/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/eca-rers2012/Problem12_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:04:23,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:04:23,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:04:24,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:04:24,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:04:24,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:04:24,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:04:24,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:04:24,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:04:24,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:04:24,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:04:24,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:04:24,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:04:24,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:04:24,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:04:24,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:04:24,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:04:24,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:04:24,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:04:24,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:04:24,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:04:24,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:04:24,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:04:24,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:04:24,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:04:24,154 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:04:24,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:04:24,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:04:24,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:04:24,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:04:24,159 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:04:24,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:04:24,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:04:24,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:04:24,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:04:24,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:04:24,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:04:24,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:04:24,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:04:24,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:04:24,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:04:24,178 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 07:04:24,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:04:24,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:04:24,239 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:04:24,239 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:04:24,239 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:04:24,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:04:24,240 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:04:24,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:04:24,240 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:04:24,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:04:24,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:04:24,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:04:24,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:04:24,242 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:04:24,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:04:24,243 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:04:24,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:04:24,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:04:24,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:04:24,244 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:04:24,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:04:24,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:04:24,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:04:24,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:04:24,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:04:24,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:04:24,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:04:24,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:04:24,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:04:24,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:04:24,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:04:24,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:04:24,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:04:24,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:04:24,765 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:04:24,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label42.c [2020-10-29 07:04:24,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ec199e18/33f96ab33f1544d2895eb0aaab59f612/FLAGa0db44277 [2020-10-29 07:04:25,874 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:04:25,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label42.c [2020-10-29 07:04:25,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ec199e18/33f96ab33f1544d2895eb0aaab59f612/FLAGa0db44277 [2020-10-29 07:04:26,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8ec199e18/33f96ab33f1544d2895eb0aaab59f612 [2020-10-29 07:04:26,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:04:26,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:04:26,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:04:26,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:04:26,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:04:26,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:04:26" (1/1) ... [2020-10-29 07:04:26,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf018bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:26, skipping insertion in model container [2020-10-29 07:04:26,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:04:26" (1/1) ... [2020-10-29 07:04:26,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:04:26,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:04:28,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:04:28,208 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:04:28,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:04:28,946 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:04:28,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28 WrapperNode [2020-10-29 07:04:28,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:04:28,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:04:28,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:04:28,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:04:28,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (1/1) ... [2020-10-29 07:04:28,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (1/1) ... [2020-10-29 07:04:29,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (1/1) ... [2020-10-29 07:04:29,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (1/1) ... [2020-10-29 07:04:29,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (1/1) ... [2020-10-29 07:04:29,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (1/1) ... [2020-10-29 07:04:29,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (1/1) ... [2020-10-29 07:04:29,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:04:29,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:04:29,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:04:29,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:04:29,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (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 07:04:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:04:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:04:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:04:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:04:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 07:04:29,466 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-29 07:04:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-29 07:04:29,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:04:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:04:29,467 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 07:04:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-29 07:04:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-29 07:04:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:04:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:04:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:04:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:04:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:04:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:04:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:04:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:04:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:04:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:04:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:04:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:04:29,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:04:35,171 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:04:35,172 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:04:35,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:04:35 BoogieIcfgContainer [2020-10-29 07:04:35,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:04:35,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:04:35,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:04:35,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:04:35,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:04:26" (1/3) ... [2020-10-29 07:04:35,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2198608b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:04:35, skipping insertion in model container [2020-10-29 07:04:35,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:04:28" (2/3) ... [2020-10-29 07:04:35,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2198608b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:04:35, skipping insertion in model container [2020-10-29 07:04:35,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:04:35" (3/3) ... [2020-10-29 07:04:35,192 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem12_label42.c [2020-10-29 07:04:35,208 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:04:35,216 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:04:35,233 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:04:35,292 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:04:35,292 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:04:35,293 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:04:35,293 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:04:35,293 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:04:35,293 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:04:35,293 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:04:35,293 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:04:35,347 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states. [2020-10-29 07:04:35,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-29 07:04:35,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:04:35,357 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] [2020-10-29 07:04:35,357 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:04:35,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:04:35,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1200603020, now seen corresponding path program 1 times [2020-10-29 07:04:35,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:04:35,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822404639] [2020-10-29 07:04:35,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:04:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:04:35,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:04:36,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:04:36,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 07:04:36,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:04:36,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-10-29 07:04:36,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:04:36,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:04:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:04:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:04:36,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 07:04:36,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:04:36,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:04:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:04:36,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:04:36,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:04:36,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:04:36,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:04:36,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:04:36,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:04:36,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:04:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:04:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:04:36,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:04:36,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:04:36,591 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 07:04:36,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822404639] [2020-10-29 07:04:36,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:04:36,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 07:04:36,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687249660] [2020-10-29 07:04:36,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 07:04:36,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:04:36,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 07:04:36,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 07:04:36,629 INFO L87 Difference]: Start difference. First operand 843 states. Second operand 4 states. [2020-10-29 07:04:47,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:04:47,503 INFO L93 Difference]: Finished difference Result 2476 states and 4742 transitions. [2020-10-29 07:04:47,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:04:47,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-29 07:04:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:04:47,550 INFO L225 Difference]: With dead ends: 2476 [2020-10-29 07:04:47,551 INFO L226 Difference]: Without dead ends: 1569 [2020-10-29 07:04:47,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:04:47,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2020-10-29 07:04:47,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1554. [2020-10-29 07:04:47,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1554 states. [2020-10-29 07:04:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2522 transitions. [2020-10-29 07:04:47,766 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2522 transitions. Word has length 33 [2020-10-29 07:04:47,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:04:47,767 INFO L481 AbstractCegarLoop]: Abstraction has 1554 states and 2522 transitions. [2020-10-29 07:04:47,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 07:04:47,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2522 transitions. [2020-10-29 07:04:47,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-29 07:04:47,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:04:47,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:04:47,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:04:47,774 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:04:47,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:04:47,775 INFO L82 PathProgramCache]: Analyzing trace with hash 497538677, now seen corresponding path program 1 times [2020-10-29 07:04:47,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:04:47,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462892439] [2020-10-29 07:04:47,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:04:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:04:47,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:04:48,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:04:48,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:04:48,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 07:04:48,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:04:48,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 926 [2020-10-29 07:04:48,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:04:48,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:04:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:04:48,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:04:48,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 07:04:48,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 07:04:48,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:04:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:04:48,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:04:48,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:04:48,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:04:48,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:04:48,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:04:48,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:04:48,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:04:48,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:04:48,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:04:48,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:04:48,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:04:48,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:04:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:04:49,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:04:49,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:04:49,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 07:04:49,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:04:49,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-29 07:04:49,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:04:49,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:04:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:04:49,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:04:49,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 07:04:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:04:49,464 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 07:04:49,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462892439] [2020-10-29 07:04:49,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:04:49,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:04:49,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007613045] [2020-10-29 07:04:49,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 07:04:49,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:04:49,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 07:04:49,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:04:49,473 INFO L87 Difference]: Start difference. First operand 1554 states and 2522 transitions. Second operand 6 states. [2020-10-29 07:05:00,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:05:00,829 INFO L93 Difference]: Finished difference Result 4692 states and 7653 transitions. [2020-10-29 07:05:00,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 07:05:00,830 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2020-10-29 07:05:00,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:05:00,856 INFO L225 Difference]: With dead ends: 4692 [2020-10-29 07:05:00,856 INFO L226 Difference]: Without dead ends: 3144 [2020-10-29 07:05:00,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:05:00,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2020-10-29 07:05:01,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3126. [2020-10-29 07:05:01,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3126 states. [2020-10-29 07:05:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 4444 transitions. [2020-10-29 07:05:01,018 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 4444 transitions. Word has length 108 [2020-10-29 07:05:01,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:05:01,022 INFO L481 AbstractCegarLoop]: Abstraction has 3126 states and 4444 transitions. [2020-10-29 07:05:01,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 07:05:01,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 4444 transitions. [2020-10-29 07:05:01,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-29 07:05:01,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:05:01,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:01,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:05:01,038 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:05:01,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:05:01,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1010861693, now seen corresponding path program 1 times [2020-10-29 07:05:01,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:05:01,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791519968] [2020-10-29 07:05:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:05:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:01,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:01,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:02,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:02,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-29 07:05:02,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:05:02,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1243 [2020-10-29 07:05:02,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:02,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:02,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:05:02,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:05:02,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 07:05:02,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:05:02,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:05:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:02,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:02,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:02,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:05:02,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:05:02,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:05:02,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:02,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:05:02,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:05:02,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:05:02,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:05:02,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:05:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:02,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:02,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:02,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 07:05:02,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:05:02,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-29 07:05:02,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:02,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:05:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:05:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 07:05:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:05:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:05:02,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791519968] [2020-10-29 07:05:02,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:05:02,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:05:02,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431400951] [2020-10-29 07:05:02,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:05:02,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:05:02,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:05:02,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:05:02,892 INFO L87 Difference]: Start difference. First operand 3126 states and 4444 transitions. Second operand 7 states. [2020-10-29 07:05:19,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:05:19,195 INFO L93 Difference]: Finished difference Result 9576 states and 13794 transitions. [2020-10-29 07:05:19,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:05:19,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-29 07:05:19,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:05:19,241 INFO L225 Difference]: With dead ends: 9576 [2020-10-29 07:05:19,241 INFO L226 Difference]: Without dead ends: 6456 [2020-10-29 07:05:19,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:05:19,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6456 states. [2020-10-29 07:05:19,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6456 to 6343. [2020-10-29 07:05:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6343 states. [2020-10-29 07:05:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 8493 transitions. [2020-10-29 07:05:19,512 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 8493 transitions. Word has length 112 [2020-10-29 07:05:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:05:19,518 INFO L481 AbstractCegarLoop]: Abstraction has 6343 states and 8493 transitions. [2020-10-29 07:05:19,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:05:19,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 8493 transitions. [2020-10-29 07:05:19,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-29 07:05:19,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:05:19,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:19,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:05:19,529 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:05:19,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:05:19,530 INFO L82 PathProgramCache]: Analyzing trace with hash -276113727, now seen corresponding path program 1 times [2020-10-29 07:05:19,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:05:19,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319141179] [2020-10-29 07:05:19,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:05:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:19,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:20,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:20,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:20,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-29 07:05:20,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:05:20,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1202 [2020-10-29 07:05:20,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:20,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:05:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:05:20,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:05:20,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:05:20,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:05:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:20,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:20,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:20,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:05:20,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:05:20,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:05:20,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:20,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:20,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:05:20,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:05:20,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:05:20,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:05:20,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:05:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:21,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:21,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:21,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:05:21,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:05:21,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-29 07:05:21,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:21,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:21,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:05:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:05:21,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 07:05:21,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:05:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:05:21,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319141179] [2020-10-29 07:05:21,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:05:21,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:05:21,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421357102] [2020-10-29 07:05:21,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:05:21,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:05:21,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:05:21,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:05:21,487 INFO L87 Difference]: Start difference. First operand 6343 states and 8493 transitions. Second operand 7 states. [2020-10-29 07:05:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:05:38,719 INFO L93 Difference]: Finished difference Result 19684 states and 28727 transitions. [2020-10-29 07:05:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:05:38,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-10-29 07:05:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:05:38,852 INFO L225 Difference]: With dead ends: 19684 [2020-10-29 07:05:38,852 INFO L226 Difference]: Without dead ends: 13347 [2020-10-29 07:05:38,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:05:38,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13347 states. [2020-10-29 07:05:39,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13347 to 12982. [2020-10-29 07:05:39,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12982 states. [2020-10-29 07:05:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12982 states to 12982 states and 17266 transitions. [2020-10-29 07:05:39,499 INFO L78 Accepts]: Start accepts. Automaton has 12982 states and 17266 transitions. Word has length 146 [2020-10-29 07:05:39,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:05:39,501 INFO L481 AbstractCegarLoop]: Abstraction has 12982 states and 17266 transitions. [2020-10-29 07:05:39,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:05:39,501 INFO L276 IsEmpty]: Start isEmpty. Operand 12982 states and 17266 transitions. [2020-10-29 07:05:39,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-29 07:05:39,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:05:39,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:05:39,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:05:39,505 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:05:39,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:05:39,506 INFO L82 PathProgramCache]: Analyzing trace with hash -360257155, now seen corresponding path program 1 times [2020-10-29 07:05:39,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:05:39,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608296025] [2020-10-29 07:05:39,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:05:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:39,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:39,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:41,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:41,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-29 07:05:41,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:05:41,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2198 [2020-10-29 07:05:41,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:41,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:41,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:05:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:05:41,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:05:41,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:05:41,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:05:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:41,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:41,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:05:41,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:05:41,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:05:41,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:41,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:41,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:05:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:05:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:05:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:05:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:05:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:05:42,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:05:42,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:05:42,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-29 07:05:42,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:05:42,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-10-29 07:05:42,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:05:42,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:05:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:05:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:05:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-29 07:05:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:05:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:05:42,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608296025] [2020-10-29 07:05:42,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:05:42,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:05:42,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933958014] [2020-10-29 07:05:42,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:05:42,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:05:42,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:05:42,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:05:42,847 INFO L87 Difference]: Start difference. First operand 12982 states and 17266 transitions. Second operand 7 states. [2020-10-29 07:06:03,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:06:03,113 INFO L93 Difference]: Finished difference Result 31882 states and 44022 transitions. [2020-10-29 07:06:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:06:03,118 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-10-29 07:06:03,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:06:03,214 INFO L225 Difference]: With dead ends: 31882 [2020-10-29 07:06:03,214 INFO L226 Difference]: Without dead ends: 18906 [2020-10-29 07:06:03,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:06:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18906 states. [2020-10-29 07:06:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18906 to 18712. [2020-10-29 07:06:03,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18712 states. [2020-10-29 07:06:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18712 states to 18712 states and 23614 transitions. [2020-10-29 07:06:03,927 INFO L78 Accepts]: Start accepts. Automaton has 18712 states and 23614 transitions. Word has length 181 [2020-10-29 07:06:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:06:03,928 INFO L481 AbstractCegarLoop]: Abstraction has 18712 states and 23614 transitions. [2020-10-29 07:06:03,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:06:03,928 INFO L276 IsEmpty]: Start isEmpty. Operand 18712 states and 23614 transitions. [2020-10-29 07:06:03,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-29 07:06:03,932 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:06:03,932 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-29 07:06:03,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:06:03,933 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:06:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:06:03,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1559056030, now seen corresponding path program 1 times [2020-10-29 07:06:03,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:06:03,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710261222] [2020-10-29 07:06:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:06:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:04,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:04,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:05,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:05,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-29 07:06:05,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:06:05,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1409 [2020-10-29 07:06:05,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:05,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:06:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-29 07:06:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 07:06:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:06:05,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:06:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:05,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:05,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:05,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:06:05,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:06:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 07:06:05,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:05,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:05,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:06:05,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:06:05,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:06:05,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:06:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:05,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:05,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:05,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 07:06:05,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:06:05,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 07:06:05,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:05,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:06:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:06:05,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 07:06:05,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:05,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 07:06:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:05,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:06,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:06,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 07:06:06,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:06:06,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-29 07:06:06,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:06,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:06,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:06:06,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:06:06,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 07:06:06,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 07:06:06,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710261222] [2020-10-29 07:06:06,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:06:06,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:06:06,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645729327] [2020-10-29 07:06:06,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:06:06,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:06:06,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:06:06,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:06:06,397 INFO L87 Difference]: Start difference. First operand 18712 states and 23614 transitions. Second operand 7 states. [2020-10-29 07:06:26,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:06:26,478 INFO L93 Difference]: Finished difference Result 41326 states and 55425 transitions. [2020-10-29 07:06:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:06:26,481 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-29 07:06:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:06:26,586 INFO L225 Difference]: With dead ends: 41326 [2020-10-29 07:06:26,586 INFO L226 Difference]: Without dead ends: 18602 [2020-10-29 07:06:26,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:06:26,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18602 states. [2020-10-29 07:06:27,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18602 to 17272. [2020-10-29 07:06:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17272 states. [2020-10-29 07:06:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17272 states to 17272 states and 20761 transitions. [2020-10-29 07:06:27,298 INFO L78 Accepts]: Start accepts. Automaton has 17272 states and 20761 transitions. Word has length 208 [2020-10-29 07:06:27,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:06:27,299 INFO L481 AbstractCegarLoop]: Abstraction has 17272 states and 20761 transitions. [2020-10-29 07:06:27,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:06:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 17272 states and 20761 transitions. [2020-10-29 07:06:27,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-29 07:06:27,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:06:27,305 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:06:27,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:06:27,305 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:06:27,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:06:27,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1103328574, now seen corresponding path program 1 times [2020-10-29 07:06:27,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:06:27,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918815677] [2020-10-29 07:06:27,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:06:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:27,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:27,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:28,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:30,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:30,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:30,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-29 07:06:30,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:06:30,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3238 [2020-10-29 07:06:30,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:30,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:06:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:06:30,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 231 [2020-10-29 07:06:30,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:30,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:06:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:30,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:30,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:30,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:06:30,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:06:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:06:30,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:30,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:06:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:06:30,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:06:30,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:30,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:06:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:30,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:31,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:31,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:31,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 07:06:31,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:06:31,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-29 07:06:31,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:31,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:31,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:06:31,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:06:31,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-29 07:06:31,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:31,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 07:06:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:31,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:31,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:31,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-29 07:06:31,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:06:31,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 07:06:31,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:31,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:06:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:06:31,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 07:06:31,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:31,665 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:06:31,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918815677] [2020-10-29 07:06:31,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:06:31,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:06:31,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282248576] [2020-10-29 07:06:31,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:06:31,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:06:31,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:06:31,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:06:31,669 INFO L87 Difference]: Start difference. First operand 17272 states and 20761 transitions. Second operand 7 states. [2020-10-29 07:06:48,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:06:48,070 INFO L93 Difference]: Finished difference Result 41378 states and 52370 transitions. [2020-10-29 07:06:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:06:48,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 256 [2020-10-29 07:06:48,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:06:48,151 INFO L225 Difference]: With dead ends: 41378 [2020-10-29 07:06:48,151 INFO L226 Difference]: Without dead ends: 24112 [2020-10-29 07:06:48,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:06:48,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24112 states. [2020-10-29 07:06:48,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24112 to 23846. [2020-10-29 07:06:48,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23846 states. [2020-10-29 07:06:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23846 states to 23846 states and 28808 transitions. [2020-10-29 07:06:48,827 INFO L78 Accepts]: Start accepts. Automaton has 23846 states and 28808 transitions. Word has length 256 [2020-10-29 07:06:48,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:06:48,828 INFO L481 AbstractCegarLoop]: Abstraction has 23846 states and 28808 transitions. [2020-10-29 07:06:48,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:06:48,828 INFO L276 IsEmpty]: Start isEmpty. Operand 23846 states and 28808 transitions. [2020-10-29 07:06:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-10-29 07:06:48,833 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:06:48,833 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-29 07:06:48,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:06:48,833 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:06:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:06:48,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1090326692, now seen corresponding path program 1 times [2020-10-29 07:06:48,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:06:48,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223901304] [2020-10-29 07:06:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:06:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:48,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:49,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:50,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:50,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:50,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-10-29 07:06:50,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:06:50,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1450 [2020-10-29 07:06:50,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:50,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:06:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-29 07:06:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 07:06:50,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:50,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:06:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:50,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:50,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:50,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:06:50,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:06:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 07:06:50,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:50,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:06:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:06:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:06:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:06:50,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:06:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:50,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:50,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:50,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 07:06:50,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:06:50,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-29 07:06:50,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:50,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:06:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:06:50,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-29 07:06:50,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:50,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 07:06:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:06:50,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:06:51,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:06:51,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-29 07:06:51,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:06:51,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-29 07:06:51,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:06:51,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:06:51,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:06:51,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:06:51,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 07:06:51,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:06:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 07:06:51,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223901304] [2020-10-29 07:06:51,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:06:51,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:06:51,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353795479] [2020-10-29 07:06:51,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:06:51,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:06:51,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:06:51,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:06:51,186 INFO L87 Difference]: Start difference. First operand 23846 states and 28808 transitions. Second operand 7 states. [2020-10-29 07:07:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:07:10,897 INFO L93 Difference]: Finished difference Result 55896 states and 70463 transitions. [2020-10-29 07:07:10,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:07:10,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 267 [2020-10-29 07:07:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:07:11,010 INFO L225 Difference]: With dead ends: 55896 [2020-10-29 07:07:11,010 INFO L226 Difference]: Without dead ends: 32056 [2020-10-29 07:07:11,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:07:11,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32056 states. [2020-10-29 07:07:11,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32056 to 31099. [2020-10-29 07:07:11,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31099 states. [2020-10-29 07:07:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31099 states to 31099 states and 38569 transitions. [2020-10-29 07:07:11,803 INFO L78 Accepts]: Start accepts. Automaton has 31099 states and 38569 transitions. Word has length 267 [2020-10-29 07:07:11,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:07:11,803 INFO L481 AbstractCegarLoop]: Abstraction has 31099 states and 38569 transitions. [2020-10-29 07:07:11,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:07:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 31099 states and 38569 transitions. [2020-10-29 07:07:11,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-29 07:07:11,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:07:11,808 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-29 07:07:11,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:07:11,809 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:07:11,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:07:11,810 INFO L82 PathProgramCache]: Analyzing trace with hash -2031920740, now seen corresponding path program 1 times [2020-10-29 07:07:11,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:07:11,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794475982] [2020-10-29 07:07:11,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:07:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:07:11,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:12,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:12,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:14,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:07:14,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-29 07:07:14,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:07:14,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2404 [2020-10-29 07:07:14,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:07:14,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:07:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:07:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-10-29 07:07:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 07:07:14,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:07:14,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:07:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:07:14,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:14,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:07:14,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:07:14,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:07:14,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:07:14,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:07:14,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:07:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:07:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:07:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:07:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:07:14,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:07:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:07:14,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:14,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:07:14,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 07:07:14,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:07:14,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 07:07:14,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:07:14,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:07:14,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:07:14,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:07:14,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-29 07:07:14,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:07:14,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-29 07:07:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:07:14,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:14,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:07:14,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-29 07:07:14,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:07:14,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 07:07:14,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:07:14,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:07:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:07:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:07:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 07:07:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:07:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 136 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 07:07:15,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794475982] [2020-10-29 07:07:15,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:07:15,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:07:15,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480784306] [2020-10-29 07:07:15,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:07:15,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:07:15,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:07:15,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:07:15,107 INFO L87 Difference]: Start difference. First operand 31099 states and 38569 transitions. Second operand 7 states. [2020-10-29 07:07:16,653 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-10-29 07:07:37,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:07:37,551 INFO L93 Difference]: Finished difference Result 83460 states and 108454 transitions. [2020-10-29 07:07:37,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:07:37,554 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 271 [2020-10-29 07:07:37,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:07:37,752 INFO L225 Difference]: With dead ends: 83460 [2020-10-29 07:07:37,753 INFO L226 Difference]: Without dead ends: 52367 [2020-10-29 07:07:37,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:07:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52367 states. [2020-10-29 07:07:39,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52367 to 51175. [2020-10-29 07:07:39,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51175 states. [2020-10-29 07:07:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51175 states to 51175 states and 62585 transitions. [2020-10-29 07:07:39,230 INFO L78 Accepts]: Start accepts. Automaton has 51175 states and 62585 transitions. Word has length 271 [2020-10-29 07:07:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:07:39,231 INFO L481 AbstractCegarLoop]: Abstraction has 51175 states and 62585 transitions. [2020-10-29 07:07:39,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:07:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 51175 states and 62585 transitions. [2020-10-29 07:07:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-10-29 07:07:39,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:07:39,238 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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] [2020-10-29 07:07:39,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:07:39,239 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:07:39,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:07:39,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1175607930, now seen corresponding path program 1 times [2020-10-29 07:07:39,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:07:39,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906735085] [2020-10-29 07:07:39,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:07:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:07:39,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:40,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:07:40,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-29 07:07:40,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:07:40,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-10-29 07:07:40,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:07:40,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:07:40,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:07:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 297 [2020-10-29 07:07:40,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 07:07:40,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:07:41,052 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 07:07:41,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:07:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:07:41,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:41,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:07:41,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:07:41,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:07:41,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:07:41,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:07:41,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:07:41,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:07:41,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:07:41,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:07:41,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:07:41,361 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-10-29 07:07:41,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:07:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:07:41,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:41,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:07:41,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 07:07:41,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:07:41,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:07:41,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:07:41,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:07:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:07:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:07:41,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:07:41,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:07:41,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 07:07:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:07:41,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:07:41,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:07:41,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:07:41,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:07:41,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 07:07:41,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:07:41,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:07:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:07:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:07:41,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-29 07:07:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:07:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2020-10-29 07:07:41,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906735085] [2020-10-29 07:07:41,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:07:41,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:07:41,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153258811] [2020-10-29 07:07:41,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:07:41,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:07:41,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:07:41,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:07:41,808 INFO L87 Difference]: Start difference. First operand 51175 states and 62585 transitions. Second operand 5 states. [2020-10-29 07:07:58,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:07:58,825 INFO L93 Difference]: Finished difference Result 118681 states and 150530 transitions. [2020-10-29 07:07:58,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:07:58,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2020-10-29 07:07:58,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:07:59,061 INFO L225 Difference]: With dead ends: 118681 [2020-10-29 07:07:59,062 INFO L226 Difference]: Without dead ends: 67512 [2020-10-29 07:07:59,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:07:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67512 states. [2020-10-29 07:08:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67512 to 67478. [2020-10-29 07:08:00,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67478 states. [2020-10-29 07:08:01,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67478 states to 67478 states and 81830 transitions. [2020-10-29 07:08:01,184 INFO L78 Accepts]: Start accepts. Automaton has 67478 states and 81830 transitions. Word has length 318 [2020-10-29 07:08:01,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:08:01,184 INFO L481 AbstractCegarLoop]: Abstraction has 67478 states and 81830 transitions. [2020-10-29 07:08:01,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:08:01,184 INFO L276 IsEmpty]: Start isEmpty. Operand 67478 states and 81830 transitions. [2020-10-29 07:08:01,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-29 07:08:01,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:08:01,191 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:08:01,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:08:01,192 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:08:01,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:08:01,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1863096438, now seen corresponding path program 1 times [2020-10-29 07:08:01,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:08:01,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419792066] [2020-10-29 07:08:01,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:08:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:08:01,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:08:01,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:08:03,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:08:03,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-29 07:08:03,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:08:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1974 [2020-10-29 07:08:03,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:08:03,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:08:03,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:08:03,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-29 07:08:03,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-29 07:08:03,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:08:03,613 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-29 07:08:03,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:08:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:08:03,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:08:03,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:08:03,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:08:03,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:08:03,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:08:03,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:08:03,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:08:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:08:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:08:03,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:08:03,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:08:03,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:08:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:08:03,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:08:03,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:08:03,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 07:08:03,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:08:03,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-29 07:08:03,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:08:03,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:08:03,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:08:03,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:08:03,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-29 07:08:03,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:08:03,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-29 07:08:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:08:03,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking...