/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_label14.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:58:36,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:58:36,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:58:36,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:58:36,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:58:36,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:58:36,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:58:36,602 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:58:36,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:58:36,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:58:36,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:58:36,609 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:58:36,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:58:36,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:58:36,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:58:36,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:58:36,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:58:36,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:58:36,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:58:36,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:58:36,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:58:36,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:58:36,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:58:36,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:58:36,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:58:36,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:58:36,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:58:36,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:58:36,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:58:36,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:58:36,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:58:36,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:58:36,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:58:36,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:58:36,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:58:36,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:58:36,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:58:36,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:58:36,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:58:36,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:58:36,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:58:36,651 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 07:58:36,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:58:36,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:58:36,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:58:36,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:58:36,711 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:58:36,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:58:36,711 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:58:36,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:58:36,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:58:36,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:58:36,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:58:36,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:58:36,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:58:36,714 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:58:36,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:58:36,715 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:58:36,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:58:36,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:58:36,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:58:36,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:58:36,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:58:36,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:58:36,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:58:36,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:58:36,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:58:36,718 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:58:36,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:58:36,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:58:36,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:58:36,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:58:37,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:58:37,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:58:37,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:58:37,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:58:37,215 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:58:37,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label14.c [2020-10-29 07:58:37,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09f20e2bc/85927c682b1c4c4b9ffbeea8efcbfa7b/FLAG20e6827df [2020-10-29 07:58:38,247 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:58:38,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label14.c [2020-10-29 07:58:38,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09f20e2bc/85927c682b1c4c4b9ffbeea8efcbfa7b/FLAG20e6827df [2020-10-29 07:58:38,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09f20e2bc/85927c682b1c4c4b9ffbeea8efcbfa7b [2020-10-29 07:58:38,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:58:38,394 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:58:38,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:58:38,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:58:38,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:58:38,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:58:38" (1/1) ... [2020-10-29 07:58:38,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e8cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:38, skipping insertion in model container [2020-10-29 07:58:38,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:58:38" (1/1) ... [2020-10-29 07:58:38,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:58:38,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:58:39,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:58:39,322 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:58:39,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:58:39,589 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:58:39,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39 WrapperNode [2020-10-29 07:58:39,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:58:39,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:58:39,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:58:39,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:58:39,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (1/1) ... [2020-10-29 07:58:39,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (1/1) ... [2020-10-29 07:58:39,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (1/1) ... [2020-10-29 07:58:39,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (1/1) ... [2020-10-29 07:58:39,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (1/1) ... [2020-10-29 07:58:39,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (1/1) ... [2020-10-29 07:58:39,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (1/1) ... [2020-10-29 07:58:39,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:58:39,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:58:39,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:58:39,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:58:39,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (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 07:58:39,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:58:39,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:58:39,908 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:58:39,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:58:39,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 07:58:39,909 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:58:39,909 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:58:39,910 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 07:58:39,910 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:58:39,910 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:58:39,911 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:58:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:58:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:58:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:58:39,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:58:39,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:58:39,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:58:39,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:58:39,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:58:39,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:58:39,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:58:42,557 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:58:42,558 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:58:42,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:58:42 BoogieIcfgContainer [2020-10-29 07:58:42,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:58:42,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:58:42,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:58:42,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:58:42,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:58:38" (1/3) ... [2020-10-29 07:58:42,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3065f3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:58:42, skipping insertion in model container [2020-10-29 07:58:42,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:58:39" (2/3) ... [2020-10-29 07:58:42,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3065f3b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:58:42, skipping insertion in model container [2020-10-29 07:58:42,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:58:42" (3/3) ... [2020-10-29 07:58:42,570 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label14.c [2020-10-29 07:58:42,585 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:58:42,591 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:58:42,607 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:58:42,642 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:58:42,642 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:58:42,642 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:58:42,642 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:58:42,643 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:58:42,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:58:42,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:58:42,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:58:42,675 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 07:58:42,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-29 07:58:42,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:42,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:58:42,684 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:42,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:42,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1991696828, now seen corresponding path program 1 times [2020-10-29 07:58:42,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:42,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042153694] [2020-10-29 07:58:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:42,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:43,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:43,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 07:58:43,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-10-29 07:58:43,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:43,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:58:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:58:43,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 07:58:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:58:43,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:43,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:43,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:43,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:43,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 07:58:43,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:43,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:58:43,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:43,603 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 07:58:43,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042153694] [2020-10-29 07:58:43,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:58:43,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 07:58:43,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140748462] [2020-10-29 07:58:43,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 07:58:43,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:43,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 07:58:43,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 07:58:43,632 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 07:58:48,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:58:48,408 INFO L93 Difference]: Finished difference Result 1174 states and 2171 transitions. [2020-10-29 07:58:48,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:58:48,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-10-29 07:58:48,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:58:48,448 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 07:58:48,450 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 07:58:48,465 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 07:58:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 07:58:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 690. [2020-10-29 07:58:48,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2020-10-29 07:58:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1078 transitions. [2020-10-29 07:58:48,620 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1078 transitions. Word has length 25 [2020-10-29 07:58:48,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:58:48,621 INFO L481 AbstractCegarLoop]: Abstraction has 690 states and 1078 transitions. [2020-10-29 07:58:48,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 07:58:48,621 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1078 transitions. [2020-10-29 07:58:48,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 07:58:48,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:48,630 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:58:48,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:58:48,630 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:48,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:48,632 INFO L82 PathProgramCache]: Analyzing trace with hash -626318603, now seen corresponding path program 1 times [2020-10-29 07:58:48,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:48,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799033222] [2020-10-29 07:58:48,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:48,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:49,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:50,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:50,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:58:50,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:58:50,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1301 [2020-10-29 07:58:50,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:50,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:58:50,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:58:50,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 07:58:50,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:58:50,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:50,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:50,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:50,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:50,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:58:50,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:50,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:58:50,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:50,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:58:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:50,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:50,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:50,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 07:58:50,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:50,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-29 07:58:50,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:50,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:58:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:58:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 07:58:50,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:58:50,562 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:58:50,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799033222] [2020-10-29 07:58:50,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:58:50,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:58:50,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532521113] [2020-10-29 07:58:50,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:58:50,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:50,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:58:50,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:58:50,575 INFO L87 Difference]: Start difference. First operand 690 states and 1078 transitions. Second operand 7 states. [2020-10-29 07:58:55,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:58:55,435 INFO L93 Difference]: Finished difference Result 1741 states and 2664 transitions. [2020-10-29 07:58:55,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:58:55,436 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 100 [2020-10-29 07:58:55,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:58:55,443 INFO L225 Difference]: With dead ends: 1741 [2020-10-29 07:58:55,444 INFO L226 Difference]: Without dead ends: 1057 [2020-10-29 07:58:55,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:58:55,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2020-10-29 07:58:55,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 1042. [2020-10-29 07:58:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1042 states. [2020-10-29 07:58:55,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1495 transitions. [2020-10-29 07:58:55,489 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1495 transitions. Word has length 100 [2020-10-29 07:58:55,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:58:55,490 INFO L481 AbstractCegarLoop]: Abstraction has 1042 states and 1495 transitions. [2020-10-29 07:58:55,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:58:55,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1495 transitions. [2020-10-29 07:58:55,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 07:58:55,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:58:55,493 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:58:55,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:58:55,493 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:58:55,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:58:55,494 INFO L82 PathProgramCache]: Analyzing trace with hash -848690147, now seen corresponding path program 1 times [2020-10-29 07:58:55,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:58:55,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656645578] [2020-10-29 07:58:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:58:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:55,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:55,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:56,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:56,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:58:56,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:58:56,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 791 [2020-10-29 07:58:56,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:56,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:58:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:58:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 07:58:56,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:58:56,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:58:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:56,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:56,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:56,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:58:56,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:56,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:58:56,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:56,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:56,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:58:56,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:58:56,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:58:56,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:58:56,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:58:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:58:56,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:58:56,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:58:56,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:58:56,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:58:56,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 07:58:56,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:58:56,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:58:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:58:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:58:56,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 07:58:56,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:58:56,741 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:58:56,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656645578] [2020-10-29 07:58:56,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:58:56,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 07:58:56,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403643356] [2020-10-29 07:58:56,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:58:56,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:58:56,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:58:56,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:58:56,744 INFO L87 Difference]: Start difference. First operand 1042 states and 1495 transitions. Second operand 8 states. [2020-10-29 07:59:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:04,873 INFO L93 Difference]: Finished difference Result 4203 states and 6221 transitions. [2020-10-29 07:59:04,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:59:04,874 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 101 [2020-10-29 07:59:04,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:04,901 INFO L225 Difference]: With dead ends: 4203 [2020-10-29 07:59:04,901 INFO L226 Difference]: Without dead ends: 3167 [2020-10-29 07:59:04,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:59:04,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2020-10-29 07:59:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3142. [2020-10-29 07:59:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3142 states. [2020-10-29 07:59:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 4236 transitions. [2020-10-29 07:59:05,022 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 4236 transitions. Word has length 101 [2020-10-29 07:59:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:05,023 INFO L481 AbstractCegarLoop]: Abstraction has 3142 states and 4236 transitions. [2020-10-29 07:59:05,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:59:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 4236 transitions. [2020-10-29 07:59:05,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-29 07:59:05,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:05,028 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 07:59:05,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:59:05,029 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:05,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:05,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1181338770, now seen corresponding path program 1 times [2020-10-29 07:59:05,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:05,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607164066] [2020-10-29 07:59:05,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:05,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:05,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:05,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:05,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:07,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:07,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:07,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-29 07:59:07,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:59:07,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2593 [2020-10-29 07:59:07,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:07,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:59:07,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 07:59:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:07,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:07,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:07,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:07,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:07,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:59:07,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:07,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:07,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:07,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:07,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:07,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:07,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:08,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:08,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:59:08,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:08,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-29 07:59:08,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:08,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:59:08,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:08,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:59:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:08,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:08,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:08,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 07:59:08,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:08,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 07:59:08,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:08,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:08,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:08,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:08,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 07:59:08,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 100 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:59:08,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607164066] [2020-10-29 07:59:08,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:08,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:59:08,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245474556] [2020-10-29 07:59:08,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:59:08,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:08,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:59:08,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:59:08,390 INFO L87 Difference]: Start difference. First operand 3142 states and 4236 transitions. Second operand 8 states. [2020-10-29 07:59:14,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:14,348 INFO L93 Difference]: Finished difference Result 7367 states and 10366 transitions. [2020-10-29 07:59:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:59:14,349 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 188 [2020-10-29 07:59:14,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:14,376 INFO L225 Difference]: With dead ends: 7367 [2020-10-29 07:59:14,376 INFO L226 Difference]: Without dead ends: 4231 [2020-10-29 07:59:14,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:59:14,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2020-10-29 07:59:14,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 3827. [2020-10-29 07:59:14,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3827 states. [2020-10-29 07:59:14,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3827 states to 3827 states and 5178 transitions. [2020-10-29 07:59:14,504 INFO L78 Accepts]: Start accepts. Automaton has 3827 states and 5178 transitions. Word has length 188 [2020-10-29 07:59:14,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:14,504 INFO L481 AbstractCegarLoop]: Abstraction has 3827 states and 5178 transitions. [2020-10-29 07:59:14,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:59:14,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3827 states and 5178 transitions. [2020-10-29 07:59:14,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-10-29 07:59:14,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:14,513 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:14,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:59:14,513 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:14,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:14,514 INFO L82 PathProgramCache]: Analyzing trace with hash -717784563, now seen corresponding path program 1 times [2020-10-29 07:59:14,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:14,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670461111] [2020-10-29 07:59:14,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:14,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:14,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:15,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:15,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:17,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:19,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:19,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 382 [2020-10-29 07:59:19,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:59:19,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-29 07:59:19,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:19,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:59:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 07:59:19,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 07:59:19,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:19,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:19,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:19,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:19,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:19,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:19,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 07:59:19,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:19,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:19,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:19,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:19,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:19,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:19,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:19,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 07:59:19,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:19,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 07:59:19,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:19,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:19,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:19,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:19,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 07:59:19,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:59:19,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 07:59:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:19,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:20,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:20,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:20,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 07:59:20,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:20,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-29 07:59:20,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:20,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:20,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:20,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:20,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 07:59:20,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:20,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 07:59:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:20,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:20,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:20,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:59:20,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-29 07:59:20,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:20,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:20,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 07:59:20,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 07:59:21,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670461111] [2020-10-29 07:59:21,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:21,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:59:21,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666341471] [2020-10-29 07:59:21,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:59:21,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:21,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:59:21,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:59:21,084 INFO L87 Difference]: Start difference. First operand 3827 states and 5178 transitions. Second operand 8 states. [2020-10-29 07:59:27,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:27,633 INFO L93 Difference]: Finished difference Result 9755 states and 13571 transitions. [2020-10-29 07:59:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:59:27,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 366 [2020-10-29 07:59:27,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:27,665 INFO L225 Difference]: With dead ends: 9755 [2020-10-29 07:59:27,665 INFO L226 Difference]: Without dead ends: 5542 [2020-10-29 07:59:27,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:59:27,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5542 states. [2020-10-29 07:59:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5542 to 5177. [2020-10-29 07:59:27,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5177 states. [2020-10-29 07:59:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 5816 transitions. [2020-10-29 07:59:27,858 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 5816 transitions. Word has length 366 [2020-10-29 07:59:27,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:27,859 INFO L481 AbstractCegarLoop]: Abstraction has 5177 states and 5816 transitions. [2020-10-29 07:59:27,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:59:27,859 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 5816 transitions. [2020-10-29 07:59:27,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-29 07:59:27,867 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:27,868 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 07:59:27,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:59:27,868 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:27,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:27,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1980304785, now seen corresponding path program 1 times [2020-10-29 07:59:27,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:27,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [727438057] [2020-10-29 07:59:27,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:27,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:28,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:29,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:29,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:32,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:32,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-29 07:59:32,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:59:32,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5061 [2020-10-29 07:59:32,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:32,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-29 07:59:32,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 07:59:32,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:33,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:33,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:33,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:33,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:33,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:59:33,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:33,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:33,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:33,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:33,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:59:33,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:33,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:33,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:33,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 07:59:33,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:33,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:59:33,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:33,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:33,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:33,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:33,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 07:59:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:33,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:33,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:33,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 07:59:33,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:33,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 07:59:33,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:33,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:33,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 07:59:33,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:33,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 07:59:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:33,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:33,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:33,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:59:33,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:33,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-29 07:59:33,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:33,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:33,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:33,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:33,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 07:59:33,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 07:59:34,018 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-29 07:59:34,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [727438057] [2020-10-29 07:59:34,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:34,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:34,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948818939] [2020-10-29 07:59:34,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:34,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:34,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:34,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:34,026 INFO L87 Difference]: Start difference. First operand 5177 states and 5816 transitions. Second operand 7 states. [2020-10-29 07:59:37,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:37,746 INFO L93 Difference]: Finished difference Result 12417 states and 14055 transitions. [2020-10-29 07:59:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:59:37,747 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 369 [2020-10-29 07:59:37,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:37,818 INFO L225 Difference]: With dead ends: 12417 [2020-10-29 07:59:37,818 INFO L226 Difference]: Without dead ends: 6895 [2020-10-29 07:59:37,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:59:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2020-10-29 07:59:37,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6205. [2020-10-29 07:59:37,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6205 states. [2020-10-29 07:59:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 6913 transitions. [2020-10-29 07:59:38,008 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 6913 transitions. Word has length 369 [2020-10-29 07:59:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:38,008 INFO L481 AbstractCegarLoop]: Abstraction has 6205 states and 6913 transitions. [2020-10-29 07:59:38,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 6913 transitions. [2020-10-29 07:59:38,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2020-10-29 07:59:38,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:38,029 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:59:38,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:59:38,030 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2070051378, now seen corresponding path program 1 times [2020-10-29 07:59:38,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:38,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672239370] [2020-10-29 07:59:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:38,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:38,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:38,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:39,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:43,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:43,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 618 [2020-10-29 07:59:43,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:59:43,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 07:59:43,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:43,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:43,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:59:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 07:59:43,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:43,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:43,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:43,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:43,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:43,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:43,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:59:43,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:43,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:43,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:43,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:43,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:43,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:43,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:43,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:43,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 07:59:43,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:43,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-29 07:59:43,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:43,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:43,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:43,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:43,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 07:59:43,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:44,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 07:59:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:44,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:44,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:44,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 07:59:44,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:44,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:59:44,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:44,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:44,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:44,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 07:59:44,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:44,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:44,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 07:59:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:44,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:44,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:44,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:59:44,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:44,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 07:59:44,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:44,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:44,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:44,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 07:59:44,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:44,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:44,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2020-10-29 07:59:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:44,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:44,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:44,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:59:44,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:44,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 07:59:44,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:44,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:59:44,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:44,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:45,107 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 68 proven. 311 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-29 07:59:45,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672239370] [2020-10-29 07:59:45,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:45,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:45,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010494429] [2020-10-29 07:59:45,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:45,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:45,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:45,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:45,112 INFO L87 Difference]: Start difference. First operand 6205 states and 6913 transitions. Second operand 7 states. [2020-10-29 07:59:48,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:48,711 INFO L93 Difference]: Finished difference Result 13119 states and 14596 transitions. [2020-10-29 07:59:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:59:48,712 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 600 [2020-10-29 07:59:48,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:59:48,753 INFO L225 Difference]: With dead ends: 13119 [2020-10-29 07:59:48,753 INFO L226 Difference]: Without dead ends: 6920 [2020-10-29 07:59:48,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:59:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6920 states. [2020-10-29 07:59:48,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6920 to 6892. [2020-10-29 07:59:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6892 states. [2020-10-29 07:59:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 7622 transitions. [2020-10-29 07:59:48,938 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 7622 transitions. Word has length 600 [2020-10-29 07:59:48,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:59:48,939 INFO L481 AbstractCegarLoop]: Abstraction has 6892 states and 7622 transitions. [2020-10-29 07:59:48,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:59:48,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 7622 transitions. [2020-10-29 07:59:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 848 [2020-10-29 07:59:48,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:59:48,976 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:59:48,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:59:48,976 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:59:48,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:59:48,977 INFO L82 PathProgramCache]: Analyzing trace with hash 764009857, now seen corresponding path program 1 times [2020-10-29 07:59:48,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:59:48,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628425017] [2020-10-29 07:59:48,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:59:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:49,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:49,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:49,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:50,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:54,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:54,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 867 [2020-10-29 07:59:54,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:59:54,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 07:59:54,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:54,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:59:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:59:54,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 07:59:54,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:54,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:59:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:54,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:54,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:54,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:59:54,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:54,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:59:54,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:54,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:54,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:54,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:59:54,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:54,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:59:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:54,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:54,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:54,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:54,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 07:59:54,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:59:54,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-29 07:59:54,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:54,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:54,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:59:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:59:54,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 07:59:54,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:54,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 07:59:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:54,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:55,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 07:59:55,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:55,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-29 07:59:55,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:55,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:59:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:59:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 07:59:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:55,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 07:59:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:55,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:55,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 07:59:55,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:55,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:59:55,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:55,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 07:59:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:55,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 07:59:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:55,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:55,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 07:59:55,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:59:55,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:55,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:55,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 07:59:55,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:55,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:55,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 688 [2020-10-29 07:59:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:59:55,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:59:55,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:59:55,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 07:59:55,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:59:55,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:59:55,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:59:55,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:59:55,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:59:55,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 07:59:55,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:59:55,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:59:56,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1237 backedges. 338 proven. 319 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2020-10-29 07:59:56,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628425017] [2020-10-29 07:59:56,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:59:56,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:59:56,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540024184] [2020-10-29 07:59:56,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:59:56,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:59:56,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:59:56,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:59:56,869 INFO L87 Difference]: Start difference. First operand 6892 states and 7622 transitions. Second operand 7 states. [2020-10-29 07:59:59,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:59:59,993 INFO L93 Difference]: Finished difference Result 13108 states and 14554 transitions. [2020-10-29 07:59:59,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:00:00,000 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 847 [2020-10-29 08:00:00,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:00,023 INFO L225 Difference]: With dead ends: 13108 [2020-10-29 08:00:00,023 INFO L226 Difference]: Without dead ends: 6898 [2020-10-29 08:00:00,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:00:00,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6898 states. [2020-10-29 08:00:00,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6898 to 6892. [2020-10-29 08:00:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6892 states. [2020-10-29 08:00:00,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 7620 transitions. [2020-10-29 08:00:00,192 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 7620 transitions. Word has length 847 [2020-10-29 08:00:00,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:00,193 INFO L481 AbstractCegarLoop]: Abstraction has 6892 states and 7620 transitions. [2020-10-29 08:00:00,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:00,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 7620 transitions. [2020-10-29 08:00:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2020-10-29 08:00:00,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:00,211 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:00,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:00:00,211 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:00,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:00,212 INFO L82 PathProgramCache]: Analyzing trace with hash -347258188, now seen corresponding path program 1 times [2020-10-29 08:00:00,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:00,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487603115] [2020-10-29 08:00:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:00,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:00,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:00,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 903 [2020-10-29 08:00:05,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:00:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-10-29 08:00:05,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-29 08:00:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:00:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:00:05,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:05,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:05,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:05,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:00:05,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:05,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:05,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:05,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:05,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:05,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:05,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:00:05,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:05,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:05,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:06,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:06,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:06,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:06,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:00:06,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:06,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:00:06,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:06,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:06,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:06,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:06,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:06,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:00:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:06,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:06,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:06,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:06,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:00:06,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:06,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:06,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:06,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:00:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:06,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:06,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:06,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:00:06,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:06,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:00:06,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:06,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:06,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:00:06,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:06,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:00:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:06,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:06,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:06,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:06,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:06,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 08:00:06,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:06,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:06,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:00:06,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:06,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2020-10-29 08:00:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:06,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:06,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:06,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:00:06,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:06,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:00:06,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:06,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:00:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 535 proven. 114 refuted. 0 times theorem prover too weak. 1091 trivial. 0 not checked. [2020-10-29 08:00:07,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487603115] [2020-10-29 08:00:07,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:07,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:07,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810687824] [2020-10-29 08:00:07,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:07,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:07,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:07,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:07,126 INFO L87 Difference]: Start difference. First operand 6892 states and 7620 transitions. Second operand 7 states. [2020-10-29 08:00:10,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:10,836 INFO L93 Difference]: Finished difference Result 15153 states and 16944 transitions. [2020-10-29 08:00:10,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:00:10,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 881 [2020-10-29 08:00:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:10,866 INFO L225 Difference]: With dead ends: 15153 [2020-10-29 08:00:10,866 INFO L226 Difference]: Without dead ends: 8943 [2020-10-29 08:00:10,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:00:10,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8943 states. [2020-10-29 08:00:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8943 to 8263. [2020-10-29 08:00:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8263 states. [2020-10-29 08:00:11,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8263 states to 8263 states and 9259 transitions. [2020-10-29 08:00:11,064 INFO L78 Accepts]: Start accepts. Automaton has 8263 states and 9259 transitions. Word has length 881 [2020-10-29 08:00:11,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:11,066 INFO L481 AbstractCegarLoop]: Abstraction has 8263 states and 9259 transitions. [2020-10-29 08:00:11,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand 8263 states and 9259 transitions. [2020-10-29 08:00:11,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2020-10-29 08:00:11,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:11,084 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:11,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:00:11,084 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:11,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:11,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1461323202, now seen corresponding path program 1 times [2020-10-29 08:00:11,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:11,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220966643] [2020-10-29 08:00:11,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:11,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:11,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:12,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:16,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:16,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 904 [2020-10-29 08:00:16,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:00:16,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-29 08:00:16,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:16,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:16,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:16,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:00:16,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:00:16,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:16,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:16,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:16,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:16,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:16,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:16,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:00:16,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:16,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:16,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:16,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:16,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:16,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:16,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:16,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:16,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:16,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:16,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-29 08:00:16,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:16,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:16,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:00:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:16,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:16,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:00:17,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:17,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 08:00:17,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:17,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:00:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:00:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:17,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:17,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:00:17,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:17,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:00:17,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:17,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:00:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:00:17,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:00:17,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-29 08:00:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:17,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:00:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:17,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:17,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:00:17,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:00:17,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:17,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:17,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-29 08:00:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:17,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:17,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:17,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:00:17,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:00:17,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:17,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:00:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1745 backedges. 277 proven. 446 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2020-10-29 08:00:18,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220966643] [2020-10-29 08:00:18,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:18,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:00:18,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177072950] [2020-10-29 08:00:18,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:00:18,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:18,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:00:18,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:00:18,246 INFO L87 Difference]: Start difference. First operand 8263 states and 9259 transitions. Second operand 8 states. [2020-10-29 08:00:23,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:23,996 INFO L93 Difference]: Finished difference Result 20607 states and 23354 transitions. [2020-10-29 08:00:23,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 08:00:23,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 882 [2020-10-29 08:00:23,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:24,039 INFO L225 Difference]: With dead ends: 20607 [2020-10-29 08:00:24,039 INFO L226 Difference]: Without dead ends: 12687 [2020-10-29 08:00:24,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-29 08:00:24,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12687 states. [2020-10-29 08:00:24,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12687 to 11672. [2020-10-29 08:00:24,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11672 states. [2020-10-29 08:00:24,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11672 states to 11672 states and 13087 transitions. [2020-10-29 08:00:24,390 INFO L78 Accepts]: Start accepts. Automaton has 11672 states and 13087 transitions. Word has length 882 [2020-10-29 08:00:24,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:24,391 INFO L481 AbstractCegarLoop]: Abstraction has 11672 states and 13087 transitions. [2020-10-29 08:00:24,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:00:24,391 INFO L276 IsEmpty]: Start isEmpty. Operand 11672 states and 13087 transitions. [2020-10-29 08:00:24,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2020-10-29 08:00:24,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:24,419 INFO L422 BasicCegarLoop]: trace histogram [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, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 08:00:24,420 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:00:24,420 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:24,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:24,421 INFO L82 PathProgramCache]: Analyzing trace with hash 783551112, now seen corresponding path program 1 times [2020-10-29 08:00:24,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:24,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835949497] [2020-10-29 08:00:24,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:24,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:25,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:25,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:29,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:29,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1073 [2020-10-29 08:00:29,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:00:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-10-29 08:00:29,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:29,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:00:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-29 08:00:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 275 [2020-10-29 08:00:29,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:29,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:29,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:29,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:29,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:29,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:29,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:00:29,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:29,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:29,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:29,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:29,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:29,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:29,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:29,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:00:29,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:29,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:29,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:29,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:00:30,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:00:30,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:00:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:00:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:00:30,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:00:30,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:30,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:00:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:30,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:30,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:30,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:00:30,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:30,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:00:30,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:30,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:00:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:30,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:30,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:31,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-29 08:00:31,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 132 proven. 10 refuted. 0 times theorem prover too weak. 1842 trivial. 0 not checked. [2020-10-29 08:00:31,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835949497] [2020-10-29 08:00:31,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:31,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 08:00:31,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171223975] [2020-10-29 08:00:31,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 08:00:31,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:31,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 08:00:31,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:00:31,621 INFO L87 Difference]: Start difference. First operand 11672 states and 13087 transitions. Second operand 6 states. [2020-10-29 08:00:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:34,908 INFO L93 Difference]: Finished difference Result 22662 states and 25481 transitions. [2020-10-29 08:00:34,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:00:34,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1051 [2020-10-29 08:00:34,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:34,967 INFO L225 Difference]: With dead ends: 22662 [2020-10-29 08:00:34,967 INFO L226 Difference]: Without dead ends: 11672 [2020-10-29 08:00:34,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11672 states. [2020-10-29 08:00:35,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11672 to 11672. [2020-10-29 08:00:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11672 states. [2020-10-29 08:00:35,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11672 states to 11672 states and 12831 transitions. [2020-10-29 08:00:35,263 INFO L78 Accepts]: Start accepts. Automaton has 11672 states and 12831 transitions. Word has length 1051 [2020-10-29 08:00:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:35,266 INFO L481 AbstractCegarLoop]: Abstraction has 11672 states and 12831 transitions. [2020-10-29 08:00:35,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 08:00:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 11672 states and 12831 transitions. [2020-10-29 08:00:35,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1252 [2020-10-29 08:00:35,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:35,304 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 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 08:00:35,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:00:35,305 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:35,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:35,306 INFO L82 PathProgramCache]: Analyzing trace with hash -757603222, now seen corresponding path program 1 times [2020-10-29 08:00:35,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:35,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337575618] [2020-10-29 08:00:35,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:35,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:36,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:36,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:39,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1277 [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-29 08:00:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:40,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:40,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:40,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:40,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:40,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:40,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:40,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:40,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:41,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:41,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:00:41,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:41,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 08:00:41,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:41,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:41,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:00:41,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:41,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:00:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:41,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:00:41,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:41,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:00:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:41,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:41,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:00:41,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:41,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:00:41,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:41,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-29 08:00:41,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:41,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:41,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:00:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:41,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:41,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:41,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:41,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:00:41,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:41,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-29 08:00:41,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:41,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:41,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:00:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:41,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:41,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:00:41,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:41,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:00:41,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:41,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:41,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:00:41,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:41,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:41,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 926 [2020-10-29 08:00:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:41,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:41,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-29 08:00:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:41,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:41,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:41,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3422 backedges. 433 proven. 540 refuted. 0 times theorem prover too weak. 2449 trivial. 0 not checked. [2020-10-29 08:00:42,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337575618] [2020-10-29 08:00:42,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:42,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:42,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229680251] [2020-10-29 08:00:42,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:42,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:42,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:42,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:42,946 INFO L87 Difference]: Start difference. First operand 11672 states and 12831 transitions. Second operand 7 states. [2020-10-29 08:00:47,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:00:47,853 INFO L93 Difference]: Finished difference Result 25727 states and 28429 transitions. [2020-10-29 08:00:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:00:47,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1251 [2020-10-29 08:00:47,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:00:47,907 INFO L225 Difference]: With dead ends: 25727 [2020-10-29 08:00:47,907 INFO L226 Difference]: Without dead ends: 14737 [2020-10-29 08:00:47,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 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 08:00:47,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14737 states. [2020-10-29 08:00:48,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14737 to 14735. [2020-10-29 08:00:48,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14735 states. [2020-10-29 08:00:48,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14735 states to 14735 states and 16123 transitions. [2020-10-29 08:00:48,214 INFO L78 Accepts]: Start accepts. Automaton has 14735 states and 16123 transitions. Word has length 1251 [2020-10-29 08:00:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:00:48,215 INFO L481 AbstractCegarLoop]: Abstraction has 14735 states and 16123 transitions. [2020-10-29 08:00:48,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:00:48,215 INFO L276 IsEmpty]: Start isEmpty. Operand 14735 states and 16123 transitions. [2020-10-29 08:00:48,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1275 [2020-10-29 08:00:48,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:00:48,256 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:48,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:00:48,257 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:00:48,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:00:48,258 INFO L82 PathProgramCache]: Analyzing trace with hash 833713059, now seen corresponding path program 1 times [2020-10-29 08:00:48,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:00:48,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418187196] [2020-10-29 08:00:48,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:00:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:48,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:49,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:49,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:53,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:53,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1298 [2020-10-29 08:00:53,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:00:53,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-29 08:00:53,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:53,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 796 [2020-10-29 08:00:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:00:53,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:53,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:00:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:53,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:53,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:53,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:00:53,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:53,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:00:53,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:53,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:53,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:53,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:53,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:00:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:53,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:53,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:53,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:00:53,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:53,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:00:53,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:53,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:53,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:53,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:53,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:53,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:53,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:00:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:53,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:53,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:53,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:00:53,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:53,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:00:53,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:53,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:53,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:53,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:54,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:00:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:54,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:54,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:54,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:00:54,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:54,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:00:54,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:54,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:54,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:54,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:00:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:54,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:54,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:00:54,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:00:54,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:54,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:54,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:54,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:54,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:00:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:54,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:54,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:54,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:00:54,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 08:00:54,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:54,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:00:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:00:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:00:54,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:54,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:00:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:54,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:54,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:54,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:00:54,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:54,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-29 08:00:54,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:54,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:00:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:00:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:00:54,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:54,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1059 [2020-10-29 08:00:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:00:54,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:00:54,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:00:54,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:00:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2913 backedges. 922 proven. 197 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2020-10-29 08:00:55,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418187196] [2020-10-29 08:00:55,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:00:55,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:00:55,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459824737] [2020-10-29 08:00:55,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:00:55,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:00:55,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:00:55,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:00:55,901 INFO L87 Difference]: Start difference. First operand 14735 states and 16123 transitions. Second operand 7 states. [2020-10-29 08:01:01,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:01,418 INFO L93 Difference]: Finished difference Result 29129 states and 31908 transitions. [2020-10-29 08:01:01,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:01,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1274 [2020-10-29 08:01:01,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:01,465 INFO L225 Difference]: With dead ends: 29129 [2020-10-29 08:01:01,465 INFO L226 Difference]: Without dead ends: 15076 [2020-10-29 08:01:01,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 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 08:01:01,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15076 states. [2020-10-29 08:01:01,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15076 to 14735. [2020-10-29 08:01:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14735 states. [2020-10-29 08:01:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14735 states to 14735 states and 16088 transitions. [2020-10-29 08:01:01,790 INFO L78 Accepts]: Start accepts. Automaton has 14735 states and 16088 transitions. Word has length 1274 [2020-10-29 08:01:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:01,792 INFO L481 AbstractCegarLoop]: Abstraction has 14735 states and 16088 transitions. [2020-10-29 08:01:01,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 14735 states and 16088 transitions. [2020-10-29 08:01:01,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1285 [2020-10-29 08:01:01,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:01,984 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:01,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:01:01,985 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:01,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:01,986 INFO L82 PathProgramCache]: Analyzing trace with hash -154704082, now seen corresponding path program 1 times [2020-10-29 08:01:01,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:01,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [744224039] [2020-10-29 08:01:01,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:02,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:07,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1306 [2020-10-29 08:01:07,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:01:07,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5077 [2020-10-29 08:01:07,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:07,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 804 [2020-10-29 08:01:07,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:07,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:07,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:07,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:07,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:07,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:01:07,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:07,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:07,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:07,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:07,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:07,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:07,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:07,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-29 08:01:07,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:07,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:07,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:07,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:07,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:07,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:07,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:01:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:07,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:07,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:07,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:07,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:01:07,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:07,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:07,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:07,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:01:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:07,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:08,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:01:08,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-29 08:01:08,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:08,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:01:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:08,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 796 [2020-10-29 08:01:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:08,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:08,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:08,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1069 [2020-10-29 08:01:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:08,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:08,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:08,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 08:01:08,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:08,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:01:08,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:08,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:08,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:01:08,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:08,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2810 backedges. 909 proven. 197 refuted. 0 times theorem prover too weak. 1704 trivial. 0 not checked. [2020-10-29 08:01:10,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [744224039] [2020-10-29 08:01:10,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:10,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:10,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993697859] [2020-10-29 08:01:10,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:10,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:10,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:10,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:10,153 INFO L87 Difference]: Start difference. First operand 14735 states and 16088 transitions. Second operand 7 states. [2020-10-29 08:01:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:14,580 INFO L93 Difference]: Finished difference Result 28800 states and 31514 transitions. [2020-10-29 08:01:14,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:01:14,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1284 [2020-10-29 08:01:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:14,625 INFO L225 Difference]: With dead ends: 28800 [2020-10-29 08:01:14,625 INFO L226 Difference]: Without dead ends: 14747 [2020-10-29 08:01:14,646 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:01:14,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14747 states. [2020-10-29 08:01:14,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14747 to 14739. [2020-10-29 08:01:14,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14739 states. [2020-10-29 08:01:14,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14739 states to 14739 states and 16092 transitions. [2020-10-29 08:01:14,947 INFO L78 Accepts]: Start accepts. Automaton has 14739 states and 16092 transitions. Word has length 1284 [2020-10-29 08:01:14,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:14,949 INFO L481 AbstractCegarLoop]: Abstraction has 14739 states and 16092 transitions. [2020-10-29 08:01:14,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:14,949 INFO L276 IsEmpty]: Start isEmpty. Operand 14739 states and 16092 transitions. [2020-10-29 08:01:14,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1304 [2020-10-29 08:01:14,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:14,987 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:01:14,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:01:14,987 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:14,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:14,988 INFO L82 PathProgramCache]: Analyzing trace with hash -186983529, now seen corresponding path program 1 times [2020-10-29 08:01:14,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:14,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777077061] [2020-10-29 08:01:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:15,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:15,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1327 [2020-10-29 08:01:20,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:01:20,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-10-29 08:01:20,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:20,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 825 [2020-10-29 08:01:20,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:01:20,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:20,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:20,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:01:20,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:20,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:20,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:20,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:20,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:01:20,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:20,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:20,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:20,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:20,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:01:20,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:01:20,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:01:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:20,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:01:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:20,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:20,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:20,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:20,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:01:20,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:20,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:20,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:20,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:20,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:01:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:20,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:01:21,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:21,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 815 [2020-10-29 08:01:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:21,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:21,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:01:21,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:21,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-10-29 08:01:21,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:21,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:01:21,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:21,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1088 [2020-10-29 08:01:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:21,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:21,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:21,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 08:01:21,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:21,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:01:21,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:21,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:21,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:21,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-29 08:01:21,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:21,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:23,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3043 backedges. 951 proven. 197 refuted. 0 times theorem prover too weak. 1895 trivial. 0 not checked. [2020-10-29 08:01:23,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777077061] [2020-10-29 08:01:23,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:23,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:23,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821224339] [2020-10-29 08:01:23,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:23,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:23,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:23,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:23,613 INFO L87 Difference]: Start difference. First operand 14739 states and 16092 transitions. Second operand 7 states. [2020-10-29 08:01:28,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:28,213 INFO L93 Difference]: Finished difference Result 29147 states and 31911 transitions. [2020-10-29 08:01:28,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:01:28,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1303 [2020-10-29 08:01:28,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:28,250 INFO L225 Difference]: With dead ends: 29147 [2020-10-29 08:01:28,251 INFO L226 Difference]: Without dead ends: 15090 [2020-10-29 08:01:28,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 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 08:01:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15090 states. [2020-10-29 08:01:28,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15090 to 15078. [2020-10-29 08:01:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15078 states. [2020-10-29 08:01:28,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15078 states to 15078 states and 16440 transitions. [2020-10-29 08:01:28,556 INFO L78 Accepts]: Start accepts. Automaton has 15078 states and 16440 transitions. Word has length 1303 [2020-10-29 08:01:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:28,558 INFO L481 AbstractCegarLoop]: Abstraction has 15078 states and 16440 transitions. [2020-10-29 08:01:28,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 15078 states and 16440 transitions. [2020-10-29 08:01:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1362 [2020-10-29 08:01:28,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:28,592 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:01:28,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:01:28,593 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:28,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:28,594 INFO L82 PathProgramCache]: Analyzing trace with hash -702874618, now seen corresponding path program 1 times [2020-10-29 08:01:28,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:28,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875128955] [2020-10-29 08:01:28,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:29,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:29,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:33,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:33,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1387 [2020-10-29 08:01:33,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:01:33,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5093 [2020-10-29 08:01:33,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:33,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:33,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:33,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1160 [2020-10-29 08:01:33,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-29 08:01:33,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:34,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:34,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:01:34,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:34,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:34,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:34,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:34,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:34,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-29 08:01:34,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:34,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:34,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:34,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:34,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:34,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:34,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:34,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:01:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:34,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:34,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:34,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:01:34,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:34,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:34,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:34,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:34,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:34,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:01:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:34,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:34,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 08:01:34,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:34,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:01:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:34,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:34,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:34,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:01:34,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:34,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:34,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:34,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:34,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:34,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:01:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:34,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:01:34,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:34,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:01:34,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:34,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:34,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:34,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:34,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:34,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-29 08:01:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:34,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:34,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:34,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:34,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:34,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:01:34,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:34,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:34,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:34,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:34,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:01:34,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:34,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-29 08:01:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:35,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:35,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:35,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-29 08:01:35,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-29 08:01:35,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:35,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-29 08:01:35,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 1163 proven. 2 refuted. 0 times theorem prover too weak. 2495 trivial. 0 not checked. [2020-10-29 08:01:36,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875128955] [2020-10-29 08:01:36,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:36,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:36,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922132039] [2020-10-29 08:01:36,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:36,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:36,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:36,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:36,227 INFO L87 Difference]: Start difference. First operand 15078 states and 16440 transitions. Second operand 7 states. [2020-10-29 08:01:42,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:42,225 INFO L93 Difference]: Finished difference Result 33873 states and 36976 transitions. [2020-10-29 08:01:42,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:01:42,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1361 [2020-10-29 08:01:42,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:42,265 INFO L225 Difference]: With dead ends: 33873 [2020-10-29 08:01:42,265 INFO L226 Difference]: Without dead ends: 18091 [2020-10-29 08:01:42,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 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 08:01:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18091 states. [2020-10-29 08:01:42,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18091 to 15389. [2020-10-29 08:01:42,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15389 states. [2020-10-29 08:01:42,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15389 states to 15389 states and 16554 transitions. [2020-10-29 08:01:42,581 INFO L78 Accepts]: Start accepts. Automaton has 15389 states and 16554 transitions. Word has length 1361 [2020-10-29 08:01:42,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:42,583 INFO L481 AbstractCegarLoop]: Abstraction has 15389 states and 16554 transitions. [2020-10-29 08:01:42,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:42,583 INFO L276 IsEmpty]: Start isEmpty. Operand 15389 states and 16554 transitions. [2020-10-29 08:01:42,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1528 [2020-10-29 08:01:42,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:42,622 INFO L422 BasicCegarLoop]: trace histogram [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, 9, 9, 9, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 08:01:42,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:01:42,622 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:42,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:42,623 INFO L82 PathProgramCache]: Analyzing trace with hash 480627853, now seen corresponding path program 1 times [2020-10-29 08:01:42,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:42,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372411195] [2020-10-29 08:01:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:42,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:43,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:47,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1555 [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1160 [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-29 08:01:47,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:48,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:01:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:48,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:01:48,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:48,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:01:48,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:48,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:01:48,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:01:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:48,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:01:48,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:48,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:01:48,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:48,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:48,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:48,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:48,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:48,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:01:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:48,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:01:48,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:48,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:01:48,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:48,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:48,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:48,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:48,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:48,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:01:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:48,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:01:48,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:48,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:01:48,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:48,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:48,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:48,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:48,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:01:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:48,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:01:48,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:48,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:01:48,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:48,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:48,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:48,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:48,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:01:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:48,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:01:48,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:48,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:01:48,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:48,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:48,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:48,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:48,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:01:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:48,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:01:48,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:48,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:01:48,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:48,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:48,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:48,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:48,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-29 08:01:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:48,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:01:48,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:48,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-29 08:01:48,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:49,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:49,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:49,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:01:49,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:49,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-29 08:01:49,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:49,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:01:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:01:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-29 08:01:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:49,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1361 [2020-10-29 08:01:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:49,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:49,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:01:49,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:01:49,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:01:49,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:01:49,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:01:49,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:01:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:01:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:01:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:01:49,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:01:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4748 backedges. 1259 proven. 148 refuted. 0 times theorem prover too weak. 3341 trivial. 0 not checked. [2020-10-29 08:01:51,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372411195] [2020-10-29 08:01:51,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:01:51,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:01:51,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379397091] [2020-10-29 08:01:51,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:01:51,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:01:51,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:01:51,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:01:51,654 INFO L87 Difference]: Start difference. First operand 15389 states and 16554 transitions. Second operand 7 states. [2020-10-29 08:01:55,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:01:55,923 INFO L93 Difference]: Finished difference Result 30106 states and 32429 transitions. [2020-10-29 08:01:55,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:01:55,924 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1527 [2020-10-29 08:01:55,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:01:55,957 INFO L225 Difference]: With dead ends: 30106 [2020-10-29 08:01:55,957 INFO L226 Difference]: Without dead ends: 15399 [2020-10-29 08:01:55,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:01:55,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15399 states. [2020-10-29 08:01:56,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15399 to 15389. [2020-10-29 08:01:56,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15389 states. [2020-10-29 08:01:56,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15389 states to 15389 states and 16520 transitions. [2020-10-29 08:01:56,378 INFO L78 Accepts]: Start accepts. Automaton has 15389 states and 16520 transitions. Word has length 1527 [2020-10-29 08:01:56,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:01:56,379 INFO L481 AbstractCegarLoop]: Abstraction has 15389 states and 16520 transitions. [2020-10-29 08:01:56,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:01:56,379 INFO L276 IsEmpty]: Start isEmpty. Operand 15389 states and 16520 transitions. [2020-10-29 08:01:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1587 [2020-10-29 08:01:56,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:01:56,415 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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] [2020-10-29 08:01:56,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 08:01:56,415 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:01:56,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:01:56,416 INFO L82 PathProgramCache]: Analyzing trace with hash 268071356, now seen corresponding path program 1 times [2020-10-29 08:01:56,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:01:56,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512555621] [2020-10-29 08:01:56,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:01:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:01:56,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:57,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:57,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:57,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:01:57,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:01,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:01,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1612 [2020-10-29 08:02:01,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:02:01,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5103 [2020-10-29 08:02:01,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:01,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 942 [2020-10-29 08:02:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:02:01,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:02,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:02,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:02,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:02,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:02,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:02:02,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:02,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:02,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:02,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:02,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:02,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:02,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:02,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:02,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:02:02,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:02:02,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:02,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:02,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:02:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:02,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:02,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:02:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:02,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:02,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:02:02,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:02,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:02:02,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:02,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:02,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:02,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:02,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:02:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:02,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:02,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:02,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:02,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2020-10-29 08:02:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:02,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:02,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:02:02,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:02,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 932 [2020-10-29 08:02:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:02,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:03,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:03,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:02:03,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-29 08:02:03,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:03,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:02:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:03,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1205 [2020-10-29 08:02:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:03,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-29 08:02:03,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:03,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:03,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1420 [2020-10-29 08:02:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:03,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:03,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:02:03,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:02:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4413 backedges. 1105 proven. 360 refuted. 0 times theorem prover too weak. 2948 trivial. 0 not checked. [2020-10-29 08:02:04,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512555621] [2020-10-29 08:02:04,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:04,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:04,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993584847] [2020-10-29 08:02:04,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:04,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:04,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:04,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:04,870 INFO L87 Difference]: Start difference. First operand 15389 states and 16520 transitions. Second operand 7 states.