/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/reducercommutativity/avg05-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:12:28,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:12:28,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:12:28,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:12:28,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:12:28,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:12:28,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:12:28,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:12:28,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:12:28,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:12:28,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:12:28,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:12:28,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:12:28,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:12:28,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:12:28,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:12:28,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:12:28,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:12:28,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:12:28,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:12:28,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:12:28,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:12:28,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:12:28,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:12:28,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:12:28,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:12:28,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:12:28,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:12:28,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:12:28,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:12:28,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:12:28,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:12:28,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:12:28,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:12:28,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:12:28,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:12:28,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:12:28,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:12:28,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:12:28,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:12:28,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:12:28,631 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 12:12:28,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:12:28,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:12:28,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:12:28,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:12:28,687 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:12:28,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:12:28,687 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:12:28,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:12:28,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:12:28,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:12:28,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:12:28,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:12:28,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:12:28,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:12:28,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:12:28,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:12:28,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:12:28,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:12:28,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:12:28,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:12:28,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:12:28,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:12:28,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:12:28,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:12:28,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:12:28,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:12:28,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:12:28,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:12:28,693 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:12:28,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:12:29,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:12:29,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:12:29,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:12:29,172 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:12:29,173 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:12:29,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/avg05-1.i [2020-10-29 12:12:29,260 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f6d18848/5faf3f6f10784a84a91a9240b114cdd0/FLAG996446f2e [2020-10-29 12:12:29,903 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:12:29,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/reducercommutativity/avg05-1.i [2020-10-29 12:12:29,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f6d18848/5faf3f6f10784a84a91a9240b114cdd0/FLAG996446f2e [2020-10-29 12:12:30,258 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5f6d18848/5faf3f6f10784a84a91a9240b114cdd0 [2020-10-29 12:12:30,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:12:30,272 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:12:30,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:12:30,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:12:30,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:12:30,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621f661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30, skipping insertion in model container [2020-10-29 12:12:30,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:12:30,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:12:30,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:12:30,501 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:12:30,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:12:30,546 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:12:30,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30 WrapperNode [2020-10-29 12:12:30,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:12:30,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:12:30,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:12:30,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:12:30,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (1/1) ... [2020-10-29 12:12:30,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:12:30,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:12:30,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:12:30,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:12:30,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:12:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:12:30,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:12:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:12:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2020-10-29 12:12:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:12:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:12:30,694 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:12:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 12:12:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 12:12:30,695 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:12:30,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:12:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 12:12:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2020-10-29 12:12:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:12:30,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:12:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:12:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:12:30,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:12:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:12:30,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:12:31,196 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:12:31,196 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 12:12:31,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:12:31 BoogieIcfgContainer [2020-10-29 12:12:31,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:12:31,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:12:31,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:12:31,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:12:31,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:12:30" (1/3) ... [2020-10-29 12:12:31,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c994aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:12:31, skipping insertion in model container [2020-10-29 12:12:31,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:12:30" (2/3) ... [2020-10-29 12:12:31,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c994aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:12:31, skipping insertion in model container [2020-10-29 12:12:31,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:12:31" (3/3) ... [2020-10-29 12:12:31,207 INFO L111 eAbstractionObserver]: Analyzing ICFG avg05-1.i [2020-10-29 12:12:31,220 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:12:31,224 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:12:31,239 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:12:31,270 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:12:31,270 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:12:31,270 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:12:31,270 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:12:31,271 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:12:31,271 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:12:31,271 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:12:31,271 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:12:31,292 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-10-29 12:12:31,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-29 12:12:31,299 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:31,300 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:31,301 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:31,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:31,308 INFO L82 PathProgramCache]: Analyzing trace with hash 585288593, now seen corresponding path program 1 times [2020-10-29 12:12:31,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:31,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [253634813] [2020-10-29 12:12:31,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:31,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:31,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:31,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:31,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:32,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:32,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:33,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-29 12:12:33,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:12:33,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1886 [2020-10-29 12:12:33,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:33,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 12:12:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:12:33,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 12:12:33,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:12:33,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:33,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:33,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:33,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:33,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:12:33,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:33,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:33,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:33,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:33,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:33,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:33,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:33,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:33,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:12:33,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:33,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 12:12:33,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:33,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:12:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:33,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:12:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:33,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-29 12:12:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:33,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:33,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:12:33,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:33,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 12:12:33,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:33,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:33,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:33,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:33,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:12:33,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:33,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 12:12:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:33,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:33,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:33,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:12:33,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:33,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 12:12:33,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:33,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:33,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:33,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:33,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:12:33,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 12:12:33,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [253634813] [2020-10-29 12:12:33,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:12:33,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:12:33,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746409310] [2020-10-29 12:12:33,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:12:33,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:34,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:12:34,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:12:34,014 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 11 states. [2020-10-29 12:12:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:34,573 INFO L93 Difference]: Finished difference Result 87 states and 129 transitions. [2020-10-29 12:12:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 12:12:34,575 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 34 [2020-10-29 12:12:34,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:34,586 INFO L225 Difference]: With dead ends: 87 [2020-10-29 12:12:34,587 INFO L226 Difference]: Without dead ends: 50 [2020-10-29 12:12:34,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-10-29 12:12:34,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-29 12:12:34,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 39. [2020-10-29 12:12:34,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-29 12:12:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-10-29 12:12:34,647 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 34 [2020-10-29 12:12:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:34,648 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-10-29 12:12:34,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:12:34,648 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2020-10-29 12:12:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-29 12:12:34,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:34,651 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:34,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:12:34,652 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:34,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:34,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1940454449, now seen corresponding path program 1 times [2020-10-29 12:12:34,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:34,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24756363] [2020-10-29 12:12:34,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:34,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:34,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:34,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:34,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 12:12:36,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:12:36,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1898 [2020-10-29 12:12:36,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:12:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 12:12:36,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 12:12:36,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:36,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:36,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:12:36,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:36,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:36,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:12:36,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:36,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:12:36,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:12:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:36,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:12:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:36,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-29 12:12:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:12:36,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:36,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:12:36,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:12:36,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:36,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:12:36,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 12:12:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:36,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:36,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:36,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:12:36,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:12:36,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:36,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:12:36,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:36,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 12:12:36,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 12:12:36,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24756363] [2020-10-29 12:12:36,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:36,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 12:12:36,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771629870] [2020-10-29 12:12:36,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 12:12:36,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:36,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 12:12:36,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 12:12:36,755 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 5 states. [2020-10-29 12:12:36,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:36,957 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2020-10-29 12:12:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 12:12:36,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-10-29 12:12:36,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:36,959 INFO L225 Difference]: With dead ends: 62 [2020-10-29 12:12:36,960 INFO L226 Difference]: Without dead ends: 32 [2020-10-29 12:12:36,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:12:36,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-29 12:12:36,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-10-29 12:12:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-29 12:12:36,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-10-29 12:12:36,977 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 36 [2020-10-29 12:12:36,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:36,978 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-10-29 12:12:36,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 12:12:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-10-29 12:12:36,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-29 12:12:36,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:36,983 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:36,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:12:36,984 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:36,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:36,986 INFO L82 PathProgramCache]: Analyzing trace with hash 51803405, now seen corresponding path program 2 times [2020-10-29 12:12:36,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:36,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507356433] [2020-10-29 12:12:36,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:37,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:37,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:37,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:37,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:38,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:42,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 12:12:42,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:12:42,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 12:12:42,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:42,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:12:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 12:12:42,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:12:42,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:42,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:42,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:42,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:42,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:42,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:12:42,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:42,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:42,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:42,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:42,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:42,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:42,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:12:42,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:42,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 12:12:42,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:42,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:12:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:42,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:12:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:42,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 12:12:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:42,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:42,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:12:42,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:42,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 12:12:42,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:42,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:42,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:12:42,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:42,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:12:42,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:12:42,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 12:12:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:42,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:42,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 12:12:42,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:42,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:12:42,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:42,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:12:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:42,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:12:42,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-29 12:12:42,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507356433] [2020-10-29 12:12:42,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:42,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 12:12:42,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429021737] [2020-10-29 12:12:42,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 12:12:42,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:42,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 12:12:42,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 12:12:42,288 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 6 states. [2020-10-29 12:12:42,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:42,498 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2020-10-29 12:12:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 12:12:42,499 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2020-10-29 12:12:42,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:42,500 INFO L225 Difference]: With dead ends: 56 [2020-10-29 12:12:42,500 INFO L226 Difference]: Without dead ends: 34 [2020-10-29 12:12:42,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:12:42,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-29 12:12:42,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2020-10-29 12:12:42,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 12:12:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-29 12:12:42,508 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 46 [2020-10-29 12:12:42,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:42,509 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-29 12:12:42,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 12:12:42,509 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-29 12:12:42,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-29 12:12:42,510 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:42,511 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:42,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:12:42,511 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:42,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:42,512 INFO L82 PathProgramCache]: Analyzing trace with hash 790018187, now seen corresponding path program 3 times [2020-10-29 12:12:42,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:42,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392679858] [2020-10-29 12:12:42,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:42,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:42,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:44,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:47,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:47,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 12:12:47,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:12:47,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 12:12:47,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:47,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:12:47,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:12:47,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:12:47,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:47,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:47,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:47,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:47,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:47,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:12:47,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:47,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:47,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:47,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:47,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:47,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:47,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:47,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:47,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:12:47,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:47,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 12:12:47,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:47,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:47,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:12:47,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:47,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:12:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:47,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:47,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:47,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:47,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:12:47,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:47,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 12:12:47,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:47,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:47,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:12:47,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:47,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:12:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:47,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:47,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:47,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:47,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 12:12:47,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:47,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 12:12:47,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:47,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:47,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:47,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:47,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:12:47,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 27 proven. 54 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-29 12:12:47,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392679858] [2020-10-29 12:12:47,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:47,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 12:12:47,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086539941] [2020-10-29 12:12:47,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:12:47,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:47,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:12:47,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:12:47,817 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 7 states. [2020-10-29 12:12:48,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:48,068 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2020-10-29 12:12:48,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:12:48,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-10-29 12:12:48,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:48,069 INFO L225 Difference]: With dead ends: 60 [2020-10-29 12:12:48,069 INFO L226 Difference]: Without dead ends: 36 [2020-10-29 12:12:48,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:12:48,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-29 12:12:48,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2020-10-29 12:12:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-29 12:12:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2020-10-29 12:12:48,086 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 52 [2020-10-29 12:12:48,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:48,086 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2020-10-29 12:12:48,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:12:48,087 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2020-10-29 12:12:48,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 12:12:48,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:48,093 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:48,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:12:48,094 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:48,095 INFO L82 PathProgramCache]: Analyzing trace with hash -804838007, now seen corresponding path program 4 times [2020-10-29 12:12:48,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:48,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1093125869] [2020-10-29 12:12:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:48,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:48,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:48,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:48,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:50,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:53,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:53,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 12:12:53,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:12:53,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 12:12:53,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:53,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:12:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-29 12:12:53,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:12:53,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:12:53,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:53,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:53,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:53,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:53,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:53,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:12:53,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:53,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:53,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:53,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:53,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:53,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:53,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:53,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:53,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:12:53,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:53,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 12:12:53,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:53,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:53,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:12:53,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:12:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:53,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 12:12:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:53,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:53,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:53,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:12:53,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:53,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 12:12:53,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:53,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:12:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:53,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:12:53,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:53,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 12:12:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:53,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:53,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:53,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:53,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 12:12:53,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:53,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 12:12:53,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:53,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:12:53,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:12:53,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:12:53,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:53,418 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 48 proven. 96 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 12:12:53,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1093125869] [2020-10-29 12:12:53,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:53,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 12:12:53,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588688682] [2020-10-29 12:12:53,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 12:12:53,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:53,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 12:12:53,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 12:12:53,421 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 8 states. [2020-10-29 12:12:53,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:53,733 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2020-10-29 12:12:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 12:12:53,734 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-10-29 12:12:53,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:53,735 INFO L225 Difference]: With dead ends: 63 [2020-10-29 12:12:53,735 INFO L226 Difference]: Without dead ends: 37 [2020-10-29 12:12:53,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:12:53,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-29 12:12:53,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-29 12:12:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-29 12:12:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2020-10-29 12:12:53,751 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 58 [2020-10-29 12:12:53,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:53,751 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2020-10-29 12:12:53,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 12:12:53,752 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2020-10-29 12:12:53,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-29 12:12:53,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:53,754 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:53,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:12:53,755 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:53,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:53,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1925848071, now seen corresponding path program 5 times [2020-10-29 12:12:53,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:53,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801369984] [2020-10-29 12:12:53,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:53,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:54,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:54,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 12:12:54,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:54,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-10-29 12:12:54,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:54,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:54,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:12:54,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 12:12:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:12:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:54,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:54,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:54,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:54,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:54,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:54,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:12:54,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:54,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:54,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:54,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:54,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:54,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:54,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:54,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:54,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:54,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:54,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:12:54,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:54,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:54,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:54,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:54,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 12:12:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:54,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:54,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:54,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:54,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:54,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:12:54,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:54,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:54,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:54,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:12:54,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:12:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:54,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:54,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:54,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:54,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:54,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:12:54,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:54,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:54,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 12:12:54,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:54,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-10-29 12:12:54,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801369984] [2020-10-29 12:12:54,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:12:54,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 12:12:54,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810347965] [2020-10-29 12:12:54,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 12:12:54,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:54,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 12:12:54,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 12:12:54,469 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 4 states. [2020-10-29 12:12:54,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:54,563 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2020-10-29 12:12:54,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 12:12:54,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-10-29 12:12:54,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:54,565 INFO L225 Difference]: With dead ends: 62 [2020-10-29 12:12:54,565 INFO L226 Difference]: Without dead ends: 39 [2020-10-29 12:12:54,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 12:12:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-29 12:12:54,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2020-10-29 12:12:54,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-29 12:12:54,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-10-29 12:12:54,577 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 64 [2020-10-29 12:12:54,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:54,578 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-10-29 12:12:54,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 12:12:54,580 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2020-10-29 12:12:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 12:12:54,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:54,583 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:54,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:12:54,585 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:54,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:54,586 INFO L82 PathProgramCache]: Analyzing trace with hash 700181509, now seen corresponding path program 1 times [2020-10-29 12:12:54,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:54,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585853848] [2020-10-29 12:12:54,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:54,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:54,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:55,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:55,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 12:12:55,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:55,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-10-29 12:12:55,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:55,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:12:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 12:12:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 12:12:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:55,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:55,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:55,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:55,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:55,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:55,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:12:55,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:55,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:55,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:55,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:55,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:55,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:55,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:55,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:55,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:55,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:12:55,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:55,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:55,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:55,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:55,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:55,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:55,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 12:12:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:55,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:55,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:55,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:55,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:55,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:12:55,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:55,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:55,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:55,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:55,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:55,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:55,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 12:12:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:55,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:55,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:55,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:55,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:55,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:12:55,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:55,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 12:12:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:55,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-10-29 12:12:55,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585853848] [2020-10-29 12:12:55,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:55,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 12:12:55,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007131332] [2020-10-29 12:12:55,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 12:12:55,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:55,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 12:12:55,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 12:12:55,533 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 5 states. [2020-10-29 12:12:55,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:55,640 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2020-10-29 12:12:55,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 12:12:55,641 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2020-10-29 12:12:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:55,642 INFO L225 Difference]: With dead ends: 64 [2020-10-29 12:12:55,642 INFO L226 Difference]: Without dead ends: 41 [2020-10-29 12:12:55,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 12:12:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-29 12:12:55,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-10-29 12:12:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-29 12:12:55,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-10-29 12:12:55,655 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 66 [2020-10-29 12:12:55,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:55,656 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-10-29 12:12:55,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 12:12:55,656 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2020-10-29 12:12:55,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 12:12:55,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:55,657 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:55,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:12:55,657 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:55,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:55,658 INFO L82 PathProgramCache]: Analyzing trace with hash -344345469, now seen corresponding path program 2 times [2020-10-29 12:12:55,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:55,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439446635] [2020-10-29 12:12:55,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:55,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:55,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:56,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:56,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 12:12:56,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:56,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 899 [2020-10-29 12:12:56,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:56,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:12:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 12:12:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:12:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:56,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:56,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:56,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:56,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:56,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:56,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:12:56,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:56,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:56,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:56,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:56,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:56,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:56,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:56,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:56,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:56,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:12:56,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:56,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:56,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:56,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:56,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 12:12:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:56,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:56,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:56,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:56,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:56,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:12:56,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:56,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:56,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:56,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:56,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:56,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:56,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 12:12:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:56,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:56,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:56,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:56,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:56,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:12:56,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:56,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:56,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:56,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 12:12:56,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:56,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-10-29 12:12:56,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439446635] [2020-10-29 12:12:56,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:56,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 12:12:56,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262303885] [2020-10-29 12:12:56,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 12:12:56,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:56,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 12:12:56,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 12:12:56,724 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 6 states. [2020-10-29 12:12:56,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:56,830 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2020-10-29 12:12:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 12:12:56,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-10-29 12:12:56,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:56,832 INFO L225 Difference]: With dead ends: 66 [2020-10-29 12:12:56,832 INFO L226 Difference]: Without dead ends: 43 [2020-10-29 12:12:56,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 12:12:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-10-29 12:12:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2020-10-29 12:12:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-29 12:12:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-29 12:12:56,842 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 68 [2020-10-29 12:12:56,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:56,843 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-29 12:12:56,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 12:12:56,847 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-29 12:12:56,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 12:12:56,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:56,848 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:56,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:12:56,849 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:56,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:56,849 INFO L82 PathProgramCache]: Analyzing trace with hash 887575937, now seen corresponding path program 3 times [2020-10-29 12:12:56,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:56,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263875011] [2020-10-29 12:12:56,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:56,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:56,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:58,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:58,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 12:12:58,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:12:58,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1421 [2020-10-29 12:12:58,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:58,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:58,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:12:58,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-29 12:12:58,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:12:58,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:58,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:12:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:58,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:58,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:12:58,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:58,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:12:58,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:58,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:58,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:58,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:58,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:58,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:12:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:58,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:58,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:58,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:58,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:12:58,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:58,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:58,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:58,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 12:12:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:58,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:58,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:58,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:58,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:58,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:12:58,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:58,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:12:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:58,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:12:58,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:12:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:58,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:58,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:12:58,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:12:58,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:12:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:12:58,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:12:58,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:12:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:12:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 12:12:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:12:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:12:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-10-29 12:12:58,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263875011] [2020-10-29 12:12:58,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:12:58,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 12:12:58,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944671015] [2020-10-29 12:12:58,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 12:12:58,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:12:58,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 12:12:58,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:12:58,429 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 7 states. [2020-10-29 12:12:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:12:58,562 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-10-29 12:12:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 12:12:58,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2020-10-29 12:12:58,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:12:58,564 INFO L225 Difference]: With dead ends: 67 [2020-10-29 12:12:58,564 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 12:12:58,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 12:12:58,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 12:12:58,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-29 12:12:58,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-29 12:12:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2020-10-29 12:12:58,571 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 70 [2020-10-29 12:12:58,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:12:58,571 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2020-10-29 12:12:58,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 12:12:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2020-10-29 12:12:58,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 12:12:58,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:12:58,573 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:12:58,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:12:58,573 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:12:58,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:12:58,574 INFO L82 PathProgramCache]: Analyzing trace with hash -646926593, now seen corresponding path program 4 times [2020-10-29 12:12:58,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:12:58,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148439218] [2020-10-29 12:12:58,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:12:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:12:58,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:12:58,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:13:05,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:13:05,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 12:13:05,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:13:05,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7092 [2020-10-29 12:13:05,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:13:05,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:13:05,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-29 12:13:05,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-29 12:13:05,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 12:13:05,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:13:14,435 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse65 (select |c_#memory_int| |c_main_~#x~0.base|))) (let ((.cse42 (select .cse65 (+ |c_main_~#x~0.offset| 4)))) (let ((.cse64 (store .cse65 |c_main_~#x~0.offset| .cse42))) (let ((.cse47 (select .cse65 |c_main_~#x~0.offset|)) (.cse46 (select .cse64 (+ |c_main_~#x~0.offset| 8))) (.cse45 (select .cse64 (+ |c_main_~#x~0.offset| 16))) (.cse43 (select .cse64 (+ |c_main_~#x~0.offset| 12)))) (let ((.cse21 (* .cse42 (- 1))) (.cse23 (* .cse43 (- 1))) (.cse24 (* .cse45 (- 1))) (.cse25 (* .cse46 (- 1))) (.cse26 (* .cse47 (- 1)))) (let ((.cse3 (div (+ .cse21 .cse23 .cse24 .cse25 .cse26 4) 5))) (let ((.cse30 (+ .cse3 4294967294)) (.cse44 (div (+ .cse3 4294967295) 4294967296)) (.cse15 (+ .cse42 .cse43 .cse45 .cse46 .cse47))) (let ((.cse49 (div .cse15 21474836480)) (.cse62 (* 4294967296 .cse44)) (.cse9 (* .cse3 (- 5))) (.cse34 (* 4294967296 (div .cse30 4294967296)))) (let ((.cse29 (<= (+ .cse42 .cse43 .cse45 .cse46 .cse47 (* 5 (div (+ .cse21 .cse23 .cse24 .cse25 .cse26 5) 5))) 4)) (.cse31 (<= (* 4294967296 (div (+ .cse3 6442450942) 4294967296)) .cse30)) (.cse37 (= .cse34 (+ |c_main_#t~ret7| .cse3 4294967295))) (.cse39 (<= (+ .cse42 .cse43 .cse45 .cse46 .cse47 1) 0)) (.cse27 (* 21474836480 (div (+ .cse9 10737418244) 21474836480))) (.cse16 (<= (+ .cse3 2147483648) .cse62)) (.cse19 (+ |c_main_#t~ret7| .cse3 4294967296)) (.cse48 (* .cse49 (- 21474836480))) (.cse61 (div (+ .cse42 .cse43 .cse45 .cse46 .cse47 (- 10737418240)) 21474836480)) (.cse28 (* 5 .cse3)) (.cse51 (<= 0 (+ .cse42 .cse43 .cse45 .cse46 (* 5 (div (+ .cse21 .cse23 .cse24 .cse25 .cse26) 5)) .cse47))) (.cse55 (<= 0 .cse15)) (.cse35 (+ |c_main_#t~ret7| .cse3)) (.cse63 (* 4294967296 (div (+ .cse3 2147483647) 4294967296)))) (let ((.cse10 (div (+ .cse9 4) 21474836480)) (.cse38 (div (+ .cse9 5) 21474836480)) (.cse6 (<= .cse62 .cse63)) (.cse7 (<= .cse3 .cse63)) (.cse4 (= .cse35 .cse62)) (.cse5 (< .cse62 .cse63)) (.cse12 (or .cse51 .cse55)) (.cse11 (<= 0 (+ (* 21474836480 .cse61) .cse28 21474836475))) (.cse0 (let ((.cse50 (let ((.cse60 (div (+ .cse42 (* .cse61 (- 21474836480)) .cse43 .cse45 .cse46 .cse47 (- 21474836480)) 5)) (.cse58 (div (+ .cse42 .cse43 .cse45 .cse48 .cse46 .cse47 (- 21474836480)) 5))) (and (or (let ((.cse59 (* .cse58 5))) (let ((.cse56 (* 4294967296 (div (+ .cse21 .cse23 .cse24 .cse25 .cse26 .cse59 42949672959) 21474836480))) (.cse57 (* 4294967296 (div (+ .cse21 .cse23 .cse24 .cse25 .cse26 .cse59 21474836484) 21474836480)))) (and .cse16 (<= .cse56 .cse57) (or (= .cse56 .cse19) (< .cse56 .cse57)) (= |c_main_#t~ret7| .cse58)))) (<= .cse3 (* 4294967296 (div (+ .cse3 .cse58) 4294967296))) (< .cse60 .cse58)) (<= .cse60 .cse58))))) (or (and (or (<= 0 (+ (* 5 |c_main_#t~ret7|) .cse28 (* 21474836480 .cse49))) .cse50) .cse51) (and .cse29 (let ((.cse54 (+ .cse42 .cse43 .cse45 .cse46 .cse47 4))) (or (let ((.cse52 (div (+ (* (div .cse54 21474836480) (- 21474836480)) .cse9 (- 21474836476)) 5)) (.cse53 (div (+ .cse42 .cse43 .cse45 .cse48 .cse46 .cse47 (- 21474836476)) 5))) (and .cse31 (<= .cse52 .cse53) .cse37 (or (< .cse52 .cse53) (= |c_main_#t~ret7| .cse53)))) (<= (* 21474836480 (div (+ (* |c_main_#t~ret7| (- 5)) .cse9 21474836479) 21474836480)) .cse54))) .cse39) (and .cse55 (or .cse50 (<= (+ .cse27 (* 21474836480 .cse44)) 0))))))) (and .cse0 (let ((.cse8 (* .cse38 (- 21474836480)))) (or (and (or (let ((.cse2 (* 4294967296 .cse10))) (let ((.cse1 (+ .cse2 .cse3 (div (+ .cse8 .cse9 4) 5)))) (and (<= .cse1 1) (or (< .cse1 1) (and (= 1 (+ |c_main_#t~ret7| .cse2 .cse3)) (or .cse4 .cse5) .cse6 .cse7))))) .cse11) .cse12 (let ((.cse20 (div (+ .cse8 .cse9 (- 21474836476)) 5))) (let ((.cse13 (* 5 .cse20)) (.cse14 (* 21474836480 (div (+ .cse9 (- 10737418236)) 21474836480)))) (or (and (<= (+ .cse13 .cse14 21474836480) .cse15) (or (let ((.cse22 (* .cse20 5))) (let ((.cse17 (* 4294967296 (div (+ .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 42949672959) 21474836480))) (.cse18 (* 4294967296 (div (+ .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 21474836484) 21474836480)))) (and .cse16 (or (< .cse17 .cse18) (= .cse19 .cse17)) (<= .cse17 .cse18) (= |c_main_#t~ret7| .cse20)))) (<= .cse3 (* 4294967296 (div (+ .cse20 .cse3) 4294967296))))) (<= 2147483648 |c_main_#t~ret7|) (<= (+ .cse13 .cse14 21474836485) .cse15) (<= (+ .cse27 .cse28) 5))))) (let ((.cse33 (* 4294967296 (div (+ .cse9 9) 21474836480)))) (and .cse29 (<= (* 4294967296 (div (+ .cse8 21474836479) 21474836480)) .cse30) (or .cse31 (let ((.cse32 (+ .cse3 (div (+ .cse8 .cse9 9) 5) .cse33))) (and (<= .cse32 1) (or (and (= 1 (+ |c_main_#t~ret7| .cse3 .cse33)) (= (+ .cse34 1) .cse35)) (< .cse32 1))))) (<= (+ .cse3 .cse33) 1) (or (let ((.cse36 (+ (div (+ .cse8 .cse9 (- 21474836471)) 5) .cse3 .cse33 4294967295))) (and (<= .cse36 0) (or (and (= (+ |c_main_#t~ret7| .cse3 .cse33 4294967295) 0) .cse37) (< .cse36 0)))) (<= (+ (* 21474836480 (div (+ .cse9 10737418249) 21474836480)) .cse28) 5)))))) (or (and .cse29 (or (<= 0 (+ .cse28 (* 21474836480 (div (+ .cse9 (- 10737418235)) 21474836480)) 21474836475)) (<= (* 21474836480 .cse10) (* 21474836480 .cse38))) .cse39) (and (or (and .cse6 .cse7 (or (let ((.cse40 (div (+ .cse42 .cse43 .cse45 .cse48 .cse46 .cse47) 5)) (.cse41 (div (+ .cse42 .cse43 (* (div (+ (* .cse44 (- 21474836480)) 21474836479) 21474836480) (- 21474836480)) .cse45 .cse46 .cse47) 5))) (and .cse4 (<= .cse40 .cse41) (or (= .cse41 |c_main_#t~ret7|) (< .cse40 .cse41)))) .cse5) .cse12 .cse0) .cse11) .cse0))))))))))))) is different from true [2020-10-29 12:13:16,489 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse62 (select |c_#memory_int| |c_main_~#x~0.base|))) (let ((.cse46 (select .cse62 |c_main_~#x~0.offset|)) (.cse44 (select .cse62 (+ |c_main_~#x~0.offset| 16))) (.cse45 (select .cse62 (+ |c_main_~#x~0.offset| 8))) (.cse43 (select .cse62 (+ |c_main_~#x~0.offset| 12))) (.cse41 (select .cse62 (+ |c_main_~#x~0.offset| 4)))) (let ((.cse20 (* .cse41 (- 1))) (.cse22 (* .cse43 (- 1))) (.cse23 (* .cse45 (- 1))) (.cse24 (* .cse44 (- 1))) (.cse25 (* .cse46 (- 1)))) (let ((.cse4 (div (+ .cse20 .cse22 .cse23 .cse24 .cse25 4) 5))) (let ((.cse32 (+ .cse4 4294967294)) (.cse42 (div (+ .cse4 4294967295) 4294967296))) (let ((.cse14 (+ .cse41 .cse43 .cse44 .cse45 .cse46)) (.cse61 (* 4294967296 .cse42)) (.cse34 (* 4294967296 (div .cse32 4294967296))) (.cse10 (* .cse4 (- 5)))) (let ((.cse27 (* 21474836480 (div (+ .cse10 10737418244) 21474836480))) (.cse36 (<= (* 4294967296 (div (+ .cse4 6442450942) 4294967296)) .cse32)) (.cse30 (= (+ .cse4 c_main_~ret~1 4294967295) .cse34)) (.cse31 (<= (+ .cse41 (* 5 (div (+ .cse20 .cse22 .cse23 .cse24 .cse25 5) 5)) .cse43 .cse45 .cse44 .cse46) 4)) (.cse38 (<= (+ .cse41 .cse43 .cse46 .cse44 .cse45 1) 0)) (.cse19 (+ .cse4 c_main_~ret~1 4294967296)) (.cse15 (<= (+ .cse4 2147483648) .cse61)) (.cse47 (* (div .cse14 21474836480) (- 21474836480))) (.cse35 (+ .cse4 c_main_~ret~1)) (.cse50 (+ .cse41 .cse43 .cse46 .cse44 .cse45)) (.cse51 (<= 0 (+ .cse41 .cse43 .cse45 .cse44 .cse46 (* 5 (div (+ .cse20 .cse22 .cse23 .cse24 .cse25) 5))))) (.cse60 (* 4294967296 (div (+ .cse4 2147483647) 4294967296))) (.cse26 (* 5 .cse4))) (let ((.cse11 (div (+ .cse10 4) 21474836480)) (.cse37 (div (+ .cse10 5) 21474836480)) (.cse1 (<= 0 (+ (* 21474836480 (div (+ .cse41 .cse43 .cse46 .cse44 .cse45 (- 10737418240)) 21474836480)) .cse26 21474836475))) (.cse2 (<= .cse61 .cse60)) (.cse0 (or (<= 0 .cse50) .cse51)) (.cse7 (< .cse61 .cse60)) (.cse6 (= .cse35 .cse61)) (.cse5 (<= .cse4 .cse60)) (.cse48 (let ((.cse49 (let ((.cse59 (div (+ .cse41 .cse43 .cse44 .cse45 .cse46 (* (div (+ .cse41 .cse43 .cse44 .cse45 .cse46 (- 10737418240)) 21474836480) (- 21474836480)) (- 21474836480)) 5)) (.cse55 (div (+ .cse41 .cse43 .cse44 .cse45 .cse46 .cse47 (- 21474836480)) 5))) (and (or (<= .cse4 (* 4294967296 (div (+ .cse4 .cse55) 4294967296))) (let ((.cse58 (* .cse55 5))) (let ((.cse56 (* 4294967296 (div (+ .cse20 .cse22 .cse23 .cse24 .cse25 .cse58 42949672959) 21474836480))) (.cse57 (* 4294967296 (div (+ .cse20 .cse22 .cse23 .cse24 .cse25 .cse58 21474836484) 21474836480)))) (and (or (< .cse56 .cse57) (= .cse19 .cse56)) .cse15 (= c_main_~ret~1 .cse55) (<= .cse56 .cse57)))) (< .cse59 .cse55)) (<= .cse59 .cse55))))) (or (and (or (<= (+ (* 21474836480 .cse42) .cse27) 0) .cse49) (<= 0 (+ .cse41 .cse43 .cse45 .cse44 .cse46))) (and (or .cse49 (<= 0 (+ (* 21474836480 (div .cse50 21474836480)) .cse26 10737418235))) .cse51) (and (let ((.cse52 (+ .cse41 .cse43 .cse46 .cse44 .cse45 4))) (or (<= .cse27 .cse52) (let ((.cse54 (div (+ (* (div .cse52 21474836480) (- 21474836480)) .cse10 (- 21474836476)) 5)) (.cse53 (div (+ .cse41 .cse43 .cse44 .cse45 .cse46 .cse47 (- 21474836476)) 5))) (and (or (= .cse53 c_main_~ret~1) (< .cse54 .cse53)) (<= .cse54 .cse53) .cse36 .cse30)))) .cse31 .cse38 (<= (+ .cse41 .cse43 .cse45 .cse44 .cse46 1) 0)))))) (and (let ((.cse9 (* .cse37 (- 21474836480)))) (or (and .cse0 (or .cse1 (let ((.cse3 (* 4294967296 .cse11))) (let ((.cse8 (+ .cse3 (div (+ .cse9 .cse10 4) 5) .cse4))) (and (or (and .cse2 (= 1 (+ .cse3 .cse4 c_main_~ret~1)) .cse5 (or .cse6 .cse7)) (< .cse8 1)) (<= .cse8 1))))) (let ((.cse16 (div (+ .cse9 .cse10 (- 21474836476)) 5))) (let ((.cse12 (* 5 .cse16)) (.cse13 (* 21474836480 (div (+ .cse10 (- 10737418236)) 21474836480)))) (or (<= (+ .cse12 .cse13 21474836485) .cse14) (and (<= (+ .cse12 .cse13 21474836480) .cse14) (or (let ((.cse21 (* .cse16 5))) (let ((.cse17 (* 4294967296 (div (+ .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 42949672959) 21474836480))) (.cse18 (* 4294967296 (div (+ .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 21474836484) 21474836480)))) (and .cse15 (= .cse16 c_main_~ret~1) (or (< .cse17 .cse18) (= .cse19 .cse17)) (<= .cse17 .cse18)))) (<= .cse4 (* 4294967296 (div (+ .cse16 .cse4) 4294967296))))) (<= (+ .cse26 .cse27) 5))))) (let ((.cse29 (* 4294967296 (div (+ .cse10 9) 21474836480)))) (and (or (let ((.cse28 (+ .cse29 (div (+ .cse9 .cse10 (- 21474836471)) 5) .cse4 4294967295))) (and (<= .cse28 0) (or (and (= 0 (+ .cse29 .cse4 c_main_~ret~1 4294967295)) .cse30) (< .cse28 0)))) (<= (+ (* 21474836480 (div (+ .cse10 10737418249) 21474836480)) .cse26) 5)) (<= (+ .cse29 .cse4) 1) .cse31 (<= (* 4294967296 (div (+ .cse9 21474836479) 21474836480)) .cse32) (or (let ((.cse33 (+ .cse29 (div (+ .cse9 .cse10 9) 5) .cse4))) (and (<= .cse33 1) (or (and (= 1 (+ .cse29 .cse4 c_main_~ret~1)) (= (+ .cse34 1) .cse35)) (< .cse33 1)))) .cse36))))) (or (and .cse31 .cse38 (or (<= (* 21474836480 .cse11) (* 21474836480 .cse37)) (<= 0 (+ (* 21474836480 (div (+ .cse10 (- 10737418235)) 21474836480)) .cse26 21474836475)))) (and (or .cse1 (and .cse2 .cse0 (or .cse7 (let ((.cse39 (div (+ .cse41 .cse43 .cse44 .cse45 .cse46 .cse47) 5)) (.cse40 (div (+ .cse41 (* (div (+ (* .cse42 (- 21474836480)) 21474836479) 21474836480) (- 21474836480)) .cse43 .cse44 .cse45 .cse46) 5))) (and .cse6 (or (< .cse39 .cse40) (= c_main_~ret~1 .cse40)) (<= .cse39 .cse40)))) .cse5 .cse48)) .cse48)) .cse48))))))))) is different from false [2020-10-29 12:13:21,789 WARN L193 SmtUtils]: Spent 4.68 s on a formula simplification. DAG size of input: 175 DAG size of output: 95 [2020-10-29 12:13:25,316 WARN L193 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 178 DAG size of output: 91 [2020-10-29 12:13:29,714 WARN L193 SmtUtils]: Spent 3.85 s on a formula simplification. DAG size of input: 179 DAG size of output: 89 [2020-10-29 12:13:31,530 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 182 DAG size of output: 91 [2020-10-29 12:13:32,959 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 183 DAG size of output: 103 [2020-10-29 12:13:39,613 WARN L193 SmtUtils]: Spent 6.43 s on a formula simplification. DAG size of input: 184 DAG size of output: 105 [2020-10-29 12:13:45,353 WARN L193 SmtUtils]: Spent 5.59 s on a formula simplification. DAG size of input: 184 DAG size of output: 104 [2020-10-29 12:13:46,713 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 178 DAG size of output: 107 [2020-10-29 12:13:56,154 WARN L193 SmtUtils]: Spent 6.58 s on a formula simplification. DAG size of input: 157 DAG size of output: 85 [2020-10-29 12:14:00,931 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 156 DAG size of output: 100 [2020-10-29 12:14:01,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:14:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:01,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:01,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:14:01,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:14:01,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:14:01,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:01,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:01,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:14:01,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:01,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:14:01,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:14:01,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 12:14:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:14:02,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:04,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:14:06,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:14:06,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:14:06,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:14:06,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 12:14:06,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:14:06,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:14:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 12:14:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:14:06,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 12:14:06,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:16:08,784 WARN L193 SmtUtils]: Spent 1.85 m on a formula simplification. DAG size of input: 349 DAG size of output: 113 [2020-10-29 12:16:08,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 12:16:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:16:09,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:12,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:14,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:16:17,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:16:17,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 12:16:17,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:16:17,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7860 [2020-10-29 12:16:17,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:16:17,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:16:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:16:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:16:17,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 12:16:17,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0