/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 07:04:23,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 07:04:23,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 07:04:23,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 07:04:23,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 07:04:23,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 07:04:23,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 07:04:23,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 07:04:23,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 07:04:23,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 07:04:23,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 07:04:23,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 07:04:23,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 07:04:23,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 07:04:23,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 07:04:23,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 07:04:23,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 07:04:23,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 07:04:23,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 07:04:23,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 07:04:23,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 07:04:23,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 07:04:23,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 07:04:23,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 07:04:23,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 07:04:23,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 07:04:23,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 07:04:23,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 07:04:23,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 07:04:23,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 07:04:23,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 07:04:23,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 07:04:23,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 07:04:23,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 07:04:23,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 07:04:23,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 07:04:23,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 07:04:23,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 07:04:23,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 07:04:23,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 07:04:23,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 07:04:23,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 07:04:23,822 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 07:04:23,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 07:04:23,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 07:04:23,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 07:04:23,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 07:04:23,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 07:04:23,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 07:04:23,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 07:04:23,825 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 07:04:23,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 07:04:23,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 07:04:23,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 07:04:23,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 07:04:23,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 07:04:23,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 07:04:23,826 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 07:04:23,827 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 07:04:23,827 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 07:04:23,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 07:04:23,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 07:04:23,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 07:04:23,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 07:04:23,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 07:04:23,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:04:23,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 07:04:23,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 07:04:23,829 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 07:04:23,829 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 07:04:23,829 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 07:04:23,829 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 07:04:23,830 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 07:04:23,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 07:04:23,830 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 07:04:23,830 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 07:04:24,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 07:04:24,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 07:04:24,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 07:04:24,077 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 07:04:24,077 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 07:04:24,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2022-01-10 07:04:24,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef229675/68c08b4e896c4204aca2c6bcf6dd7a61/FLAG9ed778992 [2022-01-10 07:04:24,732 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 07:04:24,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2022-01-10 07:04:24,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef229675/68c08b4e896c4204aca2c6bcf6dd7a61/FLAG9ed778992 [2022-01-10 07:04:25,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ef229675/68c08b4e896c4204aca2c6bcf6dd7a61 [2022-01-10 07:04:25,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 07:04:25,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 07:04:25,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 07:04:25,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 07:04:25,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 07:04:25,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:04:25" (1/1) ... [2022-01-10 07:04:25,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5e5359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:25, skipping insertion in model container [2022-01-10 07:04:25,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:04:25" (1/1) ... [2022-01-10 07:04:25,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 07:04:25,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 07:04:25,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[30249,30262] [2022-01-10 07:04:25,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[33700,33713] [2022-01-10 07:04:26,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:04:26,030 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 07:04:26,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[30249,30262] [2022-01-10 07:04:26,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[33700,33713] [2022-01-10 07:04:26,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:04:26,424 INFO L208 MainTranslator]: Completed translation [2022-01-10 07:04:26,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26 WrapperNode [2022-01-10 07:04:26,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 07:04:26,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 07:04:26,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 07:04:26,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 07:04:26,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,566 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3719 [2022-01-10 07:04:26,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 07:04:26,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 07:04:26,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 07:04:26,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 07:04:26,576 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 07:04:26,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 07:04:26,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 07:04:26,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 07:04:26,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (1/1) ... [2022-01-10 07:04:26,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:04:26,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 07:04:26,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 07:04:26,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 07:04:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 07:04:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 07:04:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 07:04:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 07:04:26,935 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 07:04:26,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 07:04:29,281 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 07:04:29,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 07:04:29,305 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 07:04:29,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:04:29 BoogieIcfgContainer [2022-01-10 07:04:29,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 07:04:29,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 07:04:29,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 07:04:29,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 07:04:29,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:04:25" (1/3) ... [2022-01-10 07:04:29,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c0249e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:04:29, skipping insertion in model container [2022-01-10 07:04:29,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:04:26" (2/3) ... [2022-01-10 07:04:29,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c0249e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:04:29, skipping insertion in model container [2022-01-10 07:04:29,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:04:29" (3/3) ... [2022-01-10 07:04:29,315 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2022-01-10 07:04:29,319 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 07:04:29,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 07:04:29,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 07:04:29,395 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 07:04:29,395 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 07:04:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 1073 states, 1070 states have (on average 1.749532710280374) internal successors, (1872), 1072 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:29,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 07:04:29,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:29,482 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:29,482 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:29,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash -410519448, now seen corresponding path program 1 times [2022-01-10 07:04:29,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:29,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085650456] [2022-01-10 07:04:29,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:29,500 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:29,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:29,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:29,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 07:04:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:29,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:04:29,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:30,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:30,158 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:30,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085650456] [2022-01-10 07:04:30,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085650456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:30,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:30,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:04:30,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875749539] [2022-01-10 07:04:30,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:30,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:04:30,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:30,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:04:30,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:04:30,201 INFO L87 Difference]: Start difference. First operand has 1073 states, 1070 states have (on average 1.749532710280374) internal successors, (1872), 1072 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:30,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:30,389 INFO L93 Difference]: Finished difference Result 1964 states and 3398 transitions. [2022-01-10 07:04:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:04:30,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2022-01-10 07:04:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:30,420 INFO L225 Difference]: With dead ends: 1964 [2022-01-10 07:04:30,420 INFO L226 Difference]: Without dead ends: 1070 [2022-01-10 07:04:30,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:04:30,435 INFO L933 BasicCegarLoop]: 1865 mSDtfsCounter, 223 mSDsluCounter, 3455 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 5320 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:30,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 5320 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:04:30,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-01-10 07:04:30,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1070. [2022-01-10 07:04:30,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1068 states have (on average 1.6975655430711611) internal successors, (1813), 1069 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1813 transitions. [2022-01-10 07:04:30,521 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1813 transitions. Word has length 156 [2022-01-10 07:04:30,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:30,521 INFO L470 AbstractCegarLoop]: Abstraction has 1070 states and 1813 transitions. [2022-01-10 07:04:30,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:30,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1813 transitions. [2022-01-10 07:04:30,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-01-10 07:04:30,528 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:30,529 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:30,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:30,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:30,741 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:30,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash -2027184705, now seen corresponding path program 1 times [2022-01-10 07:04:30,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:30,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992674517] [2022-01-10 07:04:30,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:30,743 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:30,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:30,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:30,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 07:04:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:30,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:04:30,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:31,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:31,347 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:31,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992674517] [2022-01-10 07:04:31,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992674517] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:31,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:31,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:04:31,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799557884] [2022-01-10 07:04:31,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:31,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:04:31,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:31,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:04:31,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:31,351 INFO L87 Difference]: Start difference. First operand 1070 states and 1813 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:31,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:31,613 INFO L93 Difference]: Finished difference Result 2707 states and 4596 transitions. [2022-01-10 07:04:31,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:04:31,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-01-10 07:04:31,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:31,624 INFO L225 Difference]: With dead ends: 2707 [2022-01-10 07:04:31,625 INFO L226 Difference]: Without dead ends: 1854 [2022-01-10 07:04:31,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:31,628 INFO L933 BasicCegarLoop]: 2880 mSDtfsCounter, 1232 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 4539 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:31,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1232 Valid, 4539 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 07:04:31,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2022-01-10 07:04:31,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1850. [2022-01-10 07:04:31,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1848 states have (on average 1.6785714285714286) internal successors, (3102), 1849 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:31,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 3102 transitions. [2022-01-10 07:04:31,707 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 3102 transitions. Word has length 197 [2022-01-10 07:04:31,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:31,710 INFO L470 AbstractCegarLoop]: Abstraction has 1850 states and 3102 transitions. [2022-01-10 07:04:31,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:31,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 3102 transitions. [2022-01-10 07:04:31,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-01-10 07:04:31,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:31,726 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:31,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:31,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:31,938 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:31,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash -945736116, now seen corresponding path program 1 times [2022-01-10 07:04:31,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:31,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991744270] [2022-01-10 07:04:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:31,941 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:31,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:31,942 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:31,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 07:04:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:32,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:04:32,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:32,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:32,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:32,453 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:32,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991744270] [2022-01-10 07:04:32,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991744270] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:32,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:32,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:04:32,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423393158] [2022-01-10 07:04:32,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:32,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:04:32,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:04:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:32,459 INFO L87 Difference]: Start difference. First operand 1850 states and 3102 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:32,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:32,579 INFO L93 Difference]: Finished difference Result 3084 states and 5213 transitions. [2022-01-10 07:04:32,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:04:32,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2022-01-10 07:04:32,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:32,591 INFO L225 Difference]: With dead ends: 3084 [2022-01-10 07:04:32,592 INFO L226 Difference]: Without dead ends: 2223 [2022-01-10 07:04:32,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:32,595 INFO L933 BasicCegarLoop]: 2627 mSDtfsCounter, 1194 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:32,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 4189 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:04:32,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2022-01-10 07:04:32,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2219. [2022-01-10 07:04:32,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2219 states, 2217 states have (on average 1.6833558863328824) internal successors, (3732), 2218 states have internal predecessors, (3732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 3732 transitions. [2022-01-10 07:04:32,672 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 3732 transitions. Word has length 200 [2022-01-10 07:04:32,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:32,672 INFO L470 AbstractCegarLoop]: Abstraction has 2219 states and 3732 transitions. [2022-01-10 07:04:32,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 3732 transitions. [2022-01-10 07:04:32,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-01-10 07:04:32,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:32,679 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:32,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:32,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:32,893 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:32,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:32,894 INFO L85 PathProgramCache]: Analyzing trace with hash 366700065, now seen corresponding path program 1 times [2022-01-10 07:04:32,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:32,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735027266] [2022-01-10 07:04:32,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:32,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:32,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:32,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:32,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 07:04:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:33,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:04:33,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:33,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:33,500 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:33,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735027266] [2022-01-10 07:04:33,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735027266] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:33,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:33,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:04:33,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670009749] [2022-01-10 07:04:33,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:33,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:04:33,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:04:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:04:33,502 INFO L87 Difference]: Start difference. First operand 2219 states and 3732 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:33,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:33,818 INFO L93 Difference]: Finished difference Result 6571 states and 11053 transitions. [2022-01-10 07:04:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:04:33,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2022-01-10 07:04:33,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:33,841 INFO L225 Difference]: With dead ends: 6571 [2022-01-10 07:04:33,841 INFO L226 Difference]: Without dead ends: 4363 [2022-01-10 07:04:33,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:04:33,853 INFO L933 BasicCegarLoop]: 3131 mSDtfsCounter, 3721 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3721 SdHoareTripleChecker+Valid, 4812 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:33,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3721 Valid, 4812 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:04:33,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4363 states. [2022-01-10 07:04:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4363 to 4359. [2022-01-10 07:04:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4359 states, 4357 states have (on average 1.6759238007803534) internal successors, (7302), 4358 states have internal predecessors, (7302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:34,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 7302 transitions. [2022-01-10 07:04:34,037 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 7302 transitions. Word has length 203 [2022-01-10 07:04:34,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:34,037 INFO L470 AbstractCegarLoop]: Abstraction has 4359 states and 7302 transitions. [2022-01-10 07:04:34,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:34,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 7302 transitions. [2022-01-10 07:04:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-01-10 07:04:34,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:34,047 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:34,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:34,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:34,259 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:34,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:34,260 INFO L85 PathProgramCache]: Analyzing trace with hash -743831291, now seen corresponding path program 1 times [2022-01-10 07:04:34,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:34,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135471615] [2022-01-10 07:04:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:34,261 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:34,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:34,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:34,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 07:04:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:34,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:04:34,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:34,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:34,800 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:34,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135471615] [2022-01-10 07:04:34,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135471615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:34,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:34,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:04:34,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688372633] [2022-01-10 07:04:34,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:34,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:04:34,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:34,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:04:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:04:34,803 INFO L87 Difference]: Start difference. First operand 4359 states and 7302 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:35,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:35,215 INFO L93 Difference]: Finished difference Result 12917 states and 21643 transitions. [2022-01-10 07:04:35,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:04:35,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2022-01-10 07:04:35,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:35,252 INFO L225 Difference]: With dead ends: 12917 [2022-01-10 07:04:35,252 INFO L226 Difference]: Without dead ends: 8570 [2022-01-10 07:04:35,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:04:35,264 INFO L933 BasicCegarLoop]: 3128 mSDtfsCounter, 3716 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3716 SdHoareTripleChecker+Valid, 4809 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:35,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3716 Valid, 4809 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:04:35,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8570 states. [2022-01-10 07:04:35,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8570 to 8566. [2022-01-10 07:04:35,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8566 states, 8564 states have (on average 1.6682624941616067) internal successors, (14287), 8565 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8566 states to 8566 states and 14287 transitions. [2022-01-10 07:04:35,663 INFO L78 Accepts]: Start accepts. Automaton has 8566 states and 14287 transitions. Word has length 205 [2022-01-10 07:04:35,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:35,663 INFO L470 AbstractCegarLoop]: Abstraction has 8566 states and 14287 transitions. [2022-01-10 07:04:35,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand 8566 states and 14287 transitions. [2022-01-10 07:04:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-01-10 07:04:35,681 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:35,681 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:35,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:35,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:35,892 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:35,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:35,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2146394050, now seen corresponding path program 1 times [2022-01-10 07:04:35,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:35,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490764234] [2022-01-10 07:04:35,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:35,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:35,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:35,896 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:35,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 07:04:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:36,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:04:36,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:36,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:36,327 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:36,327 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:36,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490764234] [2022-01-10 07:04:36,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490764234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:36,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:36,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:04:36,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123109586] [2022-01-10 07:04:36,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:36,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:04:36,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:36,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:04:36,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:36,329 INFO L87 Difference]: Start difference. First operand 8566 states and 14287 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:36,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:36,882 INFO L93 Difference]: Finished difference Result 25641 states and 42768 transitions. [2022-01-10 07:04:36,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:04:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2022-01-10 07:04:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:36,942 INFO L225 Difference]: With dead ends: 25641 [2022-01-10 07:04:36,943 INFO L226 Difference]: Without dead ends: 17104 [2022-01-10 07:04:36,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:36,968 INFO L933 BasicCegarLoop]: 3543 mSDtfsCounter, 1766 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 5313 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:36,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1766 Valid, 5313 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:04:36,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17104 states. [2022-01-10 07:04:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17104 to 8580. [2022-01-10 07:04:37,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8580 states, 8578 states have (on average 1.6675215667987875) internal successors, (14304), 8579 states have internal predecessors, (14304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8580 states to 8580 states and 14304 transitions. [2022-01-10 07:04:37,463 INFO L78 Accepts]: Start accepts. Automaton has 8580 states and 14304 transitions. Word has length 207 [2022-01-10 07:04:37,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:37,464 INFO L470 AbstractCegarLoop]: Abstraction has 8580 states and 14304 transitions. [2022-01-10 07:04:37,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:37,465 INFO L276 IsEmpty]: Start isEmpty. Operand 8580 states and 14304 transitions. [2022-01-10 07:04:37,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-01-10 07:04:37,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:37,482 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:37,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:37,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:37,694 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:37,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:37,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1292068246, now seen corresponding path program 1 times [2022-01-10 07:04:37,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:37,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271605380] [2022-01-10 07:04:37,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:37,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:37,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:37,698 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:37,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 07:04:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:37,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:04:37,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:38,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:38,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:38,593 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:38,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271605380] [2022-01-10 07:04:38,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271605380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:38,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:38,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:04:38,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171323094] [2022-01-10 07:04:38,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:38,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:04:38,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:38,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:04:38,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:04:38,595 INFO L87 Difference]: Start difference. First operand 8580 states and 14304 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:39,887 INFO L93 Difference]: Finished difference Result 19980 states and 33428 transitions. [2022-01-10 07:04:39,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:04:39,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2022-01-10 07:04:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:39,928 INFO L225 Difference]: With dead ends: 19980 [2022-01-10 07:04:39,928 INFO L226 Difference]: Without dead ends: 16004 [2022-01-10 07:04:39,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-10 07:04:39,942 INFO L933 BasicCegarLoop]: 2717 mSDtfsCounter, 3066 mSDsluCounter, 2588 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 881 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:39,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3066 Valid, 5305 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 410 Invalid, 0 Unknown, 881 Unchecked, 0.4s Time] [2022-01-10 07:04:39,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16004 states. [2022-01-10 07:04:40,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16004 to 8580. [2022-01-10 07:04:40,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8580 states, 8578 states have (on average 1.6672884122173002) internal successors, (14302), 8579 states have internal predecessors, (14302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:40,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8580 states to 8580 states and 14302 transitions. [2022-01-10 07:04:40,568 INFO L78 Accepts]: Start accepts. Automaton has 8580 states and 14302 transitions. Word has length 208 [2022-01-10 07:04:40,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:40,568 INFO L470 AbstractCegarLoop]: Abstraction has 8580 states and 14302 transitions. [2022-01-10 07:04:40,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:40,570 INFO L276 IsEmpty]: Start isEmpty. Operand 8580 states and 14302 transitions. [2022-01-10 07:04:40,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-01-10 07:04:40,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:40,588 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:40,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:40,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:40,800 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:40,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:40,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1906387131, now seen corresponding path program 1 times [2022-01-10 07:04:40,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:40,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1296642432] [2022-01-10 07:04:40,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:40,802 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:40,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:40,804 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:40,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 07:04:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:41,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:04:41,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:41,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:41,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:41,328 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:41,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1296642432] [2022-01-10 07:04:41,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1296642432] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:41,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:41,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:04:41,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012657561] [2022-01-10 07:04:41,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:41,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:04:41,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:41,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:04:41,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:04:41,330 INFO L87 Difference]: Start difference. First operand 8580 states and 14302 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:42,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:42,313 INFO L93 Difference]: Finished difference Result 25387 states and 42337 transitions. [2022-01-10 07:04:42,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:04:42,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2022-01-10 07:04:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:42,361 INFO L225 Difference]: With dead ends: 25387 [2022-01-10 07:04:42,361 INFO L226 Difference]: Without dead ends: 16848 [2022-01-10 07:04:42,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:04:42,382 INFO L933 BasicCegarLoop]: 3122 mSDtfsCounter, 3703 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 4802 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:42,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3703 Valid, 4802 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:04:42,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16848 states. [2022-01-10 07:04:43,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16848 to 16844. [2022-01-10 07:04:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16844 states, 16842 states have (on average 1.6598384989906187) internal successors, (27955), 16843 states have internal predecessors, (27955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16844 states to 16844 states and 27955 transitions. [2022-01-10 07:04:43,290 INFO L78 Accepts]: Start accepts. Automaton has 16844 states and 27955 transitions. Word has length 208 [2022-01-10 07:04:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:43,290 INFO L470 AbstractCegarLoop]: Abstraction has 16844 states and 27955 transitions. [2022-01-10 07:04:43,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:43,291 INFO L276 IsEmpty]: Start isEmpty. Operand 16844 states and 27955 transitions. [2022-01-10 07:04:43,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-01-10 07:04:43,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:43,326 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:43,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-01-10 07:04:43,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:43,538 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:43,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1924641031, now seen corresponding path program 1 times [2022-01-10 07:04:43,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:43,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924983626] [2022-01-10 07:04:43,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:43,539 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:43,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:43,540 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:43,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 07:04:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:43,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:04:43,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:44,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:44,024 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:44,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924983626] [2022-01-10 07:04:44,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924983626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:44,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:44,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:04:44,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163283740] [2022-01-10 07:04:44,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:44,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:04:44,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:44,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:04:44,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:04:44,026 INFO L87 Difference]: Start difference. First operand 16844 states and 27955 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:45,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:45,931 INFO L93 Difference]: Finished difference Result 62273 states and 103152 transitions. [2022-01-10 07:04:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 07:04:45,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2022-01-10 07:04:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:46,018 INFO L225 Difference]: With dead ends: 62273 [2022-01-10 07:04:46,018 INFO L226 Difference]: Without dead ends: 45973 [2022-01-10 07:04:46,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:04:46,053 INFO L933 BasicCegarLoop]: 3646 mSDtfsCounter, 4949 mSDsluCounter, 5169 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 8815 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:46,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4949 Valid, 8815 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:04:46,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45973 states. [2022-01-10 07:04:47,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45973 to 17305. [2022-01-10 07:04:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17305 states, 17303 states have (on average 1.6605212968849332) internal successors, (28732), 17304 states have internal predecessors, (28732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:47,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17305 states to 17305 states and 28732 transitions. [2022-01-10 07:04:47,227 INFO L78 Accepts]: Start accepts. Automaton has 17305 states and 28732 transitions. Word has length 209 [2022-01-10 07:04:47,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:47,227 INFO L470 AbstractCegarLoop]: Abstraction has 17305 states and 28732 transitions. [2022-01-10 07:04:47,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 17305 states and 28732 transitions. [2022-01-10 07:04:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-01-10 07:04:47,262 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:47,262 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:47,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:47,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:47,474 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:47,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:47,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1094349423, now seen corresponding path program 1 times [2022-01-10 07:04:47,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:47,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188707638] [2022-01-10 07:04:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:47,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:47,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:47,477 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:47,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 07:04:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:47,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:04:47,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:48,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:48,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:48,017 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:48,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188707638] [2022-01-10 07:04:48,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188707638] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:48,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:48,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:04:48,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769130487] [2022-01-10 07:04:48,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:48,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:04:48,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:48,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:04:48,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:48,019 INFO L87 Difference]: Start difference. First operand 17305 states and 28732 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:49,563 INFO L93 Difference]: Finished difference Result 46349 states and 77052 transitions. [2022-01-10 07:04:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:04:49,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-01-10 07:04:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:49,614 INFO L225 Difference]: With dead ends: 46349 [2022-01-10 07:04:49,614 INFO L226 Difference]: Without dead ends: 31245 [2022-01-10 07:04:49,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:49,645 INFO L933 BasicCegarLoop]: 2894 mSDtfsCounter, 1295 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 4555 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:49,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 4555 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:04:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31245 states. [2022-01-10 07:04:51,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31245 to 31241. [2022-01-10 07:04:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31241 states, 31239 states have (on average 1.6545984186433624) internal successors, (51688), 31240 states have internal predecessors, (51688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:51,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31241 states to 31241 states and 51688 transitions. [2022-01-10 07:04:51,337 INFO L78 Accepts]: Start accepts. Automaton has 31241 states and 51688 transitions. Word has length 210 [2022-01-10 07:04:51,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:51,337 INFO L470 AbstractCegarLoop]: Abstraction has 31241 states and 51688 transitions. [2022-01-10 07:04:51,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 31241 states and 51688 transitions. [2022-01-10 07:04:51,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 07:04:51,369 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:51,369 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:51,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:51,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:51,581 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:51,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash -261574399, now seen corresponding path program 1 times [2022-01-10 07:04:51,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:51,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812992222] [2022-01-10 07:04:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:51,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:51,584 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:51,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 07:04:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:51,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:04:51,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:52,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:52,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:52,110 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:52,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812992222] [2022-01-10 07:04:52,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812992222] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:52,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:52,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:04:52,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072559116] [2022-01-10 07:04:52,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:52,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:04:52,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:52,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:04:52,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:52,114 INFO L87 Difference]: Start difference. First operand 31241 states and 51688 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:54,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:04:54,102 INFO L93 Difference]: Finished difference Result 54845 states and 91200 transitions. [2022-01-10 07:04:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:04:54,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2022-01-10 07:04:54,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:04:54,292 INFO L225 Difference]: With dead ends: 54845 [2022-01-10 07:04:54,293 INFO L226 Difference]: Without dead ends: 39681 [2022-01-10 07:04:54,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:04:54,311 INFO L933 BasicCegarLoop]: 2694 mSDtfsCounter, 1164 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 4218 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:04:54,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 4218 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:04:54,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39681 states. [2022-01-10 07:04:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39681 to 39677. [2022-01-10 07:04:56,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39677 states, 39675 states have (on average 1.6568620037807182) internal successors, (65736), 39676 states have internal predecessors, (65736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39677 states to 39677 states and 65736 transitions. [2022-01-10 07:04:56,251 INFO L78 Accepts]: Start accepts. Automaton has 39677 states and 65736 transitions. Word has length 214 [2022-01-10 07:04:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:04:56,251 INFO L470 AbstractCegarLoop]: Abstraction has 39677 states and 65736 transitions. [2022-01-10 07:04:56,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:04:56,251 INFO L276 IsEmpty]: Start isEmpty. Operand 39677 states and 65736 transitions. [2022-01-10 07:04:56,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-10 07:04:56,476 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:04:56,476 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:04:56,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 07:04:56,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:04:56,683 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:04:56,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:04:56,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1147792191, now seen corresponding path program 1 times [2022-01-10 07:04:56,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:04:56,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448637953] [2022-01-10 07:04:56,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:04:56,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:04:56,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:04:56,686 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:04:56,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 07:04:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:04:56,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:04:56,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:04:57,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:04:57,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:04:57,167 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:04:57,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448637953] [2022-01-10 07:04:57,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448637953] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:04:57,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:04:57,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:04:57,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458766226] [2022-01-10 07:04:57,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:04:57,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:04:57,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:04:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:04:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:04:57,169 INFO L87 Difference]: Start difference. First operand 39677 states and 65736 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:05:01,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:05:01,265 INFO L93 Difference]: Finished difference Result 117369 states and 194584 transitions. [2022-01-10 07:05:01,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:05:01,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2022-01-10 07:05:01,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:05:01,418 INFO L225 Difference]: With dead ends: 117369 [2022-01-10 07:05:01,418 INFO L226 Difference]: Without dead ends: 77927 [2022-01-10 07:05:01,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:05:01,480 INFO L933 BasicCegarLoop]: 3077 mSDtfsCounter, 3620 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3620 SdHoareTripleChecker+Valid, 4741 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:05:01,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3620 Valid, 4741 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:05:01,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77927 states. [2022-01-10 07:05:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77927 to 77923. [2022-01-10 07:05:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77923 states, 77921 states have (on average 1.6525583603906522) internal successors, (128769), 77922 states have internal predecessors, (128769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:05:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77923 states to 77923 states and 128769 transitions. [2022-01-10 07:05:06,145 INFO L78 Accepts]: Start accepts. Automaton has 77923 states and 128769 transitions. Word has length 217 [2022-01-10 07:05:06,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:05:06,145 INFO L470 AbstractCegarLoop]: Abstraction has 77923 states and 128769 transitions. [2022-01-10 07:05:06,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:05:06,145 INFO L276 IsEmpty]: Start isEmpty. Operand 77923 states and 128769 transitions. [2022-01-10 07:05:06,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-01-10 07:05:06,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:05:06,259 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 07:05:06,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 07:05:06,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:05:06,460 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 07:05:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:05:06,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1614081522, now seen corresponding path program 1 times [2022-01-10 07:05:06,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:05:06,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593240209] [2022-01-10 07:05:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:05:06,462 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:05:06,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:05:06,463 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:05:06,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 07:05:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:05:06,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:05:06,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:05:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 07:05:06,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:05:06,958 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:05:06,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593240209] [2022-01-10 07:05:06,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [593240209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:05:06,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:05:06,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:05:06,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50211338] [2022-01-10 07:05:06,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:05:06,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:05:06,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:05:06,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:05:06,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:05:06,959 INFO L87 Difference]: Start difference. First operand 77923 states and 128769 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 07:05:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:05:15,223 INFO L93 Difference]: Finished difference Result 228237 states and 377043 transitions. [2022-01-10 07:05:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:05:15,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2022-01-10 07:05:15,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:05:15,573 INFO L225 Difference]: With dead ends: 228237 [2022-01-10 07:05:15,573 INFO L226 Difference]: Without dead ends: 152101 [2022-01-10 07:05:15,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:05:15,793 INFO L933 BasicCegarLoop]: 3386 mSDtfsCounter, 1599 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 5056 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:05:15,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1599 Valid, 5056 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:05:15,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152101 states.