/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/Problem16_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:59:32,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:59:32,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:59:32,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:59:32,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:59:32,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:59:32,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:59:32,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:59:32,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:59:32,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:59:32,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:59:32,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:59:32,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:59:32,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:59:32,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:59:32,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:59:32,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:59:32,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:59:32,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:59:32,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:59:32,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:59:32,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:59:32,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:59:32,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:59:32,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:59:32,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:59:32,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:59:32,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:59:32,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:59:32,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:59:32,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:59:32,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:59:32,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:59:32,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:59:32,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:59:32,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:59:32,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:59:32,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:59:32,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:59:32,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:59:32,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:59:32,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 07:59:32,475 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:59:32,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:59:32,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:59:32,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:59:32,477 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:59:32,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:59:32,478 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:59:32,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:59:32,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:59:32,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:59:32,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:59:32,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:59:32,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:59:32,480 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:59:32,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:59:32,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:59:32,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:59:32,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:59:32,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:59:32,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:59:32,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:59:32,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:59:32,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:59:32,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:59:32,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:59:32,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:59:32,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:59:32,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:59:32,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:59:32,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:59:32,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:59:32,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:59:32,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:59:32,886 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:59:32,887 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:59:32,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label18.c [2020-10-29 07:59:32,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce7a4707a/cde69d6d19324dbf91cb7268a87c5353/FLAG827021459 [2020-10-29 07:59:33,821 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:59:33,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label18.c [2020-10-29 07:59:33,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce7a4707a/cde69d6d19324dbf91cb7268a87c5353/FLAG827021459 [2020-10-29 07:59:33,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ce7a4707a/cde69d6d19324dbf91cb7268a87c5353 [2020-10-29 07:59:33,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:59:33,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:59:33,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:59:33,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:59:33,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:59:33,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:59:33" (1/1) ... [2020-10-29 07:59:34,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447682be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:33, skipping insertion in model container [2020-10-29 07:59:34,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:59:33" (1/1) ... [2020-10-29 07:59:34,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:59:34,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:59:34,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:59:34,930 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:59:35,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:59:35,336 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:59:35,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35 WrapperNode [2020-10-29 07:59:35,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:59:35,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:59:35,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:59:35,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:59:35,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (1/1) ... [2020-10-29 07:59:35,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (1/1) ... [2020-10-29 07:59:35,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (1/1) ... [2020-10-29 07:59:35,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (1/1) ... [2020-10-29 07:59:35,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (1/1) ... [2020-10-29 07:59:35,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (1/1) ... [2020-10-29 07:59:35,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (1/1) ... [2020-10-29 07:59:35,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:59:35,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:59:35,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:59:35,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:59:35,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:59:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:59:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:59:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:59:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:59:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 07:59:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:59:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:59:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 07:59:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:59:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:59:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:59:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:59:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:59:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:59:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:59:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:59:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:59:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:59:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:59:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:59:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:59:38,138 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:59:38,138 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:59:38,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:59:38 BoogieIcfgContainer [2020-10-29 07:59:38,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:59:38,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:59:38,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:59:38,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:59:38,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:59:33" (1/3) ... [2020-10-29 07:59:38,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a2f4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:59:38, skipping insertion in model container [2020-10-29 07:59:38,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:59:35" (2/3) ... [2020-10-29 07:59:38,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a2f4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:59:38, skipping insertion in model container [2020-10-29 07:59:38,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:59:38" (3/3) ... [2020-10-29 07:59:38,151 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label18.c [2020-10-29 07:59:38,163 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:59:38,169 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:59:38,182 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:59:38,214 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:59:38,214 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:59:38,214 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:59:38,214 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:59:38,214 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:59:38,215 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:59:38,215 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:59:38,215 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:59:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 07:59:38,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-29 07:59:38,250 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:38,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:59:38,251 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:38,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:38,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1046264140, now seen corresponding path program 1 times [2020-10-29 07:59:38,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:38,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798371861] [2020-10-29 07:59:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:38,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:38,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:38,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-29 07:59:38,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:38,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-10-29 07:59:38,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:38,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:59:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 07:59:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:59:39,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:39,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:39,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:39,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:39,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:39,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 07:59:39,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:39,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:39,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:39,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:39,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:59:39,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798371861] [2020-10-29 07:59:39,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:59:39,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 07:59:39,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763377548] [2020-10-29 07:59:39,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 07:59:39,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:39,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 07:59:39,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 07:59:39,209 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 07:59:44,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:44,182 INFO L93 Difference]: Finished difference Result 1174 states and 2170 transitions. [2020-10-29 07:59:44,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:59:44,190 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-29 07:59:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:44,219 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 07:59:44,219 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 07:59:44,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:59:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 07:59:44,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2020-10-29 07:59:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-29 07:59:44,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1015 transitions. [2020-10-29 07:59:44,346 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1015 transitions. Word has length 14 [2020-10-29 07:59:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:44,347 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1015 transitions. [2020-10-29 07:59:44,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 07:59:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1015 