/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/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:30:04,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:30:04,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:30:04,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:30:04,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:30:04,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:30:04,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:30:04,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:30:04,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:30:04,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:30:04,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:30:04,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:30:04,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:30:04,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:30:04,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:30:04,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:30:04,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:30:04,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:30:04,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:30:04,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:30:04,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:30:04,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:30:04,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:30:04,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:30:04,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:30:04,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:30:04,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:30:04,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:30:04,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:30:04,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:30:04,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:30:04,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:30:04,556 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:30:04,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:30:04,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:30:04,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:30:04,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:30:04,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:30:04,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:30:04,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:30:04,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:30:04,585 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 12:30:04,636 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:30:04,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:30:04,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:30:04,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:30:04,641 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:30:04,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:30:04,641 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:30:04,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:30:04,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:30:04,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:30:04,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:30:04,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:30:04,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:30:04,644 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:30:04,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:30:04,644 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:30:04,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:30:04,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:30:04,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:30:04,645 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:30:04,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:30:04,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:30:04,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:30:04,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:30:04,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:30:04,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:30:04,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:30:04,647 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:30:04,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:30:04,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:30:05,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:30:05,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:30:05,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:30:05,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:30:05,064 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:30:05,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-29 12:30:05,154 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67f2401b1/d982457ca9f84206b40769942f8c6fca/FLAG14027040e [2020-10-29 12:30:05,930 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:30:05,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-29 12:30:05,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67f2401b1/d982457ca9f84206b40769942f8c6fca/FLAG14027040e [2020-10-29 12:30:06,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/67f2401b1/d982457ca9f84206b40769942f8c6fca [2020-10-29 12:30:06,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:30:06,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:30:06,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:30:06,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:30:06,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:30:06,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a10a40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06, skipping insertion in model container [2020-10-29 12:30:06,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:30:06,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:30:06,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:30:06,541 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:30:06,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:30:06,647 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:30:06,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06 WrapperNode [2020-10-29 12:30:06,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:30:06,649 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:30:06,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:30:06,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:30:06,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (1/1) ... [2020-10-29 12:30:06,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:30:06,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:30:06,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:30:06,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:30:06,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (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 12:30:06,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:30:06,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:30:06,795 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:30:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:30:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:30:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:30:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:30:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-29 12:30:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-29 12:30:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:30:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:30:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:30:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:30:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:30:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:30:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:30:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:30:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:30:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:30:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:30:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:30:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:30:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:30:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:30:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:30:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:30:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-29 12:30:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-29 12:30:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:30:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:30:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:30:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:30:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:30:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:30:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:30:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:30:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:30:07,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:30:07,706 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:30:07,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:30:07 BoogieIcfgContainer [2020-10-29 12:30:07,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:30:07,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:30:07,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:30:07,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:30:07,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:30:06" (1/3) ... [2020-10-29 12:30:07,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79051ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:30:07, skipping insertion in model container [2020-10-29 12:30:07,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:30:06" (2/3) ... [2020-10-29 12:30:07,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79051ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:30:07, skipping insertion in model container [2020-10-29 12:30:07,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:30:07" (3/3) ... [2020-10-29 12:30:07,721 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c [2020-10-29 12:30:07,733 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:30:07,739 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:30:07,752 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:30:07,781 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:30:07,781 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:30:07,781 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:30:07,781 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:30:07,782 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:30:07,782 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:30:07,782 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:30:07,782 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:30:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-10-29 12:30:07,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 12:30:07,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:07,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:07,816 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:07,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:07,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1652664608, now seen corresponding path program 1 times [2020-10-29 12:30:07,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:07,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934947716] [2020-10-29 12:30:07,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:08,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:08,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:08,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:30:08,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-10-29 12:30:08,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:08,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:08,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:08,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 12:30:08,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:08,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:30:08,936 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:30:08,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:08,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:08,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:08,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:08,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:08,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:30:08,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:08,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:08,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:08,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:08,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:08,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:08,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:08,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:08,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:08,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:08,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:08,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:08,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:08,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:09,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:30:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:09,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:09,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:09,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:09,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:09,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:09,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:09,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:30:09,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:09,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:30:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:09,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:09,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:09,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:09,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:09,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:30:09,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:09,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:09,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:09,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:09,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:09,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:09,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:30:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:09,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:09,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:09,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:09,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:09,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:09,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:09,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:09,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:30:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:09,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:09,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:09,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:09,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:09,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:30:09,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:09,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:09,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:09,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:09,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:09,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:09,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:30:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:09,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:09,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:09,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:09,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:09,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:30:09,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:09,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:09,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:09,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:09,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:09,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:30:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:09,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:09,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:09,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:09,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:09,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:30:09,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:09,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:09,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:09,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:09,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 12:30:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:09,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:09,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:09,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:09,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:09,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:30:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:09,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:09,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:30:09,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934947716] [2020-10-29 12:30:09,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:09,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 12:30:09,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023964771] [2020-10-29 12:30:09,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 12:30:09,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:09,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 12:30:09,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-29 12:30:09,300 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 8 states. [2020-10-29 12:30:10,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:10,460 INFO L93 Difference]: Finished difference Result 219 states and 317 transitions. [2020-10-29 12:30:10,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 12:30:10,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-10-29 12:30:10,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:10,474 INFO L225 Difference]: With dead ends: 219 [2020-10-29 12:30:10,474 INFO L226 Difference]: Without dead ends: 126 [2020-10-29 12:30:10,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:30:10,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-29 12:30:10,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-10-29 12:30:10,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-29 12:30:10,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 187 transitions. [2020-10-29 12:30:10,540 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 187 transitions. Word has length 68 [2020-10-29 12:30:10,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:10,540 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 187 transitions. [2020-10-29 12:30:10,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 12:30:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 187 transitions. [2020-10-29 12:30:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 12:30:10,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:10,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:10,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:30:10,545 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:10,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:10,545 INFO L82 PathProgramCache]: Analyzing trace with hash 2096565282, now seen corresponding path program 1 times [2020-10-29 12:30:10,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:10,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414826564] [2020-10-29 12:30:10,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:10,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:11,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:11,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:30:11,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:11,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 874 [2020-10-29 12:30:11,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:11,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:30:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:30:11,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:30:11,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:11,709 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:30:11,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:11,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:11,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:11,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:11,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:11,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:30:11,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:11,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:11,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:11,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:11,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:11,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:11,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:11,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:11,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:30:11,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:11,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:11,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:11,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:11,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:11,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:11,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:30:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:11,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:11,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:11,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:11,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:11,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:11,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:11,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:30:11,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:11,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:11,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:30:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:11,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:11,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:11,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:11,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:30:11,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:11,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:11,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:11,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:11,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:30:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:11,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:11,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:11,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:11,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:11,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:11,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:11,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:11,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:11,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:11,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:11,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:11,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:30:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:11,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:11,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:11,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:11,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:11,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:30:11,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:11,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:11,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:11,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:11,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:11,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:11,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 12:30:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:11,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:11,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:11,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:11,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:11,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:11,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:11,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:11,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:11,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:12,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 12:30:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:12,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:12,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:12,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:12,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:12,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:30:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:12,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 12:30:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:12,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:12,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:12,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:12,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:12,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:12,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:12,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:12,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:12,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:30:12,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:12,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:30:12,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414826564] [2020-10-29 12:30:12,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:12,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-29 12:30:12,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933402289] [2020-10-29 12:30:12,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 12:30:12,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:12,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 12:30:12,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-29 12:30:12,061 INFO L87 Difference]: Start difference. First operand 126 states and 187 transitions. Second operand 14 states. [2020-10-29 12:30:12,433 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:30:12,693 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:30:13,124 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-29 12:30:13,430 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-29 12:30:15,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:15,318 INFO L93 Difference]: Finished difference Result 220 states and 319 transitions. [2020-10-29 12:30:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 12:30:15,319 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 68 [2020-10-29 12:30:15,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:15,322 INFO L225 Difference]: With dead ends: 220 [2020-10-29 12:30:15,323 INFO L226 Difference]: Without dead ends: 137 [2020-10-29 12:30:15,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:30:15,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-29 12:30:15,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 126. [2020-10-29 12:30:15,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-29 12:30:15,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2020-10-29 12:30:15,350 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 68 [2020-10-29 12:30:15,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:15,350 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2020-10-29 12:30:15,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 12:30:15,351 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2020-10-29 12:30:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 12:30:15,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:15,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:15,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:30:15,355 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:15,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:15,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1450431595, now seen corresponding path program 1 times [2020-10-29 12:30:15,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:15,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19687989] [2020-10-29 12:30:15,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:15,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:15,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:15,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:15,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:18,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:20,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:20,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-29 12:30:20,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:30:20,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 12:30:20,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:20,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:20,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:30:20,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:30:20,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 12:30:20,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:20,699 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:30:20,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:20,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:20,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:20,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:20,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:20,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:30:20,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:20,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:20,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:20,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:20,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:20,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:20,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:30:20,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:20,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 12:30:20,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:20,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:30:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:20,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:30:20,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:20,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:30:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:20,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:20,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:20,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:20,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:20,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:20,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:20,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:20,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:20,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:20,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:30:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:20,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:20,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:20,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:20,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:20,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 12:30:20,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:20,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:20,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:20,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:20,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:20,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:30:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:21,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:21,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:21,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:21,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:21,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:30:21,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:21,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:21,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:21,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:21,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:30:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:21,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:21,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:21,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:21,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:21,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 12:30:21,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:21,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:21,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:30:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:21,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:21,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:21,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:21,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:21,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:30:21,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:21,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:21,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:21,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:21,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:21,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:30:21,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:30:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:21,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:21,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:21,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:21,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:21,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:30:21,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:21,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:21,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:21,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:21,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:21,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:30:21,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:21,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:21,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:21,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:30:21,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:21,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:30:21,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:21,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:30:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:30:21,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:30:21,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19687989] [2020-10-29 12:30:21,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:21,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 12:30:21,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726363450] [2020-10-29 12:30:21,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 12:30:21,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:21,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 12:30:21,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:30:21,494 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand 19 states. [2020-10-29 12:30:21,891 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:30:22,173 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-29 12:30:22,437 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:30:22,716 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:30:22,980 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:30:27,342 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-29 12:30:27,590 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:30:27,835 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:30:28,088 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:30:28,326 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:30:36,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:36,653 INFO L93 Difference]: Finished difference Result 1010 states and 1399 transitions. [2020-10-29 12:30:36,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-10-29 12:30:36,653 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 98 [2020-10-29 12:30:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:36,668 INFO L225 Difference]: With dead ends: 1010 [2020-10-29 12:30:36,668 INFO L226 Difference]: Without dead ends: 933 [2020-10-29 12:30:36,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4078 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=2092, Invalid=9464, Unknown=0, NotChecked=0, Total=11556 [2020-10-29 12:30:36,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-10-29 12:30:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 903. [2020-10-29 12:30:36,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2020-10-29 12:30:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1258 transitions. [2020-10-29 12:30:36,828 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1258 transitions. Word has length 98 [2020-10-29 12:30:36,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:36,828 INFO L481 AbstractCegarLoop]: Abstraction has 903 states and 1258 transitions. [2020-10-29 12:30:36,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 12:30:36,829 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1258 transitions. [2020-10-29 12:30:36,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:30:36,834 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:36,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:36,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:30:36,835 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:36,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:36,835 INFO L82 PathProgramCache]: Analyzing trace with hash 539130651, now seen corresponding path program 1 times [2020-10-29 12:30:36,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:36,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [972022087] [2020-10-29 12:30:36,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:36,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:36,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:37,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:37,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:37,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:37,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:41,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:41,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:30:41,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:30:41,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:30:41,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:41,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:41,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:30:41,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:30:41,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 12:30:41,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,158 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:30:42,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:42,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:30:42,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:42,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:42,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:30:42,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:42,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:30:42,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:42,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:30:42,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:30:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:42,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:42,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:30:42,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:42,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:42,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:30:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:42,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:42,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:30:42,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:30:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:42,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:42,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:30:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:42,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:42,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:30:42,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:42,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:30:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:42,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:42,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:30:42,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:42,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:42,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:30:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:42,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:42,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:42,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:42,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:42,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:42,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:30:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:42,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:42,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:42,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:42,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:42,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:30:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:42,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:42,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:42,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:30:42,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:30:42,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:30:42,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:42,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:30:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:42,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:30:42,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [972022087] [2020-10-29 12:30:42,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:42,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:30:42,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322379693] [2020-10-29 12:30:42,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:30:42,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:42,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:30:42,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:30:42,585 INFO L87 Difference]: Start difference. First operand 903 states and 1258 transitions. Second operand 13 states. [2020-10-29 12:30:42,909 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:30:43,423 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2020-10-29 12:30:43,754 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-29 12:30:46,663 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-29 12:30:47,280 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2020-10-29 12:30:48,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:48,089 INFO L93 Difference]: Finished difference Result 4077 states and 5757 transitions. [2020-10-29 12:30:48,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 12:30:48,093 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 100 [2020-10-29 12:30:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:48,118 INFO L225 Difference]: With dead ends: 4077 [2020-10-29 12:30:48,118 INFO L226 Difference]: Without dead ends: 3223 [2020-10-29 12:30:48,125 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 12:30:48,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2020-10-29 12:30:48,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 3214. [2020-10-29 12:30:48,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3214 states. [2020-10-29 12:30:48,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 4484 transitions. [2020-10-29 12:30:48,439 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 4484 transitions. Word has length 100 [2020-10-29 12:30:48,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:48,441 INFO L481 AbstractCegarLoop]: Abstraction has 3214 states and 4484 transitions. [2020-10-29 12:30:48,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:30:48,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 4484 transitions. [2020-10-29 12:30:48,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:30:48,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:48,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:48,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:30:48,446 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:48,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:48,447 INFO L82 PathProgramCache]: Analyzing trace with hash -724939821, now seen corresponding path program 1 times [2020-10-29 12:30:48,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:48,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237615633] [2020-10-29 12:30:48,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:48,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:48,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:48,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:48,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:53,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:53,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:53,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:30:53,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:30:53,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 12:30:53,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:53,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:53,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 12:30:53,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:30:53,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 12:30:53,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:53,784 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:30:53,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:53,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:53,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:53,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:53,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:53,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 12:30:53,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:53,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:53,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:53,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:53,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:53,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 12:30:53,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:53,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:53,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:30:53,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:53,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 12:30:53,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:53,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:30:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:53,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:30:53,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:30:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:54,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:30:54,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:54,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:54,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:30:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:54,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:30:54,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:54,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:30:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:54,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:30:54,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:54,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:54,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:30:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:54,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:30:54,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:54,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:54,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:54,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:30:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:54,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:30:54,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:54,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:54,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:54,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:30:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:54,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:30:54,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:54,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:54,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:54,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:30:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:54,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:54,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:54,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:30:54,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:54,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:30:54,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:54,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:30:54,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:30:54,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:30:54,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237615633] [2020-10-29 12:30:54,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:30:54,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-29 12:30:54,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873621027] [2020-10-29 12:30:54,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 12:30:54,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:54,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 12:30:54,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:30:54,485 INFO L87 Difference]: Start difference. First operand 3214 states and 4484 transitions. Second operand 19 states. [2020-10-29 12:30:54,800 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:30:55,041 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-29 12:30:55,325 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-29 12:30:55,584 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:30:55,878 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:30:56,759 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:30:57,632 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-29 12:30:58,814 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-29 12:31:00,520 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-29 12:31:00,850 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:31:02,566 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-29 12:31:05,682 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:31:05,965 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-29 12:31:07,212 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 12:31:08,677 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-29 12:31:09,647 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2020-10-29 12:31:13,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:13,193 INFO L93 Difference]: Finished difference Result 9283 states and 14340 transitions. [2020-10-29 12:31:13,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2020-10-29 12:31:13,193 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 100 [2020-10-29 12:31:13,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:13,244 INFO L225 Difference]: With dead ends: 9283 [2020-10-29 12:31:13,245 INFO L226 Difference]: Without dead ends: 6118 [2020-10-29 12:31:13,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5620 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=2798, Invalid=11482, Unknown=0, NotChecked=0, Total=14280 [2020-10-29 12:31:13,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6118 states. [2020-10-29 12:31:13,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6118 to 4334. [2020-10-29 12:31:13,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4334 states. [2020-10-29 12:31:13,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4334 states to 4334 states and 6086 transitions. [2020-10-29 12:31:13,842 INFO L78 Accepts]: Start accepts. Automaton has 4334 states and 6086 transitions. Word has length 100 [2020-10-29 12:31:13,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:13,843 INFO L481 AbstractCegarLoop]: Abstraction has 4334 states and 6086 transitions. [2020-10-29 12:31:13,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 12:31:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4334 states and 6086 transitions. [2020-10-29 12:31:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:31:13,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:13,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:13,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:31:13,850 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:13,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:13,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1548703519, now seen corresponding path program 1 times [2020-10-29 12:31:13,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:13,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1534773104] [2020-10-29 12:31:13,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:13,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:13,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:14,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:14,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:14,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:14,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:18,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:18,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:18,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:31:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 12:31:18,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:18,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:31:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 12:31:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,211 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:19,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:19,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:31:19,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:31:19,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:19,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:31:19,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:31:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:31:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:19,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:19,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:19,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:19,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:19,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:31:19,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:19,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:19,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:19,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:19,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:19,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:19,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:19,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:19,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:31:19,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:19,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:19,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:31:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:19,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:31:19,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:31:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:19,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:31:19,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:31:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:19,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:31:19,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:19,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:19,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:19,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:19,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:19,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:19,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:19,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:19,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:19,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:31:19,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1534773104] [2020-10-29 12:31:19,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:19,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:31:19,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943168474] [2020-10-29 12:31:19,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:31:19,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:19,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:31:19,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:19,608 INFO L87 Difference]: Start difference. First operand 4334 states and 6086 transitions. Second operand 15 states. [2020-10-29 12:31:20,162 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-29 12:31:20,432 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:21,267 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-29 12:31:21,490 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-29 12:31:21,766 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:22,050 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:22,289 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:22,854 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-29 12:31:23,048 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:23,431 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-29 12:31:23,653 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:23,902 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:24,150 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:24,463 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-29 12:31:24,668 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-29 12:31:24,843 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:25,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:25,103 INFO L93 Difference]: Finished difference Result 9330 states and 13022 transitions. [2020-10-29 12:31:25,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:31:25,104 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-29 12:31:25,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:25,132 INFO L225 Difference]: With dead ends: 9330 [2020-10-29 12:31:25,132 INFO L226 Difference]: Without dead ends: 5045 [2020-10-29 12:31:25,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 12:31:25,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5045 states. [2020-10-29 12:31:25,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5045 to 4731. [2020-10-29 12:31:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4731 states. [2020-10-29 12:31:25,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4731 states to 4731 states and 6629 transitions. [2020-10-29 12:31:25,623 INFO L78 Accepts]: Start accepts. Automaton has 4731 states and 6629 transitions. Word has length 100 [2020-10-29 12:31:25,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:25,624 INFO L481 AbstractCegarLoop]: Abstraction has 4731 states and 6629 transitions. [2020-10-29 12:31:25,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:31:25,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4731 states and 6629 transitions. [2020-10-29 12:31:25,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:31:25,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:25,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:25,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:31:25,628 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:25,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:25,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1786715157, now seen corresponding path program 1 times [2020-10-29 12:31:25,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:25,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327558463] [2020-10-29 12:31:25,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:25,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:25,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:26,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:30,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:30,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:30,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:30,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:31:30,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 12:31:30,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:30,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-29 12:31:30,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 12:31:30,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:31,032 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:31,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:31,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:31:31,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:31,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:31:31,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:31,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:31:31,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:31,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:31,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 12:31:31,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:31,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:31,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:31,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:31,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:31,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:31,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:31,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:31:31,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:31,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:31,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:31,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:31:31,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:31,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:31,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:31,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:31:31,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:31,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:31,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:31,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:31,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:31:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:31,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:31,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:31,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:31:31,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:31,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:31,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:31:31,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:31:31,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:31,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:31:31,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:31,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:31,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:31,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:31,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:31,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:31,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:31,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:31,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:31,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:31,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:31:31,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327558463] [2020-10-29 12:31:31,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:31,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:31:31,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512594504] [2020-10-29 12:31:31,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:31:31,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:31,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:31:31,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:31:31,542 INFO L87 Difference]: Start difference. First operand 4731 states and 6629 transitions. Second operand 11 states. [2020-10-29 12:31:31,839 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:34,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:34,770 INFO L93 Difference]: Finished difference Result 12960 states and 18285 transitions. [2020-10-29 12:31:34,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:31:34,770 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-29 12:31:34,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:34,821 INFO L225 Difference]: With dead ends: 12960 [2020-10-29 12:31:34,821 INFO L226 Difference]: Without dead ends: 8619 [2020-10-29 12:31:34,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:31:34,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8619 states. [2020-10-29 12:31:35,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8619 to 8574. [2020-10-29 12:31:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8574 states. [2020-10-29 12:31:35,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8574 states to 8574 states and 11935 transitions. [2020-10-29 12:31:35,783 INFO L78 Accepts]: Start accepts. Automaton has 8574 states and 11935 transitions. Word has length 100 [2020-10-29 12:31:35,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:35,783 INFO L481 AbstractCegarLoop]: Abstraction has 8574 states and 11935 transitions. [2020-10-29 12:31:35,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:31:35,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8574 states and 11935 transitions. [2020-10-29 12:31:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:31:35,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:35,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:35,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:31:35,788 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:35,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:35,789 INFO L82 PathProgramCache]: Analyzing trace with hash -391469729, now seen corresponding path program 1 times [2020-10-29 12:31:35,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:35,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266727783] [2020-10-29 12:31:35,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:35,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:35,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:35,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:35,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:36,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:39,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:40,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 12:31:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:41,209 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:41,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 12:31:41,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:31:41,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:41,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:41,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:31:41,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:31:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:41,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:31:41,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:31:41,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:41,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:41,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:41,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:41,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:41,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:41,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:41,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:31:41,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:41,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:41,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:41,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:41,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:41,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:41,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:41,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:41,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:41,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:41,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:41,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:41,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:41,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:41,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:41,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:31:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:41,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:31:41,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:31:41,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:41,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:31:41,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:41,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:41,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:41,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:41,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:41,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:41,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:41,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:41,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:41,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:41,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:41,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:41,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:41,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:31:41,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266727783] [2020-10-29 12:31:41,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:41,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:31:41,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463681742] [2020-10-29 12:31:41,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:31:41,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:41,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:31:41,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:41,627 INFO L87 Difference]: Start difference. First operand 8574 states and 11935 transitions. Second operand 15 states. [2020-10-29 12:31:42,156 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-29 12:31:42,434 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:43,304 WARN L193 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-29 12:31:43,481 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-29 12:31:43,762 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:44,045 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:44,631 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-29 12:31:44,851 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:45,074 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:45,420 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-29 12:31:45,643 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:45,884 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:46,122 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-29 12:31:46,301 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-29 12:31:46,449 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:46,702 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:47,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:31:47,503 INFO L93 Difference]: Finished difference Result 18495 states and 25485 transitions. [2020-10-29 12:31:47,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:31:47,503 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-29 12:31:47,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:31:47,554 INFO L225 Difference]: With dead ends: 18495 [2020-10-29 12:31:47,554 INFO L226 Difference]: Without dead ends: 10170 [2020-10-29 12:31:47,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 12:31:47,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10170 states. [2020-10-29 12:31:48,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10170 to 8505. [2020-10-29 12:31:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8505 states. [2020-10-29 12:31:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8505 states to 8505 states and 11829 transitions. [2020-10-29 12:31:48,596 INFO L78 Accepts]: Start accepts. Automaton has 8505 states and 11829 transitions. Word has length 100 [2020-10-29 12:31:48,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:31:48,597 INFO L481 AbstractCegarLoop]: Abstraction has 8505 states and 11829 transitions. [2020-10-29 12:31:48,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:31:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 8505 states and 11829 transitions. [2020-10-29 12:31:48,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:31:48,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:31:48,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:48,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:31:48,600 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:31:48,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:31:48,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1129503967, now seen corresponding path program 1 times [2020-10-29 12:31:48,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:31:48,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43247473] [2020-10-29 12:31:48,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:31:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:48,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:48,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:48,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:48,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:49,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:49,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:31:53,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:31:53,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 12:31:53,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:31:53,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:31:53,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 12:31:53,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,929 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:31:53,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:31:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:31:53,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:31:53,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:53,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:31:53,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:31:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:31:53,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:31:53,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:31:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:53,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:31:53,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:53,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:31:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:53,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:53,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:53,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:31:53,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:53,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:53,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:53,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:54,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:31:54,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:54,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:31:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:54,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:54,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:54,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:54,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:54,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:31:54,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:54,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:54,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:54,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:54,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:31:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:54,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:54,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:54,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:54,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:54,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:31:54,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:54,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:31:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:31:54,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:31:54,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:54,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:31:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:54,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:54,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:31:54,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:54,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:31:54,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:54,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:31:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:31:54,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:31:54,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:54,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:31:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:54,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:54,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:54,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:54,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:31:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:54,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:54,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:54,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:31:54,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:31:54,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:54,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:31:54,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:54,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:54,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:31:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:31:54,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:31:54,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:31:54,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:31:54,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:31:54,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:31:54,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:31:54,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:31:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:31:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:31:54,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:31:54,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:31:54,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:31:54,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43247473] [2020-10-29 12:31:54,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:31:54,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:31:54,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207054204] [2020-10-29 12:31:54,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:31:54,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:31:54,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:31:54,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:31:54,272 INFO L87 Difference]: Start difference. First operand 8505 states and 11829 transitions. Second operand 15 states. [2020-10-29 12:31:54,818 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-29 12:31:55,091 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:31:55,950 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-29 12:31:56,126 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2020-10-29 12:31:56,413 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:56,997 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 157 [2020-10-29 12:31:57,204 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:57,418 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:57,669 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-10-29 12:31:58,074 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2020-10-29 12:31:58,297 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:58,543 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-29 12:31:58,728 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-10-29 12:31:58,915 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-10-29 12:31:59,155 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:31:59,467 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-29 12:32:00,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:00,171 INFO L93 Difference]: Finished difference Result 19832 states and 27431 transitions. [2020-10-29 12:32:00,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:32:00,172 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-29 12:32:00,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:00,224 INFO L225 Difference]: With dead ends: 19832 [2020-10-29 12:32:00,224 INFO L226 Difference]: Without dead ends: 11471 [2020-10-29 12:32:00,333 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=326, Invalid=864, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 12:32:00,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11471 states. [2020-10-29 12:32:01,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11471 to 8414. [2020-10-29 12:32:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8414 states. [2020-10-29 12:32:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8414 states to 8414 states and 11707 transitions. [2020-10-29 12:32:01,129 INFO L78 Accepts]: Start accepts. Automaton has 8414 states and 11707 transitions. Word has length 100 [2020-10-29 12:32:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:01,129 INFO L481 AbstractCegarLoop]: Abstraction has 8414 states and 11707 transitions. [2020-10-29 12:32:01,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:32:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 8414 states and 11707 transitions. [2020-10-29 12:32:01,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:32:01,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:01,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:01,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:32:01,132 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:01,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:01,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1681616033, now seen corresponding path program 1 times [2020-10-29 12:32:01,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:01,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [447902308] [2020-10-29 12:32:01,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:01,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:01,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:01,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:01,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:02,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:02,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:32:06,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:32:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 12:32:06,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:32:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:32:06,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 12:32:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,425 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:32:06,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:06,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:32:06,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:06,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:06,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:32:06,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:32:06,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:32:06,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:32:06,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:06,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:32:06,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:32:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:06,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:06,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:06,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:06,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:32:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:06,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:06,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:06,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:06,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:32:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:32:06,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:32:06,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:32:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:32:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:06,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:06,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:32:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:06,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:06,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:06,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:06,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:06,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:32:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:06,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:06,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:06,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:06,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:06,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:32:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:06,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:06,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:32:06,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:06,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:06,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:06,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:32:06,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:06,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:06,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:32:06,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [447902308] [2020-10-29 12:32:06,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:06,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:32:06,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643439941] [2020-10-29 12:32:06,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:32:06,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:06,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:32:06,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:32:06,778 INFO L87 Difference]: Start difference. First operand 8414 states and 11707 transitions. Second operand 15 states. [2020-10-29 12:32:07,054 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:32:07,293 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:32:07,875 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:32:08,335 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-29 12:32:11,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:11,145 INFO L93 Difference]: Finished difference Result 21421 states and 29632 transitions. [2020-10-29 12:32:11,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 12:32:11,146 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 100 [2020-10-29 12:32:11,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:11,193 INFO L225 Difference]: With dead ends: 21421 [2020-10-29 12:32:11,193 INFO L226 Difference]: Without dead ends: 13091 [2020-10-29 12:32:11,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 12:32:11,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13091 states. [2020-10-29 12:32:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13091 to 8324. [2020-10-29 12:32:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8324 states. [2020-10-29 12:32:12,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8324 states to 8324 states and 11593 transitions. [2020-10-29 12:32:12,113 INFO L78 Accepts]: Start accepts. Automaton has 8324 states and 11593 transitions. Word has length 100 [2020-10-29 12:32:12,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:12,114 INFO L481 AbstractCegarLoop]: Abstraction has 8324 states and 11593 transitions. [2020-10-29 12:32:12,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:32:12,114 INFO L276 IsEmpty]: Start isEmpty. Operand 8324 states and 11593 transitions. [2020-10-29 12:32:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 12:32:12,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:12,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:12,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:32:12,116 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:12,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:12,117 INFO L82 PathProgramCache]: Analyzing trace with hash -569477013, now seen corresponding path program 1 times [2020-10-29 12:32:12,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:12,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327674074] [2020-10-29 12:32:12,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:12,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:12,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:12,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:12,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:15,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 12:32:17,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 12:32:17,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 12:32:17,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 12:32:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 12:32:17,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 12:32:17,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,428 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:32:17,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:17,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:32:17,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:17,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:17,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:17,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 12:32:17,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:32:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:17,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:17,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:17,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:32:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:32:17,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:32:17,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:32:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:17,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:32:17,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:32:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:17,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:17,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:17,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 12:32:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:17,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:32:17,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:17,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:17,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:32:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:17,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:32:17,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:17,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:17,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:17,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:32:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:17,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:32:17,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:17,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:17,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 12:32:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:17,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:17,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:32:17,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:17,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:32:17,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327674074] [2020-10-29 12:32:17,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:17,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-29 12:32:17,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911294188] [2020-10-29 12:32:17,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 12:32:17,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:17,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 12:32:17,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2020-10-29 12:32:17,918 INFO L87 Difference]: Start difference. First operand 8324 states and 11593 transitions. Second operand 20 states. [2020-10-29 12:32:18,239 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:32:18,507 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-29 12:32:18,775 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:32:19,055 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:32:19,339 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-29 12:32:23,372 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-29 12:32:23,647 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-29 12:32:23,908 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-29 12:32:24,169 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-29 12:32:24,429 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-29 12:32:27,475 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-29 12:32:34,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:34,836 INFO L93 Difference]: Finished difference Result 22220 states and 32197 transitions. [2020-10-29 12:32:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-10-29 12:32:34,838 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 100 [2020-10-29 12:32:34,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:34,903 INFO L225 Difference]: With dead ends: 22220 [2020-10-29 12:32:34,903 INFO L226 Difference]: Without dead ends: 14700 [2020-10-29 12:32:34,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3745 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=2126, Invalid=8794, Unknown=0, NotChecked=0, Total=10920 [2020-10-29 12:32:34,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14700 states. [2020-10-29 12:32:36,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14700 to 13032. [2020-10-29 12:32:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13032 states. [2020-10-29 12:32:36,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13032 states to 13032 states and 18198 transitions. [2020-10-29 12:32:36,352 INFO L78 Accepts]: Start accepts. Automaton has 13032 states and 18198 transitions. Word has length 100 [2020-10-29 12:32:36,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:36,352 INFO L481 AbstractCegarLoop]: Abstraction has 13032 states and 18198 transitions. [2020-10-29 12:32:36,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 12:32:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 13032 states and 18198 transitions. [2020-10-29 12:32:36,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 12:32:36,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:36,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:36,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 12:32:36,354 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:36,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:36,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1996976487, now seen corresponding path program 1 times [2020-10-29 12:32:36,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:36,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1194393987] [2020-10-29 12:32:36,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:36,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:36,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:36,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:36,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 12:32:41,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:32:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:32:41,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-29 12:32:41,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 12:32:41,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,682 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:32:41,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:41,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:41,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:41,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:32:41,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:32:41,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-29 12:32:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:32:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:41,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:41,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:41,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:41,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:32:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:41,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:32:41,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:41,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:32:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:41,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:41,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:41,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:32:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:41,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:32:41,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:41,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:41,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:41,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:32:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:41,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:32:41,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:41,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:41,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:32:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:41,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:41,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:41,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:41,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:41,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:32:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:41,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:41,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:41,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:32:41,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:41,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:32:41,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:41,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:32:41,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:41,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:32:41,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1194393987] [2020-10-29 12:32:41,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:41,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:32:41,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685953754] [2020-10-29 12:32:41,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:32:41,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:41,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:32:41,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:32:41,972 INFO L87 Difference]: Start difference. First operand 13032 states and 18198 transitions. Second operand 11 states. [2020-10-29 12:32:42,257 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:32:46,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:46,373 INFO L93 Difference]: Finished difference Result 37503 states and 52652 transitions. [2020-10-29 12:32:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:32:46,374 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-29 12:32:46,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:32:46,465 INFO L225 Difference]: With dead ends: 37503 [2020-10-29 12:32:46,465 INFO L226 Difference]: Without dead ends: 24606 [2020-10-29 12:32:46,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:32:46,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24606 states. [2020-10-29 12:32:48,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24606 to 24603. [2020-10-29 12:32:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24603 states. [2020-10-29 12:32:48,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24603 states to 24603 states and 34061 transitions. [2020-10-29 12:32:48,916 INFO L78 Accepts]: Start accepts. Automaton has 24603 states and 34061 transitions. Word has length 101 [2020-10-29 12:32:48,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:32:48,917 INFO L481 AbstractCegarLoop]: Abstraction has 24603 states and 34061 transitions. [2020-10-29 12:32:48,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:32:48,917 INFO L276 IsEmpty]: Start isEmpty. Operand 24603 states and 34061 transitions. [2020-10-29 12:32:48,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 12:32:48,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:32:48,918 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:48,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 12:32:48,918 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:32:48,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:32:48,919 INFO L82 PathProgramCache]: Analyzing trace with hash -81231005, now seen corresponding path program 1 times [2020-10-29 12:32:48,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:32:48,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398284721] [2020-10-29 12:32:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:32:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:48,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:49,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:49,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:52,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:52,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 12:32:52,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:32:52,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3937 [2020-10-29 12:32:52,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:52,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 12:32:52,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 12:32:52,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,130 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:32:53,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:32:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:32:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:32:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:32:53,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:53,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:32:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:32:53,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:32:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:53,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:32:53,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:32:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:32:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:32:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:32:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:53,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:32:53,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:32:53,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:32:53,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:32:53,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:32:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:53,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:32:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:53,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:53,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:53,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:53,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:32:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:32:53,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:32:53,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:32:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:53,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:32:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:32:53,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:32:53,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:32:53,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:32:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:32:53,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398284721] [2020-10-29 12:32:53,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:32:53,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:32:53,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973664831] [2020-10-29 12:32:53,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:32:53,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:32:53,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:32:53,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:32:53,408 INFO L87 Difference]: Start difference. First operand 24603 states and 34061 transitions. Second operand 11 states. [2020-10-29 12:32:53,701 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:32:59,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:32:59,984 INFO L93 Difference]: Finished difference Result 71160 states and 98844 transitions. [2020-10-29 12:32:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:32:59,985 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-29 12:32:59,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:00,252 INFO L225 Difference]: With dead ends: 71160 [2020-10-29 12:33:00,253 INFO L226 Difference]: Without dead ends: 46638 [2020-10-29 12:33:00,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:33:00,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46638 states. [2020-10-29 12:33:05,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46638 to 46635. [2020-10-29 12:33:05,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46635 states. [2020-10-29 12:33:05,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46635 states to 46635 states and 63778 transitions. [2020-10-29 12:33:05,215 INFO L78 Accepts]: Start accepts. Automaton has 46635 states and 63778 transitions. Word has length 101 [2020-10-29 12:33:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:05,216 INFO L481 AbstractCegarLoop]: Abstraction has 46635 states and 63778 transitions. [2020-10-29 12:33:05,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:33:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 46635 states and 63778 transitions. [2020-10-29 12:33:05,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 12:33:05,217 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:05,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:05,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 12:33:05,217 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:05,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:05,218 INFO L82 PathProgramCache]: Analyzing trace with hash 2004831917, now seen corresponding path program 1 times [2020-10-29 12:33:05,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:05,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101875363] [2020-10-29 12:33:05,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:05,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:05,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:06,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:06,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 12:33:06,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:33:06,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1285 [2020-10-29 12:33:06,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:06,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 12:33:06,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-29 12:33:06,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:06,805 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:33:06,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:33:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:06,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:06,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:06,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:33:06,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:06,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:33:06,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:06,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:06,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:06,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:06,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:33:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:06,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:06,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:06,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:33:06,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:06,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:33:06,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:06,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:06,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:33:06,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:06,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:33:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:06,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:06,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:06,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:33:06,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:33:06,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:06,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:06,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:33:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:06,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:06,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:06,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:06,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:06,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:33:06,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:06,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:06,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:06,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:06,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:33:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:06,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:06,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:06,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:06,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:06,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:33:06,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:06,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:06,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:06,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:06,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:33:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:06,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:06,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:06,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:06,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:06,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:33:06,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:06,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:06,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:06,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:07,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:33:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:07,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:07,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:07,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:07,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:07,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:33:07,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:07,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:07,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:07,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:33:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:07,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:07,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:07,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:07,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:07,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:33:07,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:07,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:07,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:07,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:07,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:33:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:07,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:07,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:07,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:33:07,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:07,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:33:07,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:07,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:33:07,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:07,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:33:07,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101875363] [2020-10-29 12:33:07,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:33:07,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:33:07,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360859256] [2020-10-29 12:33:07,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:33:07,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:33:07,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:33:07,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:33:07,102 INFO L87 Difference]: Start difference. First operand 46635 states and 63778 transitions. Second operand 11 states. [2020-10-29 12:33:07,420 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-29 12:33:16,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:33:16,051 INFO L93 Difference]: Finished difference Result 110105 states and 151442 transitions. [2020-10-29 12:33:16,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 12:33:16,052 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 101 [2020-10-29 12:33:16,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:33:16,482 INFO L225 Difference]: With dead ends: 110105 [2020-10-29 12:33:16,482 INFO L226 Difference]: Without dead ends: 70545 [2020-10-29 12:33:16,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2020-10-29 12:33:16,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70545 states. [2020-10-29 12:33:23,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70545 to 70542. [2020-10-29 12:33:23,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70542 states. [2020-10-29 12:33:24,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70542 states to 70542 states and 95555 transitions. [2020-10-29 12:33:24,122 INFO L78 Accepts]: Start accepts. Automaton has 70542 states and 95555 transitions. Word has length 101 [2020-10-29 12:33:24,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:33:24,123 INFO L481 AbstractCegarLoop]: Abstraction has 70542 states and 95555 transitions. [2020-10-29 12:33:24,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:33:24,123 INFO L276 IsEmpty]: Start isEmpty. Operand 70542 states and 95555 transitions. [2020-10-29 12:33:24,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 12:33:24,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:33:24,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:24,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 12:33:24,124 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:33:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:33:24,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1750442015, now seen corresponding path program 1 times [2020-10-29 12:33:24,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:33:24,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592125406] [2020-10-29 12:33:24,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:33:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:24,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 12:33:27,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:33:27,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3206 [2020-10-29 12:33:27,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:33:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:33:27,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 12:33:27,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,603 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-29 12:33:27,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:33:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:33:27,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 12:33:27,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:27,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:27,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:33:27,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:33:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 12:33:27,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:33:27,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:27,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 12:33:27,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 12:33:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:33:27,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:33:27,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:33:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:33:27,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:33:27,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 12:33:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:27,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:33:27,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:33:27,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:33:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:33:27,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:33:27,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:33:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:27,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:33:27,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:27,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 12:33:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:27,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:33:27,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:27,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:27,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:27,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 12:33:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:27,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:33:27,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:27,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:27,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 12:33:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:33:27,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:33:27,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:33:27,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:27,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 12:33:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:33:27,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:33:27,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:33:27,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:33:27,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:33:27,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:33:27,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:33:27,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:33:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:33:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:33:27,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:33:27,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:33:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:33:27,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592125406] [2020-10-29 12:33:27,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:33:27,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-29 12:33:27,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672680160] [2020-10-29 12:33:27,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:33:27,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:33:27,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.