/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/Problem11_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:49:25,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:49:25,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:49:25,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:49:25,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:49:25,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:49:25,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:49:25,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:49:25,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:49:25,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:49:25,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:49:25,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:49:25,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:49:25,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:49:25,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:49:25,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:49:25,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:49:25,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:49:25,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:49:25,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:49:25,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:49:25,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:49:25,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:49:25,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:49:25,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:49:25,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:49:25,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:49:25,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:49:25,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:49:25,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:49:25,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:49:25,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:49:25,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:49:25,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:49:25,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:49:25,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:49:25,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:49:25,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:49:25,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:49:25,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:49:25,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:49:25,309 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 06:49:25,363 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:49:25,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:49:25,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:49:25,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:49:25,369 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:49:25,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:49:25,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:49:25,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:49:25,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:49:25,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:49:25,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:49:25,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:49:25,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:49:25,372 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:49:25,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:49:25,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:49:25,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:49:25,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:49:25,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:49:25,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:49:25,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:49:25,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:49:25,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:49:25,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:49:25,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:49:25,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:49:25,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:49:25,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:49:25,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:49:25,375 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:49:25,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:49:25,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:49:25,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:49:25,834 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:49:25,835 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:49:25,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label41.c [2020-10-29 06:49:25,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0a38127/21250191af8a403c87220ee479be6c8e/FLAG8de85b5b0 [2020-10-29 06:49:26,888 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:49:26,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label41.c [2020-10-29 06:49:26,909 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0a38127/21250191af8a403c87220ee479be6c8e/FLAG8de85b5b0 [2020-10-29 06:49:27,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da0a38127/21250191af8a403c87220ee479be6c8e [2020-10-29 06:49:27,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:49:27,054 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:49:27,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:49:27,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:49:27,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:49:27,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:49:27" (1/1) ... [2020-10-29 06:49:27,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464bf060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:27, skipping insertion in model container [2020-10-29 06:49:27,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:49:27" (1/1) ... [2020-10-29 06:49:27,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:49:27,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:49:27,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:49:27,778 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:49:28,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:49:28,082 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:49:28,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28 WrapperNode [2020-10-29 06:49:28,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:49:28,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:49:28,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:49:28,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:49:28,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (1/1) ... [2020-10-29 06:49:28,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (1/1) ... [2020-10-29 06:49:28,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (1/1) ... [2020-10-29 06:49:28,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (1/1) ... [2020-10-29 06:49:28,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (1/1) ... [2020-10-29 06:49:28,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (1/1) ... [2020-10-29 06:49:28,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (1/1) ... [2020-10-29 06:49:28,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:49:28,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:49:28,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:49:28,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:49:28,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (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 06:49:28,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:49:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:49:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:49:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:49:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:49:28,382 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:49:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:49:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:49:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:49:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:49:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:49:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:49:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:49:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:49:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:49:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:49:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:49:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:49:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:49:30,638 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:49:30,639 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:49:30,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:49:30 BoogieIcfgContainer [2020-10-29 06:49:30,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:49:30,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:49:30,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:49:30,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:49:30,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:49:27" (1/3) ... [2020-10-29 06:49:30,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5288398b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:49:30, skipping insertion in model container [2020-10-29 06:49:30,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:49:28" (2/3) ... [2020-10-29 06:49:30,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5288398b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:49:30, skipping insertion in model container [2020-10-29 06:49:30,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:49:30" (3/3) ... [2020-10-29 06:49:30,651 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label41.c [2020-10-29 06:49:30,664 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:49:30,670 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:49:30,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:49:30,715 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:49:30,715 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:49:30,715 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:49:30,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:49:30,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:49:30,715 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:49:30,716 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:49:30,716 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:49:30,741 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-29 06:49:30,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 06:49:30,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:49:30,749 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] [2020-10-29 06:49:30,749 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:49:30,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:49:30,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1247400880, now seen corresponding path program 1 times [2020-10-29 06:49:30,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:49:30,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911266223] [2020-10-29 06:49:30,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:49:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:31,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:31,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:31,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 06:49:31,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-10-29 06:49:31,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:31,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:31,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:49:31,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:49:31,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 06:49:31,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 06:49:31,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:49:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:31,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:31,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:31,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:49:31,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:31,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 06:49:31,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:31,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:49:31,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:31,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:49:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:49:31,845 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 06:49:31,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911266223] [2020-10-29 06:49:31,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:49:31,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 06:49:31,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493926451] [2020-10-29 06:49:31,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:49:31,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:49:31,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:49:31,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:49:31,874 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 5 states. [2020-10-29 06:49:36,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:49:36,628 INFO L93 Difference]: Finished difference Result 1004 states and 1801 transitions. [2020-10-29 06:49:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:49:36,631 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-10-29 06:49:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:49:36,652 INFO L225 Difference]: With dead ends: 1004 [2020-10-29 06:49:36,652 INFO L226 Difference]: Without dead ends: 640 [2020-10-29 06:49:36,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:49:36,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2020-10-29 06:49:36,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 622. [2020-10-29 06:49:36,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-10-29 06:49:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 957 transitions. [2020-10-29 06:49:36,774 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 957 transitions. Word has length 28 [2020-10-29 06:49:36,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:49:36,775 INFO L481 AbstractCegarLoop]: Abstraction has 622 states and 957 transitions. [2020-10-29 06:49:36,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:49:36,775 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 957 transitions. [2020-10-29 06:49:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 06:49:36,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:49:36,781 INFO L422 BasicCegarLoop]: trace histogram [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 06:49:36,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:49:36,782 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:49:36,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:49:36,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1862497384, now seen corresponding path program 1 times [2020-10-29 06:49:36,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:49:36,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198529477] [2020-10-29 06:49:36,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:49:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:36,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:37,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:37,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:39,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:39,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 06:49:39,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:49:39,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2208 [2020-10-29 06:49:39,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:39,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:49:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:49:39,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 06:49:39,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:49:39,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:49:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:39,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:39,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:39,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:49:39,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:39,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 06:49:39,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:39,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:39,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:49:39,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:39,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:49:39,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:49:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:49:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:39,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:39,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:39,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 06:49:39,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:39,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-10-29 06:49:39,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:39,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:39,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:49:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:49:39,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:49:39,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:49:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:49:39,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198529477] [2020-10-29 06:49:39,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:49:39,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:49:39,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205493735] [2020-10-29 06:49:39,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:49:39,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:49:39,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:49:39,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:49:39,765 INFO L87 Difference]: Start difference. First operand 622 states and 957 transitions. Second operand 7 states. [2020-10-29 06:49:43,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:49:43,409 INFO L93 Difference]: Finished difference Result 1837 states and 2871 transitions. [2020-10-29 06:49:43,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:49:43,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-10-29 06:49:43,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:49:43,423 INFO L225 Difference]: With dead ends: 1837 [2020-10-29 06:49:43,423 INFO L226 Difference]: Without dead ends: 1221 [2020-10-29 06:49:43,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:49:43,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2020-10-29 06:49:43,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1010. [2020-10-29 06:49:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1010 states. [2020-10-29 06:49:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1374 transitions. [2020-10-29 06:49:43,530 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1374 transitions. Word has length 102 [2020-10-29 06:49:43,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:49:43,531 INFO L481 AbstractCegarLoop]: Abstraction has 1010 states and 1374 transitions. [2020-10-29 06:49:43,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:49:43,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1374 transitions. [2020-10-29 06:49:43,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-10-29 06:49:43,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:49:43,549 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:43,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:49:43,549 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:49:43,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:49:43,550 INFO L82 PathProgramCache]: Analyzing trace with hash -130925538, now seen corresponding path program 1 times [2020-10-29 06:49:43,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:49:43,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1367692661] [2020-10-29 06:49:43,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:49:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:43,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:43,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:45,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:46,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:46,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-29 06:49:46,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:49:46,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2813 [2020-10-29 06:49:46,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:46,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:49:46,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-29 06:49:46,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:49:46,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:46,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:49:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:46,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:46,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:46,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:49:46,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:46,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:49:46,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:46,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:49:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:46,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:49:46,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:46,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:49:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:46,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:46,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:46,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:49:46,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:46,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-29 06:49:46,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:46,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:46,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:49:46,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:46,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 06:49:46,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:46,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:49:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:46,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:47,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:47,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 06:49:47,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 06:49:47,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:47,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:47,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:49:47,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:49:47,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:49:47,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:49:47,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1367692661] [2020-10-29 06:49:47,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:49:47,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:49:47,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185845973] [2020-10-29 06:49:47,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:49:47,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:49:47,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:49:47,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:49:47,389 INFO L87 Difference]: Start difference. First operand 1010 states and 1374 transitions. Second operand 7 states. [2020-10-29 06:49:51,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:49:51,083 INFO L93 Difference]: Finished difference Result 2618 states and 3754 transitions. [2020-10-29 06:49:51,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:49:51,083 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-10-29 06:49:51,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:49:51,095 INFO L225 Difference]: With dead ends: 2618 [2020-10-29 06:49:51,096 INFO L226 Difference]: Without dead ends: 1802 [2020-10-29 06:49:51,099 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:49:51,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2020-10-29 06:49:51,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1408. [2020-10-29 06:49:51,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2020-10-29 06:49:51,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1836 transitions. [2020-10-29 06:49:51,157 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1836 transitions. Word has length 218 [2020-10-29 06:49:51,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:49:51,158 INFO L481 AbstractCegarLoop]: Abstraction has 1408 states and 1836 transitions. [2020-10-29 06:49:51,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:49:51,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1836 transitions. [2020-10-29 06:49:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-29 06:49:51,162 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:49:51,163 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 06:49:51,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:49:51,163 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:49:51,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:49:51,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1915624694, now seen corresponding path program 1 times [2020-10-29 06:49:51,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:49:51,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399881441] [2020-10-29 06:49:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:49:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:51,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:51,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:52,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:52,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-29 06:49:52,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:49:52,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1262 [2020-10-29 06:49:52,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:52,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:49:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 212 [2020-10-29 06:49:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 06:49:52,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:52,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:49:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:52,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:52,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:52,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:49:52,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:52,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 06:49:52,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:52,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:49:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:52,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:49:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:49:52,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:49:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:52,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:52,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:52,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:49:52,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:52,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 06:49:52,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:52,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:49:52,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:52,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:49:52,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:52,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:49:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:52,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:52,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:52,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 06:49:52,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:52,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-29 06:49:52,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:52,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:52,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:49:52,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:52,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 06:49:52,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-10-29 06:49:53,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399881441] [2020-10-29 06:49:53,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:49:53,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:49:53,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216562411] [2020-10-29 06:49:53,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:49:53,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:49:53,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:49:53,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:49:53,021 INFO L87 Difference]: Start difference. First operand 1408 states and 1836 transitions. Second operand 5 states. [2020-10-29 06:49:56,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:49:56,368 INFO L93 Difference]: Finished difference Result 3209 states and 4324 transitions. [2020-10-29 06:49:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:49:56,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 228 [2020-10-29 06:49:56,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:49:56,387 INFO L225 Difference]: With dead ends: 3209 [2020-10-29 06:49:56,387 INFO L226 Difference]: Without dead ends: 1807 [2020-10-29 06:49:56,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:49:56,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2020-10-29 06:49:56,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1797. [2020-10-29 06:49:56,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1797 states. [2020-10-29 06:49:56,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2301 transitions. [2020-10-29 06:49:56,456 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2301 transitions. Word has length 228 [2020-10-29 06:49:56,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:49:56,457 INFO L481 AbstractCegarLoop]: Abstraction has 1797 states and 2301 transitions. [2020-10-29 06:49:56,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:49:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2301 transitions. [2020-10-29 06:49:56,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-29 06:49:56,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:49:56,463 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:49:56,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:49:56,463 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:49:56,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:49:56,464 INFO L82 PathProgramCache]: Analyzing trace with hash -267395190, now seen corresponding path program 1 times [2020-10-29 06:49:56,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:49:56,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106702112] [2020-10-29 06:49:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:49:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:56,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:56,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:57,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:58,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:58,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-29 06:49:58,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:49:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1984 [2020-10-29 06:49:58,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:58,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:49:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 06:49:58,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 06:49:58,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 31 [2020-10-29 06:49:58,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:49:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:58,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:58,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:58,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:49:58,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:58,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:49:58,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:58,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:49:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:58,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:49:58,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:49:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:58,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:58,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:58,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:49:58,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:58,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 06:49:58,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:58,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:49:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:49:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 06:49:58,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:49:58,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 06:49:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:49:58,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:49:59,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:49:59,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 06:49:59,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:49:59,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-29 06:49:59,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:49:59,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:49:59,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:49:59,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:49:59,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:49:59,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:49:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:49:59,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106702112] [2020-10-29 06:49:59,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:49:59,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:49:59,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743046024] [2020-10-29 06:49:59,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:49:59,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:49:59,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:49:59,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:49:59,238 INFO L87 Difference]: Start difference. First operand 1797 states and 2301 transitions. Second operand 7 states. [2020-10-29 06:50:03,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:50:03,977 INFO L93 Difference]: Finished difference Result 4417 states and 5916 transitions. [2020-10-29 06:50:03,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:50:03,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 228 [2020-10-29 06:50:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:50:03,998 INFO L225 Difference]: With dead ends: 4417 [2020-10-29 06:50:03,998 INFO L226 Difference]: Without dead ends: 2626 [2020-10-29 06:50:04,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:50:04,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2020-10-29 06:50:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 2407. [2020-10-29 06:50:04,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2407 states. [2020-10-29 06:50:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3051 transitions. [2020-10-29 06:50:04,084 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3051 transitions. Word has length 228 [2020-10-29 06:50:04,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:50:04,085 INFO L481 AbstractCegarLoop]: Abstraction has 2407 states and 3051 transitions. [2020-10-29 06:50:04,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:50:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3051 transitions. [2020-10-29 06:50:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-29 06:50:04,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:50:04,091 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:04,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:50:04,092 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:50:04,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:50:04,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1123321686, now seen corresponding path program 1 times [2020-10-29 06:50:04,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:50:04,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [884531231] [2020-10-29 06:50:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:50:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:04,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:04,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:05,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:07,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:08,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:08,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 06:50:08,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:50:08,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3958 [2020-10-29 06:50:08,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:08,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:08,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 06:50:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:50:08,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 240 [2020-10-29 06:50:08,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:50:08,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:50:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:08,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:08,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:08,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:50:08,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:08,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 06:50:08,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:08,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:50:08,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:08,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:50:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:08,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:08,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:08,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 06:50:08,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:08,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-29 06:50:08,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:08,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:08,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:50:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:50:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-29 06:50:08,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-29 06:50:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:08,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:08,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:08,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:50:08,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:08,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-29 06:50:08,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:08,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:50:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:50:08,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 06:50:08,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-29 06:50:09,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [884531231] [2020-10-29 06:50:09,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:50:09,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:50:09,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204333233] [2020-10-29 06:50:09,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:50:09,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:50:09,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:50:09,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:50:09,144 INFO L87 Difference]: Start difference. First operand 2407 states and 3051 transitions. Second operand 7 states. [2020-10-29 06:50:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:50:12,806 INFO L93 Difference]: Finished difference Result 6867 states and 9237 transitions. [2020-10-29 06:50:12,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:50:12,807 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-10-29 06:50:12,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:50:12,833 INFO L225 Difference]: With dead ends: 6867 [2020-10-29 06:50:12,833 INFO L226 Difference]: Without dead ends: 4466 [2020-10-29 06:50:12,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:50:12,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2020-10-29 06:50:12,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 3810. [2020-10-29 06:50:12,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3810 states. [2020-10-29 06:50:12,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 4722 transitions. [2020-10-29 06:50:12,987 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 4722 transitions. Word has length 260 [2020-10-29 06:50:12,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:50:12,988 INFO L481 AbstractCegarLoop]: Abstraction has 3810 states and 4722 transitions. [2020-10-29 06:50:12,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:50:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 4722 transitions. [2020-10-29 06:50:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2020-10-29 06:50:12,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:50:12,999 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:12,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:50:12,999 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:50:13,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:50:13,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1195825166, now seen corresponding path program 1 times [2020-10-29 06:50:13,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:50:13,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137251361] [2020-10-29 06:50:13,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:50:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:13,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:13,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:13,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:14,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:15,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:15,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:16,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:18,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:18,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-29 06:50:18,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 06:50:18,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-29 06:50:18,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:18,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 06:50:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:50:18,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 291 [2020-10-29 06:50:18,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:50:18,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:50:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:18,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:18,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:18,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:50:18,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:18,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 06:50:18,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:18,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:18,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:18,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:18,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:50:18,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:18,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:50:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:18,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:18,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:18,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:18,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:50:18,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:18,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-29 06:50:18,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:18,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:18,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:18,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:18,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 06:50:18,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:50:18,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:50:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:18,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:18,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:18,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:18,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:50:18,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:18,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-29 06:50:18,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:18,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:18,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:18,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-29 06:50:18,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:18,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-29 06:50:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:18,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:19,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:19,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:50:19,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:19,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-29 06:50:19,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:19,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:50:19,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:50:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 06:50:19,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:50:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 213 proven. 4 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 06:50:19,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137251361] [2020-10-29 06:50:19,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:50:19,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:50:19,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087170998] [2020-10-29 06:50:19,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:50:19,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:50:19,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:50:19,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:50:19,582 INFO L87 Difference]: Start difference. First operand 3810 states and 4722 transitions. Second operand 7 states. [2020-10-29 06:50:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:50:22,975 INFO L93 Difference]: Finished difference Result 8587 states and 11043 transitions. [2020-10-29 06:50:22,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:50:22,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 309 [2020-10-29 06:50:22,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:50:23,012 INFO L225 Difference]: With dead ends: 8587 [2020-10-29 06:50:23,013 INFO L226 Difference]: Without dead ends: 4783 [2020-10-29 06:50:23,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 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 06:50:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2020-10-29 06:50:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4370. [2020-10-29 06:50:23,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4370 states. [2020-10-29 06:50:23,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4370 states to 4370 states and 5431 transitions. [2020-10-29 06:50:23,156 INFO L78 Accepts]: Start accepts. Automaton has 4370 states and 5431 transitions. Word has length 309 [2020-10-29 06:50:23,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:50:23,157 INFO L481 AbstractCegarLoop]: Abstraction has 4370 states and 5431 transitions. [2020-10-29 06:50:23,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:50:23,157 INFO L276 IsEmpty]: Start isEmpty. Operand 4370 states and 5431 transitions. [2020-10-29 06:50:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-10-29 06:50:23,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:50:23,169 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:23,169 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:50:23,169 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:50:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:50:23,170 INFO L82 PathProgramCache]: Analyzing trace with hash 2029089170, now seen corresponding path program 1 times [2020-10-29 06:50:23,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:50:23,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823242447] [2020-10-29 06:50:23,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:50:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:23,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:23,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:23,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:25,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:25,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 341 [2020-10-29 06:50:25,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:50:25,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2687 [2020-10-29 06:50:25,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:25,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:25,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:50:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 224 [2020-10-29 06:50:25,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 06:50:25,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:26,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:50:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:26,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:26,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:26,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:50:26,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:26,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 06:50:26,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:26,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:26,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:50:26,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:26,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:50:26,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:26,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:50:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:26,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:26,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:26,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:50:26,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:26,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 06:50:26,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:26,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:50:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:50:26,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:26,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 06:50:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:26,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:26,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:26,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 06:50:26,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:26,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 06:50:26,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:26,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:26,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:26,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 06:50:26,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:26,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-29 06:50:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:26,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:26,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:26,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:50:26,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 06:50:26,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:26,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:50:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:50:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 06:50:26,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-29 06:50:26,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823242447] [2020-10-29 06:50:26,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:50:26,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:50:26,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318133170] [2020-10-29 06:50:26,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:50:26,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:50:26,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:50:26,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:50:26,756 INFO L87 Difference]: Start difference. First operand 4370 states and 5431 transitions. Second operand 8 states. [2020-10-29 06:50:32,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:50:32,043 INFO L93 Difference]: Finished difference Result 11097 states and 13751 transitions. [2020-10-29 06:50:32,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 06:50:32,045 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 325 [2020-10-29 06:50:32,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:50:32,083 INFO L225 Difference]: With dead ends: 11097 [2020-10-29 06:50:32,083 INFO L226 Difference]: Without dead ends: 6733 [2020-10-29 06:50:32,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 06:50:32,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6733 states. [2020-10-29 06:50:32,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6733 to 5943. [2020-10-29 06:50:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5943 states. [2020-10-29 06:50:32,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 7339 transitions. [2020-10-29 06:50:32,322 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 7339 transitions. Word has length 325 [2020-10-29 06:50:32,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:50:32,323 INFO L481 AbstractCegarLoop]: Abstraction has 5943 states and 7339 transitions. [2020-10-29 06:50:32,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:50:32,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 7339 transitions. [2020-10-29 06:50:32,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-10-29 06:50:32,337 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:50:32,338 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 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 06:50:32,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:50:32,338 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:50:32,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:50:32,339 INFO L82 PathProgramCache]: Analyzing trace with hash -2038217997, now seen corresponding path program 1 times [2020-10-29 06:50:32,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:50:32,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081750158] [2020-10-29 06:50:32,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:50:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:32,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:32,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:32,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:33,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:33,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:34,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:34,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:35,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:37,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:37,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-29 06:50:37,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 06:50:37,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 06:50:37,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:37,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:50:37,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 335 [2020-10-29 06:50:37,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:37,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:50:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:37,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:37,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:50:37,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 06:50:37,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:37,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:37,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:50:37,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:37,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:50:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:37,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:37,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:37,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:37,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:50:37,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:37,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 06:50:37,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:37,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:37,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 06:50:37,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:37,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 06:50:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:37,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:37,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:37,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:37,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 06:50:37,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:37,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 06:50:37,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:37,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:37,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 06:50:37,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:37,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-29 06:50:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:37,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:38,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:38,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:38,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-29 06:50:38,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:38,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 06:50:38,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:38,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:38,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:38,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 06:50:38,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 06:50:38,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:38,174 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-10-29 06:50:38,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081750158] [2020-10-29 06:50:38,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:50:38,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 06:50:38,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058586693] [2020-10-29 06:50:38,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:50:38,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:50:38,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:50:38,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:50:38,177 INFO L87 Difference]: Start difference. First operand 5943 states and 7339 transitions. Second operand 6 states. [2020-10-29 06:50:40,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:50:40,507 INFO L93 Difference]: Finished difference Result 11885 states and 14696 transitions. [2020-10-29 06:50:40,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:50:40,508 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 354 [2020-10-29 06:50:40,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:50:40,543 INFO L225 Difference]: With dead ends: 11885 [2020-10-29 06:50:40,543 INFO L226 Difference]: Without dead ends: 5948 [2020-10-29 06:50:40,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:50:40,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5948 states. [2020-10-29 06:50:40,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5948 to 5935. [2020-10-29 06:50:40,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5935 states. [2020-10-29 06:50:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 7324 transitions. [2020-10-29 06:50:40,736 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 7324 transitions. Word has length 354 [2020-10-29 06:50:40,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:50:40,737 INFO L481 AbstractCegarLoop]: Abstraction has 5935 states and 7324 transitions. [2020-10-29 06:50:40,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:50:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 7324 transitions. [2020-10-29 06:50:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-29 06:50:40,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:50:40,754 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 06:50:40,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:50:40,754 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:50:40,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:50:40,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1324315230, now seen corresponding path program 1 times [2020-10-29 06:50:40,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:50:40,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [939663087] [2020-10-29 06:50:40,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:50:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:40,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:41,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:42,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:42,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 376 [2020-10-29 06:50:42,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:42,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1601 [2020-10-29 06:50:42,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:42,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:50:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-29 06:50:42,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 06:50:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:42,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:50:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:42,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:42,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:42,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:50:42,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:42,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 06:50:42,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:42,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:42,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:50:42,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:42,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:50:42,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:42,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:50:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:42,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:42,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:42,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:50:42,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:42,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 06:50:42,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:42,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:50:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:42,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:50:42,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:42,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:50:42,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:42,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:42,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:42,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:50:42,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:42,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 06:50:42,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:42,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:50:42,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:42,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 06:50:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:42,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:42,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:43,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:43,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:50:43,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:43,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-29 06:50:43,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:43,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:43,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 06:50:43,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 66 proven. 9 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-10-29 06:50:43,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [939663087] [2020-10-29 06:50:43,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:50:43,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:50:43,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289275449] [2020-10-29 06:50:43,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:50:43,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:50:43,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:50:43,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:50:43,171 INFO L87 Difference]: Start difference. First operand 5935 states and 7324 transitions. Second operand 6 states. [2020-10-29 06:50:46,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:50:46,406 INFO L93 Difference]: Finished difference Result 11876 states and 14664 transitions. [2020-10-29 06:50:46,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:50:46,411 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 360 [2020-10-29 06:50:46,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:50:46,432 INFO L225 Difference]: With dead ends: 11876 [2020-10-29 06:50:46,432 INFO L226 Difference]: Without dead ends: 5947 [2020-10-29 06:50:46,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:50:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2020-10-29 06:50:46,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 5933. [2020-10-29 06:50:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5933 states. [2020-10-29 06:50:46,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5933 states to 5933 states and 7073 transitions. [2020-10-29 06:50:46,588 INFO L78 Accepts]: Start accepts. Automaton has 5933 states and 7073 transitions. Word has length 360 [2020-10-29 06:50:46,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:50:46,589 INFO L481 AbstractCegarLoop]: Abstraction has 5933 states and 7073 transitions. [2020-10-29 06:50:46,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:50:46,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5933 states and 7073 transitions. [2020-10-29 06:50:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2020-10-29 06:50:46,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:50:46,607 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 06:50:46,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:50:46,608 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:50:46,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:50:46,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1844477026, now seen corresponding path program 1 times [2020-10-29 06:50:46,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:50:46,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37601355] [2020-10-29 06:50:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:50:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:46,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:46,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:48,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:48,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 381 [2020-10-29 06:50:48,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:48,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1915 [2020-10-29 06:50:48,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:48,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:48,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:50:48,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-29 06:50:48,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:50:48,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:48,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:50:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:48,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:48,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:48,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:50:48,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:48,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:50:48,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:48,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:48,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:50:48,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:48,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:50:48,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:48,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:50:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:48,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:48,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:48,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 06:50:48,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:48,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 06:50:48,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:48,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:48,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:50:48,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:48,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:50:48,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:48,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-29 06:50:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:49,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:49,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:49,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:50:49,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:49,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 06:50:49,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:49,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:49,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:49,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:50:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:49,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 06:50:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:49,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:49,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:49,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:50:49,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:49,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 06:50:49,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:49,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:50:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:50:49,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:50:49,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:49,377 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 239 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 06:50:49,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37601355] [2020-10-29 06:50:49,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:50:49,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:50:49,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661127468] [2020-10-29 06:50:49,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:50:49,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:50:49,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:50:49,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:50:49,379 INFO L87 Difference]: Start difference. First operand 5933 states and 7073 transitions. Second operand 7 states. [2020-10-29 06:50:53,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:50:53,173 INFO L93 Difference]: Finished difference Result 13446 states and 16355 transitions. [2020-10-29 06:50:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:50:53,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 365 [2020-10-29 06:50:53,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:50:53,199 INFO L225 Difference]: With dead ends: 13446 [2020-10-29 06:50:53,199 INFO L226 Difference]: Without dead ends: 7519 [2020-10-29 06:50:53,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:50:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7519 states. [2020-10-29 06:50:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7519 to 7498. [2020-10-29 06:50:53,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7498 states. [2020-10-29 06:50:53,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 8967 transitions. [2020-10-29 06:50:53,379 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 8967 transitions. Word has length 365 [2020-10-29 06:50:53,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:50:53,380 INFO L481 AbstractCegarLoop]: Abstraction has 7498 states and 8967 transitions. [2020-10-29 06:50:53,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:50:53,381 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 8967 transitions. [2020-10-29 06:50:53,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-10-29 06:50:53,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:50:53,397 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:50:53,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:50:53,397 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:50:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:50:53,398 INFO L82 PathProgramCache]: Analyzing trace with hash -110996072, now seen corresponding path program 1 times [2020-10-29 06:50:53,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:50:53,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574795711] [2020-10-29 06:50:53,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:50:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:53,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:53,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:53,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:53,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:54,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:57,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:58,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:58,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 386 [2020-10-29 06:50:58,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 06:50:58,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 06:50:58,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:58,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:58,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 06:50:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:50:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 240 [2020-10-29 06:50:58,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:58,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:50:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:58,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:58,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:58,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:50:58,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:50:58,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:58,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:58,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:50:58,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:58,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:50:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:58,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:58,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:58,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:58,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 06:50:58,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:58,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-29 06:50:58,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:58,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:50:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:50:58,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 06:50:58,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:59,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-29 06:50:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:59,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:59,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:50:59,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:50:59,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-29 06:50:59,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:59,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 06:50:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:50:59,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:50:59,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:59,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-29 06:50:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:50:59,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:59,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:50:59,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:50:59,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 06:50:59,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:50:59,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-29 06:50:59,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:50:59,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:50:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:50:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:50:59,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 06:50:59,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:50:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 250 proven. 72 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-29 06:50:59,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574795711] [2020-10-29 06:50:59,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:50:59,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 06:50:59,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513027539] [2020-10-29 06:50:59,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 06:50:59,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:50:59,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 06:50:59,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:50:59,754 INFO L87 Difference]: Start difference. First operand 7498 states and 8967 transitions. Second operand 10 states. [2020-10-29 06:51:02,439 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 06:51:03,620 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-10-29 06:51:05,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:51:05,495 INFO L93 Difference]: Finished difference Result 16427 states and 20084 transitions. [2020-10-29 06:51:05,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 06:51:05,496 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 370 [2020-10-29 06:51:05,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:51:05,544 INFO L225 Difference]: With dead ends: 16427 [2020-10-29 06:51:05,545 INFO L226 Difference]: Without dead ends: 9299 [2020-10-29 06:51:05,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-10-29 06:51:05,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9299 states. [2020-10-29 06:51:05,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9299 to 7509. [2020-10-29 06:51:05,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7509 states. [2020-10-29 06:51:05,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7509 states to 7509 states and 8943 transitions. [2020-10-29 06:51:05,776 INFO L78 Accepts]: Start accepts. Automaton has 7509 states and 8943 transitions. Word has length 370 [2020-10-29 06:51:05,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:51:05,777 INFO L481 AbstractCegarLoop]: Abstraction has 7509 states and 8943 transitions. [2020-10-29 06:51:05,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 06:51:05,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7509 states and 8943 transitions. [2020-10-29 06:51:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-10-29 06:51:05,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:51:05,791 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:51:05,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:51:05,791 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:51:05,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:51:05,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1757256243, now seen corresponding path program 1 times [2020-10-29 06:51:05,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:51:05,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18713124] [2020-10-29 06:51:05,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:51:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:05,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:06,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:06,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:07,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:10,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 396 [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 06:51:10,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:11,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:51:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:11,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:11,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:51:11,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:11,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:51:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:11,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:11,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:11,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:51:11,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:11,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 06:51:11,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:11,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:11,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:51:11,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:11,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:51:11,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:11,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:51:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:11,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:11,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:51:11,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:11,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-29 06:51:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:11,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:11,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:11,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-29 06:51:11,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-29 06:51:11,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:11,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:51:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-29 06:51:11,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 258 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-29 06:51:11,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18713124] [2020-10-29 06:51:11,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:51:11,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:51:11,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103233292] [2020-10-29 06:51:11,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:51:11,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:51:11,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:51:11,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:51:11,641 INFO L87 Difference]: Start difference. First operand 7509 states and 8943 transitions. Second operand 7 states. [2020-10-29 06:51:15,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:51:15,708 INFO L93 Difference]: Finished difference Result 16778 states and 20472 transitions. [2020-10-29 06:51:15,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:51:15,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 380 [2020-10-29 06:51:15,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:51:15,740 INFO L225 Difference]: With dead ends: 16778 [2020-10-29 06:51:15,740 INFO L226 Difference]: Without dead ends: 9653 [2020-10-29 06:51:15,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:51:15,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9653 states. [2020-10-29 06:51:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9653 to 9635. [2020-10-29 06:51:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9635 states. [2020-10-29 06:51:16,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9635 states to 9635 states and 11712 transitions. [2020-10-29 06:51:16,018 INFO L78 Accepts]: Start accepts. Automaton has 9635 states and 11712 transitions. Word has length 380 [2020-10-29 06:51:16,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:51:16,019 INFO L481 AbstractCegarLoop]: Abstraction has 9635 states and 11712 transitions. [2020-10-29 06:51:16,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:51:16,019 INFO L276 IsEmpty]: Start isEmpty. Operand 9635 states and 11712 transitions. [2020-10-29 06:51:16,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-10-29 06:51:16,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:51:16,036 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 06:51:16,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 06:51:16,036 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:51:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:51:16,037 INFO L82 PathProgramCache]: Analyzing trace with hash 985524869, now seen corresponding path program 1 times [2020-10-29 06:51:16,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:51:16,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780244942] [2020-10-29 06:51:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:51:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:16,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:16,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:16,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:17,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:17,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-29 06:51:17,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:51:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1804 [2020-10-29 06:51:17,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:17,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 281 [2020-10-29 06:51:17,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:51:17,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:18,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:51:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:18,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:18,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:18,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:51:18,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:18,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:51:18,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:18,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:18,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:51:18,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:18,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:51:18,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:18,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:51:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:18,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:18,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:18,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:51:18,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 06:51:18,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:18,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:51:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:18,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:51:18,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:18,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:51:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:18,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:18,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:18,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 06:51:18,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:18,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 06:51:18,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:18,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:51:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:18,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-29 06:51:18,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:18,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-29 06:51:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:18,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:18,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:18,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:51:18,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:18,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 06:51:18,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:18,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:51:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:51:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:18,588 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 239 proven. 2 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-10-29 06:51:18,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780244942] [2020-10-29 06:51:18,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:51:18,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:51:18,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048590737] [2020-10-29 06:51:18,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:51:18,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:51:18,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:51:18,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:51:18,590 INFO L87 Difference]: Start difference. First operand 9635 states and 11712 transitions. Second operand 7 states. [2020-10-29 06:51:23,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:51:23,764 INFO L93 Difference]: Finished difference Result 20256 states and 24854 transitions. [2020-10-29 06:51:23,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:51:23,765 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 387 [2020-10-29 06:51:23,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:51:23,800 INFO L225 Difference]: With dead ends: 20256 [2020-10-29 06:51:23,800 INFO L226 Difference]: Without dead ends: 11005 [2020-10-29 06:51:23,816 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:51:23,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11005 states. [2020-10-29 06:51:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11005 to 10211. [2020-10-29 06:51:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10211 states. [2020-10-29 06:51:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10211 states to 10211 states and 12296 transitions. [2020-10-29 06:51:24,048 INFO L78 Accepts]: Start accepts. Automaton has 10211 states and 12296 transitions. Word has length 387 [2020-10-29 06:51:24,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:51:24,049 INFO L481 AbstractCegarLoop]: Abstraction has 10211 states and 12296 transitions. [2020-10-29 06:51:24,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:51:24,049 INFO L276 IsEmpty]: Start isEmpty. Operand 10211 states and 12296 transitions. [2020-10-29 06:51:24,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-10-29 06:51:24,065 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:51:24,065 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:51:24,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 06:51:24,065 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:51:24,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:51:24,066 INFO L82 PathProgramCache]: Analyzing trace with hash -104346936, now seen corresponding path program 1 times [2020-10-29 06:51:24,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:51:24,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300025305] [2020-10-29 06:51:24,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:51:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:24,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:24,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:25,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:26,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:29,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:29,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 407 [2020-10-29 06:51:29,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:51:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 06:51:29,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:29,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 06:51:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:51:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 373 [2020-10-29 06:51:29,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:29,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:51:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:29,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:29,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:29,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:51:29,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:29,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 06:51:29,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:29,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:29,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:51:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:29,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:51:29,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:29,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:51:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:29,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:29,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-29 06:51:29,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:29,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-29 06:51:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:29,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:29,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:29,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 06:51:29,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:29,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 06:51:29,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:29,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:29,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 06:51:29,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:51:29,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 06:51:29,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:29,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-10-29 06:51:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:30,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:30,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:30,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 06:51:30,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:30,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 06:51:30,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:30,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:30,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:30,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:51:30,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 06:51:30,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 62 proven. 13 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-10-29 06:51:30,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300025305] [2020-10-29 06:51:30,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:51:30,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:51:30,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528165701] [2020-10-29 06:51:30,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 06:51:30,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:51:30,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 06:51:30,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-29 06:51:30,304 INFO L87 Difference]: Start difference. First operand 10211 states and 12296 transitions. Second operand 9 states. [2020-10-29 06:51:30,504 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-10-29 06:51:31,555 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2020-10-29 06:51:35,459 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-10-29 06:51:35,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:51:35,995 INFO L93 Difference]: Finished difference Result 25498 states and 31009 transitions. [2020-10-29 06:51:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 06:51:35,996 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 391 [2020-10-29 06:51:35,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:51:36,045 INFO L225 Difference]: With dead ends: 25498 [2020-10-29 06:51:36,046 INFO L226 Difference]: Without dead ends: 15671 [2020-10-29 06:51:36,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-10-29 06:51:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15671 states. [2020-10-29 06:51:36,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15671 to 15069. [2020-10-29 06:51:36,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15069 states. [2020-10-29 06:51:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15069 states to 15069 states and 18036 transitions. [2020-10-29 06:51:36,378 INFO L78 Accepts]: Start accepts. Automaton has 15069 states and 18036 transitions. Word has length 391 [2020-10-29 06:51:36,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:51:36,378 INFO L481 AbstractCegarLoop]: Abstraction has 15069 states and 18036 transitions. [2020-10-29 06:51:36,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 06:51:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 15069 states and 18036 transitions. [2020-10-29 06:51:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-29 06:51:36,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:51:36,404 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 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 06:51:36,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 06:51:36,404 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:51:36,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:51:36,405 INFO L82 PathProgramCache]: Analyzing trace with hash -856832586, now seen corresponding path program 1 times [2020-10-29 06:51:36,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:51:36,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524136522] [2020-10-29 06:51:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:51:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:36,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:36,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:36,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:37,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 409 [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1493 [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 06:51:37,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:38,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:51:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:38,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:38,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:38,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:51:38,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:38,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:51:38,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:38,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:38,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:51:38,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:38,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:51:38,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:38,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:51:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:38,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:38,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:51:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-29 06:51:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:38,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 06:51:38,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:38,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-29 06:51:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:38,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:38,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:38,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 06:51:38,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:38,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 06:51:38,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:38,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:38,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:38,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:51:38,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 06:51:38,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 253 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-29 06:51:38,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524136522] [2020-10-29 06:51:38,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:51:38,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:51:38,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144910066] [2020-10-29 06:51:38,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:51:38,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:51:38,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:51:38,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:51:38,619 INFO L87 Difference]: Start difference. First operand 15069 states and 18036 transitions. Second operand 7 states. [2020-10-29 06:51:42,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:51:42,834 INFO L93 Difference]: Finished difference Result 32260 states and 38988 transitions. [2020-10-29 06:51:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:51:42,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 393 [2020-10-29 06:51:42,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:51:42,888 INFO L225 Difference]: With dead ends: 32260 [2020-10-29 06:51:42,888 INFO L226 Difference]: Without dead ends: 17575 [2020-10-29 06:51:42,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 06:51:42,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17575 states. [2020-10-29 06:51:43,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17575 to 17353. [2020-10-29 06:51:43,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17353 states. [2020-10-29 06:51:43,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17353 states to 17353 states and 21005 transitions. [2020-10-29 06:51:43,300 INFO L78 Accepts]: Start accepts. Automaton has 17353 states and 21005 transitions. Word has length 393 [2020-10-29 06:51:43,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:51:43,300 INFO L481 AbstractCegarLoop]: Abstraction has 17353 states and 21005 transitions. [2020-10-29 06:51:43,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:51:43,301 INFO L276 IsEmpty]: Start isEmpty. Operand 17353 states and 21005 transitions. [2020-10-29 06:51:43,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2020-10-29 06:51:43,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:51:43,321 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:51:43,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 06:51:43,321 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:51:43,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:51:43,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1119324124, now seen corresponding path program 1 times [2020-10-29 06:51:43,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:51:43,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652936248] [2020-10-29 06:51:43,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:51:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:43,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:43,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:43,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:44,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:44,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:45,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:48,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:48,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:48,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-10-29 06:51:48,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 06:51:48,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-29 06:51:48,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:48,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:51:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-29 06:51:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 236 [2020-10-29 06:51:48,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:48,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:51:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:48,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:48,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:48,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:51:48,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:48,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:51:48,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:48,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:51:48,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:48,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:51:48,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:48,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:51:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:48,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:48,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:48,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 06:51:48,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:48,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-29 06:51:48,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:48,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:51:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:51:48,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 06:51:48,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:48,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-29 06:51:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:48,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:48,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:51:48,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 06:51:48,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:49,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-10-29 06:51:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:49,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:49,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-29 06:51:49,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:51:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 281 proven. 79 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 06:51:49,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1652936248] [2020-10-29 06:51:49,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:51:49,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:51:49,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800114080] [2020-10-29 06:51:49,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:51:49,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:51:49,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:51:49,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:51:49,464 INFO L87 Difference]: Start difference. First operand 17353 states and 21005 transitions. Second operand 8 states. [2020-10-29 06:51:54,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:51:54,769 INFO L93 Difference]: Finished difference Result 36414 states and 45398 transitions. [2020-10-29 06:51:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:51:54,771 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 406 [2020-10-29 06:51:54,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:51:54,838 INFO L225 Difference]: With dead ends: 36414 [2020-10-29 06:51:54,838 INFO L226 Difference]: Without dead ends: 19445 [2020-10-29 06:51:54,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-29 06:51:54,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19445 states. [2020-10-29 06:51:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19445 to 18487. [2020-10-29 06:51:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18487 states. [2020-10-29 06:51:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18487 states to 18487 states and 22277 transitions. [2020-10-29 06:51:55,486 INFO L78 Accepts]: Start accepts. Automaton has 18487 states and 22277 transitions. Word has length 406 [2020-10-29 06:51:55,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:51:55,486 INFO L481 AbstractCegarLoop]: Abstraction has 18487 states and 22277 transitions. [2020-10-29 06:51:55,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:51:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 18487 states and 22277 transitions. [2020-10-29 06:51:55,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2020-10-29 06:51:55,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:51:55,513 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 06:51:55,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 06:51:55,514 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:51:55,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:51:55,515 INFO L82 PathProgramCache]: Analyzing trace with hash 120958596, now seen corresponding path program 1 times [2020-10-29 06:51:55,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:51:55,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260009580] [2020-10-29 06:51:55,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:51:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:51:55,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:55,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:56,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:51:56,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:00,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:00,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 508 [2020-10-29 06:52:00,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:52:00,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-10-29 06:52:00,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:00,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:00,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:00,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 325 [2020-10-29 06:52:00,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 06:52:00,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:00,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:52:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:00,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:00,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:00,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:52:00,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:52:00,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:00,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:00,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:00,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:52:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:00,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:00,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:00,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 06:52:00,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:00,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 06:52:00,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:00,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:00,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:00,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:00,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:00,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-29 06:52:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:01,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:01,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-29 06:52:01,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:01,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2020-10-29 06:52:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:01,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:01,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-29 06:52:01,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:01,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 06:52:01,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:01,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:01,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:52:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-29 06:52:01,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 357 proven. 2 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2020-10-29 06:52:01,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260009580] [2020-10-29 06:52:01,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:52:01,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:52:01,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284434909] [2020-10-29 06:52:01,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:52:01,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:52:01,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:52:01,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:52:01,623 INFO L87 Difference]: Start difference. First operand 18487 states and 22277 transitions. Second operand 7 states. [2020-10-29 06:52:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:52:07,027 INFO L93 Difference]: Finished difference Result 37870 states and 45788 transitions. [2020-10-29 06:52:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:52:07,028 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 492 [2020-10-29 06:52:07,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:52:07,090 INFO L225 Difference]: With dead ends: 37870 [2020-10-29 06:52:07,090 INFO L226 Difference]: Without dead ends: 22663 [2020-10-29 06:52:07,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:52:07,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22663 states. [2020-10-29 06:52:07,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22663 to 19997. [2020-10-29 06:52:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19997 states. [2020-10-29 06:52:07,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19997 states to 19997 states and 23772 transitions. [2020-10-29 06:52:07,589 INFO L78 Accepts]: Start accepts. Automaton has 19997 states and 23772 transitions. Word has length 492 [2020-10-29 06:52:07,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:52:07,590 INFO L481 AbstractCegarLoop]: Abstraction has 19997 states and 23772 transitions. [2020-10-29 06:52:07,590 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:52:07,590 INFO L276 IsEmpty]: Start isEmpty. Operand 19997 states and 23772 transitions. [2020-10-29 06:52:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2020-10-29 06:52:07,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:52:07,614 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:52:07,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 06:52:07,614 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:52:07,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:52:07,614 INFO L82 PathProgramCache]: Analyzing trace with hash 39277872, now seen corresponding path program 1 times [2020-10-29 06:52:07,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:52:07,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668330699] [2020-10-29 06:52:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:52:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:07,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:07,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:08,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:12,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:12,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 515 [2020-10-29 06:52:12,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:52:12,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 06:52:12,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:12,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:12,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:12,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 346 [2020-10-29 06:52:12,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-29 06:52:12,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:12,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:52:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:12,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:12,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:12,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:12,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:52:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:12,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:12,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:12,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:52:12,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:12,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 06:52:12,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:12,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:12,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:12,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:12,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:12,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:12,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:52:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:12,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:12,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:12,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:52:12,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:12,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 06:52:12,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:12,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:12,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:12,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:12,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:12,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-29 06:52:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:13,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:13,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:13,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:52:13,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:13,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 06:52:13,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:13,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:52:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:13,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-29 06:52:13,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:13,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-29 06:52:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:13,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 06:52:13,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 411 proven. 2 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2020-10-29 06:52:13,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668330699] [2020-10-29 06:52:13,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:52:13,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:52:13,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159407162] [2020-10-29 06:52:13,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:52:13,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:52:13,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:52:13,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:52:13,615 INFO L87 Difference]: Start difference. First operand 19997 states and 23772 transitions. Second operand 7 states. [2020-10-29 06:52:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:52:17,951 INFO L93 Difference]: Finished difference Result 39585 states and 47080 transitions. [2020-10-29 06:52:17,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:52:17,952 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 497 [2020-10-29 06:52:17,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:52:18,003 INFO L225 Difference]: With dead ends: 39585 [2020-10-29 06:52:18,003 INFO L226 Difference]: Without dead ends: 22070 [2020-10-29 06:52:18,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:52:18,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22070 states. [2020-10-29 06:52:18,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22070 to 21412. [2020-10-29 06:52:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21412 states. [2020-10-29 06:52:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21412 states to 21412 states and 24867 transitions. [2020-10-29 06:52:18,472 INFO L78 Accepts]: Start accepts. Automaton has 21412 states and 24867 transitions. Word has length 497 [2020-10-29 06:52:18,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:52:18,473 INFO L481 AbstractCegarLoop]: Abstraction has 21412 states and 24867 transitions. [2020-10-29 06:52:18,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:52:18,473 INFO L276 IsEmpty]: Start isEmpty. Operand 21412 states and 24867 transitions. [2020-10-29 06:52:18,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-10-29 06:52:18,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:52:18,502 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:52:18,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 06:52:18,502 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:52:18,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:52:18,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1561381461, now seen corresponding path program 1 times [2020-10-29 06:52:18,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:52:18,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666086062] [2020-10-29 06:52:18,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:52:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:18,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:19,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:19,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:23,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:23,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-29 06:52:23,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:52:23,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 06:52:23,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:23,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 06:52:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:52:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 358 [2020-10-29 06:52:23,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:23,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:52:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:23,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:23,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:23,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:52:23,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:23,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 06:52:23,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:23,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:23,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:52:23,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:23,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:52:23,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:52:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:23,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:23,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:23,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 06:52:23,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:23,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-29 06:52:23,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:23,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:52:23,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 06:52:23,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:24,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 06:52:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:24,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:52:24,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 06:52:24,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:24,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-10-29 06:52:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:24,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:24,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:24,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:24,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:52:24,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:52:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-10-29 06:52:24,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:24,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:24,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:52:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-29 06:52:24,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:24,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2020-10-29 06:52:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:24,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:24,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:24,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:52:24,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:24,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 06:52:24,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:24,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-29 06:52:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:24,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 169 proven. 424 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2020-10-29 06:52:24,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666086062] [2020-10-29 06:52:24,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:52:24,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 06:52:24,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403838187] [2020-10-29 06:52:24,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 06:52:24,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:52:24,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 06:52:24,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:52:24,897 INFO L87 Difference]: Start difference. First operand 21412 states and 24867 transitions. Second operand 10 states. [2020-10-29 06:52:25,109 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2020-10-29 06:52:26,183 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-29 06:52:30,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:52:30,762 INFO L93 Difference]: Finished difference Result 38866 states and 46760 transitions. [2020-10-29 06:52:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 06:52:30,763 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 514 [2020-10-29 06:52:30,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:52:30,835 INFO L225 Difference]: With dead ends: 38866 [2020-10-29 06:52:30,835 INFO L226 Difference]: Without dead ends: 21895 [2020-10-29 06:52:30,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2020-10-29 06:52:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21895 states. [2020-10-29 06:52:31,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21895 to 21602. [2020-10-29 06:52:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21602 states. [2020-10-29 06:52:31,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21602 states to 21602 states and 25074 transitions. [2020-10-29 06:52:31,304 INFO L78 Accepts]: Start accepts. Automaton has 21602 states and 25074 transitions. Word has length 514 [2020-10-29 06:52:31,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:52:31,305 INFO L481 AbstractCegarLoop]: Abstraction has 21602 states and 25074 transitions. [2020-10-29 06:52:31,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 06:52:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 21602 states and 25074 transitions. [2020-10-29 06:52:31,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2020-10-29 06:52:31,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:52:31,332 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 06:52:31,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 06:52:31,332 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:52:31,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:52:31,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1982655622, now seen corresponding path program 1 times [2020-10-29 06:52:31,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:52:31,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964366682] [2020-10-29 06:52:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:52:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:31,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:31,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:31,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:33,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:36,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:36,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 557 [2020-10-29 06:52:36,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:52:36,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-29 06:52:36,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:36,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:36,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:36,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 06:52:36,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-29 06:52:36,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:36,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:52:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:36,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:36,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:36,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:52:36,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:36,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:52:36,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:36,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:36,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:36,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:36,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:52:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:36,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:36,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:36,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:52:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:36,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:36,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:36,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:52:36,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:36,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 06:52:36,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:36,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:52:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:52:36,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:36,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-29 06:52:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:36,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:36,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:36,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 06:52:36,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:36,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 06:52:36,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:36,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:36,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:36,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:52:36,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-29 06:52:36,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:37,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2020-10-29 06:52:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:37,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:37,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 286 proven. 150 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-29 06:52:37,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964366682] [2020-10-29 06:52:37,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:52:37,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:52:37,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932103178] [2020-10-29 06:52:37,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:52:37,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:52:37,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:52:37,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:52:37,421 INFO L87 Difference]: Start difference. First operand 21602 states and 25074 transitions. Second operand 7 states. [2020-10-29 06:52:42,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:52:42,180 INFO L93 Difference]: Finished difference Result 47515 states and 56118 transitions. [2020-10-29 06:52:42,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:52:42,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 539 [2020-10-29 06:52:42,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:52:42,237 INFO L225 Difference]: With dead ends: 47515 [2020-10-29 06:52:42,238 INFO L226 Difference]: Without dead ends: 26297 [2020-10-29 06:52:42,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:52:42,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26297 states. [2020-10-29 06:52:42,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26297 to 25986. [2020-10-29 06:52:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25986 states. [2020-10-29 06:52:42,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25986 states to 25986 states and 30048 transitions. [2020-10-29 06:52:42,742 INFO L78 Accepts]: Start accepts. Automaton has 25986 states and 30048 transitions. Word has length 539 [2020-10-29 06:52:42,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:52:42,743 INFO L481 AbstractCegarLoop]: Abstraction has 25986 states and 30048 transitions. [2020-10-29 06:52:42,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:52:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 25986 states and 30048 transitions. [2020-10-29 06:52:42,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2020-10-29 06:52:42,773 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:52:42,774 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 06:52:42,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 06:52:42,774 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:52:42,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:52:42,774 INFO L82 PathProgramCache]: Analyzing trace with hash -323666274, now seen corresponding path program 1 times [2020-10-29 06:52:42,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:52:42,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552284439] [2020-10-29 06:52:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:52:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:42,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:43,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:43,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:47,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:47,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 602 [2020-10-29 06:52:47,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:52:47,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 06:52:47,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:47,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 06:52:47,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 06:52:47,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:48,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:52:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:48,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:48,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:48,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:52:48,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:48,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:52:48,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:48,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:48,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:48,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:48,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:48,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:48,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:52:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:48,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:48,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:48,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:52:48,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:48,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 06:52:48,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:48,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:48,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:48,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:48,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:52:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:48,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:48,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:48,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:52:48,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:48,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 06:52:48,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:48,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:52:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:48,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:52:48,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:48,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-10-29 06:52:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:48,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:48,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:48,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:52:48,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:48,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-29 06:52:48,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:48,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:52:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:52:48,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 06:52:48,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:48,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-29 06:52:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:48,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-29 06:52:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:48,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:48,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 06:52:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:48,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:48,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 314 proven. 212 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2020-10-29 06:52:48,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552284439] [2020-10-29 06:52:48,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:52:48,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:52:48,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543673518] [2020-10-29 06:52:48,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:52:48,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:52:48,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:52:48,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:52:48,999 INFO L87 Difference]: Start difference. First operand 25986 states and 30048 transitions. Second operand 7 states. [2020-10-29 06:52:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:52:53,564 INFO L93 Difference]: Finished difference Result 53363 states and 61760 transitions. [2020-10-29 06:52:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:52:53,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 582 [2020-10-29 06:52:53,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:52:53,624 INFO L225 Difference]: With dead ends: 53363 [2020-10-29 06:52:53,624 INFO L226 Difference]: Without dead ends: 27571 [2020-10-29 06:52:53,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:52:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27571 states. [2020-10-29 06:52:54,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27571 to 27528. [2020-10-29 06:52:54,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27528 states. [2020-10-29 06:52:54,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27528 states to 27528 states and 31550 transitions. [2020-10-29 06:52:54,176 INFO L78 Accepts]: Start accepts. Automaton has 27528 states and 31550 transitions. Word has length 582 [2020-10-29 06:52:54,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:52:54,177 INFO L481 AbstractCegarLoop]: Abstraction has 27528 states and 31550 transitions. [2020-10-29 06:52:54,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:52:54,177 INFO L276 IsEmpty]: Start isEmpty. Operand 27528 states and 31550 transitions. [2020-10-29 06:52:54,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 647 [2020-10-29 06:52:54,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:52:54,221 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 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 06:52:54,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 06:52:54,221 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:52:54,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:52:54,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1701701516, now seen corresponding path program 1 times [2020-10-29 06:52:54,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:52:54,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958726096] [2020-10-29 06:52:54,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:52:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:54,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:54,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:56,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:59,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 666 [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 390 [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 247 [2020-10-29 06:52:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:59,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:52:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:59,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:59,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:59,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:52:59,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:59,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:52:59,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:59,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:59,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:59,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:59,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:59,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:59,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:52:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:59,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:59,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:59,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 06:52:59,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:59,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 06:52:59,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:59,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:59,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:59,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-29 06:52:59,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:59,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:59,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:52:59,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:59,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-29 06:52:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:59,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:52:59,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:52:59,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 06:52:59,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:52:59,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 06:52:59,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:52:59,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:52:59,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:52:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:52:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 06:52:59,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:52:59,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2020-10-29 06:52:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:52:59,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:53:00,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:53:00,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:53:00,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-29 06:53:00,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:53:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-29 06:53:00,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:53:00,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:53:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:53:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:53:00,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-29 06:53:00,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:53:00,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2020-10-29 06:53:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:53:00,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:53:00,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:53:00,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:53:00,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:53:00,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 06:53:00,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:53:00,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:53:00,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:53:00,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:53:00,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:53:00,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0