transitions. [2020-10-29 07:59:44,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 07:59:44,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:44,352 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:59:44,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:59:44,353 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:44,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:44,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1057655916, now seen corresponding path program 1 times [2020-10-29 07:59:44,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:44,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543795416] [2020-10-29 07:59:44,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:44,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:44,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:45,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:45,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 07:59:45,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:45,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1329 [2020-10-29 07:59:45,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:45,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:59:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 07:59:45,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:45,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:45,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:45,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:45,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:45,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:59:45,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:45,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:45,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:45,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:46,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:46,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:46,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:59:46,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:46,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-29 07:59:46,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:46,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:46,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 07:59:46,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:59:46,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543795416] [2020-10-29 07:59:46,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:59:46,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:59:46,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149114260] [2020-10-29 07:59:46,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:46,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:46,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:46,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:46,274 INFO L87 Difference]: Start difference. First operand 693 states and 1015 transitions. Second operand 7 states. [2020-10-29 07:59:51,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:51,662 INFO L93 Difference]: Finished difference Result 2090 states and 3102 transitions. [2020-10-29 07:59:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:59:51,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-29 07:59:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:51,676 INFO L225 Difference]: With dead ends: 2090 [2020-10-29 07:59:51,676 INFO L226 Difference]: Without dead ends: 1403 [2020-10-29 07:59:51,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:59:51,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2020-10-29 07:59:51,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1379. [2020-10-29 07:59:51,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2020-10-29 07:59:51,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1813 transitions. [2020-10-29 07:59:51,789 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1813 transitions. Word has length 90 [2020-10-29 07:59:51,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:51,790 INFO L481 AbstractCegarLoop]: Abstraction has 1379 states and 1813 transitions. [2020-10-29 07:59:51,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:51,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1813 transitions. [2020-10-29 07:59:51,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-29 07:59:51,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:51,809 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:59:51,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:59:51,809 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:51,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:51,812 INFO L82 PathProgramCache]: Analyzing trace with hash 558036538, now seen corresponding path program 1 times [2020-10-29 07:59:51,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:51,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624111519] [2020-10-29 07:59:51,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:51,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:52,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:52,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:53,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:55,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-29 07:59:55,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:59:55,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3164 [2020-10-29 07:59:55,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:55,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:55,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:59:55,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:55,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 07:59:55,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:55,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:55,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:55,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:55,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:55,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:59:55,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:55,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:55,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:55,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:55,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:59:55,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:55,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-29 07:59:55,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:55,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:55,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:55,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:55,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:59:55,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:55,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:59:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:55,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:55,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 07:59:55,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:55,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-29 07:59:55,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:55,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:55,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:55,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:55,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 07:59:55,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:59:55,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624111519] [2020-10-29 07:59:55,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:55,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:55,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223114996] [2020-10-29 07:59:55,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:55,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:55,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:55,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:55,782 INFO L87 Difference]: Start difference. First operand 1379 states and 1813 transitions. Second operand 7 states. [2020-10-29 08:00:01,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:01,027 INFO L93 Difference]: Finished difference Result 3485 states and 4770 transitions. [2020-10-29 08:00:01,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:00:01,031 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 177 [2020-10-29 08:00:01,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:01,043 INFO L225 Difference]: With dead ends: 3485 [2020-10-29 08:00:01,043 INFO L226 Difference]: Without dead ends: 2112 [2020-10-29 08:00:01,047 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:00:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2020-10-29 08:00:01,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 2083. [2020-10-29 08:00:01,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2083 states. [2020-10-29 08:00:01,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2688 transitions. [2020-10-29 08:00:01,121 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2688 transitions. Word has length 177 [2020-10-29 08:00:01,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:01,122 INFO L481 AbstractCegarLoop]: Abstraction has 2083 states and 2688 transitions. [2020-10-29 08:00:01,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:01,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2688 transitions. [2020-10-29 08:00:01,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-29 08:00:01,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:01,127 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:01,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:00:01,127 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:01,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:01,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1049065140, now seen corresponding path program 1 times [2020-10-29 08:00:01,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:01,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1723347715] [2020-10-29 08:00:01,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:01,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:01,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:01,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:01,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-29 08:00:04,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:04,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2832 [2020-10-29 08:00:04,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 08:00:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-29 08:00:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:04,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:04,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:00:04,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:04,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:00:04,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:04,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-29 08:00:04,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:00:04,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:04,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:00:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:04,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:04,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:04,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:00:04,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 458 [2020-10-29 08:00:04,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:04,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:00:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 08:00:05,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1723347715] [2020-10-29 08:00:05,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:05,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:05,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784202284] [2020-10-29 08:00:05,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:05,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:05,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:05,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:05,124 INFO L87 Difference]: Start difference. First operand 2083 states and 2688 transitions. Second operand 7 states. [2020-10-29 08:00:14,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:14,843 INFO L93 Difference]: Finished difference Result 5554 states and 7132 transitions. [2020-10-29 08:00:14,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:00:14,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-10-29 08:00:14,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:14,866 INFO L225 Difference]: With dead ends: 5554 [2020-10-29 08:00:14,867 INFO L226 Difference]: Without dead ends: 3477 [2020-10-29 08:00:14,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:00:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2020-10-29 08:00:14,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3122. [2020-10-29 08:00:14,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3122 states. [2020-10-29 08:00:14,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 3975 transitions. [2020-10-29 08:00:14,997 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 3975 transitions. Word has length 240 [2020-10-29 08:00:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:15,000 INFO L481 AbstractCegarLoop]: Abstraction has 3122 states and 3975 transitions. [2020-10-29 08:00:15,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 3975 transitions. [2020-10-29 08:00:15,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-10-29 08:00:15,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:15,014 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:15,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:00:15,015 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:15,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:15,015 INFO L82 PathProgramCache]: Analyzing trace with hash 584087980, now seen corresponding path program 1 times [2020-10-29 08:00:15,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:15,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384608798] [2020-10-29 08:00:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:15,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:15,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:16,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:20,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:20,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 460 [2020-10-29 08:00:20,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 08:00:20,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-29 08:00:20,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:20,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:00:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:00:20,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:00:20,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:20,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:20,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:20,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:20,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:20,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:20,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:00:20,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:20,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:20,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:20,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:20,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:20,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:20,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:20,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:20,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:20,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:00:20,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:20,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:00:20,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:20,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:00:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:00:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:20,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:20,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:20,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:20,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:00:20,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:20,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-29 08:00:20,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:20,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:00:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:20,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:00:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:20,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:20,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:20,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:20,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:20,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-29 08:00:20,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:20,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:20,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:00:20,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:21,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-29 08:00:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:21,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:21,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:21,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 08:00:21,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:21,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:00:21,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:21,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-29 08:00:21,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:21,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 208 proven. 280 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-10-29 08:00:21,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384608798] [2020-10-29 08:00:21,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:21,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 08:00:21,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500686484] [2020-10-29 08:00:21,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 08:00:21,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:21,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 08:00:21,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-29 08:00:21,774 INFO L87 Difference]: Start difference. First operand 3122 states and 3975 transitions. Second operand 9 states. [2020-10-29 08:00:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:30,437 INFO L93 Difference]: Finished difference Result 8005 states and 10277 transitions. [2020-10-29 08:00:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:00:30,442 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 442 [2020-10-29 08:00:30,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:30,466 INFO L225 Difference]: With dead ends: 8005 [2020-10-29 08:00:30,466 INFO L226 Difference]: Without dead ends: 4508 [2020-10-29 08:00:30,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-29 08:00:30,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2020-10-29 08:00:30,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 3813. [2020-10-29 08:00:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3813 states. [2020-10-29 08:00:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3813 states to 3813 states and 4139 transitions. [2020-10-29 08:00:30,608 INFO L78 Accepts]: Start accepts. Automaton has 3813 states and 4139 transitions. Word has length 442 [2020-10-29 08:00:30,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:30,609 INFO L481 AbstractCegarLoop]: Abstraction has 3813 states and 4139 transitions. [2020-10-29 08:00:30,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 08:00:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3813 states and 4139 transitions. [2020-10-29 08:00:30,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2020-10-29 08:00:30,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:30,632 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:00:30,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:00:30,633 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:30,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1553038432, now seen corresponding path program 1 times [2020-10-29 08:00:30,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:30,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025516556] [2020-10-29 08:00:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:31,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:33,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:35,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:35,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 686 [2020-10-29 08:00:35,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:35,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-29 08:00:35,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:35,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:35,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:35,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:00:35,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:00:35,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:35,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:35,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:35,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:35,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:35,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:35,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:00:35,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:35,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:35,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:35,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:36,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:36,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:36,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:00:36,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:36,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 08:00:36,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:36,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:36,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:00:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:36,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:00:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:36,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:36,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:36,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:36,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:36,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-29 08:00:36,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:36,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:36,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:00:36,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:36,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:00:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:36,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:36,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:36,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:36,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:36,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:00:36,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:36,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:36,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:00:36,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:36,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:36,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:00:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:36,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:36,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:36,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:36,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:36,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:00:36,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:36,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:36,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:00:36,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:36,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:36,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:00:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:36,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:36,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:36,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 08:00:36,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:36,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 08:00:36,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:36,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:36,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:36,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:00:36,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:36,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:37,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1119 backedges. 139 proven. 347 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2020-10-29 08:00:37,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025516556] [2020-10-29 08:00:37,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:37,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:37,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883298390] [2020-10-29 08:00:37,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:37,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:37,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:37,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:37,774 INFO L87 Difference]: Start difference. First operand 3813 states and 4139 transitions. Second operand 7 states. [2020-10-29 08:00:41,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:41,903 INFO L93 Difference]: Finished difference Result 10373 states and 11421 transitions. [2020-10-29 08:00:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:00:41,911 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 666 [2020-10-29 08:00:41,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:41,941 INFO L225 Difference]: With dead ends: 10373 [2020-10-29 08:00:41,942 INFO L226 Difference]: Without dead ends: 6224 [2020-10-29 08:00:41,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:00:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6224 states. [2020-10-29 08:00:42,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6224 to 6222. [2020-10-29 08:00:42,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6222 states. [2020-10-29 08:00:42,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 6731 transitions. [2020-10-29 08:00:42,121 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 6731 transitions. Word has length 666 [2020-10-29 08:00:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:42,122 INFO L481 AbstractCegarLoop]: Abstraction has 6222 states and 6731 transitions. [2020-10-29 08:00:42,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 6731 transitions. [2020-10-29 08:00:42,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 934 [2020-10-29 08:00:42,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:42,172 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 08:00:42,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:00:42,172 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:42,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:42,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1247025902, now seen corresponding path program 1 times [2020-10-29 08:00:42,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:42,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108844494] [2020-10-29 08:00:42,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:42,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:42,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:43,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:43,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:47,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 953 [2020-10-29 08:00:47,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:47,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-29 08:00:47,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:47,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:00:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:00:47,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:00:47,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:47,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:47,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:47,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:47,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:47,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:00:47,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:47,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:47,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:47,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:47,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:00:47,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:47,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:47,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:47,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:48,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:48,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:00:48,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:48,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 634 [2020-10-29 08:00:48,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:48,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:48,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:00:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:48,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:00:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:48,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:48,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:48,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:00:48,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:48,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-29 08:00:48,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:48,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:48,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:48,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:48,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:00:48,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:48,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:00:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:48,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:49,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:49,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:49,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:49,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:00:49,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:49,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:00:49,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:49,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 619 [2020-10-29 08:00:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:49,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:49,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:49,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:49,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:49,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:00:49,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:49,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:00:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:49,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 729 [2020-10-29 08:00:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:49,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:49,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:50,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 283 proven. 416 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2020-10-29 08:00:50,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108844494] [2020-10-29 08:00:50,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:50,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:50,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080765864] [2020-10-29 08:00:50,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:50,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:50,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:50,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:50,156 INFO L87 Difference]: Start difference. First operand 6222 states and 6731 transitions. Second operand 8 states. [2020-10-29 08:00:55,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:55,989 INFO L93 Difference]: Finished difference Result 13816 states and 15144 transitions. [2020-10-29 08:00:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 08:00:55,990 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 933 [2020-10-29 08:00:55,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:56,024 INFO L225 Difference]: With dead ends: 13816 [2020-10-29 08:00:56,024 INFO L226 Difference]: Without dead ends: 7591 [2020-10-29 08:00:56,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:00:56,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2020-10-29 08:00:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 6570. [2020-10-29 08:00:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6570 states. [2020-10-29 08:00:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6570 states to 6570 states and 7158 transitions. [2020-10-29 08:00:56,227 INFO L78 Accepts]: Start accepts. Automaton has 6570 states and 7158 transitions. Word has length 933 [2020-10-29 08:00:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:56,228 INFO L481 AbstractCegarLoop]: Abstraction has 6570 states and 7158 transitions. [2020-10-29 08:00:56,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 6570 states and 7158 transitions. [2020-10-29 08:00:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2020-10-29 08:00:56,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:56,323 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:56,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:00:56,323 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:56,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:56,324 INFO L82 PathProgramCache]: Analyzing trace with hash -890120276, now seen corresponding path program 1 times [2020-10-29 08:00:56,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:56,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063290896] [2020-10-29 08:00:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:56,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:56,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:57,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1114 [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 578 [2020-10-29 08:01:01,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:01:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:01,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:01,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:01,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:01,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:01,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:01,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:01,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:01,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:01,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:01,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:01,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:01,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 08:01:01,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:01,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:01,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:01,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:01,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:01,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:02,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:01:02,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:01:02,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-29 08:01:02,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:02,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-29 08:01:02,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-29 08:01:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:02,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 08:01:02,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:02,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:02,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:01:02,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 687 [2020-10-29 08:01:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:02,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:01:02,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:01:02,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 797 [2020-10-29 08:01:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:01:02,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:01:02,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:01:02,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:02,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 935 [2020-10-29 08:01:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:02,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:02,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:02,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:01:02,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:02,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:02,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:02,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2763 backedges. 424 proven. 333 refuted. 0 times theorem prover too weak. 2006 trivial. 0 not checked. [2020-10-29 08:01:03,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063290896] [2020-10-29 08:01:03,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:03,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:01:03,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462522363] [2020-10-29 08:01:03,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:01:03,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:03,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:01:03,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:01:03,691 INFO L87 Difference]: Start difference. First operand 6570 states and 7158 transitions. Second operand 8 states. [2020-10-29 08:01:09,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:09,283 INFO L93 Difference]: Finished difference Result 14837 states and 16291 transitions. [2020-10-29 08:01:09,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:01:09,284 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1090 [2020-10-29 08:01:09,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:09,317 INFO L225 Difference]: With dead ends: 14837 [2020-10-29 08:01:09,317 INFO L226 Difference]: Without dead ends: 8610 [2020-10-29 08:01:09,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:01:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8610 states. [2020-10-29 08:01:09,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8610 to 8273. [2020-10-29 08:01:09,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8273 states. [2020-10-29 08:01:09,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8273 states to 8273 states and 9057 transitions. [2020-10-29 08:01:09,519 INFO L78 Accepts]: Start accepts. Automaton has 8273 states and 9057 transitions. Word has length 1090 [2020-10-29 08:01:09,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:09,521 INFO L481 AbstractCegarLoop]: Abstraction has 8273 states and 9057 transitions. [2020-10-29 08:01:09,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:01:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8273 states and 9057 transitions. [2020-10-29 08:01:09,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2020-10-29 08:01:09,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:09,550 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:09,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:01:09,551 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:09,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:09,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1479176548, now seen corresponding path program 1 times [2020-10-29 08:01:09,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:09,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400024385] [2020-10-29 08:01:09,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:09,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:10,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:12,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:14,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1152 [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 845 [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 08:01:14,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:15,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:15,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:15,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:01:15,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:15,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:15,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:15,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:15,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:01:15,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:15,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:15,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:15,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:15,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:15,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:01:15,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:15,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:15,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:15,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:15,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:15,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:15,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:15,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:15,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:01:15,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:15,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:15,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:15,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:15,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:15,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:15,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:01:15,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:15,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:15,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:15,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:15,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:15,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:01:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:15,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:15,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:15,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:01:15,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:15,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:15,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:15,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:15,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:15,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:01:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:01:15,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 833 [2020-10-29 08:01:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:15,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:01:15,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:15,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-29 08:01:15,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:15,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:15,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:15,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:15,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:01:15,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:15,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 971 [2020-10-29 08:01:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:16,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:16,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:16,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:16,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:01:16,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:16,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:16,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:16,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:16,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:16,841 INFO L134 CoverageAnalysis]: Checked inductivity of 3163 backedges. 779 proven. 137 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2020-10-29 08:01:16,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [400024385] [2020-10-29 08:01:16,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:16,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:16,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810505472] [2020-10-29 08:01:16,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:16,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:16,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:16,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:16,844 INFO L87 Difference]: Start difference. First operand 8273 states and 9057 transitions. Second operand 7 states. [2020-10-29 08:01:20,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:20,943 INFO L93 Difference]: Finished difference Result 17927 states and 19755 transitions. [2020-10-29 08:01:20,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:01:20,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1126 [2020-10-29 08:01:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:20,979 INFO L225 Difference]: With dead ends: 17927 [2020-10-29 08:01:20,980 INFO L226 Difference]: Without dead ends: 8961 [2020-10-29 08:01:21,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:01:21,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8961 states. [2020-10-29 08:01:21,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8961 to 8937. [2020-10-29 08:01:21,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8937 states. [2020-10-29 08:01:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8937 states to 8937 states and 9447 transitions. [2020-10-29 08:01:21,191 INFO L78 Accepts]: Start accepts. Automaton has 8937 states and 9447 transitions. Word has length 1126 [2020-10-29 08:01:21,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:21,193 INFO L481 AbstractCegarLoop]: Abstraction has 8937 states and 9447 transitions. [2020-10-29 08:01:21,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8937 states and 9447 transitions. [2020-10-29 08:01:21,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1399 [2020-10-29 08:01:21,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:21,228 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:21,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:01:21,228 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:21,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:21,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1407569632, now seen corresponding path program 1 times [2020-10-29 08:01:21,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:21,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023969639] [2020-10-29 08:01:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:21,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:22,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:22,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1426 [2020-10-29 08:01:26,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:26,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5111 [2020-10-29 08:01:26,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 733 [2020-10-29 08:01:26,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:26,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:01:26,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:01:26,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:26,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:26,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:26,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:26,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:26,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:26,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:01:26,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:26,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:26,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:26,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:26,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:26,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:27,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:01:27,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:27,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:27,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:27,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:01:27,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:27,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:27,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:27,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:27,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:01:27,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:27,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:27,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:27,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:01:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:01:27,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:27,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:01:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:27,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:27,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:27,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:27,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-29 08:01:27,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:27,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:27,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 996 [2020-10-29 08:01:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:01:28,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:01:28,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:28,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:01:28,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:28,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1067 [2020-10-29 08:01:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-29 08:01:28,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:01:28,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-29 08:01:28,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:28,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:28,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1232 [2020-10-29 08:01:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:28,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:28,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:28,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:01:28,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:28,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:01:28,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:28,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:28,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:01:28,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:28,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:30,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4141 backedges. 834 proven. 389 refuted. 0 times theorem prover too weak. 2918 trivial. 0 not checked. [2020-10-29 08:01:30,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023969639] [2020-10-29 08:01:30,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:30,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:30,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819202749] [2020-10-29 08:01:30,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:30,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:30,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:30,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:30,090 INFO L87 Difference]: Start difference. First operand 8937 states and 9447 transitions. Second operand 7 states. [2020-10-29 08:01:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:34,309 INFO L93 Difference]: Finished difference Result 17876 states and 18928 transitions. [2020-10-29 08:01:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:01:34,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1398 [2020-10-29 08:01:34,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:34,339 INFO L225 Difference]: With dead ends: 17876 [2020-10-29 08:01:34,339 INFO L226 Difference]: Without dead ends: 9282 [2020-10-29 08:01:34,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:01:34,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9282 states. [2020-10-29 08:01:34,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9282 to 9274. [2020-10-29 08:01:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9274 states. [2020-10-29 08:01:34,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9274 states to 9274 states and 9790 transitions. [2020-10-29 08:01:34,535 INFO L78 Accepts]: Start accepts. Automaton has 9274 states and 9790 transitions. Word has length 1398 [2020-10-29 08:01:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:34,538 INFO L481 AbstractCegarLoop]: Abstraction has 9274 states and 9790 transitions. [2020-10-29 08:01:34,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 9274 states and 9790 transitions. [2020-10-29 08:01:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1409 [2020-10-29 08:01:34,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:34,580 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 08:01:34,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:01:34,580 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:34,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:34,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1897725548, now seen corresponding path program 1 times [2020-10-29 08:01:34,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:34,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216904061] [2020-10-29 08:01:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:35,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:35,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:35,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:36,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:39,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:39,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1434 [2020-10-29 08:01:39,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:39,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5112 [2020-10-29 08:01:39,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:39,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:01:39,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:39,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:40,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:40,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:40,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:01:40,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:40,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:40,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:01:40,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:40,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:01:40,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:40,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:40,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:40,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:01:40,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:40,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 08:01:40,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:40,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:40,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:01:40,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:40,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:01:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:40,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:41,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:41,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:41,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-29 08:01:41,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:41,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:41,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:41,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:41,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:01:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:41,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:41,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:01:41,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:01:41,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:41,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:01:41,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:41,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:41,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2020-10-29 08:01:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:41,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:41,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-29 08:01:41,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:41,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-29 08:01:41,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:41,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-29 08:01:41,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:41,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1242 [2020-10-29 08:01:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:41,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:41,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:41,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:01:41,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:41,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 08:01:41,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:41,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:41,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:41,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:01:41,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:41,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 3891 backedges. 824 proven. 389 refuted. 0 times theorem prover too weak. 2678 trivial. 0 not checked. [2020-10-29 08:01:43,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216904061] [2020-10-29 08:01:43,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:43,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:43,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337950120] [2020-10-29 08:01:43,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:43,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:43,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:43,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:43,408 INFO L87 Difference]: Start difference. First operand 9274 states and 9790 transitions. Second operand 7 states. [2020-10-29 08:01:47,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:47,783 INFO L93 Difference]: Finished difference Result 18213 states and 19246 transitions. [2020-10-29 08:01:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:01:47,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1408 [2020-10-29 08:01:47,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:47,823 INFO L225 Difference]: With dead ends: 18213 [2020-10-29 08:01:47,824 INFO L226 Difference]: Without dead ends: 9282 [2020-10-29 08:01:47,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:01:47,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9282 states. [2020-10-29 08:01:47,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9282 to 9274. [2020-10-29 08:01:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9274 states. [2020-10-29 08:01:47,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9274 states to 9274 states and 9786 transitions. [2020-10-29 08:01:47,986 INFO L78 Accepts]: Start accepts. Automaton has 9274 states and 9786 transitions. Word has length 1408 [2020-10-29 08:01:47,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:47,988 INFO L481 AbstractCegarLoop]: Abstraction has 9274 states and 9786 transitions. [2020-10-29 08:01:47,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:47,988 INFO L276 IsEmpty]: Start isEmpty. Operand 9274 states and 9786 transitions. [2020-10-29 08:01:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2020-10-29 08:01:48,022 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:48,025 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:48,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:01:48,025 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:48,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:48,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1977746058, now seen corresponding path program 1 times [2020-10-29 08:01:48,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:48,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680933561] [2020-10-29 08:01:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:48,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:49,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:51,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1455 [2020-10-29 08:01:53,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:53,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-29 08:01:53,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:53,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 762 [2020-10-29 08:01:53,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:53,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:53,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:01:53,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:53,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:01:53,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:01:53,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:01:53,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:01:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:53,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:01:53,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:01:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:53,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:53,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:53,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:53,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:01:53,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:53,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:53,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:01:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:54,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-29 08:01:54,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:54,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:01:54,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-29 08:01:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:54,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-29 08:01:54,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:54,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:54,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2020-10-29 08:01:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:01:54,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:01:54,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:01:54,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:54,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-29 08:01:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:54,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:54,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:54,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-29 08:01:54,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:54,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:01:54,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:54,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-29 08:01:54,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:54,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:55,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1261 [2020-10-29 08:01:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:55,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:55,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:55,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4300 backedges. 863 proven. 389 refuted. 0 times theorem prover too weak. 3048 trivial. 0 not checked. [2020-10-29 08:01:57,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680933561] [2020-10-29 08:01:57,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:57,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:57,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338746875] [2020-10-29 08:01:57,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:57,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:57,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:57,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:57,167 INFO L87 Difference]: Start difference. First operand 9274 states and 9786 transitions. Second operand 7 states. [2020-10-29 08:02:01,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:01,786 INFO L93 Difference]: Finished difference Result 19571 states and 20673 transitions. [2020-10-29 08:02:01,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:02:01,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1427 [2020-10-29 08:02:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:01,818 INFO L225 Difference]: With dead ends: 19571 [2020-10-29 08:02:01,819 INFO L226 Difference]: Without dead ends: 10301 [2020-10-29 08:02:01,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:02:01,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10301 states. [2020-10-29 08:02:02,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10301 to 10291. [2020-10-29 08:02:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10291 states. [2020-10-29 08:02:02,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10291 states to 10291 states and 10820 transitions. [2020-10-29 08:02:02,025 INFO L78 Accepts]: Start accepts. Automaton has 10291 states and 10820 transitions. Word has length 1427 [2020-10-29 08:02:02,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:02,027 INFO L481 AbstractCegarLoop]: Abstraction has 10291 states and 10820 transitions. [2020-10-29 08:02:02,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 10291 states and 10820 transitions. [2020-10-29 08:02:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1585 [2020-10-29 08:02:02,070 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:02,072 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 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, 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] [2020-10-29 08:02:02,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:02:02,072 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:02,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:02,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1796913820, now seen corresponding path program 1 times [2020-10-29 08:02:02,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:02,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1887915288] [2020-10-29 08:02:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:02,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:03,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:03,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:06,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1612 [2020-10-29 08:02:07,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:02:07,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-29 08:02:07,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 880 [2020-10-29 08:02:07,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:02:07,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:07,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:07,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:07,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:07,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:07,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:07,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:07,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:07,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:07,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:07,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:07,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:07,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:02:07,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:07,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:07,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:07,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:07,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:07,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:07,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:02:07,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:07,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:07,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:07,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:07,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:02:07,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:07,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:07,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:07,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:07,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:07,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:07,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:07,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:02:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:08,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:02:08,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:08,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-29 08:02:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:08,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:08,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:02:08,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:08,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1143 [2020-10-29 08:02:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:08,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:08,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:08,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:02:08,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:08,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:02:08,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:08,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:08,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:02:08,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:08,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:08,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1214 [2020-10-29 08:02:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:08,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:09,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:09,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:09,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:09,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 08:02:09,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:09,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:09,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:09,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:02:09,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:09,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:09,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1429 [2020-10-29 08:02:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:09,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:09,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:09,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:09,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:09,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:02:09,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:09,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:09,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:09,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4663 backedges. 981 proven. 428 refuted. 0 times theorem prover too weak. 3254 trivial. 0 not checked. [2020-10-29 08:02:10,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1887915288] [2020-10-29 08:02:10,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:10,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:10,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485167519] [2020-10-29 08:02:10,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:10,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:10,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:10,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:10,537 INFO L87 Difference]: Start difference. First operand 10291 states and 10820 transitions. Second operand 7 states. [2020-10-29 08:02:15,758 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-29 08:02:16,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:16,109 INFO L93 Difference]: Finished difference Result 20917 states and 21993 transitions. [2020-10-29 08:02:16,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:02:16,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1584 [2020-10-29 08:02:16,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:16,137 INFO L225 Difference]: With dead ends: 20917 [2020-10-29 08:02:16,138 INFO L226 Difference]: Without dead ends: 10969 [2020-10-29 08:02:16,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:02:16,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10969 states. [2020-10-29 08:02:16,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10969 to 10291. [2020-10-29 08:02:16,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10291 states. [2020-10-29 08:02:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10291 states to 10291 states and 10727 transitions. [2020-10-29 08:02:16,316 INFO L78 Accepts]: Start accepts. Automaton has 10291 states and 10727 transitions. Word has length 1584 [2020-10-29 08:02:16,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:16,317 INFO L481 AbstractCegarLoop]: Abstraction has 10291 states and 10727 transitions. [2020-10-29 08:02:16,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 10291 states and 10727 transitions. [2020-10-29 08:02:16,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1626 [2020-10-29 08:02:16,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:16,360 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 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, 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 08:02:16,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:02:16,361 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:16,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:16,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1932485798, now seen corresponding path program 1 times [2020-10-29 08:02:16,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:16,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710349794] [2020-10-29 08:02:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:17,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:17,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:17,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:20,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:21,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1655 [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1271 [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:02:21,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:22,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:22,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:22,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:22,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:02:22,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:22,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:22,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:22,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:02:22,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:22,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:22,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:22,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:02:22,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:02:22,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:02:22,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:22,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:22,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:02:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:02:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:22,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 911 [2020-10-29 08:02:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:22,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:02:22,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-29 08:02:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:22,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:22,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:02:22,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 08:02:22,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:22,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 08:02:22,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:22,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1255 [2020-10-29 08:02:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:22,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:23,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:23,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:23,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:23,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-29 08:02:23,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:23,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:23,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:23,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:23,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-29 08:02:23,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:23,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1470 [2020-10-29 08:02:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:23,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:23,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:23,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:23,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:23,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:02:23,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:23,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:25,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5463 backedges. 1268 proven. 148 refuted. 0 times theorem prover too weak. 4047 trivial. 0 not checked. [2020-10-29 08:02:25,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710349794] [2020-10-29 08:02:25,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:25,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:25,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622667668] [2020-10-29 08:02:25,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:25,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:25,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:25,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:25,302 INFO L87 Difference]: Start difference. First operand 10291 states and 10727 transitions. Second operand 7 states. [2020-10-29 08:02:29,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:29,538 INFO L93 Difference]: Finished difference Result 20588 states and 21495 transitions. [2020-10-29 08:02:29,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:02:29,539 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1625 [2020-10-29 08:02:29,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:29,565 INFO L225 Difference]: With dead ends: 20588 [2020-10-29 08:02:29,565 INFO L226 Difference]: Without dead ends: 10640 [2020-10-29 08:02:29,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 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 08:02:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2020-10-29 08:02:29,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 10630. [2020-10-29 08:02:29,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10630 states. [2020-10-29 08:02:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10630 states to 10630 states and 11070 transitions. [2020-10-29 08:02:29,779 INFO L78 Accepts]: Start accepts. Automaton has 10630 states and 11070 transitions. Word has length 1625 [2020-10-29 08:02:29,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:29,781 INFO L481 AbstractCegarLoop]: Abstraction has 10630 states and 11070 transitions. [2020-10-29 08:02:29,781 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:29,781 INFO L276 IsEmpty]: Start isEmpty. Operand 10630 states and 11070 transitions. [2020-10-29 08:02:29,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1820 [2020-10-29 08:02:29,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:29,828 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 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 08:02:29,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:02:29,829 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:29,830 INFO L82 PathProgramCache]: Analyzing trace with hash 692769762, now seen corresponding path program 1 times [2020-10-29 08:02:29,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:29,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602469360] [2020-10-29 08:02:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:30,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:30,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:31,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:31,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:32,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1849 [2020-10-29 08:02:35,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:02:35,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 08:02:35,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1465 [2020-10-29 08:02:35,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:02:35,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:35,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:35,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:02:35,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:35,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:35,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:35,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:35,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:35,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:02:35,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:35,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:35,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:35,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:35,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:02:35,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:35,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:35,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:35,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:02:35,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:35,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:35,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:02:35,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:02:35,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:35,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:35,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:02:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:02:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:35,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 911 [2020-10-29 08:02:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:35,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:35,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-29 08:02:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:36,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:36,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:36,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-29 08:02:36,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:36,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-29 08:02:36,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:36,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:36,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:36,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:36,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 260 [2020-10-29 08:02:36,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:36,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1449 [2020-10-29 08:02:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:36,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:36,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-29 08:02:36,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:36,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1664 [2020-10-29 08:02:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:36,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:36,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:36,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:36,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 08:02:36,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:36,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:36,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:36,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:36,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:36,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6357 backedges. 1412 proven. 148 refuted. 0 times theorem prover too weak. 4797 trivial. 0 not checked. [2020-10-29 08:02:38,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602469360] [2020-10-29 08:02:38,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:38,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:38,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709656210] [2020-10-29 08:02:38,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:38,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:38,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:38,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:38,882 INFO L87 Difference]: Start difference. First operand 10630 states and 11070 transitions. Second operand 7 states. [2020-10-29 08:02:43,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:43,566 INFO L93 Difference]: Finished difference Result 20927 states and 21808 transitions. [2020-10-29 08:02:43,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:02:43,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1819 [2020-10-29 08:02:43,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:43,589 INFO L225 Difference]: With dead ends: 20927 [2020-10-29 08:02:43,589 INFO L226 Difference]: Without dead ends: 10640 [2020-10-29 08:02:43,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-29 08:02:43,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2020-10-29 08:02:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 10630. [2020-10-29 08:02:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10630 states. [2020-10-29 08:02:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10630 states to 10630 states and 11062 transitions. [2020-10-29 08:02:43,784 INFO L78 Accepts]: Start accepts. Automaton has 10630 states and 11062 transitions. Word has length 1819 [2020-10-29 08:02:43,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:43,786 INFO L481 AbstractCegarLoop]: Abstraction has 10630 states and 11062 transitions. [2020-10-29 08:02:43,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:43,786 INFO L276 IsEmpty]: Start isEmpty. Operand 10630 states and 11062 transitions. [2020-10-29 08:02:43,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1880 [2020-10-29 08:02:43,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:43,841 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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] [2020-10-29 08:02:43,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:02:43,842 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:43,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:43,843 INFO L82 PathProgramCache]: Analyzing trace with hash 795474338, now seen corresponding path program 1 times [2020-10-29 08:02:43,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:43,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [545248400] [2020-10-29 08:02:43,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:44,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:45,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:45,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:45,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:48,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:49,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:49,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1911 [2020-10-29 08:02:49,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:02:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-29 08:02:49,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:49,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 923 [2020-10-29 08:02:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:02:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:49,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:49,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:49,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:49,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:49,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:49,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:02:49,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:49,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:49,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:49,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:49,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:49,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:49,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:49,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:49,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-29 08:02:49,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:49,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:49,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:49,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:49,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:49,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:49,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:02:49,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:49,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:02:49,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:49,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:49,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:49,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:49,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:49,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:02:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:49,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:49,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:49,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:49,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:02:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:49,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:49,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:49,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:02:49,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:49,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:02:49,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:49,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:49,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:49,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:49,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:02:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:49,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:02:50,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:50,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-29 08:02:50,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:50,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:50,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:02:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:50,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-29 08:02:50,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:50,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 08:02:50,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:50,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:50,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-29 08:02:50,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:50,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 911 [2020-10-29 08:02:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:50,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-29 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:50,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:02:50,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:50,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-29 08:02:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:50,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:50,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1255 [2020-10-29 08:02:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:50,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-29 08:02:50,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:50,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 08:02:50,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:50,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-29 08:02:50,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:50,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:50,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1509 [2020-10-29 08:02:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:50,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:50,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:50,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:02:50,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:50,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:02:50,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:50,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:51,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1724 [2020-10-29 08:02:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:51,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:51,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:51,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:51,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:51,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:02:51,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:51,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:51,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 7061 backedges. 1072 proven. 679 refuted. 0 times theorem prover too weak. 5310 trivial. 0 not checked. [2020-10-29 08:02:53,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [545248400] [2020-10-29 08:02:53,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:53,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:53,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891216316] [2020-10-29 08:02:53,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:53,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:53,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:53,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:53,035 INFO L87 Difference]: Start difference. First operand 10630 states and 11062 transitions. Second operand 7 states. [2020-10-29 08:02:57,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:57,703 INFO L93 Difference]: Finished difference Result 23639 states and 24673 transitions. [2020-10-29 08:02:57,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:02:57,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1879 [2020-10-29 08:02:57,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:57,732 INFO L225 Difference]: With dead ends: 23639 [2020-10-29 08:02:57,732 INFO L226 Difference]: Without dead ends: 13352 [2020-10-29 08:02:57,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 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 08:02:57,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13352 states. [2020-10-29 08:02:57,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13352 to 12666. [2020-10-29 08:02:57,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12666 states. [2020-10-29 08:02:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12666 states to 12666 states and 13220 transitions. [2020-10-29 08:02:57,953 INFO L78 Accepts]: Start accepts. Automaton has 12666 states and 13220 transitions. Word has length 1879 [2020-10-29 08:02:57,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:57,955 INFO L481 AbstractCegarLoop]: Abstraction has 12666 states and 13220 transitions. [2020-10-29 08:02:57,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:57,955 INFO L276 IsEmpty]: Start isEmpty. Operand 12666 states and 13220 transitions. [2020-10-29 08:02:58,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1908 [2020-10-29 08:02:58,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:58,002 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:58,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:02:58,002 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:58,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:58,003 INFO L82 PathProgramCache]: Analyzing trace with hash -33312926, now seen corresponding path program 1 times [2020-10-29 08:02:58,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:58,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759317783] [2020-10-29 08:02:58,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:58,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:58,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:59,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking...