/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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 07:21:26,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 07:21:26,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 07:21:26,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 07:21:26,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 07:21:26,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 07:21:26,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 07:21:26,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 07:21:26,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 07:21:26,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 07:21:26,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 07:21:26,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 07:21:26,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 07:21:26,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 07:21:26,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 07:21:26,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 07:21:26,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 07:21:26,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 07:21:26,097 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 07:21:26,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 07:21:26,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 07:21:26,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 07:21:26,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 07:21:26,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 07:21:26,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 07:21:26,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 07:21:26,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 07:21:26,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 07:21:26,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 07:21:26,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 07:21:26,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 07:21:26,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 07:21:26,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 07:21:26,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 07:21:26,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 07:21:26,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 07:21:26,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 07:21:26,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 07:21:26,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 07:21:26,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 07:21:26,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 07:21:26,145 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 07:21:26,170 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 07:21:26,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 07:21:26,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 07:21:26,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 07:21:26,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 07:21:26,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 07:21:26,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 07:21:26,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 07:21:26,172 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 07:21:26,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 07:21:26,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 07:21:26,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 07:21:26,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 07:21:26,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:21:26,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 07:21:26,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 07:21:26,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 07:21:26,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 07:21:26,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 07:21:26,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 07:21:26,381 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 07:21:26,381 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 07:21:26,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-01-10 07:21:26,432 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f91fbc9e/d2e0237a56c14e439751887c2d6beee7/FLAGf5183fdaf [2022-01-10 07:21:26,802 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 07:21:26,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-01-10 07:21:26,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f91fbc9e/d2e0237a56c14e439751887c2d6beee7/FLAGf5183fdaf [2022-01-10 07:21:26,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f91fbc9e/d2e0237a56c14e439751887c2d6beee7 [2022-01-10 07:21:26,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 07:21:26,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 07:21:26,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 07:21:26,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 07:21:26,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 07:21:26,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:21:26" (1/1) ... [2022-01-10 07:21:26,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6647917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:26, skipping insertion in model container [2022-01-10 07:21:26,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:21:26" (1/1) ... [2022-01-10 07:21:26,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 07:21:26,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 07:21:27,212 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15613,15626] [2022-01-10 07:21:27,233 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16673,16686] [2022-01-10 07:21:27,334 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[28981,28994] [2022-01-10 07:21:27,341 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[29628,29641] [2022-01-10 07:21:27,356 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[30969,30982] [2022-01-10 07:21:27,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:21:27,401 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 07:21:27,474 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15613,15626] [2022-01-10 07:21:27,479 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16673,16686] [2022-01-10 07:21:27,527 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[28981,28994] [2022-01-10 07:21:27,531 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[29628,29641] [2022-01-10 07:21:27,537 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_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[30969,30982] [2022-01-10 07:21:27,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 07:21:27,565 INFO L208 MainTranslator]: Completed translation [2022-01-10 07:21:27,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27 WrapperNode [2022-01-10 07:21:27,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 07:21:27,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 07:21:27,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 07:21:27,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 07:21:27,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,627 INFO L137 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1671 [2022-01-10 07:21:27,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 07:21:27,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 07:21:27,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 07:21:27,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 07:21:27,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 07:21:27,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 07:21:27,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 07:21:27,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 07:21:27,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (1/1) ... [2022-01-10 07:21:27,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 07:21:27,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 07:21:27,756 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 07:21:27,758 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 07:21:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 07:21:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 07:21:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 07:21:27,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 07:21:27,917 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 07:21:27,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 07:21:28,904 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 07:21:28,917 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 07:21:28,917 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 07:21:28,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:21:28 BoogieIcfgContainer [2022-01-10 07:21:28,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 07:21:28,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 07:21:28,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 07:21:28,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 07:21:28,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:21:26" (1/3) ... [2022-01-10 07:21:28,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1170aecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:21:28, skipping insertion in model container [2022-01-10 07:21:28,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:21:27" (2/3) ... [2022-01-10 07:21:28,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1170aecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:21:28, skipping insertion in model container [2022-01-10 07:21:28,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:21:28" (3/3) ... [2022-01-10 07:21:28,927 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-01-10 07:21:28,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 07:21:28,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 07:21:28,980 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 07:21:28,986 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 07:21:28,986 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 07:21:29,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 413 states, 407 states have (on average 1.805896805896806) internal successors, (735), 412 states have internal predecessors, (735), 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 07:21:29,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-01-10 07:21:29,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:29,027 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] [2022-01-10 07:21:29,028 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:29,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash -969410714, now seen corresponding path program 1 times [2022-01-10 07:21:29,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:29,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574347145] [2022-01-10 07:21:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:29,045 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:29,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:29,047 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 07:21:29,055 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 07:21:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:29,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:29,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:29,602 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 07:21:29,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:29,603 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:29,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574347145] [2022-01-10 07:21:29,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574347145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:29,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:29,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:29,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080459059] [2022-01-10 07:21:29,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:29,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:29,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:29,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:29,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:29,634 INFO L87 Difference]: Start difference. First operand has 413 states, 407 states have (on average 1.805896805896806) internal successors, (735), 412 states have internal predecessors, (735), 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 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 07:21:29,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:29,765 INFO L93 Difference]: Finished difference Result 1205 states and 2148 transitions. [2022-01-10 07:21:29,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:29,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 148 [2022-01-10 07:21:29,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:29,782 INFO L225 Difference]: With dead ends: 1205 [2022-01-10 07:21:29,783 INFO L226 Difference]: Without dead ends: 795 [2022-01-10 07:21:29,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 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 07:21:29,790 INFO L933 BasicCegarLoop]: 1180 mSDtfsCounter, 1565 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:29,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1565 Valid, 1854 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:21:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2022-01-10 07:21:29,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 769. [2022-01-10 07:21:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 764 states have (on average 1.4463350785340314) internal successors, (1105), 768 states have internal predecessors, (1105), 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 07:21:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1105 transitions. [2022-01-10 07:21:29,860 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1105 transitions. Word has length 148 [2022-01-10 07:21:29,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:29,860 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 1105 transitions. [2022-01-10 07:21:29,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 07:21:29,861 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1105 transitions. [2022-01-10 07:21:29,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-10 07:21:29,864 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:29,865 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] [2022-01-10 07:21:29,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 07:21:30,071 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 07:21:30,072 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:30,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:30,072 INFO L85 PathProgramCache]: Analyzing trace with hash 344387962, now seen corresponding path program 1 times [2022-01-10 07:21:30,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:30,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623056739] [2022-01-10 07:21:30,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:30,073 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:30,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:30,074 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 07:21:30,076 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 07:21:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:30,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:21:30,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:30,390 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 07:21:30,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:30,390 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:30,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623056739] [2022-01-10 07:21:30,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1623056739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:30,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:30,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:21:30,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807809587] [2022-01-10 07:21:30,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:30,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:21:30,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:30,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:21:30,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:21:30,396 INFO L87 Difference]: Start difference. First operand 769 states and 1105 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 07:21:30,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:30,430 INFO L93 Difference]: Finished difference Result 2269 states and 3253 transitions. [2022-01-10 07:21:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:21:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 149 [2022-01-10 07:21:30,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:30,437 INFO L225 Difference]: With dead ends: 2269 [2022-01-10 07:21:30,438 INFO L226 Difference]: Without dead ends: 1528 [2022-01-10 07:21:30,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 07:21:30,443 INFO L933 BasicCegarLoop]: 787 mSDtfsCounter, 580 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:30,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [580 Valid, 1369 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:30,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-01-10 07:21:30,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 771. [2022-01-10 07:21:30,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 766 states have (on average 1.4451697127937337) internal successors, (1107), 770 states have internal predecessors, (1107), 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 07:21:30,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1107 transitions. [2022-01-10 07:21:30,480 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1107 transitions. Word has length 149 [2022-01-10 07:21:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:30,480 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1107 transitions. [2022-01-10 07:21:30,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 07:21:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1107 transitions. [2022-01-10 07:21:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-10 07:21:30,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:30,483 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] [2022-01-10 07:21:30,506 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 07:21:30,691 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 07:21:30,691 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:30,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:30,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1781435303, now seen corresponding path program 1 times [2022-01-10 07:21:30,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:30,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300835581] [2022-01-10 07:21:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:30,693 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:30,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:30,696 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 07:21:30,699 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 07:21:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:30,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:30,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:30,994 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 07:21:30,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:30,994 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:30,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300835581] [2022-01-10 07:21:30,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [300835581] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:30,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:30,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:30,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538216826] [2022-01-10 07:21:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:30,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:30,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:30,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:30,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:30,996 INFO L87 Difference]: Start difference. First operand 771 states and 1107 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 07:21:31,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:31,025 INFO L93 Difference]: Finished difference Result 1532 states and 2200 transitions. [2022-01-10 07:21:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:31,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 150 [2022-01-10 07:21:31,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:31,029 INFO L225 Difference]: With dead ends: 1532 [2022-01-10 07:21:31,029 INFO L226 Difference]: Without dead ends: 769 [2022-01-10 07:21:31,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 07:21:31,031 INFO L933 BasicCegarLoop]: 633 mSDtfsCounter, 69 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:31,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 1806 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:31,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2022-01-10 07:21:31,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 769. [2022-01-10 07:21:31,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 764 states have (on average 1.443717277486911) internal successors, (1103), 768 states have internal predecessors, (1103), 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 07:21:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1103 transitions. [2022-01-10 07:21:31,074 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1103 transitions. Word has length 150 [2022-01-10 07:21:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:31,075 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 1103 transitions. [2022-01-10 07:21:31,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 07:21:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1103 transitions. [2022-01-10 07:21:31,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-01-10 07:21:31,077 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:31,077 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] [2022-01-10 07:21:31,087 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 07:21:31,284 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 07:21:31,285 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:31,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:31,285 INFO L85 PathProgramCache]: Analyzing trace with hash -17582848, now seen corresponding path program 1 times [2022-01-10 07:21:31,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:31,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176220904] [2022-01-10 07:21:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:31,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:31,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:31,287 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 07:21:31,288 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 07:21:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:31,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:31,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:31,671 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 07:21:31,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:31,671 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:31,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176220904] [2022-01-10 07:21:31,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176220904] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:31,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:31,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:31,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908944338] [2022-01-10 07:21:31,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:31,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:31,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:31,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:31,673 INFO L87 Difference]: Start difference. First operand 769 states and 1103 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 07:21:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:31,749 INFO L93 Difference]: Finished difference Result 1907 states and 2723 transitions. [2022-01-10 07:21:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:31,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 150 [2022-01-10 07:21:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:31,753 INFO L225 Difference]: With dead ends: 1907 [2022-01-10 07:21:31,753 INFO L226 Difference]: Without dead ends: 1148 [2022-01-10 07:21:31,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 07:21:31,755 INFO L933 BasicCegarLoop]: 869 mSDtfsCounter, 1271 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:31,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1271 Valid, 1387 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:31,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1148 states. [2022-01-10 07:21:31,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1148 to 1125. [2022-01-10 07:21:31,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1120 states have (on average 1.4214285714285715) internal successors, (1592), 1124 states have internal predecessors, (1592), 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 07:21:31,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1592 transitions. [2022-01-10 07:21:31,783 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1592 transitions. Word has length 150 [2022-01-10 07:21:31,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:31,783 INFO L470 AbstractCegarLoop]: Abstraction has 1125 states and 1592 transitions. [2022-01-10 07:21:31,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 07:21:31,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1592 transitions. [2022-01-10 07:21:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-01-10 07:21:31,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:31,786 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] [2022-01-10 07:21:31,805 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 07:21:32,005 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 07:21:32,006 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:32,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:32,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1659886692, now seen corresponding path program 1 times [2022-01-10 07:21:32,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:32,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894499540] [2022-01-10 07:21:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:32,007 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:32,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:32,008 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 07:21:32,009 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 07:21:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:32,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:21:32,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:32,284 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 07:21:32,285 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:32,285 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:32,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894499540] [2022-01-10 07:21:32,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894499540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:32,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:32,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:21:32,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597359867] [2022-01-10 07:21:32,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:32,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:21:32,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:32,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:21:32,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:21:32,286 INFO L87 Difference]: Start difference. First operand 1125 states and 1592 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 07:21:32,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:32,343 INFO L93 Difference]: Finished difference Result 2446 states and 3549 transitions. [2022-01-10 07:21:32,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:21:32,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 154 [2022-01-10 07:21:32,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:32,348 INFO L225 Difference]: With dead ends: 2446 [2022-01-10 07:21:32,348 INFO L226 Difference]: Without dead ends: 1504 [2022-01-10 07:21:32,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 07:21:32,350 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 307 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:32,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 1240 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:32,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2022-01-10 07:21:32,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1340. [2022-01-10 07:21:32,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1335 states have (on average 1.4539325842696629) internal successors, (1941), 1339 states have internal predecessors, (1941), 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 07:21:32,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1941 transitions. [2022-01-10 07:21:32,408 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1941 transitions. Word has length 154 [2022-01-10 07:21:32,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:32,408 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 1941 transitions. [2022-01-10 07:21:32,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 07:21:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1941 transitions. [2022-01-10 07:21:32,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-01-10 07:21:32,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:32,410 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] [2022-01-10 07:21:32,421 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 07:21:32,619 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 07:21:32,620 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:32,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:32,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1188937734, now seen corresponding path program 1 times [2022-01-10 07:21:32,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:32,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215923898] [2022-01-10 07:21:32,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:32,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:32,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:32,622 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 07:21:32,623 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 07:21:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:32,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:32,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:32,977 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 07:21:32,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:32,978 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:32,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215923898] [2022-01-10 07:21:32,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215923898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:32,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:32,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:32,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612271147] [2022-01-10 07:21:32,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:32,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:32,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:32,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:32,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:32,979 INFO L87 Difference]: Start difference. First operand 1340 states and 1941 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 07:21:33,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:33,088 INFO L93 Difference]: Finished difference Result 3890 states and 5616 transitions. [2022-01-10 07:21:33,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:33,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 157 [2022-01-10 07:21:33,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:33,095 INFO L225 Difference]: With dead ends: 3890 [2022-01-10 07:21:33,095 INFO L226 Difference]: Without dead ends: 2585 [2022-01-10 07:21:33,099 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 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 07:21:33,100 INFO L933 BasicCegarLoop]: 1016 mSDtfsCounter, 1102 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:33,100 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1102 Valid, 1550 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:33,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2022-01-10 07:21:33,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2557. [2022-01-10 07:21:33,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2552 states have (on average 1.4396551724137931) internal successors, (3674), 2556 states have internal predecessors, (3674), 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 07:21:33,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 3674 transitions. [2022-01-10 07:21:33,185 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 3674 transitions. Word has length 157 [2022-01-10 07:21:33,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:33,185 INFO L470 AbstractCegarLoop]: Abstraction has 2557 states and 3674 transitions. [2022-01-10 07:21:33,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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 07:21:33,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 3674 transitions. [2022-01-10 07:21:33,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-01-10 07:21:33,188 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:33,188 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] [2022-01-10 07:21:33,197 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 07:21:33,395 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 07:21:33,396 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:33,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:33,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1240824700, now seen corresponding path program 1 times [2022-01-10 07:21:33,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:33,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981830126] [2022-01-10 07:21:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:33,397 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:33,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:33,398 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 07:21:33,400 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 07:21:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:33,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:33,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:33,680 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 07:21:33,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:33,680 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:33,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981830126] [2022-01-10 07:21:33,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981830126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:33,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:33,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:33,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628866564] [2022-01-10 07:21:33,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:33,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:33,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:33,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:33,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:33,693 INFO L87 Difference]: Start difference. First operand 2557 states and 3674 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 07:21:33,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:33,865 INFO L93 Difference]: Finished difference Result 7446 states and 10655 transitions. [2022-01-10 07:21:33,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:33,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 158 [2022-01-10 07:21:33,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:33,878 INFO L225 Difference]: With dead ends: 7446 [2022-01-10 07:21:33,879 INFO L226 Difference]: Without dead ends: 4924 [2022-01-10 07:21:33,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 155 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 07:21:33,883 INFO L933 BasicCegarLoop]: 952 mSDtfsCounter, 1248 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:33,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 1475 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:33,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4924 states. [2022-01-10 07:21:34,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4924 to 4903. [2022-01-10 07:21:34,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4903 states, 4898 states have (on average 1.4189465087790936) internal successors, (6950), 4902 states have internal predecessors, (6950), 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 07:21:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4903 states to 4903 states and 6950 transitions. [2022-01-10 07:21:34,028 INFO L78 Accepts]: Start accepts. Automaton has 4903 states and 6950 transitions. Word has length 158 [2022-01-10 07:21:34,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:34,028 INFO L470 AbstractCegarLoop]: Abstraction has 4903 states and 6950 transitions. [2022-01-10 07:21:34,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 07:21:34,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4903 states and 6950 transitions. [2022-01-10 07:21:34,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 07:21:34,032 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:34,033 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] [2022-01-10 07:21:34,046 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 07:21:34,239 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 07:21:34,240 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:34,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:34,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1724706340, now seen corresponding path program 1 times [2022-01-10 07:21:34,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:34,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438080612] [2022-01-10 07:21:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:34,241 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:34,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:34,243 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 07:21:34,243 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 07:21:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:34,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:34,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:34,557 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 07:21:34,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:34,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:34,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438080612] [2022-01-10 07:21:34,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438080612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:34,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:34,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:34,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900383634] [2022-01-10 07:21:34,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:34,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:34,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:34,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:34,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:34,559 INFO L87 Difference]: Start difference. First operand 4903 states and 6950 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 07:21:34,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:34,658 INFO L93 Difference]: Finished difference Result 7267 states and 10321 transitions. [2022-01-10 07:21:34,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:34,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 159 [2022-01-10 07:21:34,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:34,670 INFO L225 Difference]: With dead ends: 7267 [2022-01-10 07:21:34,671 INFO L226 Difference]: Without dead ends: 4130 [2022-01-10 07:21:34,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 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 07:21:34,678 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 55 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:34,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 1784 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:34,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4130 states. [2022-01-10 07:21:34,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4130 to 4130. [2022-01-10 07:21:34,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4130 states, 4125 states have (on average 1.4162424242424243) internal successors, (5842), 4129 states have internal predecessors, (5842), 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 07:21:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4130 states to 4130 states and 5842 transitions. [2022-01-10 07:21:34,803 INFO L78 Accepts]: Start accepts. Automaton has 4130 states and 5842 transitions. Word has length 159 [2022-01-10 07:21:34,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:34,803 INFO L470 AbstractCegarLoop]: Abstraction has 4130 states and 5842 transitions. [2022-01-10 07:21:34,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 07:21:34,804 INFO L276 IsEmpty]: Start isEmpty. Operand 4130 states and 5842 transitions. [2022-01-10 07:21:34,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-10 07:21:34,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:34,808 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] [2022-01-10 07:21:34,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 07:21:35,015 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 07:21:35,016 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:35,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:35,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1395416025, now seen corresponding path program 1 times [2022-01-10 07:21:35,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:35,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410536757] [2022-01-10 07:21:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:35,017 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:35,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:35,018 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 07:21:35,019 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 07:21:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:35,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:35,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:35,287 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 07:21:35,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:35,287 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:35,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410536757] [2022-01-10 07:21:35,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410536757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:35,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:35,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:35,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926617272] [2022-01-10 07:21:35,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:35,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:35,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:35,289 INFO L87 Difference]: Start difference. First operand 4130 states and 5842 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 07:21:35,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:35,383 INFO L93 Difference]: Finished difference Result 7450 states and 10529 transitions. [2022-01-10 07:21:35,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:35,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 159 [2022-01-10 07:21:35,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:35,392 INFO L225 Difference]: With dead ends: 7450 [2022-01-10 07:21:35,392 INFO L226 Difference]: Without dead ends: 3363 [2022-01-10 07:21:35,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 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 07:21:35,398 INFO L933 BasicCegarLoop]: 613 mSDtfsCounter, 45 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:35,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 1770 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:35,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2022-01-10 07:21:35,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 3363. [2022-01-10 07:21:35,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 3358 states have (on average 1.412447885646218) internal successors, (4743), 3362 states have internal predecessors, (4743), 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 07:21:35,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4743 transitions. [2022-01-10 07:21:35,484 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4743 transitions. Word has length 159 [2022-01-10 07:21:35,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:35,484 INFO L470 AbstractCegarLoop]: Abstraction has 3363 states and 4743 transitions. [2022-01-10 07:21:35,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 07:21:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4743 transitions. [2022-01-10 07:21:35,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-01-10 07:21:35,488 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:35,488 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] [2022-01-10 07:21:35,511 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 07:21:35,695 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 07:21:35,696 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:35,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:35,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1840427900, now seen corresponding path program 1 times [2022-01-10 07:21:35,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:35,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160045180] [2022-01-10 07:21:35,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:35,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:35,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:35,698 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 07:21:35,698 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 07:21:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:35,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:21:35,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:36,003 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 07:21:36,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:36,003 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:36,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160045180] [2022-01-10 07:21:36,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160045180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:36,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:36,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:21:36,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864546278] [2022-01-10 07:21:36,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:36,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:21:36,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:36,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:21:36,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:21:36,005 INFO L87 Difference]: Start difference. First operand 3363 states and 4743 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 07:21:36,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:36,155 INFO L93 Difference]: Finished difference Result 7629 states and 11097 transitions. [2022-01-10 07:21:36,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:21:36,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 163 [2022-01-10 07:21:36,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:36,170 INFO L225 Difference]: With dead ends: 7629 [2022-01-10 07:21:36,170 INFO L226 Difference]: Without dead ends: 4795 [2022-01-10 07:21:36,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 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 07:21:36,174 INFO L933 BasicCegarLoop]: 777 mSDtfsCounter, 305 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:36,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 1217 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4795 states. [2022-01-10 07:21:36,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4795 to 4344. [2022-01-10 07:21:36,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 4339 states have (on average 1.4528693247292004) internal successors, (6304), 4343 states have internal predecessors, (6304), 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 07:21:36,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 6304 transitions. [2022-01-10 07:21:36,293 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 6304 transitions. Word has length 163 [2022-01-10 07:21:36,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:36,294 INFO L470 AbstractCegarLoop]: Abstraction has 4344 states and 6304 transitions. [2022-01-10 07:21:36,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 07:21:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 6304 transitions. [2022-01-10 07:21:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-10 07:21:36,297 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:36,297 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] [2022-01-10 07:21:36,321 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 07:21:36,504 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 07:21:36,505 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:36,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:36,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1014827986, now seen corresponding path program 1 times [2022-01-10 07:21:36,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:36,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517314304] [2022-01-10 07:21:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:36,506 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:36,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:36,507 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 07:21:36,508 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 07:21:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:36,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:21:36,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:36,821 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 07:21:36,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:36,822 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:36,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517314304] [2022-01-10 07:21:36,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517314304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:36,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:36,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:21:36,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773994403] [2022-01-10 07:21:36,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:36,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:21:36,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:36,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:21:36,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:21:36,823 INFO L87 Difference]: Start difference. First operand 4344 states and 6304 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 07:21:36,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:36,996 INFO L93 Difference]: Finished difference Result 10440 states and 15301 transitions. [2022-01-10 07:21:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:21:36,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 166 [2022-01-10 07:21:36,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:37,010 INFO L225 Difference]: With dead ends: 10440 [2022-01-10 07:21:37,011 INFO L226 Difference]: Without dead ends: 6765 [2022-01-10 07:21:37,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 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 07:21:37,017 INFO L933 BasicCegarLoop]: 1068 mSDtfsCounter, 490 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:37,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 1595 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6765 states. [2022-01-10 07:21:37,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6765 to 6733. [2022-01-10 07:21:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6728 states have (on average 1.4417360285374554) internal successors, (9700), 6732 states have internal predecessors, (9700), 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 07:21:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 9700 transitions. [2022-01-10 07:21:37,248 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 9700 transitions. Word has length 166 [2022-01-10 07:21:37,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:37,248 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 9700 transitions. [2022-01-10 07:21:37,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 07:21:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 9700 transitions. [2022-01-10 07:21:37,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-01-10 07:21:37,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:37,253 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] [2022-01-10 07:21:37,277 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 07:21:37,463 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 07:21:37,464 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:37,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:37,464 INFO L85 PathProgramCache]: Analyzing trace with hash 875693694, now seen corresponding path program 1 times [2022-01-10 07:21:37,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:37,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382363409] [2022-01-10 07:21:37,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:37,465 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:37,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:37,466 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 07:21:37,467 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 07:21:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:37,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:37,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:37,796 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 07:21:37,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:37,796 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:37,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382363409] [2022-01-10 07:21:37,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382363409] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:37,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:37,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:37,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435755876] [2022-01-10 07:21:37,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:37,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:37,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:37,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:37,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:37,800 INFO L87 Difference]: Start difference. First operand 6733 states and 9700 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 07:21:37,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:37,998 INFO L93 Difference]: Finished difference Result 13572 states and 19502 transitions. [2022-01-10 07:21:37,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:37,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 166 [2022-01-10 07:21:38,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:38,012 INFO L225 Difference]: With dead ends: 13572 [2022-01-10 07:21:38,012 INFO L226 Difference]: Without dead ends: 6924 [2022-01-10 07:21:38,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 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 07:21:38,019 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 1198 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:38,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1198 Valid, 1441 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:38,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6924 states. [2022-01-10 07:21:38,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6924 to 6847. [2022-01-10 07:21:38,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6847 states, 6842 states have (on average 1.4342297573808829) internal successors, (9813), 6846 states have internal predecessors, (9813), 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 07:21:38,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6847 states to 6847 states and 9813 transitions. [2022-01-10 07:21:38,213 INFO L78 Accepts]: Start accepts. Automaton has 6847 states and 9813 transitions. Word has length 166 [2022-01-10 07:21:38,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:38,214 INFO L470 AbstractCegarLoop]: Abstraction has 6847 states and 9813 transitions. [2022-01-10 07:21:38,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 07:21:38,214 INFO L276 IsEmpty]: Start isEmpty. Operand 6847 states and 9813 transitions. [2022-01-10 07:21:38,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-01-10 07:21:38,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:38,218 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] [2022-01-10 07:21:38,228 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 07:21:38,425 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 07:21:38,426 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:38,427 INFO L85 PathProgramCache]: Analyzing trace with hash -132394046, now seen corresponding path program 1 times [2022-01-10 07:21:38,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:38,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485251505] [2022-01-10 07:21:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:38,427 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:38,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:38,428 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 07:21:38,429 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 07:21:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:38,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:38,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:38,696 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 07:21:38,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:38,697 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:38,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485251505] [2022-01-10 07:21:38,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485251505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:38,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:38,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:38,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478758186] [2022-01-10 07:21:38,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:38,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:38,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:38,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:38,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:38,698 INFO L87 Difference]: Start difference. First operand 6847 states and 9813 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 07:21:38,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:38,975 INFO L93 Difference]: Finished difference Result 17474 states and 24994 transitions. [2022-01-10 07:21:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:38,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 167 [2022-01-10 07:21:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:39,029 INFO L225 Difference]: With dead ends: 17474 [2022-01-10 07:21:39,029 INFO L226 Difference]: Without dead ends: 10788 [2022-01-10 07:21:39,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 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 07:21:39,039 INFO L933 BasicCegarLoop]: 915 mSDtfsCounter, 1274 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:39,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1274 Valid, 1432 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:39,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10788 states. [2022-01-10 07:21:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10788 to 10756. [2022-01-10 07:21:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10756 states, 10751 states have (on average 1.4135429262394197) internal successors, (15197), 10755 states have internal predecessors, (15197), 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 07:21:39,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10756 states to 10756 states and 15197 transitions. [2022-01-10 07:21:39,442 INFO L78 Accepts]: Start accepts. Automaton has 10756 states and 15197 transitions. Word has length 167 [2022-01-10 07:21:39,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:39,442 INFO L470 AbstractCegarLoop]: Abstraction has 10756 states and 15197 transitions. [2022-01-10 07:21:39,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 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 07:21:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 10756 states and 15197 transitions. [2022-01-10 07:21:39,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-01-10 07:21:39,451 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:39,451 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] [2022-01-10 07:21:39,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 07:21:39,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:21:39,659 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:39,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:39,659 INFO L85 PathProgramCache]: Analyzing trace with hash -497918836, now seen corresponding path program 1 times [2022-01-10 07:21:39,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:39,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228412437] [2022-01-10 07:21:39,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:39,660 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:39,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:39,661 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:21:39,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 07:21:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:39,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:21:39,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:39,951 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 07:21:39,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:39,952 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:39,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228412437] [2022-01-10 07:21:39,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1228412437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:39,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:39,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:21:39,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232207244] [2022-01-10 07:21:39,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:39,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:21:39,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:39,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:21:39,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:21:39,953 INFO L87 Difference]: Start difference. First operand 10756 states and 15197 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 07:21:40,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:40,380 INFO L93 Difference]: Finished difference Result 23796 states and 34500 transitions. [2022-01-10 07:21:40,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:21:40,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 172 [2022-01-10 07:21:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:40,408 INFO L225 Difference]: With dead ends: 23796 [2022-01-10 07:21:40,408 INFO L226 Difference]: Without dead ends: 15753 [2022-01-10 07:21:40,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 07:21:40,417 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 327 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:40,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 1222 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:40,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15753 states. [2022-01-10 07:21:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15753 to 14489. [2022-01-10 07:21:40,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14489 states, 14484 states have (on average 1.4496685998343) internal successors, (20997), 14488 states have internal predecessors, (20997), 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 07:21:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14489 states to 14489 states and 20997 transitions. [2022-01-10 07:21:40,935 INFO L78 Accepts]: Start accepts. Automaton has 14489 states and 20997 transitions. Word has length 172 [2022-01-10 07:21:40,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:40,936 INFO L470 AbstractCegarLoop]: Abstraction has 14489 states and 20997 transitions. [2022-01-10 07:21:40,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 07:21:40,936 INFO L276 IsEmpty]: Start isEmpty. Operand 14489 states and 20997 transitions. [2022-01-10 07:21:40,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-01-10 07:21:40,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:40,943 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] [2022-01-10 07:21:40,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 07:21:41,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:21:41,151 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:41,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:41,152 INFO L85 PathProgramCache]: Analyzing trace with hash -899522085, now seen corresponding path program 1 times [2022-01-10 07:21:41,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:41,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1035860796] [2022-01-10 07:21:41,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:41,153 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:41,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:41,154 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:21:41,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 07:21:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:41,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:41,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:41,437 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 07:21:41,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:41,437 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:41,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1035860796] [2022-01-10 07:21:41,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1035860796] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:41,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:41,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:41,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644928942] [2022-01-10 07:21:41,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:41,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:41,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:41,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:41,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:41,438 INFO L87 Difference]: Start difference. First operand 14489 states and 20997 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 07:21:41,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:41,844 INFO L93 Difference]: Finished difference Result 20927 states and 30381 transitions. [2022-01-10 07:21:41,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:41,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 173 [2022-01-10 07:21:41,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:41,868 INFO L225 Difference]: With dead ends: 20927 [2022-01-10 07:21:41,869 INFO L226 Difference]: Without dead ends: 13060 [2022-01-10 07:21:41,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 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 07:21:41,881 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 23 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:41,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 1733 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13060 states. [2022-01-10 07:21:42,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13060 to 13060. [2022-01-10 07:21:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13060 states, 13055 states have (on average 1.4528533129069323) internal successors, (18967), 13059 states have internal predecessors, (18967), 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 07:21:42,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13060 states to 13060 states and 18967 transitions. [2022-01-10 07:21:42,398 INFO L78 Accepts]: Start accepts. Automaton has 13060 states and 18967 transitions. Word has length 173 [2022-01-10 07:21:42,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:42,398 INFO L470 AbstractCegarLoop]: Abstraction has 13060 states and 18967 transitions. [2022-01-10 07:21:42,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 07:21:42,398 INFO L276 IsEmpty]: Start isEmpty. Operand 13060 states and 18967 transitions. [2022-01-10 07:21:42,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:21:42,404 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:42,404 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] [2022-01-10 07:21:42,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-01-10 07:21:42,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:21:42,611 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:42,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:42,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1483444645, now seen corresponding path program 1 times [2022-01-10 07:21:42,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:42,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133058580] [2022-01-10 07:21:42,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:42,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:42,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:42,613 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:21:42,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 07:21:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:42,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:21:42,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:43,214 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 07:21:43,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:43,214 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:43,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133058580] [2022-01-10 07:21:43,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133058580] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:43,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:43,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:43,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246924649] [2022-01-10 07:21:43,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:43,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:21:43,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:43,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:21:43,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:21:43,216 INFO L87 Difference]: Start difference. First operand 13060 states and 18967 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 07:21:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:43,751 INFO L93 Difference]: Finished difference Result 18295 states and 26756 transitions. [2022-01-10 07:21:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:21:43,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 175 [2022-01-10 07:21:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:43,772 INFO L225 Difference]: With dead ends: 18295 [2022-01-10 07:21:43,772 INFO L226 Difference]: Without dead ends: 13150 [2022-01-10 07:21:43,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 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 07:21:43,780 INFO L933 BasicCegarLoop]: 558 mSDtfsCounter, 66 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:43,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 1430 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 16 Unchecked, 0.1s Time] [2022-01-10 07:21:43,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13150 states. [2022-01-10 07:21:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13150 to 13094. [2022-01-10 07:21:44,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13094 states, 13089 states have (on average 1.4522881809152723) internal successors, (19009), 13093 states have internal predecessors, (19009), 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 07:21:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13094 states to 13094 states and 19009 transitions. [2022-01-10 07:21:44,173 INFO L78 Accepts]: Start accepts. Automaton has 13094 states and 19009 transitions. Word has length 175 [2022-01-10 07:21:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:44,173 INFO L470 AbstractCegarLoop]: Abstraction has 13094 states and 19009 transitions. [2022-01-10 07:21:44,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 07:21:44,173 INFO L276 IsEmpty]: Start isEmpty. Operand 13094 states and 19009 transitions. [2022-01-10 07:21:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:21:44,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:44,179 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] [2022-01-10 07:21:44,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-01-10 07:21:44,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:21:44,387 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:44,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:44,387 INFO L85 PathProgramCache]: Analyzing trace with hash 34247168, now seen corresponding path program 1 times [2022-01-10 07:21:44,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:44,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197415080] [2022-01-10 07:21:44,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:44,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:44,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:44,395 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:21:44,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 07:21:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:44,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 07:21:44,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:44,803 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 07:21:44,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:44,803 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:44,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197415080] [2022-01-10 07:21:44,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197415080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:44,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:44,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 07:21:44,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821206360] [2022-01-10 07:21:44,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:44,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 07:21:44,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:44,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 07:21:44,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 07:21:44,805 INFO L87 Difference]: Start difference. First operand 13094 states and 19009 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 07:21:45,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:45,578 INFO L93 Difference]: Finished difference Result 31938 states and 48004 transitions. [2022-01-10 07:21:45,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 07:21:45,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 175 [2022-01-10 07:21:45,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:45,612 INFO L225 Difference]: With dead ends: 31938 [2022-01-10 07:21:45,612 INFO L226 Difference]: Without dead ends: 23050 [2022-01-10 07:21:45,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 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 07:21:45,625 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 332 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:45,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 934 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 07:21:45,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23050 states. [2022-01-10 07:21:46,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23050 to 23048. [2022-01-10 07:21:46,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23048 states, 23043 states have (on average 1.4784099292626829) internal successors, (34067), 23047 states have internal predecessors, (34067), 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 07:21:46,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23048 states to 23048 states and 34067 transitions. [2022-01-10 07:21:46,591 INFO L78 Accepts]: Start accepts. Automaton has 23048 states and 34067 transitions. Word has length 175 [2022-01-10 07:21:46,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:46,592 INFO L470 AbstractCegarLoop]: Abstraction has 23048 states and 34067 transitions. [2022-01-10 07:21:46,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 07:21:46,592 INFO L276 IsEmpty]: Start isEmpty. Operand 23048 states and 34067 transitions. [2022-01-10 07:21:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:21:46,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:46,599 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] [2022-01-10 07:21:46,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-01-10 07:21:46,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:21:46,807 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:46,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:46,808 INFO L85 PathProgramCache]: Analyzing trace with hash 638855791, now seen corresponding path program 1 times [2022-01-10 07:21:46,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:46,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085932173] [2022-01-10 07:21:46,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:46,808 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:46,809 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:21:46,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-01-10 07:21:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:46,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 24 conjunts are in the unsatisfiable core [2022-01-10 07:21:46,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:53,967 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 07:21:53,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:53,967 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:53,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085932173] [2022-01-10 07:21:53,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085932173] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:53,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:53,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-10 07:21:53,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577950988] [2022-01-10 07:21:53,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:53,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-10 07:21:53,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:53,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-10 07:21:53,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-01-10 07:21:53,969 INFO L87 Difference]: Start difference. First operand 23048 states and 34067 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 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 07:21:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:54,708 INFO L93 Difference]: Finished difference Result 31807 states and 47423 transitions. [2022-01-10 07:21:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-10 07:21:54,711 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 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 175 [2022-01-10 07:21:54,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:54,747 INFO L225 Difference]: With dead ends: 31807 [2022-01-10 07:21:54,747 INFO L226 Difference]: Without dead ends: 23155 [2022-01-10 07:21:54,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2022-01-10 07:21:54,766 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 97 mSDsluCounter, 6691 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 7236 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1283 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:54,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 7236 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 1283 Unchecked, 0.0s Time] [2022-01-10 07:21:54,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23155 states. [2022-01-10 07:21:55,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23155 to 23087. [2022-01-10 07:21:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23087 states, 23082 states have (on average 1.477991508534789) internal successors, (34115), 23086 states have internal predecessors, (34115), 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 07:21:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23087 states to 23087 states and 34115 transitions. [2022-01-10 07:21:55,601 INFO L78 Accepts]: Start accepts. Automaton has 23087 states and 34115 transitions. Word has length 175 [2022-01-10 07:21:55,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:55,601 INFO L470 AbstractCegarLoop]: Abstraction has 23087 states and 34115 transitions. [2022-01-10 07:21:55,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 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 07:21:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 23087 states and 34115 transitions. [2022-01-10 07:21:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:21:55,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:55,609 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] [2022-01-10 07:21:55,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-01-10 07:21:55,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:21:55,816 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:55,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:55,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1832321463, now seen corresponding path program 1 times [2022-01-10 07:21:55,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:55,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [517994799] [2022-01-10 07:21:55,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:55,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:55,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:55,819 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:21:55,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-01-10 07:21:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:55,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:55,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:56,118 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 07:21:56,118 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:56,118 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:56,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [517994799] [2022-01-10 07:21:56,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [517994799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:56,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:56,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:56,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712374269] [2022-01-10 07:21:56,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:56,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:56,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:56,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:56,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:56,120 INFO L87 Difference]: Start difference. First operand 23087 states and 34115 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 07:21:57,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:21:57,671 INFO L93 Difference]: Finished difference Result 63035 states and 94793 transitions. [2022-01-10 07:21:57,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:21:57,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 175 [2022-01-10 07:21:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:21:57,741 INFO L225 Difference]: With dead ends: 63035 [2022-01-10 07:21:57,742 INFO L226 Difference]: Without dead ends: 43965 [2022-01-10 07:21:57,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 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 07:21:57,760 INFO L933 BasicCegarLoop]: 895 mSDtfsCounter, 543 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 2244 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:21:57,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [543 Valid, 2244 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:21:57,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43965 states. [2022-01-10 07:21:58,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43965 to 24751. [2022-01-10 07:21:58,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24751 states, 24746 states have (on average 1.462337347450093) internal successors, (36187), 24750 states have internal predecessors, (36187), 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 07:21:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24751 states to 24751 states and 36187 transitions. [2022-01-10 07:21:58,825 INFO L78 Accepts]: Start accepts. Automaton has 24751 states and 36187 transitions. Word has length 175 [2022-01-10 07:21:58,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:21:58,825 INFO L470 AbstractCegarLoop]: Abstraction has 24751 states and 36187 transitions. [2022-01-10 07:21:58,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 07:21:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 24751 states and 36187 transitions. [2022-01-10 07:21:58,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:21:58,835 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:21:58,835 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] [2022-01-10 07:21:58,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-01-10 07:21:59,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:21:59,035 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:21:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:21:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash -323336749, now seen corresponding path program 1 times [2022-01-10 07:21:59,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:21:59,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595286972] [2022-01-10 07:21:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:21:59,036 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:21:59,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:21:59,037 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:21:59,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-01-10 07:21:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:21:59,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:21:59,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:21:59,345 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 07:21:59,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:21:59,346 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:21:59,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595286972] [2022-01-10 07:21:59,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595286972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:21:59,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:21:59,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:21:59,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600423348] [2022-01-10 07:21:59,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:21:59,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:21:59,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:21:59,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:21:59,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:21:59,347 INFO L87 Difference]: Start difference. First operand 24751 states and 36187 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:22:01,194 INFO L93 Difference]: Finished difference Result 67337 states and 100212 transitions. [2022-01-10 07:22:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:22:01,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 175 [2022-01-10 07:22:01,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:22:01,257 INFO L225 Difference]: With dead ends: 67337 [2022-01-10 07:22:01,257 INFO L226 Difference]: Without dead ends: 47489 [2022-01-10 07:22:01,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 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 07:22:01,275 INFO L933 BasicCegarLoop]: 974 mSDtfsCounter, 519 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:22:01,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [519 Valid, 2372 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:22:01,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47489 states. [2022-01-10 07:22:02,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47489 to 27353. [2022-01-10 07:22:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27353 states, 27348 states have (on average 1.4372531812198333) internal successors, (39306), 27352 states have internal predecessors, (39306), 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 07:22:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27353 states to 27353 states and 39306 transitions. [2022-01-10 07:22:02,612 INFO L78 Accepts]: Start accepts. Automaton has 27353 states and 39306 transitions. Word has length 175 [2022-01-10 07:22:02,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:22:02,612 INFO L470 AbstractCegarLoop]: Abstraction has 27353 states and 39306 transitions. [2022-01-10 07:22:02,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 27353 states and 39306 transitions. [2022-01-10 07:22:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:22:02,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:22:02,624 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] [2022-01-10 07:22:02,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-01-10 07:22:02,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:22:02,825 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:22:02,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:22:02,825 INFO L85 PathProgramCache]: Analyzing trace with hash -432762618, now seen corresponding path program 1 times [2022-01-10 07:22:02,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:22:02,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482039148] [2022-01-10 07:22:02,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:22:02,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:22:02,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:22:02,827 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:22:02,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-01-10 07:22:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:22:02,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 07:22:02,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:22:03,140 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 07:22:03,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:22:03,140 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:22:03,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482039148] [2022-01-10 07:22:03,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482039148] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:22:03,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:22:03,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:22:03,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157981691] [2022-01-10 07:22:03,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:22:03,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 07:22:03,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:22:03,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 07:22:03,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 07:22:03,141 INFO L87 Difference]: Start difference. First operand 27353 states and 39306 transitions. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:22:05,017 INFO L93 Difference]: Finished difference Result 65388 states and 97718 transitions. [2022-01-10 07:22:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 07:22:05,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 175 [2022-01-10 07:22:05,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:22:05,099 INFO L225 Difference]: With dead ends: 65388 [2022-01-10 07:22:05,100 INFO L226 Difference]: Without dead ends: 45572 [2022-01-10 07:22:05,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 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 07:22:05,132 INFO L933 BasicCegarLoop]: 982 mSDtfsCounter, 521 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 07:22:05,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 2403 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 07:22:05,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45572 states. [2022-01-10 07:22:06,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45572 to 27269. [2022-01-10 07:22:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27269 states, 27264 states have (on average 1.4340522300469483) internal successors, (39098), 27268 states have internal predecessors, (39098), 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 07:22:06,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27269 states to 27269 states and 39098 transitions. [2022-01-10 07:22:06,573 INFO L78 Accepts]: Start accepts. Automaton has 27269 states and 39098 transitions. Word has length 175 [2022-01-10 07:22:06,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:22:06,573 INFO L470 AbstractCegarLoop]: Abstraction has 27269 states and 39098 transitions. [2022-01-10 07:22:06,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:06,573 INFO L276 IsEmpty]: Start isEmpty. Operand 27269 states and 39098 transitions. [2022-01-10 07:22:06,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:22:06,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:22:06,583 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] [2022-01-10 07:22:06,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-01-10 07:22:06,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:22:06,784 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:22:06,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:22:06,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1908350919, now seen corresponding path program 1 times [2022-01-10 07:22:06,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:22:06,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726638699] [2022-01-10 07:22:06,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:22:06,786 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:22:06,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:22:06,787 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:22:06,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-01-10 07:22:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:22:06,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:22:06,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:22:07,296 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 07:22:07,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:22:07,297 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:22:07,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726638699] [2022-01-10 07:22:07,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726638699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:22:07,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:22:07,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:22:07,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059880595] [2022-01-10 07:22:07,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:22:07,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:22:07,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:22:07,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:22:07,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:22:07,298 INFO L87 Difference]: Start difference. First operand 27269 states and 39098 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:22:08,509 INFO L93 Difference]: Finished difference Result 38750 states and 55745 transitions. [2022-01-10 07:22:08,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:22:08,511 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 175 [2022-01-10 07:22:08,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:22:08,548 INFO L225 Difference]: With dead ends: 38750 [2022-01-10 07:22:08,548 INFO L226 Difference]: Without dead ends: 27325 [2022-01-10 07:22:08,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 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 07:22:08,560 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 56 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 135 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:22:08,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 1800 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 135 Unchecked, 0.1s Time] [2022-01-10 07:22:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27325 states. [2022-01-10 07:22:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27325 to 27269. [2022-01-10 07:22:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27269 states, 27264 states have (on average 1.4339788732394365) internal successors, (39096), 27268 states have internal predecessors, (39096), 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 07:22:09,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27269 states to 27269 states and 39096 transitions. [2022-01-10 07:22:09,904 INFO L78 Accepts]: Start accepts. Automaton has 27269 states and 39096 transitions. Word has length 175 [2022-01-10 07:22:09,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:22:09,904 INFO L470 AbstractCegarLoop]: Abstraction has 27269 states and 39096 transitions. [2022-01-10 07:22:09,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:09,904 INFO L276 IsEmpty]: Start isEmpty. Operand 27269 states and 39096 transitions. [2022-01-10 07:22:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:22:09,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:22:09,916 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] [2022-01-10 07:22:09,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-01-10 07:22:10,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:22:10,116 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:22:10,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:22:10,117 INFO L85 PathProgramCache]: Analyzing trace with hash -534092999, now seen corresponding path program 1 times [2022-01-10 07:22:10,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:22:10,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855844551] [2022-01-10 07:22:10,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:22:10,118 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:22:10,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:22:10,119 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:22:10,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-01-10 07:22:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:22:10,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:22:10,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:22:10,558 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 07:22:10,558 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:22:10,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:22:10,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855844551] [2022-01-10 07:22:10,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855844551] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:22:10,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:22:10,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:22:10,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417461276] [2022-01-10 07:22:10,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:22:10,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:22:10,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:22:10,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:22:10,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:22:10,560 INFO L87 Difference]: Start difference. First operand 27269 states and 39096 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:11,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:22:11,784 INFO L93 Difference]: Finished difference Result 46552 states and 66919 transitions. [2022-01-10 07:22:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:22:11,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 175 [2022-01-10 07:22:11,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:22:11,829 INFO L225 Difference]: With dead ends: 46552 [2022-01-10 07:22:11,829 INFO L226 Difference]: Without dead ends: 27269 [2022-01-10 07:22:11,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 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 07:22:11,852 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 50 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:22:11,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 1433 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 6 Unchecked, 0.1s Time] [2022-01-10 07:22:11,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27269 states. [2022-01-10 07:22:13,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27269 to 27269. [2022-01-10 07:22:13,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27269 states, 27264 states have (on average 1.4335020539906103) internal successors, (39083), 27268 states have internal predecessors, (39083), 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 07:22:13,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27269 states to 27269 states and 39083 transitions. [2022-01-10 07:22:13,083 INFO L78 Accepts]: Start accepts. Automaton has 27269 states and 39083 transitions. Word has length 175 [2022-01-10 07:22:13,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:22:13,083 INFO L470 AbstractCegarLoop]: Abstraction has 27269 states and 39083 transitions. [2022-01-10 07:22:13,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 27269 states and 39083 transitions. [2022-01-10 07:22:13,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:22:13,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:22:13,093 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] [2022-01-10 07:22:13,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-01-10 07:22:13,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:22:13,294 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:22:13,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:22:13,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2050832934, now seen corresponding path program 1 times [2022-01-10 07:22:13,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:22:13,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133265338] [2022-01-10 07:22:13,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:22:13,296 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:22:13,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:22:13,297 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:22:13,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-01-10 07:22:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:22:13,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 07:22:13,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:22:13,822 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 07:22:13,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:22:13,822 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:22:13,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133265338] [2022-01-10 07:22:13,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133265338] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:22:13,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:22:13,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 07:22:13,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710121716] [2022-01-10 07:22:13,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:22:13,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 07:22:13,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:22:13,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 07:22:13,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 07:22:13,824 INFO L87 Difference]: Start difference. First operand 27269 states and 39083 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:14,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:22:14,978 INFO L93 Difference]: Finished difference Result 38642 states and 55594 transitions. [2022-01-10 07:22:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 07:22:14,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 175 [2022-01-10 07:22:14,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:22:15,017 INFO L225 Difference]: With dead ends: 38642 [2022-01-10 07:22:15,017 INFO L226 Difference]: Without dead ends: 27334 [2022-01-10 07:22:15,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 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 07:22:15,035 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 77 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 145 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:22:15,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 1446 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 145 Unchecked, 0.1s Time] [2022-01-10 07:22:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27334 states. [2022-01-10 07:22:16,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27334 to 27286. [2022-01-10 07:22:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27286 states, 27281 states have (on average 1.4333785418423077) internal successors, (39104), 27285 states have internal predecessors, (39104), 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 07:22:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27286 states to 27286 states and 39104 transitions. [2022-01-10 07:22:16,230 INFO L78 Accepts]: Start accepts. Automaton has 27286 states and 39104 transitions. Word has length 175 [2022-01-10 07:22:16,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:22:16,230 INFO L470 AbstractCegarLoop]: Abstraction has 27286 states and 39104 transitions. [2022-01-10 07:22:16,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 4 states have internal predecessors, (175), 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 07:22:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 27286 states and 39104 transitions. [2022-01-10 07:22:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:22:16,240 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:22:16,240 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] [2022-01-10 07:22:16,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-01-10 07:22:16,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:22:16,447 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:22:16,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:22:16,448 INFO L85 PathProgramCache]: Analyzing trace with hash 911411519, now seen corresponding path program 1 times [2022-01-10 07:22:16,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:22:16,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213331334] [2022-01-10 07:22:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:22:16,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:22:16,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:22:16,450 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:22:16,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-01-10 07:22:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:22:16,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 07:22:16,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:22:17,539 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 07:22:17,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:22:17,540 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:22:17,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213331334] [2022-01-10 07:22:17,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213331334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:22:17,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:22:17,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:22:17,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468059223] [2022-01-10 07:22:17,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:22:17,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:22:17,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:22:17,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:22:17,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:22:17,541 INFO L87 Difference]: Start difference. First operand 27286 states and 39104 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 07:22:18,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:22:18,676 INFO L93 Difference]: Finished difference Result 36027 states and 52432 transitions. [2022-01-10 07:22:18,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:22:18,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 175 [2022-01-10 07:22:18,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:22:18,808 INFO L225 Difference]: With dead ends: 36027 [2022-01-10 07:22:18,808 INFO L226 Difference]: Without dead ends: 27797 [2022-01-10 07:22:18,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:22:18,819 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 135 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 188 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:22:18,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 3389 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 188 Unchecked, 0.1s Time] [2022-01-10 07:22:18,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27797 states. [2022-01-10 07:22:19,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27797 to 27654. [2022-01-10 07:22:19,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27654 states, 27649 states have (on average 1.4305038156895367) internal successors, (39552), 27653 states have internal predecessors, (39552), 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 07:22:19,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27654 states to 27654 states and 39552 transitions. [2022-01-10 07:22:19,946 INFO L78 Accepts]: Start accepts. Automaton has 27654 states and 39552 transitions. Word has length 175 [2022-01-10 07:22:19,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:22:19,946 INFO L470 AbstractCegarLoop]: Abstraction has 27654 states and 39552 transitions. [2022-01-10 07:22:19,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 07:22:19,947 INFO L276 IsEmpty]: Start isEmpty. Operand 27654 states and 39552 transitions. [2022-01-10 07:22:19,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:22:19,957 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:22:19,957 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] [2022-01-10 07:22:19,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-01-10 07:22:20,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:22:20,165 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:22:20,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:22:20,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1184600939, now seen corresponding path program 1 times [2022-01-10 07:22:20,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:22:20,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018876960] [2022-01-10 07:22:20,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:22:20,166 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:22:20,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:22:20,167 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:22:20,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-01-10 07:22:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:22:20,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 07:22:20,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:22:21,141 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 07:22:21,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:22:21,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:22:21,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018876960] [2022-01-10 07:22:21,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018876960] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:22:21,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:22:21,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:22:21,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523099153] [2022-01-10 07:22:21,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:22:21,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:22:21,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:22:21,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:22:21,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:22:21,143 INFO L87 Difference]: Start difference. First operand 27654 states and 39552 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 07:22:22,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:22:22,249 INFO L93 Difference]: Finished difference Result 36410 states and 52846 transitions. [2022-01-10 07:22:22,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:22:22,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 175 [2022-01-10 07:22:22,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:22:22,297 INFO L225 Difference]: With dead ends: 36410 [2022-01-10 07:22:22,297 INFO L226 Difference]: Without dead ends: 28688 [2022-01-10 07:22:22,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:22:22,317 INFO L933 BasicCegarLoop]: 656 mSDtfsCounter, 169 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 221 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:22:22,318 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 2983 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 221 Unchecked, 0.1s Time] [2022-01-10 07:22:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28688 states. [2022-01-10 07:22:23,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28688 to 28008. [2022-01-10 07:22:23,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28008 states, 28003 states have (on average 1.4274184908759775) internal successors, (39972), 28007 states have internal predecessors, (39972), 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 07:22:23,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28008 states to 28008 states and 39972 transitions. [2022-01-10 07:22:23,660 INFO L78 Accepts]: Start accepts. Automaton has 28008 states and 39972 transitions. Word has length 175 [2022-01-10 07:22:23,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:22:23,660 INFO L470 AbstractCegarLoop]: Abstraction has 28008 states and 39972 transitions. [2022-01-10 07:22:23,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 07:22:23,661 INFO L276 IsEmpty]: Start isEmpty. Operand 28008 states and 39972 transitions. [2022-01-10 07:22:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:22:23,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:22:23,671 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] [2022-01-10 07:22:23,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-01-10 07:22:23,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:22:23,873 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:22:23,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:22:23,873 INFO L85 PathProgramCache]: Analyzing trace with hash 163279715, now seen corresponding path program 1 times [2022-01-10 07:22:23,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:22:23,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534498584] [2022-01-10 07:22:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:22:23,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:22:23,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:22:23,875 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:22:23,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-01-10 07:22:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:22:23,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 07:22:24,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:22:24,817 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 07:22:24,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:22:24,818 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:22:24,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534498584] [2022-01-10 07:22:24,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534498584] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:22:24,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:22:24,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 07:22:24,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886292878] [2022-01-10 07:22:24,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:22:24,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 07:22:24,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:22:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 07:22:24,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-10 07:22:24,819 INFO L87 Difference]: Start difference. First operand 28008 states and 39972 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 07:22:26,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 07:22:26,080 INFO L93 Difference]: Finished difference Result 36491 states and 52937 transitions. [2022-01-10 07:22:26,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 07:22:26,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 175 [2022-01-10 07:22:26,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 07:22:26,121 INFO L225 Difference]: With dead ends: 36491 [2022-01-10 07:22:26,122 INFO L226 Difference]: Without dead ends: 28833 [2022-01-10 07:22:26,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-10 07:22:26,139 INFO L933 BasicCegarLoop]: 672 mSDtfsCounter, 149 mSDsluCounter, 3215 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 3887 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 386 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 07:22:26,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 3887 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 386 Unchecked, 0.1s Time] [2022-01-10 07:22:26,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28833 states. [2022-01-10 07:22:27,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28833 to 28594. [2022-01-10 07:22:27,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28594 states, 28589 states have (on average 1.422889922697541) internal successors, (40679), 28593 states have internal predecessors, (40679), 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 07:22:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28594 states to 28594 states and 40679 transitions. [2022-01-10 07:22:27,433 INFO L78 Accepts]: Start accepts. Automaton has 28594 states and 40679 transitions. Word has length 175 [2022-01-10 07:22:27,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 07:22:27,433 INFO L470 AbstractCegarLoop]: Abstraction has 28594 states and 40679 transitions. [2022-01-10 07:22:27,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 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 07:22:27,434 INFO L276 IsEmpty]: Start isEmpty. Operand 28594 states and 40679 transitions. [2022-01-10 07:22:27,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-01-10 07:22:27,444 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 07:22:27,444 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] [2022-01-10 07:22:27,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-01-10 07:22:27,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 07:22:27,645 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 07:22:27,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 07:22:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -245269745, now seen corresponding path program 1 times [2022-01-10 07:22:27,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 07:22:27,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317289484] [2022-01-10 07:22:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 07:22:27,646 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 07:22:27,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 07:22:27,647 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 07:22:27,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-01-10 07:22:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 07:22:27,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 24 conjunts are in the unsatisfiable core [2022-01-10 07:22:27,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 07:22:34,920 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 07:22:34,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 07:22:34,921 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 07:22:34,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317289484] [2022-01-10 07:22:34,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317289484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 07:22:34,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 07:22:34,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-10 07:22:34,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059634972] [2022-01-10 07:22:34,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 07:22:34,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-10 07:22:34,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 07:22:34,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-10 07:22:34,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=434, Unknown=0, NotChecked=0, Total=506 [2022-01-10 07:22:34,923 INFO L87 Difference]: Start difference. First operand 28594 states and 40679 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 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)