoop]: Abstraction has 7329 states and 10110 transitions. [2020-10-29 12:30:14,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:30:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 7329 states and 10110 transitions. [2020-10-29 12:30:14,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 12:30:14,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:14,952 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] [2020-10-29 12:30:14,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:30:14,953 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:14,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:14,953 INFO L82 PathProgramCache]: Analyzing trace with hash 2082301200, now seen corresponding path program 1 times [2020-10-29 12:30:14,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:14,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2081524039] [2020-10-29 12:30:14,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:14,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:15,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:15,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:15,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1351 [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 12:30:16,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:16,493 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:30:16,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:16,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:16,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:16,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:16,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:16,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:16,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:16,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:16,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:16,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:16,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:16,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:16,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:30:16,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:16,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:30:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:16,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:16,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:16,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:30:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:16,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:16,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:16,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:16,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:16,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:16,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:16,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:16,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:16,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:30:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:16,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:16,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:16,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:16,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:16,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:16,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:16,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:16,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:30:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:16,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:16,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:16,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:16,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:16,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:16,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:16,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:16,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:16,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:16,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:16,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:30:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:16,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:16,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:16,726 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 12:30:16,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2081524039] [2020-10-29 12:30:16,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:16,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:30:16,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678861985] [2020-10-29 12:30:16,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:30:16,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:16,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:30:16,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:30:16,729 INFO L87 Difference]: Start difference. First operand 7329 states and 10110 transitions. Second operand 12 states. [2020-10-29 12:30:16,903 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-29 12:30:17,348 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:30:19,010 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:30:20,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:20,808 INFO L93 Difference]: Finished difference Result 20406 states and 28271 transitions. [2020-10-29 12:30:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 12:30:20,809 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-10-29 12:30:20,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:20,878 INFO L225 Difference]: With dead ends: 20406 [2020-10-29 12:30:20,879 INFO L226 Difference]: Without dead ends: 13151 [2020-10-29 12:30:20,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=265, Invalid=791, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 12:30:20,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13151 states. [2020-10-29 12:30:22,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13151 to 12576. [2020-10-29 12:30:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12576 states. [2020-10-29 12:30:22,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12576 states to 12576 states and 17207 transitions. [2020-10-29 12:30:22,086 INFO L78 Accepts]: Start accepts. Automaton has 12576 states and 17207 transitions. Word has length 82 [2020-10-29 12:30:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:22,086 INFO L481 AbstractCegarLoop]: Abstraction has 12576 states and 17207 transitions. [2020-10-29 12:30:22,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:30:22,086 INFO L276 IsEmpty]: Start isEmpty. Operand 12576 states and 17207 transitions. [2020-10-29 12:30:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 12:30:22,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:22,088 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] [2020-10-29 12:30:22,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:30:22,088 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:22,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:22,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1612867439, now seen corresponding path program 1 times [2020-10-29 12:30:22,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:22,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719729808] [2020-10-29 12:30:22,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:22,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:22,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:22,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:25,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:25,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 12:30:25,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:30:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3547 [2020-10-29 12:30:25,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:25,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-29 12:30:25,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 12:30:25,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:25,865 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:30:25,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:25,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:25,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:25,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:25,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:25,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:30:25,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:25,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:25,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:25,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:25,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:25,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:30:25,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:25,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:25,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:25,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:25,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:25,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:25,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:30:25,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:25,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:30:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:25,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:25,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:25,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:25,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:25,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:30:25,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:25,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:25,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:25,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:25,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:25,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:30:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:25,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:25,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:25,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:25,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:25,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:30:25,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:25,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:25,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:25,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:25,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:25,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:25,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:30:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:26,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:26,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:26,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:30:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:26,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:26,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:26,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:26,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:26,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:30:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:26,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:26,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:26,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:30:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:26,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,108 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 12:30:26,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719729808] [2020-10-29 12:30:26,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:26,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:30:26,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002206693] [2020-10-29 12:30:26,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:30:26,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:26,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:30:26,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:30:26,110 INFO L87 Difference]: Start difference. First operand 12576 states and 17207 transitions. Second operand 10 states. [2020-10-29 12:30:26,306 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:30:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:29,260 INFO L93 Difference]: Finished difference Result 35690 states and 49079 transitions. [2020-10-29 12:30:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 12:30:29,261 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-29 12:30:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:29,351 INFO L225 Difference]: With dead ends: 35690 [2020-10-29 12:30:29,351 INFO L226 Difference]: Without dead ends: 23189 [2020-10-29 12:30:29,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-29 12:30:29,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23189 states. [2020-10-29 12:30:31,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23189 to 23186. [2020-10-29 12:30:31,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23186 states. [2020-10-29 12:30:31,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23186 states to 23186 states and 31221 transitions. [2020-10-29 12:30:31,549 INFO L78 Accepts]: Start accepts. Automaton has 23186 states and 31221 transitions. Word has length 82 [2020-10-29 12:30:31,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:31,549 INFO L481 AbstractCegarLoop]: Abstraction has 23186 states and 31221 transitions. [2020-10-29 12:30:31,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:30:31,550 INFO L276 IsEmpty]: Start isEmpty. Operand 23186 states and 31221 transitions. [2020-10-29 12:30:31,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 12:30:31,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:31,551 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] [2020-10-29 12:30:31,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 12:30:31,551 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:31,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:31,552 INFO L82 PathProgramCache]: Analyzing trace with hash -766354375, now seen corresponding path program 1 times [2020-10-29 12:30:31,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:31,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796682141] [2020-10-29 12:30:31,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:31,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:31,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 856 [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 12:30:32,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:32,579 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:30:32,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:32,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:32,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:32,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:30:32,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:32,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:32,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:32,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:30:32,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:30:32,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:32,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:30:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:32,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:30:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:32,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:32,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:32,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:32,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:30:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:32,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:32,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:32,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:32,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:32,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:32,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:32,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:30:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:32,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:32,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:32,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:32,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:32,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:32,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:32,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:32,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:32,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:30:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:32,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:32,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:30:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:32,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:32,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:32,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:32,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:32,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:32,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:30:32,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:32,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:32,780 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 12:30:32,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796682141] [2020-10-29 12:30:32,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:32,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-29 12:30:32,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187049323] [2020-10-29 12:30:32,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 12:30:32,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:32,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 12:30:32,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 12:30:32,782 INFO L87 Difference]: Start difference. First operand 23186 states and 31221 transitions. Second operand 10 states. [2020-10-29 12:30:32,954 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:30:36,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:36,648 INFO L93 Difference]: Finished difference Result 49396 states and 66857 transitions. [2020-10-29 12:30:36,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 12:30:36,648 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-29 12:30:36,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:36,993 INFO L225 Difference]: With dead ends: 49396 [2020-10-29 12:30:36,993 INFO L226 Difference]: Without dead ends: 32152 [2020-10-29 12:30:37,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-29 12:30:37,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32152 states. [2020-10-29 12:30:40,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32152 to 32149. [2020-10-29 12:30:40,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32149 states. [2020-10-29 12:30:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32149 states to 32149 states and 42676 transitions. [2020-10-29 12:30:40,265 INFO L78 Accepts]: Start accepts. Automaton has 32149 states and 42676 transitions. Word has length 82 [2020-10-29 12:30:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:40,265 INFO L481 AbstractCegarLoop]: Abstraction has 32149 states and 42676 transitions. [2020-10-29 12:30:40,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 12:30:40,265 INFO L276 IsEmpty]: Start isEmpty. Operand 32149 states and 42676 transitions. [2020-10-29 12:30:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 12:30:40,266 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:40,266 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] [2020-10-29 12:30:40,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 12:30:40,267 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:40,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:40,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1319708547, now seen corresponding path program 1 times [2020-10-29 12:30:40,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:40,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143238251] [2020-10-29 12:30:40,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:40,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:40,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:40,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 12:30:40,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:40,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-10-29 12:30:40,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:40,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:30:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-29 12:30:40,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:30:40,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:40,893 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:30:40,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:40,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:40,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:40,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:40,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:30:40,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:40,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:40,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:40,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:40,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:40,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:30:40,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:40,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:40,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:40,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:40,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:40,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:40,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:30:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:40,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:40,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:40,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:40,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:40,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:40,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:40,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:40,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:30:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:40,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:40,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:40,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:40,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:40,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:40,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:41,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:30:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:41,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:41,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:41,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:41,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:41,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:41,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:41,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:41,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:41,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:41,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:41,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:41,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:30:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:41,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:41,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:41,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:41,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:41,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:41,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:41,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:41,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:41,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:41,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:41,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:30:41,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:30:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:41,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:41,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:41,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:41,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:41,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:30:41,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:41,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:41,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:41,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:30:41,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-29 12:30:41,118 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 12:30:41,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143238251] [2020-10-29 12:30:41,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:41,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:30:41,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533118943] [2020-10-29 12:30:41,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:30:41,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:41,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:30:41,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:30:41,121 INFO L87 Difference]: Start difference. First operand 32149 states and 42676 transitions. Second operand 13 states. [2020-10-29 12:30:41,914 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-29 12:30:42,067 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-29 12:30:42,241 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-29 12:30:42,414 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-29 12:30:45,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:45,298 INFO L93 Difference]: Finished difference Result 34537 states and 47129 transitions. [2020-10-29 12:30:45,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 12:30:45,299 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 82 [2020-10-29 12:30:45,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:45,468 INFO L225 Difference]: With dead ends: 34537 [2020-10-29 12:30:45,468 INFO L226 Difference]: Without dead ends: 34534 [2020-10-29 12:30:45,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-29 12:30:45,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34534 states. [2020-10-29 12:30:49,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34534 to 32725. [2020-10-29 12:30:49,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32725 states. [2020-10-29 12:30:49,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32725 states to 32725 states and 43132 transitions. [2020-10-29 12:30:49,325 INFO L78 Accepts]: Start accepts. Automaton has 32725 states and 43132 transitions. Word has length 82 [2020-10-29 12:30:49,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:49,325 INFO L481 AbstractCegarLoop]: Abstraction has 32725 states and 43132 transitions. [2020-10-29 12:30:49,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:30:49,326 INFO L276 IsEmpty]: Start isEmpty. Operand 32725 states and 43132 transitions. [2020-10-29 12:30:49,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-29 12:30:49,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:49,334 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:49,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 12:30:49,334 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:49,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1340324756, now seen corresponding path program 1 times [2020-10-29 12:30:49,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:49,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452481431] [2020-10-29 12:30:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:49,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:49,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:49,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:51,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:51,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:51,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:52,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 12:30:54,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:30:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 12:30:54,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:30:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:30:54,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 12:30:54,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,579 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:30:54,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:54,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:54,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:54,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:30:54,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:54,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:54,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:54,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 12:30:54,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:30:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:54,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:30:54,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:30:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:54,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,849 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 31 [2020-10-29 12:30:54,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:30:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:54,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:54,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:54,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:54,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:54,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:30:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:54,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:54,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:54,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:30:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:55,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:55,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:55,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:55,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:55,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:55,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:55,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:55,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:55,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:30:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:55,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:55,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:55,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:55,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:55,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:55,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:55,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:55,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:55,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:30:55,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 12:30:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:55,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:55,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:55,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:55,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:55,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:55,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:55,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:55,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:55,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:55,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:55,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 12:30:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:55,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:55,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:55,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:55,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:55,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:30:55,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:55,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:55,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:55,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:55,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:55,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 12:30:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:55,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:55,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:55,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:55,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:55,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:30:55,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:55,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:30:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:55,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:55,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 12:30:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:55,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:55,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:55,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:55,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:55,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:55,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:55,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:55,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:55,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:55,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:55,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 12:30:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:55,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:55,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:55,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:55,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:55,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:55,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:55,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:55,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:30:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:55,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 12:30:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:55,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:55,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:55,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:55,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:55,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:55,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:55,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:30:55,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:55,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 12:30:55,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452481431] [2020-10-29 12:30:55,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:30:55,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 12:30:55,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581412927] [2020-10-29 12:30:55,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:30:55,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:55,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:30:55,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:30:55,216 INFO L87 Difference]: Start difference. First operand 32725 states and 43132 transitions. Second operand 16 states. [2020-10-29 12:30:55,470 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-29 12:30:55,869 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-29 12:30:56,386 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 149 [2020-10-29 12:30:56,763 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-29 12:30:57,662 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-29 12:30:58,370 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 151 [2020-10-29 12:30:58,813 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:31:01,905 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:31:09,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:09,046 INFO L93 Difference]: Finished difference Result 136176 states and 181205 transitions. [2020-10-29 12:31:09,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-29 12:31:09,047 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 127 [2020-10-29 12:31:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:09,756 INFO L225 Difference]: With dead ends: 136176 [2020-10-29 12:31:09,757 INFO L226 Difference]: Without dead ends: 103517 [2020-10-29 12:31:09,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 989 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=659, Invalid=2881, Unknown=0, NotChecked=0, Total=3540 [2020-10-29 12:31:09,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103517 states. [2020-10-29 12:31:18,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103517 to 91227. [2020-10-29 12:31:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91227 states. [2020-10-29 12:31:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91227 states to 91227 states and 120959 transitions. [2020-10-29 12:31:18,837 INFO L78 Accepts]: Start accepts. Automaton has 91227 states and 120959 transitions. Word has length 127 [2020-10-29 12:31:18,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:18,838 INFO L481 AbstractCegarLoop]: Abstraction has 91227 states and 120959 transitions. [2020-10-29 12:31:18,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 12:31:18,838 INFO L276 IsEmpty]: Start isEmpty. Operand 91227 states and 120959 transitions. [2020-10-29 12:31:18,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-29 12:31:18,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:18,853 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:18,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 12:31:18,853 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:18,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1196046068, now seen corresponding path program 1 times [2020-10-29 12:31:18,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:18,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881682922] [2020-10-29 12:31:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:18,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:18,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:23,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 12:31:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,068 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-29 12:31:24,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:24,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:31:24,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:24,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 12:31:24,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:31:24,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 12:31:24,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 12:31:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:24,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:24,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:24,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:24,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:31:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:24,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:24,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:24,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 12:31:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:24,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:24,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:24,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:24,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:31:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:24,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:31:24,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:31:24,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:24,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:24,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:31:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:24,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:24,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:24,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:31:24,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 12:31:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:24,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:24,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:24,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:24,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 12:31:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:24,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:31:24,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:31:24,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:24,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:24,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 12:31:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:24,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:24,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:31:24,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:24,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-29 12:31:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:24,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:24,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:24,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:24,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:24,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-29 12:31:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:24,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:24,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:24,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:24,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-29 12:31:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:24,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:24,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:24,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:24,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:24,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:24,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:24,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:24,515 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 12:31:24,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881682922] [2020-10-29 12:31:24,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:31:24,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 12:31:24,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211708368] [2020-10-29 12:31:24,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 12:31:24,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:24,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 12:31:24,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:31:24,517 INFO L87 Difference]: Start difference. First operand 91227 states and 120959 transitions. Second operand 16 states. [2020-10-29 12:31:24,760 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-10-29 12:31:25,156 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-29 12:31:25,893 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 137 [2020-10-29 12:31:26,028 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2020-10-29 12:31:26,317 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-29 12:31:27,745 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 139 [2020-10-29 12:31:28,023 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-10-29 12:31:30,914 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-29 12:31:46,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:46,403 INFO L93 Difference]: Finished difference Result 306046 states and 405198 transitions. [2020-10-29 12:31:46,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-29 12:31:46,404 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 127 [2020-10-29 12:31:46,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:47,767 INFO L225 Difference]: With dead ends: 306046 [2020-10-29 12:31:47,767 INFO L226 Difference]: Without dead ends: 238156 [2020-10-29 12:31:47,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=426, Invalid=1736, Unknown=0, NotChecked=0, Total=2162 [2020-10-29 12:31:48,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238156 states. [2020-10-29 12:32:08,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238156 to 231130. [2020-10-29 12:32:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231130 states. [2020-10-29 12:32:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231130 states to 231130 states and 305730 transitions. [2020-10-29 12:32:10,102 INFO L78 Accepts]: Start accepts. Automaton has 231130 states and 305730 transitions. Word has length 127 [2020-10-29 12:32:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:10,105 INFO L481 AbstractCegarLoop]: Abstraction has 231130 states and 305730 transitions. [2020-10-29 12:32:10,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 12:32:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 231130 states and 305730 transitions. [2020-10-29 12:32:10,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-29 12:32:10,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:10,122 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:10,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 12:32:10,122 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:10,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1997516502, now seen corresponding path program 1 times [2020-10-29 12:32:10,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:10,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697978458] [2020-10-29 12:32:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:10,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:10,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:10,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking...