/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.5.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:29:51,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:29:51,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:29:52,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:29:52,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:29:52,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:29:52,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:29:52,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:29:52,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:29:52,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:29:52,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:29:52,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:29:52,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:29:52,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:29:52,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:29:52,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:29:52,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:29:52,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:29:52,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:29:52,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:29:52,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:29:52,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:29:52,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:29:52,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:29:52,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:29:52,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:29:52,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:29:52,075 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:29:52,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:29:52,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:29:52,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:29:52,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:29:52,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:29:52,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:29:52,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:29:52,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:29:52,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:29:52,082 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:29:52,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:29:52,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:29:52,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:29:52,085 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 12:29:52,114 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:29:52,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:29:52,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:29:52,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:29:52,117 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:29:52,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:29:52,118 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:29:52,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:29:52,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:29:52,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:29:52,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:29:52,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:29:52,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:29:52,120 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:29:52,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:29:52,120 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:29:52,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:29:52,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:29:52,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:29:52,121 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:29:52,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:29:52,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:29:52,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:29:52,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:29:52,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:29:52,122 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:29:52,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:29:52,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:29:52,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:29:52,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:29:52,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:29:52,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:29:52,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:29:52,579 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:29:52,580 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:29:52,583 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:29:52,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492ebf202/1ee968446a8b46a69c950a5daca14679/FLAG3879d96ab [2020-10-29 12:29:53,338 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:29:53,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:29:53,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492ebf202/1ee968446a8b46a69c950a5daca14679/FLAG3879d96ab [2020-10-29 12:29:53,682 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/492ebf202/1ee968446a8b46a69c950a5daca14679 [2020-10-29 12:29:53,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:29:53,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:29:53,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:29:53,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:29:53,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:29:53,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:29:53" (1/1) ... [2020-10-29 12:29:53,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c00a5ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:53, skipping insertion in model container [2020-10-29 12:29:53,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:29:53" (1/1) ... [2020-10-29 12:29:53,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:29:53,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:29:54,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:29:54,024 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:29:54,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:29:54,136 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:29:54,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54 WrapperNode [2020-10-29 12:29:54,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:29:54,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:29:54,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:29:54,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:29:54,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (1/1) ... [2020-10-29 12:29:54,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (1/1) ... [2020-10-29 12:29:54,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (1/1) ... [2020-10-29 12:29:54,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (1/1) ... [2020-10-29 12:29:54,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (1/1) ... [2020-10-29 12:29:54,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (1/1) ... [2020-10-29 12:29:54,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (1/1) ... [2020-10-29 12:29:54,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:29:54,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:29:54,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:29:54,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:29:54,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (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 12:29:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:29:54,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:29:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:29:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:29:54,284 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:29:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:29:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:29:54,285 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:29:54,286 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-29 12:29:54,286 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:29:54,287 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:29:54,288 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:29:54,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:29:54,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:29:54,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:29:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:29:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:29:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:29:54,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:29:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-29 12:29:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:29:54,290 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:29:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:29:54,291 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:29:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:29:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:29:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:29:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:29:54,295 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-29 12:29:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:29:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:29:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:29:54,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:29:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:29:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:29:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:29:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:29:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:29:55,214 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:29:55,214 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:29:55,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:29:55 BoogieIcfgContainer [2020-10-29 12:29:55,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:29:55,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:29:55,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:29:55,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:29:55,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:29:53" (1/3) ... [2020-10-29 12:29:55,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e48016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:29:55, skipping insertion in model container [2020-10-29 12:29:55,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:29:54" (2/3) ... [2020-10-29 12:29:55,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e48016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:29:55, skipping insertion in model container [2020-10-29 12:29:55,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:29:55" (3/3) ... [2020-10-29 12:29:55,229 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:29:55,240 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:29:55,245 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:29:55,256 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:29:55,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:29:55,283 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:29:55,283 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:29:55,284 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:29:55,284 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:29:55,284 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:29:55,284 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:29:55,284 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:29:55,306 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-10-29 12:29:55,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 12:29:55,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:55,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:29:55,318 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:55,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1494883357, now seen corresponding path program 1 times [2020-10-29 12:29:55,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:55,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247220966] [2020-10-29 12:29:55,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:55,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:55,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:55,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:29:55,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:55,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-29 12:29:55,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:55,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:55,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 12:29:55,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:55,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:29:56,211 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:29:56,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:56,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:29:56,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:56,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:56,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:56,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:29:56,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:56,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:56,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:29:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:29:56,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:29:56,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:29:56,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:56,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:29:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:56,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:29:56,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:56,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:29:56,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:29:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:56,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:29:56,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:29:56,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:29:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:56,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:29:56,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:56,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:56,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:29:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:29:56,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:56,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:56,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:29:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:56,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:29:56,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:56,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:56,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 12:29:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:56,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:56,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:56,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:56,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:56,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:29:56,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:56,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:56,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:56,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:29:56,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:56,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:56,582 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 12:29:56,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247220966] [2020-10-29 12:29:56,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:29:56,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 12:29:56,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161673066] [2020-10-29 12:29:56,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 12:29:56,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:56,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 12:29:56,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-29 12:29:56,610 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 8 states. [2020-10-29 12:29:57,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:57,816 INFO L93 Difference]: Finished difference Result 217 states and 318 transitions. [2020-10-29 12:29:57,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 12:29:57,819 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-29 12:29:57,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:57,831 INFO L225 Difference]: With dead ends: 217 [2020-10-29 12:29:57,831 INFO L226 Difference]: Without dead ends: 128 [2020-10-29 12:29:57,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:29:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-29 12:29:57,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2020-10-29 12:29:57,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-29 12:29:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2020-10-29 12:29:57,892 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 68 [2020-10-29 12:29:57,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:57,893 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2020-10-29 12:29:57,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 12:29:57,893 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2020-10-29 12:29:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 12:29:57,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:57,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:29:57,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:29:57,897 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:57,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:57,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1938784031, now seen corresponding path program 1 times [2020-10-29 12:29:57,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:57,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398510111] [2020-10-29 12:29:57,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:57,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:58,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:58,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:29:58,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-10-29 12:29:58,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:58,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:58,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:29:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:29:58,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:29:58,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:58,986 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:29:58,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:58,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:59,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:29:59,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:59,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:59,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:59,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:29:59,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:59,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:59,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:29:59,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:29:59,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:59,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:29:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:59,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:29:59,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:29:59,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:29:59,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:29:59,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:59,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:29:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:59,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:59,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:29:59,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:59,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:59,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:59,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:29:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:59,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:59,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:29:59,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:59,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:59,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:59,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:59,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:29:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:59,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:59,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:59,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:59,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:59,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:59,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:29:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:59,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:59,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:29:59,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:59,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:59,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:59,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:59,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:29:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:59,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:59,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:29:59,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:29:59,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:59,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:59,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 12:29:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:59,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:59,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:59,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:59,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:59,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:29:59,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:59,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:59,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:59,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:29:59,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:59,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:59,389 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 12:29:59,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398510111] [2020-10-29 12:29:59,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:29:59,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:29:59,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514922703] [2020-10-29 12:29:59,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:29:59,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:59,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:29:59,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:29:59,394 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand 14 states. [2020-10-29 12:29:59,697 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:29:59,918 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:30:00,298 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-29 12:30:00,578 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:30:02,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:02,431 INFO L93 Difference]: Finished difference Result 212 states and 306 transitions. [2020-10-29 12:30:02,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 12:30:02,432 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-29 12:30:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:02,437 INFO L225 Difference]: With dead ends: 212 [2020-10-29 12:30:02,437 INFO L226 Difference]: Without dead ends: 128 [2020-10-29 12:30:02,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:30:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-29 12:30:02,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2020-10-29 12:30:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-29 12:30:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 158 transitions. [2020-10-29 12:30:02,463 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 158 transitions. Word has length 68 [2020-10-29 12:30:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:02,465 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 158 transitions. [2020-10-29 12:30:02,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:30:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 158 transitions. [2020-10-29 12:30:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 12:30:02,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:02,474 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:30:02,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:30:02,474 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:02,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:02,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1276082680, now seen corresponding path program 1 times [2020-10-29 12:30:02,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:02,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051724070] [2020-10-29 12:30:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:02,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:02,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:02,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:07,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:07,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-29 12:30:07,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:30:07,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4877 [2020-10-29 12:30:07,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:07,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:30:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:30:07,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 12:30:07,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:07,651 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:30:07,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:07,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:07,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:07,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:07,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:07,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:30:07,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:07,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:07,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:07,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:07,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:07,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:07,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:07,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:07,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:07,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:30:07,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:07,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 12:30:07,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:07,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:30:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:07,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:30:07,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:07,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:30:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:07,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:07,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:07,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:07,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:07,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:07,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:07,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:07,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:07,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:30:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:07,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:07,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:07,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:07,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:07,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:30:07,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:07,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:07,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:07,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:07,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:07,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:08,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:30:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:08,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:08,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:08,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:08,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:08,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:30:08,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:08,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:08,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:30:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:08,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:08,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:08,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:08,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:08,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:30:08,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:08,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:08,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:08,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:30:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:08,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:08,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:08,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:08,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:30:08,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:08,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:08,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:08,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:08,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:30:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:08,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:08,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:08,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:08,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:08,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:30:08,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:08,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:08,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:08,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:30:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:08,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:08,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:08,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:08,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:08,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:08,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:08,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:08,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:08,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:30:08,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:30:08,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:08,381 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 12:30:08,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051724070] [2020-10-29 12:30:08,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:08,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 12:30:08,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372543544] [2020-10-29 12:30:08,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 12:30:08,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:08,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 12:30:08,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:30:08,384 INFO L87 Difference]: Start difference. First operand 127 states and 158 transitions. Second operand 19 states. [2020-10-29 12:30:08,989 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-29 12:30:09,244 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:30:09,496 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:30:09,760 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:30:10,051 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-29 12:30:10,438 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2020-10-29 12:30:10,834 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2020-10-29 12:30:11,420 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2020-10-29 12:30:12,286 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-10-29 12:30:13,449 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2020-10-29 12:30:15,060 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-29 12:30:15,322 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-29 12:30:15,576 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:30:15,810 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:30:16,092 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:30:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:24,615 INFO L93 Difference]: Finished difference Result 1033 states and 1434 transitions. [2020-10-29 12:30:24,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-29 12:30:24,616 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-29 12:30:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:24,631 INFO L225 Difference]: With dead ends: 1033 [2020-10-29 12:30:24,632 INFO L226 Difference]: Without dead ends: 955 [2020-10-29 12:30:24,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4079 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=2092, Invalid=9464, Unknown=0, NotChecked=0, Total=11556 [2020-10-29 12:30:24,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2020-10-29 12:30:24,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 914. [2020-10-29 12:30:24,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 914 states. [2020-10-29 12:30:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1280 transitions. [2020-10-29 12:30:24,806 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1280 transitions. Word has length 98 [2020-10-29 12:30:24,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:24,807 INFO L481 AbstractCegarLoop]: Abstraction has 914 states and 1280 transitions. [2020-10-29 12:30:24,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 12:30:24,807 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1280 transitions. [2020-10-29 12:30:24,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:30:24,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:24,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:30:24,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:30:24,818 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:24,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:24,819 INFO L82 PathProgramCache]: Analyzing trace with hash -870746376, now seen corresponding path program 1 times [2020-10-29 12:30:24,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:24,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796819994] [2020-10-29 12:30:24,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:24,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:24,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:24,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:25,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:28,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:29,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:29,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:30:29,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:30:29,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-29 12:30:29,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:29,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:29,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:29,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:30:29,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 12:30:29,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,134 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:30:30,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:30,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:30,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:30:30,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:30,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:30,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:30,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:30:30,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:30,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:30:30,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:30:30,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:30:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:30,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:30,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:30:30,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:30,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:30:30,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:30:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:30,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:30,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:30:30,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:30,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:30,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:30:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:30,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:30,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:30,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:30,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:30:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:30,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:30,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:30:30,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:30,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:30,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:30,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:30:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:30,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:30,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:30,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:30:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:30,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:30,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:30,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:30:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:30,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:30,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:30,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:30:30,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:30:30,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:30,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:30,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:30,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:30,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:30:30,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:30,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:30,504 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 12:30:30,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796819994] [2020-10-29 12:30:30,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:30,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:30:30,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953803613] [2020-10-29 12:30:30,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:30:30,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:30,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:30:30,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:30:30,508 INFO L87 Difference]: Start difference. First operand 914 states and 1280 transitions. Second operand 11 states. [2020-10-29 12:30:30,795 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:30:32,841 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:30:34,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:34,347 INFO L93 Difference]: Finished difference Result 3273 states and 4661 transitions. [2020-10-29 12:30:34,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:30:34,348 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-29 12:30:34,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:34,372 INFO L225 Difference]: With dead ends: 3273 [2020-10-29 12:30:34,372 INFO L226 Difference]: Without dead ends: 2408 [2020-10-29 12:30:34,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2020-10-29 12:30:34,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2020-10-29 12:30:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2360. [2020-10-29 12:30:34,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2360 states. [2020-10-29 12:30:34,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3306 transitions. [2020-10-29 12:30:34,629 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3306 transitions. Word has length 100 [2020-10-29 12:30:34,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:34,630 INFO L481 AbstractCegarLoop]: Abstraction has 2360 states and 3306 transitions. [2020-10-29 12:30:34,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:30:34,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3306 transitions. [2020-10-29 12:30:34,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:30:34,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:34,633 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:30:34,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:30:34,634 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:34,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:34,634 INFO L82 PathProgramCache]: Analyzing trace with hash -2134816848, now seen corresponding path program 1 times [2020-10-29 12:30:34,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:34,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [912201784] [2020-10-29 12:30:34,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:34,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:34,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:34,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:30:38,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:30:38,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3473 [2020-10-29 12:30:38,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:30:38,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:30:38,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:30:38,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:38,446 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:30:38,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:38,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:38,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:38,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:30:38,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:38,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:38,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:38,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:38,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:30:38,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:38,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 12:30:38,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:30:38,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:38,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:30:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:38,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:30:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:38,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:38,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:38,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:38,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:38,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:38,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:30:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:38,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:38,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:38,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:30:38,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:38,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:38,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:38,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:38,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:30:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:38,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:38,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:38,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:30:38,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:38,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:38,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:38,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:38,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:30:38,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:38,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:38,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:38,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:30:38,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:38,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:38,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:38,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:30:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:38,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:38,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:38,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:30:38,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:38,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:38,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:38,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:30:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:38,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:38,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:38,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:38,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:38,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:30:38,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:38,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:38,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:39,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:30:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:39,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:39,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:39,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:30:39,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:39,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:39,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:39,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:39,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:39,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:30:39,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:30:39,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:39,095 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 12:30:39,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [912201784] [2020-10-29 12:30:39,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:39,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 12:30:39,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319810193] [2020-10-29 12:30:39,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 12:30:39,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:39,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 12:30:39,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:30:39,100 INFO L87 Difference]: Start difference. First operand 2360 states and 3306 transitions. Second operand 19 states. [2020-10-29 12:30:39,401 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:30:39,646 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-29 12:30:39,886 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:30:40,133 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:30:40,394 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:30:41,251 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:30:42,057 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-29 12:30:43,247 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-29 12:30:45,017 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-29 12:30:47,010 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-29 12:30:55,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:55,985 INFO L93 Difference]: Finished difference Result 6206 states and 9215 transitions. [2020-10-29 12:30:55,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-10-29 12:30:55,986 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2020-10-29 12:30:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:56,015 INFO L225 Difference]: With dead ends: 6206 [2020-10-29 12:30:56,016 INFO L226 Difference]: Without dead ends: 3895 [2020-10-29 12:30:56,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4469 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=2351, Invalid=9639, Unknown=0, NotChecked=0, Total=11990 [2020-10-29 12:30:56,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3895 states. [2020-10-29 12:30:56,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3895 to 3166. [2020-10-29 12:30:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3166 states. [2020-10-29 12:30:56,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 4475 transitions. [2020-10-29 12:30:56,434 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 4475 transitions. Word has length 100 [2020-10-29 12:30:56,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:56,435 INFO L481 AbstractCegarLoop]: Abstraction has 3166 states and 4475 transitions. [2020-10-29 12:30:56,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 12:30:56,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 4475 transitions. [2020-10-29 12:30:56,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:30:56,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:56,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:30:56,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:30:56,439 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:56,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:56,440 INFO L82 PathProgramCache]: Analyzing trace with hash 597567454, now seen corresponding path program 1 times [2020-10-29 12:30:56,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:56,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117217128] [2020-10-29 12:30:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:56,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:56,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:56,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:56,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:59,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:01,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:01,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:01,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:31:01,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 12:31:01,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:01,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:01,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:01,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:31:01,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 12:31:01,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:01,816 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:01,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:01,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:01,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:01,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:01,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 12:31:01,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:01,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:31:01,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:01,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:01,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:01,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:01,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:01,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:01,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:31:01,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:01,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:01,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:31:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:31:01,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:01,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:01,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:01,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:01,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:01,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:01,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:01,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:01,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:01,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:01,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:01,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:01,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:01,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:01,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:01,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:01,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:01,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:01,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:01,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:01,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:01,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:01,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:02,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:02,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:02,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:02,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:02,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:02,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:31:02,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:02,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:02,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:02,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:02,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:02,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:02,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:02,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:02,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:02,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:31:02,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:02,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:02,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:02,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:02,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:02,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:31:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:02,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:02,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:02,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:02,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:02,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:02,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:02,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:02,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:02,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:02,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:31:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:02,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:02,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:02,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:02,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:02,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:31:02,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:02,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:31:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:02,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:31:02,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:02,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:02,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:02,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:02,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:02,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:02,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:02,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:02,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:02,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:02,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:02,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:02,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:02,224 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 12:31:02,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117217128] [2020-10-29 12:31:02,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:02,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:31:02,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761037391] [2020-10-29 12:31:02,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:31:02,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:02,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:31:02,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:02,229 INFO L87 Difference]: Start difference. First operand 3166 states and 4475 transitions. Second operand 15 states. [2020-10-29 12:31:02,737 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-29 12:31:03,002 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:03,851 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-29 12:31:04,064 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-29 12:31:04,353 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:04,636 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:04,899 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:05,454 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-29 12:31:05,664 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:06,136 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-29 12:31:06,380 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:06,619 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:06,874 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:07,139 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-29 12:31:07,345 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-29 12:31:07,516 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:07,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:07,701 INFO L93 Difference]: Finished difference Result 6921 states and 9727 transitions. [2020-10-29 12:31:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:31:07,701 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-29 12:31:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:07,723 INFO L225 Difference]: With dead ends: 6921 [2020-10-29 12:31:07,724 INFO L226 Difference]: Without dead ends: 3804 [2020-10-29 12:31:07,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 12:31:07,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2020-10-29 12:31:08,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3565. [2020-10-29 12:31:08,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3565 states. [2020-10-29 12:31:08,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 5020 transitions. [2020-10-29 12:31:08,094 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 5020 transitions. Word has length 100 [2020-10-29 12:31:08,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:08,095 INFO L481 AbstractCegarLoop]: Abstraction has 3565 states and 5020 transitions. [2020-10-29 12:31:08,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:31:08,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 5020 transitions. [2020-10-29 12:31:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:31:08,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:08,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:31:08,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:31:08,099 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:08,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1673949970, now seen corresponding path program 1 times [2020-10-29 12:31:08,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:08,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045021322] [2020-10-29 12:31:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:08,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:08,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:08,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:09,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:09,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:13,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:31:13,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:31:13,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 12:31:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 12:31:13,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:13,481 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:13,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:13,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:31:13,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:13,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:13,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:13,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:13,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:13,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 12:31:13,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:13,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:31:13,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:13,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:13,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:13,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:13,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:13,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:13,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:13,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:13,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:31:13,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:13,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:13,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:13,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:31:13,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:13,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:13,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:13,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:13,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:31:13,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:13,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:13,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:13,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:31:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:13,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:31:13,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:31:13,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:13,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:13,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:31:13,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:13,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:13,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:31:13,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:13,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:13,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:13,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:13,945 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 12:31:13,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045021322] [2020-10-29 12:31:13,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:13,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:31:13,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058691330] [2020-10-29 12:31:13,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:31:13,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:13,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:31:13,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:31:13,951 INFO L87 Difference]: Start difference. First operand 3565 states and 5020 transitions. Second operand 11 states. [2020-10-29 12:31:14,234 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:16,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:16,903 INFO L93 Difference]: Finished difference Result 9605 states and 13622 transitions. [2020-10-29 12:31:16,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:31:16,904 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-29 12:31:16,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:16,943 INFO L225 Difference]: With dead ends: 9605 [2020-10-29 12:31:16,943 INFO L226 Difference]: Without dead ends: 6432 [2020-10-29 12:31:16,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:31:16,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6432 states. [2020-10-29 12:31:17,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6432 to 6357. [2020-10-29 12:31:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6357 states. [2020-10-29 12:31:17,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6357 states to 6357 states and 8898 transitions. [2020-10-29 12:31:17,644 INFO L78 Accepts]: Start accepts. Automaton has 6357 states and 8898 transitions. Word has length 100 [2020-10-29 12:31:17,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:17,644 INFO L481 AbstractCegarLoop]: Abstraction has 6357 states and 8898 transitions. [2020-10-29 12:31:17,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:31:17,645 INFO L276 IsEmpty]: Start isEmpty. Operand 6357 states and 8898 transitions. [2020-10-29 12:31:17,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:31:17,649 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:17,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:31:17,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:31:17,650 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:17,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:17,650 INFO L82 PathProgramCache]: Analyzing trace with hash -504234916, now seen corresponding path program 1 times [2020-10-29 12:31:17,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:17,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1264563143] [2020-10-29 12:31:17,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:17,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:17,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:17,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:18,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:22,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:31:22,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4461 [2020-10-29 12:31:22,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:22,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:31:22,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 12:31:22,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,398 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:22,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:22,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:31:22,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:31:22,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:22,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:31:22,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:31:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:22,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:31:22,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:22,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:22,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:22,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:22,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:22,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:22,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:22,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:22,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:22,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:22,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:22,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:22,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:22,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:22,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:22,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:22,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:31:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:22,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:31:22,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:31:22,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:22,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:31:22,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:22,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:22,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:22,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:22,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:22,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:22,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:22,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:22,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:22,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:31:22,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:22,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:22,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:22,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:22,854 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 12:31:22,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1264563143] [2020-10-29 12:31:22,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:22,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:31:22,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316355002] [2020-10-29 12:31:22,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:31:22,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:22,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:31:22,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:22,856 INFO L87 Difference]: Start difference. First operand 6357 states and 8898 transitions. Second operand 15 states. [2020-10-29 12:31:23,367 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-29 12:31:23,619 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:24,398 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-29 12:31:24,583 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-29 12:31:24,837 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:25,103 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:25,647 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-29 12:31:25,846 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:26,066 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:26,538 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-29 12:31:26,796 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:27,044 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:27,318 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-29 12:31:27,535 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-29 12:31:27,717 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:27,974 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:28,589 INFO L93 Difference]: Finished difference Result 13642 states and 18896 transitions. [2020-10-29 12:31:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:31:28,589 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-29 12:31:28,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:28,651 INFO L225 Difference]: With dead ends: 13642 [2020-10-29 12:31:28,651 INFO L226 Difference]: Without dead ends: 7536 [2020-10-29 12:31:28,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 12:31:28,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7536 states. [2020-10-29 12:31:29,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7536 to 6288. [2020-10-29 12:31:29,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6288 states. [2020-10-29 12:31:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6288 states to 6288 states and 8792 transitions. [2020-10-29 12:31:29,486 INFO L78 Accepts]: Start accepts. Automaton has 6288 states and 8792 transitions. Word has length 100 [2020-10-29 12:31:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:29,486 INFO L481 AbstractCegarLoop]: Abstraction has 6288 states and 8792 transitions. [2020-10-29 12:31:29,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:31:29,486 INFO L276 IsEmpty]: Start isEmpty. Operand 6288 states and 8792 transitions. [2020-10-29 12:31:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:31:29,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:29,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:31:29,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:31:29,489 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:29,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:29,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1269325282, now seen corresponding path program 1 times [2020-10-29 12:31:29,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:29,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291030807] [2020-10-29 12:31:29,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:29,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:29,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:29,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:34,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:31:34,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 12:31:34,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:31:34,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 12:31:34,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,800 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:34,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:34,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:31:34,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:34,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:31:34,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:34,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:31:34,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:31:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:34,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:31:34,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:34,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:34,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:34,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:34,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:34,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:34,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:34,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:34,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:34,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:34,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:34,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:34,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:31:34,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:34,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:31:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:31:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:35,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:31:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:35,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:35,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:35,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:35,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:35,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:35,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:35,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:35,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:35,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:35,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:35,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:35,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:35,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:35,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:35,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:35,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:35,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:35,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:35,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:35,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:35,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:35,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:35,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:35,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:35,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:35,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:35,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:35,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:35,141 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 12:31:35,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291030807] [2020-10-29 12:31:35,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:35,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:31:35,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645821048] [2020-10-29 12:31:35,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:31:35,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:35,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:31:35,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:35,143 INFO L87 Difference]: Start difference. First operand 6288 states and 8792 transitions. Second operand 15 states. [2020-10-29 12:31:35,652 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-29 12:31:35,909 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:36,701 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-29 12:31:36,883 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-29 12:31:37,117 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:37,651 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-29 12:31:37,853 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:38,052 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:38,295 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:38,673 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-29 12:31:38,904 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:39,139 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-29 12:31:39,314 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-29 12:31:39,498 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:39,724 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:39,987 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:40,635 INFO L93 Difference]: Finished difference Result 14613 states and 20308 transitions. [2020-10-29 12:31:40,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:31:40,635 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-29 12:31:40,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:40,674 INFO L225 Difference]: With dead ends: 14613 [2020-10-29 12:31:40,675 INFO L226 Difference]: Without dead ends: 8471 [2020-10-29 12:31:40,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 12:31:40,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8471 states. [2020-10-29 12:31:41,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8471 to 6197. [2020-10-29 12:31:41,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6197 states. [2020-10-29 12:31:41,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6197 states to 6197 states and 8670 transitions. [2020-10-29 12:31:41,406 INFO L78 Accepts]: Start accepts. Automaton has 6197 states and 8670 transitions. Word has length 100 [2020-10-29 12:31:41,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:41,406 INFO L481 AbstractCegarLoop]: Abstraction has 6197 states and 8670 transitions. [2020-10-29 12:31:41,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:31:41,406 INFO L276 IsEmpty]: Start isEmpty. Operand 6197 states and 8670 transitions. [2020-10-29 12:31:41,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:31:41,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:41,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:31:41,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:31:41,409 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:41,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:41,409 INFO L82 PathProgramCache]: Analyzing trace with hash -279886106, now seen corresponding path program 1 times [2020-10-29 12:31:41,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:41,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175513260] [2020-10-29 12:31:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:42,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:46,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:31:46,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4974 [2020-10-29 12:31:46,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:31:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 12:31:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,708 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:46,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:46,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:31:46,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:46,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:31:46,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:31:46,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:46,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:31:46,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:46,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:46,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:46,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:46,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:46,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:46,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:46,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:31:46,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:31:46,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:46,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:31:46,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:31:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:46,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:31:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:46,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:46,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:46,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:46,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:46,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:46,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:46,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:46,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:46,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:46,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:46,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:46,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:46,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:46,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:46,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:47,016 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 12:31:47,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175513260] [2020-10-29 12:31:47,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:47,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:31:47,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717054795] [2020-10-29 12:31:47,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:31:47,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:47,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:31:47,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:47,018 INFO L87 Difference]: Start difference. First operand 6197 states and 8670 transitions. Second operand 15 states. [2020-10-29 12:31:47,286 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:31:47,536 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:48,067 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:31:48,498 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-29 12:31:51,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:51,072 INFO L93 Difference]: Finished difference Result 15500 states and 21637 transitions. [2020-10-29 12:31:51,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:31:51,073 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-29 12:31:51,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:51,113 INFO L225 Difference]: With dead ends: 15500 [2020-10-29 12:31:51,114 INFO L226 Difference]: Without dead ends: 9389 [2020-10-29 12:31:51,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 12:31:51,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9389 states. [2020-10-29 12:31:51,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9389 to 6107. [2020-10-29 12:31:51,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6107 states. [2020-10-29 12:31:51,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6107 states to 6107 states and 8556 transitions. [2020-10-29 12:31:51,719 INFO L78 Accepts]: Start accepts. Automaton has 6107 states and 8556 transitions. Word has length 100 [2020-10-29 12:31:51,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:51,719 INFO L481 AbstractCegarLoop]: Abstraction has 6107 states and 8556 transitions. [2020-10-29 12:31:51,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:31:51,720 INFO L276 IsEmpty]: Start isEmpty. Operand 6107 states and 8556 transitions. [2020-10-29 12:31:51,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 12:31:51,721 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:51,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:31:51,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:31:51,721 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:51,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:51,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1447555000, now seen corresponding path program 1 times [2020-10-29 12:31:51,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:51,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039670536] [2020-10-29 12:31:51,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:51,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:51,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:52,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 12:31:52,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:52,988 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:52,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:52,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:53,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:31:53,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:53,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:53,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:53,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 12:31:53,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:53,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:53,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:53,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:53,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:53,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:53,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:53,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:53,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:53,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:53,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:53,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:53,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:53,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:31:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:53,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:31:53,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:53,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:53,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:31:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:53,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:53,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:31:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:53,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:53,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:31:53,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:53,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,243 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 12:31:53,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039670536] [2020-10-29 12:31:53,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:53,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:31:53,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795942505] [2020-10-29 12:31:53,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:31:53,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:53,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:31:53,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:31:53,245 INFO L87 Difference]: Start difference. First operand 6107 states and 8556 transitions. Second operand 11 states. [2020-10-29 12:31:53,496 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:56,359 INFO L93 Difference]: Finished difference Result 17462 states and 24626 transitions. [2020-10-29 12:31:56,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:31:56,359 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-29 12:31:56,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:56,399 INFO L225 Difference]: With dead ends: 17462 [2020-10-29 12:31:56,399 INFO L226 Difference]: Without dead ends: 11492 [2020-10-29 12:31:56,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:31:56,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11492 states. [2020-10-29 12:31:57,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11492 to 11429. [2020-10-29 12:31:57,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11429 states. [2020-10-29 12:31:57,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11429 states to 11429 states and 15913 transitions. [2020-10-29 12:31:57,532 INFO L78 Accepts]: Start accepts. Automaton has 11429 states and 15913 transitions. Word has length 101 [2020-10-29 12:31:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:57,533 INFO L481 AbstractCegarLoop]: Abstraction has 11429 states and 15913 transitions. [2020-10-29 12:31:57,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:31:57,533 INFO L276 IsEmpty]: Start isEmpty. Operand 11429 states and 15913 transitions. [2020-10-29 12:31:57,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 12:31:57,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:57,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:31:57,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 12:31:57,535 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:57,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:57,535 INFO L82 PathProgramCache]: Analyzing trace with hash 468190482, now seen corresponding path program 1 times [2020-10-29 12:31:57,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:57,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [514946841] [2020-10-29 12:31:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:57,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:57,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:57,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 12:31:57,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:57,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-29 12:31:57,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:57,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:57,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:57,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 12:31:57,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:31:57,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,094 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:58,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:58,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:31:58,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:58,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:58,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:58,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:58,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:58,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:31:58,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:58,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:58,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:58,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:58,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:58,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:58,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:58,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:58,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:58,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:58,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:31:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:58,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:58,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:58,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:31:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:58,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:58,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:58,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:58,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:31:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:58,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:58,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:58,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:58,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:58,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:31:58,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:58,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:58,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:58,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:31:58,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:58,360 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 12:31:58,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [514946841] [2020-10-29 12:31:58,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:58,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:31:58,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227619227] [2020-10-29 12:31:58,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:31:58,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:58,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:31:58,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:31:58,361 INFO L87 Difference]: Start difference. First operand 11429 states and 15913 transitions. Second operand 14 states. [2020-10-29 12:31:59,757 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:31:59,996 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:32:00,277 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:32:00,527 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-29 12:32:02,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:02,196 INFO L93 Difference]: Finished difference Result 12408 states and 17958 transitions. [2020-10-29 12:32:02,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 12:32:02,197 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 101 [2020-10-29 12:32:02,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:02,248 INFO L225 Difference]: With dead ends: 12408 [2020-10-29 12:32:02,248 INFO L226 Difference]: Without dead ends: 12405 [2020-10-29 12:32:02,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-29 12:32:02,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12405 states. [2020-10-29 12:32:03,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12405 to 11609. [2020-10-29 12:32:03,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11609 states. [2020-10-29 12:32:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11609 states to 11609 states and 16077 transitions. [2020-10-29 12:32:03,475 INFO L78 Accepts]: Start accepts. Automaton has 11609 states and 16077 transitions. Word has length 101 [2020-10-29 12:32:03,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:03,476 INFO L481 AbstractCegarLoop]: Abstraction has 11609 states and 16077 transitions. [2020-10-29 12:32:03,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:32:03,476 INFO L276 IsEmpty]: Start isEmpty. Operand 11609 states and 16077 transitions. [2020-10-29 12:32:03,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 12:32:03,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:03,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:32:03,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 12:32:03,477 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:03,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:03,478 INFO L82 PathProgramCache]: Analyzing trace with hash -581620071, now seen corresponding path program 1 times [2020-10-29 12:32:03,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:03,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1122755724] [2020-10-29 12:32:03,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:03,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:03,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:03,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:08,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:08,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 12:32:08,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:32:08,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 12:32:08,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:08,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 12:32:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 12:32:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 12:32:08,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:08,755 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:32:08,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:08,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:08,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:08,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:08,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:08,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:08,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:32:08,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:08,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:32:08,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:08,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:08,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:08,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:08,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:32:08,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:08,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:32:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:08,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:08,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:08,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:08,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:32:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:08,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:08,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:08,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:32:08,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:08,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:08,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:08,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:08,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:32:08,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:08,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 12:32:08,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:08,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:32:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:08,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:08,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:08,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:08,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:32:08,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:08,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:08,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:08,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:08,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:32:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:08,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:08,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:08,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:09,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:32:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:09,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:09,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:09,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:09,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:09,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:32:09,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:09,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:09,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:09,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:09,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:09,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:09,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:32:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:09,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:09,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:09,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:09,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:09,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:32:09,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:09,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:09,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:09,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:09,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:32:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:09,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:09,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:09,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:32:09,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:09,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:09,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:32:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:32:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:09,243 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 12:32:09,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1122755724] [2020-10-29 12:32:09,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:09,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 12:32:09,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235896990] [2020-10-29 12:32:09,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 12:32:09,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:09,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 12:32:09,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:32:09,245 INFO L87 Difference]: Start difference. First operand 11609 states and 16077 transitions. Second operand 19 states. [2020-10-29 12:32:09,854 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 156 [2020-10-29 12:32:10,116 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-29 12:32:10,377 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:32:10,629 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:32:10,887 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:32:11,247 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-10-29 12:32:11,517 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-29 12:32:11,772 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-29 12:32:12,030 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-29 12:32:12,224 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-10-29 12:32:15,144 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-29 12:32:15,391 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-29 12:32:15,654 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:32:15,891 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:32:23,799 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2020-10-29 12:32:24,137 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:32:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:26,126 INFO L93 Difference]: Finished difference Result 22478 states and 33470 transitions. [2020-10-29 12:32:26,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-10-29 12:32:26,127 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 102 [2020-10-29 12:32:26,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:26,221 INFO L225 Difference]: With dead ends: 22478 [2020-10-29 12:32:26,222 INFO L226 Difference]: Without dead ends: 20799 [2020-10-29 12:32:26,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3233 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=1914, Invalid=7788, Unknown=0, NotChecked=0, Total=9702 [2020-10-29 12:32:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20799 states. [2020-10-29 12:32:28,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20799 to 17719. [2020-10-29 12:32:28,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17719 states. [2020-10-29 12:32:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17719 states to 17719 states and 24589 transitions. [2020-10-29 12:32:28,480 INFO L78 Accepts]: Start accepts. Automaton has 17719 states and 24589 transitions. Word has length 102 [2020-10-29 12:32:28,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:28,480 INFO L481 AbstractCegarLoop]: Abstraction has 17719 states and 24589 transitions. [2020-10-29 12:32:28,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 12:32:28,481 INFO L276 IsEmpty]: Start isEmpty. Operand 17719 states and 24589 transitions. [2020-10-29 12:32:28,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-29 12:32:28,482 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:28,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:32:28,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 12:32:28,482 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:28,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:28,483 INFO L82 PathProgramCache]: Analyzing trace with hash -773732392, now seen corresponding path program 1 times [2020-10-29 12:32:28,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:28,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108504335] [2020-10-29 12:32:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:28,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:28,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:28,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 12:32:29,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:32:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 834 [2020-10-29 12:32:29,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:32:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-29 12:32:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,582 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:32:29,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:29,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:29,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:29,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:29,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:29,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:29,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:32:29,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:32:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:29,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:29,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:32:29,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:29,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:29,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:32:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:32:29,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:32:29,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:32:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:32:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:29,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:32:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:29,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:32:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:29,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:29,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:29,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:29,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:32:29,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:29,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:32:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:29,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:29,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:32:29,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:29,880 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 12:32:29,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108504335] [2020-10-29 12:32:29,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:29,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:32:29,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686849542] [2020-10-29 12:32:29,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:32:29,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:29,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:32:29,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:32:29,882 INFO L87 Difference]: Start difference. First operand 17719 states and 24589 transitions. Second operand 13 states. [2020-10-29 12:32:30,153 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:32:30,900 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:32:31,467 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-29 12:32:33,766 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:32:37,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:37,397 INFO L93 Difference]: Finished difference Result 40199 states and 56421 transitions. [2020-10-29 12:32:37,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-29 12:32:37,397 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 103 [2020-10-29 12:32:37,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:37,483 INFO L225 Difference]: With dead ends: 40199 [2020-10-29 12:32:37,484 INFO L226 Difference]: Without dead ends: 25748 [2020-10-29 12:32:37,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=315, Invalid=1167, Unknown=0, NotChecked=0, Total=1482 [2020-10-29 12:32:37,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25748 states. [2020-10-29 12:32:40,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25748 to 25419. [2020-10-29 12:32:40,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25419 states. [2020-10-29 12:32:40,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25419 states to 25419 states and 35341 transitions. [2020-10-29 12:32:40,378 INFO L78 Accepts]: Start accepts. Automaton has 25419 states and 35341 transitions. Word has length 103 [2020-10-29 12:32:40,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:40,378 INFO L481 AbstractCegarLoop]: Abstraction has 25419 states and 35341 transitions. [2020-10-29 12:32:40,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:32:40,378 INFO L276 IsEmpty]: Start isEmpty. Operand 25419 states and 35341 transitions. [2020-10-29 12:32:40,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-29 12:32:40,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:40,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:32:40,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 12:32:40,380 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:40,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:40,380 INFO L82 PathProgramCache]: Analyzing trace with hash -476180479, now seen corresponding path program 1 times [2020-10-29 12:32:40,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:40,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249733025] [2020-10-29 12:32:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:40,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:40,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:40,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 12:32:41,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:32:41,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1183 [2020-10-29 12:32:41,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:32:41,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:32:41,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 12:32:41,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,853 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:32:41,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:32:41,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:32:41,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:32:41,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:32:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:32:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:32:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:41,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:32:41,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:41,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:32:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:32:41,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:32:41,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:41,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:32:41,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:32:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:42,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 12:32:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:42,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:42,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:42,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:42,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 12:32:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:42,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:42,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:42,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:42,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 12:32:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:42,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:42,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 12:32:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:42,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:42,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:42,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:42,206 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 12:32:42,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249733025] [2020-10-29 12:32:42,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:42,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:32:42,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911682103] [2020-10-29 12:32:42,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:32:42,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:42,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:32:42,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:32:42,208 INFO L87 Difference]: Start difference. First operand 25419 states and 35341 transitions. Second operand 15 states. [2020-10-29 12:32:42,712 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 153 [2020-10-29 12:32:42,965 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:32:43,707 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 155 [2020-10-29 12:32:43,968 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-10-29 12:32:44,128 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 12:32:44,333 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2020-10-29 12:32:44,536 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 12:32:44,762 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 12:32:45,000 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 12:32:45,205 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 12:32:45,516 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-29 12:32:45,713 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-29 12:32:45,968 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-29 12:32:46,228 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-29 12:32:46,529 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-29 12:32:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:49,542 INFO L93 Difference]: Finished difference Result 44843 states and 62852 transitions. [2020-10-29 12:32:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 12:32:49,543 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 104 [2020-10-29 12:32:49,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:49,652 INFO L225 Difference]: With dead ends: 44843 [2020-10-29 12:32:49,652 INFO L226 Difference]: Without dead ends: 33317 [2020-10-29 12:32:49,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 12:32:49,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33317 states. [2020-10-29 12:32:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33317 to 26822. [2020-10-29 12:32:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26822 states. [2020-10-29 12:32:52,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26822 states to 26822 states and 37373 transitions. [2020-10-29 12:32:52,544 INFO L78 Accepts]: Start accepts. Automaton has 26822 states and 37373 transitions. Word has length 104 [2020-10-29 12:32:52,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:52,544 INFO L481 AbstractCegarLoop]: Abstraction has 26822 states and 37373 transitions. [2020-10-29 12:32:52,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:32:52,544 INFO L276 IsEmpty]: Start isEmpty. Operand 26822 states and 37373 transitions. [2020-10-29 12:32:52,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 12:32:52,553 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:52,554 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, 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] [2020-10-29 12:32:52,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 12:32:52,554 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:52,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:52,554 INFO L82 PathProgramCache]: Analyzing trace with hash -888368257, now seen corresponding path program 1 times [2020-10-29 12:32:52,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:52,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [603389070] [2020-10-29 12:32:52,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:52,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:52,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:52,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:54,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:57,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-29 12:32:57,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 12:32:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 12:32:57,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:57,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:57,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:32:57,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:32:57,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-29 12:32:57,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:57,855 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:32:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:57,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:57,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:57,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:57,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:57,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:57,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:57,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:57,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:57,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:57,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:57,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:32:57,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:57,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:57,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:57,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:32:57,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:57,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:32:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:57,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:57,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:57,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:57,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:32:57,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:57,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:57,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:57,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:32:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:57,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:57,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:57,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:57,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:57,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:57,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:57,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:57,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:57,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:57,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:32:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:57,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:57,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:57,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:57,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:57,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:32:57,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:57,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:57,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:57,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:57,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:32:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:58,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:58,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:32:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:58,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:58,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:58,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:58,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:32:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:58,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:32:58,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:58,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:58,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:58,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:32:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:32:58,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 12:32:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:58,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:58,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:58,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:58,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 12:32:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:58,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:58,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-29 12:32:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:58,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:58,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-29 12:32:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:58,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:58,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:58,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 12:32:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:58,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:32:58,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:58,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:58,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 12:32:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:32:58,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:58,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:58,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:32:58,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:58,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-29 12:32:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:58,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:32:58,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:58,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:58,324 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-29 12:32:58,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [603389070] [2020-10-29 12:32:58,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:32:58,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 12:32:58,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53483409] [2020-10-29 12:32:58,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 12:32:58,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:58,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 12:32:58,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2020-10-29 12:32:58,326 INFO L87 Difference]: Start difference. First operand 26822 states and 37373 transitions. Second operand 17 states. [2020-10-29 12:32:58,651 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-29 12:32:59,223 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:33:00,009 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-29 12:33:00,213 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2020-10-29 12:33:00,526 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-29 12:33:01,383 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-29 12:33:02,466 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-29 12:33:02,688 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-10-29 12:33:02,853 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-10-29 12:33:03,262 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-29 12:33:08,243 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:33:15,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:33:15,287 INFO L93 Difference]: Finished difference Result 126000 states and 174000 transitions. [2020-10-29 12:33:15,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-29 12:33:15,288 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 152 [2020-10-29 12:33:15,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:15,777 INFO L225 Difference]: With dead ends: 126000 [2020-10-29 12:33:15,778 INFO L226 Difference]: Without dead ends: 99307 [2020-10-29 12:33:15,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=681, Invalid=2979, Unknown=0, NotChecked=0, Total=3660 [2020-10-29 12:33:15,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99307 states. [2020-10-29 12:33:26,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99307 to 92584. [2020-10-29 12:33:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92584 states. [2020-10-29 12:33:27,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92584 states to 92584 states and 127543 transitions. [2020-10-29 12:33:27,114 INFO L78 Accepts]: Start accepts. Automaton has 92584 states and 127543 transitions. Word has length 152 [2020-10-29 12:33:27,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:27,115 INFO L481 AbstractCegarLoop]: Abstraction has 92584 states and 127543 transitions. [2020-10-29 12:33:27,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 12:33:27,115 INFO L276 IsEmpty]: Start isEmpty. Operand 92584 states and 127543 transitions. [2020-10-29 12:33:27,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 12:33:27,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:27,139 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, 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] [2020-10-29 12:33:27,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 12:33:27,139 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:27,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:27,139 INFO L82 PathProgramCache]: Analyzing trace with hash 188014259, now seen corresponding path program 1 times [2020-10-29 12:33:27,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:27,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323544792] [2020-10-29 12:33:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat