/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_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:37:29,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:37:29,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:37:29,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 01:37:29,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:37:29,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:37:29,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:37:29,670 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:37:29,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:37:29,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:37:29,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:37:29,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:37:29,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:37:29,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:37:29,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:37:29,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:37:29,696 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:37:29,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:37:29,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:37:29,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:37:29,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:37:29,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:37:29,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:37:29,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:37:29,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:37:29,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:37:29,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:37:29,698 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:37:29,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:37:29,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:37:29,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:37:29,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:37:29,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:37:29,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:37:29,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:37:29,922 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:37:29,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 01:37:29,970 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eedfe607/77af5a5b16b041478a99e826752a7658/FLAG69849e5ab [2022-01-10 01:37:30,349 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:37:30,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 01:37:30,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eedfe607/77af5a5b16b041478a99e826752a7658/FLAG69849e5ab [2022-01-10 01:37:30,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eedfe607/77af5a5b16b041478a99e826752a7658 [2022-01-10 01:37:30,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:37:30,738 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:37:30,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:37:30,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:37:30,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:37:30,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:37:30" (1/1) ... [2022-01-10 01:37:30,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@111aeeb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:30, skipping insertion in model container [2022-01-10 01:37:30,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:37:30" (1/1) ... [2022-01-10 01:37:30,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:37:30,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:37:31,016 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8893,8906] [2022-01-10 01:37:31,046 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12165,12178] [2022-01-10 01:37:31,058 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13321,13334] [2022-01-10 01:37:31,064 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13977,13990] [2022-01-10 01:37:31,071 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15456,15469] [2022-01-10 01:37:31,074 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16112,16125] [2022-01-10 01:37:31,078 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17096,17109] [2022-01-10 01:37:31,096 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19392,19405] [2022-01-10 01:37:31,099 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20051,20064] [2022-01-10 01:37:31,104 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21033,21046] [2022-01-10 01:37:31,116 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22824,22837] [2022-01-10 01:37:31,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:37:31,188 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:37:31,221 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8893,8906] [2022-01-10 01:37:31,230 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12165,12178] [2022-01-10 01:37:31,235 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13321,13334] [2022-01-10 01:37:31,241 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13977,13990] [2022-01-10 01:37:31,244 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15456,15469] [2022-01-10 01:37:31,246 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16112,16125] [2022-01-10 01:37:31,248 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17096,17109] [2022-01-10 01:37:31,258 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19392,19405] [2022-01-10 01:37:31,260 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20051,20064] [2022-01-10 01:37:31,262 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21033,21046] [2022-01-10 01:37:31,266 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_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22824,22837] [2022-01-10 01:37:31,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:37:31,339 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:37:31,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31 WrapperNode [2022-01-10 01:37:31,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:37:31,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:37:31,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:37:31,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:37:31,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,423 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1790 [2022-01-10 01:37:31,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:37:31,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:37:31,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:37:31,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:37:31,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:37:31,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:37:31,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:37:31,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:37:31,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (1/1) ... [2022-01-10 01:37:31,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:37:31,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:37:31,536 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 01:37:31,558 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 01:37:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:37:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:37:31,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:37:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:37:31,740 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:37:31,741 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:37:32,507 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:37:32,514 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:37:32,514 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:37:32,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:37:32 BoogieIcfgContainer [2022-01-10 01:37:32,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:37:32,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:37:32,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:37:32,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:37:32,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:37:30" (1/3) ... [2022-01-10 01:37:32,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc955ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:37:32, skipping insertion in model container [2022-01-10 01:37:32,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:37:31" (2/3) ... [2022-01-10 01:37:32,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc955ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:37:32, skipping insertion in model container [2022-01-10 01:37:32,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:37:32" (3/3) ... [2022-01-10 01:37:32,520 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-10 01:37:32,523 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:37:32,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-01-10 01:37:32,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:37:32,555 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 01:37:32,555 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-01-10 01:37:32,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 356 states have internal predecessors, (634), 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 01:37:32,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 01:37:32,576 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:32,576 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] [2022-01-10 01:37:32,576 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:32,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:32,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1863160701, now seen corresponding path program 1 times [2022-01-10 01:37:32,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:32,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641026700] [2022-01-10 01:37:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:32,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:32,801 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 01:37:32,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:32,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641026700] [2022-01-10 01:37:32,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641026700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:32,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:32,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:37:32,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930088394] [2022-01-10 01:37:32,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:32,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:37:32,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:32,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:37:32,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:37:32,866 INFO L87 Difference]: Start difference. First operand has 357 states, 345 states have (on average 1.8376811594202898) internal successors, (634), 356 states have internal predecessors, (634), 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 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 01:37:33,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:33,123 INFO L93 Difference]: Finished difference Result 703 states and 1189 transitions. [2022-01-10 01:37:33,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:37:33,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2022-01-10 01:37:33,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:33,134 INFO L225 Difference]: With dead ends: 703 [2022-01-10 01:37:33,134 INFO L226 Difference]: Without dead ends: 427 [2022-01-10 01:37:33,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:37:33,138 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1864 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:33,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1864 Valid, 499 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:37:33,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-01-10 01:37:33,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 385. [2022-01-10 01:37:33,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 374 states have (on average 1.36096256684492) internal successors, (509), 384 states have internal predecessors, (509), 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 01:37:33,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 509 transitions. [2022-01-10 01:37:33,180 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 509 transitions. Word has length 58 [2022-01-10 01:37:33,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:33,181 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 509 transitions. [2022-01-10 01:37:33,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 01:37:33,181 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 509 transitions. [2022-01-10 01:37:33,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 01:37:33,183 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:33,183 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] [2022-01-10 01:37:33,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:37:33,183 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:33,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:33,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1094505509, now seen corresponding path program 1 times [2022-01-10 01:37:33,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:33,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392894272] [2022-01-10 01:37:33,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:33,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:33,253 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 01:37:33,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:33,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392894272] [2022-01-10 01:37:33,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392894272] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:33,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:33,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:37:33,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126763596] [2022-01-10 01:37:33,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:33,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:37:33,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:33,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:37:33,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:37:33,256 INFO L87 Difference]: Start difference. First operand 385 states and 509 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 01:37:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:33,413 INFO L93 Difference]: Finished difference Result 680 states and 921 transitions. [2022-01-10 01:37:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:37:33,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2022-01-10 01:37:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:33,415 INFO L225 Difference]: With dead ends: 680 [2022-01-10 01:37:33,415 INFO L226 Difference]: Without dead ends: 365 [2022-01-10 01:37:33,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:37:33,416 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 936 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:33,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [936 Valid, 211 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:37:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-01-10 01:37:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2022-01-10 01:37:33,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 354 states have (on average 1.3644067796610169) internal successors, (483), 364 states have internal predecessors, (483), 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 01:37:33,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 483 transitions. [2022-01-10 01:37:33,433 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 483 transitions. Word has length 59 [2022-01-10 01:37:33,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:33,434 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 483 transitions. [2022-01-10 01:37:33,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 01:37:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 483 transitions. [2022-01-10 01:37:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 01:37:33,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:33,435 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] [2022-01-10 01:37:33,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:37:33,436 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:33,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:33,436 INFO L85 PathProgramCache]: Analyzing trace with hash 568036411, now seen corresponding path program 1 times [2022-01-10 01:37:33,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:33,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208114613] [2022-01-10 01:37:33,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:33,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:33,491 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 01:37:33,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:33,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208114613] [2022-01-10 01:37:33,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208114613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:33,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:33,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:37:33,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087836459] [2022-01-10 01:37:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:33,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:37:33,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:33,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:37:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:37:33,493 INFO L87 Difference]: Start difference. First operand 365 states and 483 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 01:37:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:33,621 INFO L93 Difference]: Finished difference Result 660 states and 893 transitions. [2022-01-10 01:37:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:37:33,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2022-01-10 01:37:33,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:33,622 INFO L225 Difference]: With dead ends: 660 [2022-01-10 01:37:33,622 INFO L226 Difference]: Without dead ends: 346 [2022-01-10 01:37:33,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:37:33,624 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 908 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:33,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 200 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:37:33,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-01-10 01:37:33,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-01-10 01:37:33,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 335 states have (on average 1.373134328358209) internal successors, (460), 345 states have internal predecessors, (460), 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 01:37:33,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 460 transitions. [2022-01-10 01:37:33,638 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 460 transitions. Word has length 60 [2022-01-10 01:37:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:33,638 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 460 transitions. [2022-01-10 01:37:33,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 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 01:37:33,638 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 460 transitions. [2022-01-10 01:37:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 01:37:33,639 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:33,639 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] [2022-01-10 01:37:33,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:37:33,640 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:33,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:33,640 INFO L85 PathProgramCache]: Analyzing trace with hash -715476529, now seen corresponding path program 1 times [2022-01-10 01:37:33,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:33,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335288326] [2022-01-10 01:37:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:33,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:33,687 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 01:37:33,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:33,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335288326] [2022-01-10 01:37:33,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335288326] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:33,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:33,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:37:33,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201121558] [2022-01-10 01:37:33,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:33,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:37:33,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:33,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:37:33,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:37:33,689 INFO L87 Difference]: Start difference. First operand 346 states and 460 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 01:37:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:33,850 INFO L93 Difference]: Finished difference Result 641 states and 868 transitions. [2022-01-10 01:37:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:37:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2022-01-10 01:37:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:33,852 INFO L225 Difference]: With dead ends: 641 [2022-01-10 01:37:33,852 INFO L226 Difference]: Without dead ends: 338 [2022-01-10 01:37:33,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:37:33,853 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 861 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:33,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [861 Valid, 196 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:37:33,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-01-10 01:37:33,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2022-01-10 01:37:33,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3730886850152906) internal successors, (449), 337 states have internal predecessors, (449), 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 01:37:33,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 449 transitions. [2022-01-10 01:37:33,882 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 449 transitions. Word has length 61 [2022-01-10 01:37:33,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:33,882 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 449 transitions. [2022-01-10 01:37:33,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 01:37:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 449 transitions. [2022-01-10 01:37:33,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:37:33,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:33,884 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] [2022-01-10 01:37:33,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:37:33,884 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:33,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:33,885 INFO L85 PathProgramCache]: Analyzing trace with hash 207205371, now seen corresponding path program 1 times [2022-01-10 01:37:33,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:33,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877142750] [2022-01-10 01:37:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:33,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:34,030 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 01:37:34,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:34,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877142750] [2022-01-10 01:37:34,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877142750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:34,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:34,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:34,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219942957] [2022-01-10 01:37:34,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:34,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:34,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:34,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:34,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:34,032 INFO L87 Difference]: Start difference. First operand 338 states and 449 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 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 01:37:34,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:34,583 INFO L93 Difference]: Finished difference Result 779 states and 1074 transitions. [2022-01-10 01:37:34,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:34,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2022-01-10 01:37:34,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:34,586 INFO L225 Difference]: With dead ends: 779 [2022-01-10 01:37:34,586 INFO L226 Difference]: Without dead ends: 639 [2022-01-10 01:37:34,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:37:34,587 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 1561 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:34,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1561 Valid, 875 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:37:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2022-01-10 01:37:34,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 338. [2022-01-10 01:37:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3700305810397553) internal successors, (448), 337 states have internal predecessors, (448), 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 01:37:34,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 448 transitions. [2022-01-10 01:37:34,606 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 448 transitions. Word has length 62 [2022-01-10 01:37:34,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:34,606 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 448 transitions. [2022-01-10 01:37:34,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 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 01:37:34,607 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 448 transitions. [2022-01-10 01:37:34,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:37:34,607 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:34,607 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] [2022-01-10 01:37:34,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:37:34,608 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:34,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:34,608 INFO L85 PathProgramCache]: Analyzing trace with hash -201639857, now seen corresponding path program 1 times [2022-01-10 01:37:34,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:34,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545161810] [2022-01-10 01:37:34,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:34,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:34,705 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 01:37:34,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:34,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545161810] [2022-01-10 01:37:34,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545161810] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:34,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:34,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:34,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903157091] [2022-01-10 01:37:34,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:34,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:34,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:34,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:34,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:34,707 INFO L87 Difference]: Start difference. First operand 338 states and 448 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 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 01:37:35,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:35,263 INFO L93 Difference]: Finished difference Result 883 states and 1236 transitions. [2022-01-10 01:37:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:35,263 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 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 62 [2022-01-10 01:37:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:35,265 INFO L225 Difference]: With dead ends: 883 [2022-01-10 01:37:35,265 INFO L226 Difference]: Without dead ends: 765 [2022-01-10 01:37:35,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:37:35,266 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 1856 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:35,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1856 Valid, 1005 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:37:35,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-01-10 01:37:35,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 338. [2022-01-10 01:37:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3669724770642202) internal successors, (447), 337 states have internal predecessors, (447), 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 01:37:35,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 447 transitions. [2022-01-10 01:37:35,287 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 447 transitions. Word has length 62 [2022-01-10 01:37:35,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:35,288 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 447 transitions. [2022-01-10 01:37:35,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 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 01:37:35,288 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 447 transitions. [2022-01-10 01:37:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:37:35,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:35,288 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] [2022-01-10 01:37:35,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:37:35,289 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:35,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:35,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1938423665, now seen corresponding path program 1 times [2022-01-10 01:37:35,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:35,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010096046] [2022-01-10 01:37:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:35,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:35,387 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 01:37:35,387 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:35,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010096046] [2022-01-10 01:37:35,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010096046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:35,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:35,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 01:37:35,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605369784] [2022-01-10 01:37:35,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:35,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 01:37:35,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 01:37:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:37:35,389 INFO L87 Difference]: Start difference. First operand 338 states and 447 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 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 01:37:35,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:35,890 INFO L93 Difference]: Finished difference Result 801 states and 1103 transitions. [2022-01-10 01:37:35,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 01:37:35,891 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 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 62 [2022-01-10 01:37:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:35,892 INFO L225 Difference]: With dead ends: 801 [2022-01-10 01:37:35,893 INFO L226 Difference]: Without dead ends: 631 [2022-01-10 01:37:35,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-01-10 01:37:35,894 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 1698 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:35,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1698 Valid, 1098 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:37:35,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-01-10 01:37:35,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 338. [2022-01-10 01:37:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3608562691131498) internal successors, (445), 337 states have internal predecessors, (445), 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 01:37:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2022-01-10 01:37:35,924 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 62 [2022-01-10 01:37:35,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:35,925 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2022-01-10 01:37:35,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 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 01:37:35,925 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2022-01-10 01:37:35,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:37:35,925 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:35,926 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] [2022-01-10 01:37:35,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:37:35,926 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:35,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:35,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1233191565, now seen corresponding path program 1 times [2022-01-10 01:37:35,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:35,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005507473] [2022-01-10 01:37:35,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:35,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:36,054 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 01:37:36,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:36,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005507473] [2022-01-10 01:37:36,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005507473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:36,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:36,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-10 01:37:36,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844637379] [2022-01-10 01:37:36,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:36,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 01:37:36,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:36,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 01:37:36,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:37:36,056 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 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 01:37:36,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:36,711 INFO L93 Difference]: Finished difference Result 742 states and 1020 transitions. [2022-01-10 01:37:36,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 01:37:36,711 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 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 62 [2022-01-10 01:37:36,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:36,717 INFO L225 Difference]: With dead ends: 742 [2022-01-10 01:37:36,717 INFO L226 Difference]: Without dead ends: 737 [2022-01-10 01:37:36,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2022-01-10 01:37:36,719 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1548 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:36,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 1148 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:37:36,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2022-01-10 01:37:36,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 338. [2022-01-10 01:37:36,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3547400611620795) internal successors, (443), 337 states have internal predecessors, (443), 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 01:37:36,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 443 transitions. [2022-01-10 01:37:36,749 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 443 transitions. Word has length 62 [2022-01-10 01:37:36,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:36,750 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 443 transitions. [2022-01-10 01:37:36,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 10 states have internal predecessors, (62), 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 01:37:36,750 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 443 transitions. [2022-01-10 01:37:36,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 01:37:36,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:36,751 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] [2022-01-10 01:37:36,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:37:36,751 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:36,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:36,751 INFO L85 PathProgramCache]: Analyzing trace with hash 679005537, now seen corresponding path program 1 times [2022-01-10 01:37:36,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:36,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921677731] [2022-01-10 01:37:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:36,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:36,857 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 01:37:36,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:36,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921677731] [2022-01-10 01:37:36,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921677731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:36,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:36,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:37:36,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310721247] [2022-01-10 01:37:36,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:36,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:37:36,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:36,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:37:36,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:37:36,858 INFO L87 Difference]: Start difference. First operand 338 states and 443 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 01:37:37,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:37,188 INFO L93 Difference]: Finished difference Result 688 states and 910 transitions. [2022-01-10 01:37:37,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 01:37:37,188 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 62 [2022-01-10 01:37:37,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:37,190 INFO L225 Difference]: With dead ends: 688 [2022-01-10 01:37:37,190 INFO L226 Difference]: Without dead ends: 503 [2022-01-10 01:37:37,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-01-10 01:37:37,191 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 1618 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:37,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1618 Valid, 632 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:37:37,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-01-10 01:37:37,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 338. [2022-01-10 01:37:37,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3516819571865444) internal successors, (442), 337 states have internal predecessors, (442), 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 01:37:37,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 442 transitions. [2022-01-10 01:37:37,214 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 442 transitions. Word has length 62 [2022-01-10 01:37:37,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:37,215 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 442 transitions. [2022-01-10 01:37:37,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 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 01:37:37,215 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 442 transitions. [2022-01-10 01:37:37,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:37:37,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:37,215 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] [2022-01-10 01:37:37,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:37:37,216 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:37,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:37,216 INFO L85 PathProgramCache]: Analyzing trace with hash -2031197374, now seen corresponding path program 1 times [2022-01-10 01:37:37,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:37,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080670114] [2022-01-10 01:37:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:37,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:37,286 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 01:37:37,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:37,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080670114] [2022-01-10 01:37:37,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080670114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:37,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:37,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:37,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173494480] [2022-01-10 01:37:37,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:37,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:37,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:37,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:37,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:37,287 INFO L87 Difference]: Start difference. First operand 338 states and 442 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:37,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:37,769 INFO L93 Difference]: Finished difference Result 856 states and 1186 transitions. [2022-01-10 01:37:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:37,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-01-10 01:37:37,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:37,771 INFO L225 Difference]: With dead ends: 856 [2022-01-10 01:37:37,771 INFO L226 Difference]: Without dead ends: 745 [2022-01-10 01:37:37,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:37:37,772 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 949 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:37,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [949 Valid, 962 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:37:37,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-01-10 01:37:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 338. [2022-01-10 01:37:37,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.348623853211009) internal successors, (441), 337 states have internal predecessors, (441), 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 01:37:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 441 transitions. [2022-01-10 01:37:37,803 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 441 transitions. Word has length 64 [2022-01-10 01:37:37,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:37,804 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 441 transitions. [2022-01-10 01:37:37,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:37,804 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 441 transitions. [2022-01-10 01:37:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:37:37,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:37,804 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] [2022-01-10 01:37:37,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 01:37:37,805 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:37,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:37,805 INFO L85 PathProgramCache]: Analyzing trace with hash -119000272, now seen corresponding path program 1 times [2022-01-10 01:37:37,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:37,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625376813] [2022-01-10 01:37:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:37,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:37,871 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 01:37:37,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:37,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625376813] [2022-01-10 01:37:37,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625376813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:37,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:37,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:37,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398276297] [2022-01-10 01:37:37,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:37,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:37,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:37,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:37,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:37,873 INFO L87 Difference]: Start difference. First operand 338 states and 441 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:38,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:38,408 INFO L93 Difference]: Finished difference Result 888 states and 1233 transitions. [2022-01-10 01:37:38,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:38,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-01-10 01:37:38,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:38,411 INFO L225 Difference]: With dead ends: 888 [2022-01-10 01:37:38,411 INFO L226 Difference]: Without dead ends: 765 [2022-01-10 01:37:38,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:37:38,412 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 1261 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:38,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 1251 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:37:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-01-10 01:37:38,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 338. [2022-01-10 01:37:38,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.345565749235474) internal successors, (440), 337 states have internal predecessors, (440), 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 01:37:38,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 440 transitions. [2022-01-10 01:37:38,441 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 440 transitions. Word has length 64 [2022-01-10 01:37:38,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:38,441 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 440 transitions. [2022-01-10 01:37:38,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:38,441 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 440 transitions. [2022-01-10 01:37:38,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:37:38,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:38,442 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] [2022-01-10 01:37:38,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 01:37:38,442 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:38,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:38,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1520301075, now seen corresponding path program 1 times [2022-01-10 01:37:38,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:38,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687677726] [2022-01-10 01:37:38,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:38,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:38,505 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 01:37:38,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:38,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687677726] [2022-01-10 01:37:38,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687677726] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:38,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:38,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:38,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231913169] [2022-01-10 01:37:38,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:38,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:38,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:38,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:38,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:38,506 INFO L87 Difference]: Start difference. First operand 338 states and 440 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:39,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:39,042 INFO L93 Difference]: Finished difference Result 853 states and 1181 transitions. [2022-01-10 01:37:39,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:39,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-01-10 01:37:39,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:39,044 INFO L225 Difference]: With dead ends: 853 [2022-01-10 01:37:39,044 INFO L226 Difference]: Without dead ends: 745 [2022-01-10 01:37:39,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:37:39,045 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 1201 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:39,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 1116 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:37:39,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-01-10 01:37:39,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 338. [2022-01-10 01:37:39,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.342507645259939) internal successors, (439), 337 states have internal predecessors, (439), 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 01:37:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 439 transitions. [2022-01-10 01:37:39,079 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 439 transitions. Word has length 64 [2022-01-10 01:37:39,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:39,079 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 439 transitions. [2022-01-10 01:37:39,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:39,079 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 439 transitions. [2022-01-10 01:37:39,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:37:39,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:39,080 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] [2022-01-10 01:37:39,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 01:37:39,080 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:39,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:39,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1508633347, now seen corresponding path program 1 times [2022-01-10 01:37:39,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:39,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039572439] [2022-01-10 01:37:39,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:39,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:39,153 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 01:37:39,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:39,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039572439] [2022-01-10 01:37:39,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039572439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:39,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:39,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:39,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264671826] [2022-01-10 01:37:39,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:39,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:39,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:39,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:39,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:39,155 INFO L87 Difference]: Start difference. First operand 338 states and 439 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:39,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:39,718 INFO L93 Difference]: Finished difference Result 750 states and 1022 transitions. [2022-01-10 01:37:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:39,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-01-10 01:37:39,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:39,720 INFO L225 Difference]: With dead ends: 750 [2022-01-10 01:37:39,720 INFO L226 Difference]: Without dead ends: 745 [2022-01-10 01:37:39,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:37:39,721 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 785 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:39,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 1252 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:37:39,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-01-10 01:37:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 338. [2022-01-10 01:37:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3394495412844036) internal successors, (438), 337 states have internal predecessors, (438), 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 01:37:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 438 transitions. [2022-01-10 01:37:39,750 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 438 transitions. Word has length 64 [2022-01-10 01:37:39,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:39,750 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 438 transitions. [2022-01-10 01:37:39,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:39,751 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 438 transitions. [2022-01-10 01:37:39,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:37:39,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:39,751 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] [2022-01-10 01:37:39,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 01:37:39,751 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:39,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:39,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1008042549, now seen corresponding path program 1 times [2022-01-10 01:37:39,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:39,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730383970] [2022-01-10 01:37:39,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:39,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:39,821 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 01:37:39,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:39,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730383970] [2022-01-10 01:37:39,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730383970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:39,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:39,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:39,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715988594] [2022-01-10 01:37:39,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:39,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:39,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:39,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:39,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:39,823 INFO L87 Difference]: Start difference. First operand 338 states and 438 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:40,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:40,431 INFO L93 Difference]: Finished difference Result 782 states and 1068 transitions. [2022-01-10 01:37:40,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:40,432 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 64 [2022-01-10 01:37:40,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:40,434 INFO L225 Difference]: With dead ends: 782 [2022-01-10 01:37:40,434 INFO L226 Difference]: Without dead ends: 765 [2022-01-10 01:37:40,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:37:40,434 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 1420 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:40,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1420 Valid, 1308 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:37:40,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-01-10 01:37:40,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 338. [2022-01-10 01:37:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 327 states have (on average 1.3333333333333333) internal successors, (436), 337 states have internal predecessors, (436), 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 01:37:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 436 transitions. [2022-01-10 01:37:40,467 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 436 transitions. Word has length 64 [2022-01-10 01:37:40,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:40,467 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 436 transitions. [2022-01-10 01:37:40,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 states have internal predecessors, (64), 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 01:37:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 436 transitions. [2022-01-10 01:37:40,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:37:40,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:40,468 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] [2022-01-10 01:37:40,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 01:37:40,468 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:40,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:40,468 INFO L85 PathProgramCache]: Analyzing trace with hash 370944031, now seen corresponding path program 1 times [2022-01-10 01:37:40,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:40,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261114471] [2022-01-10 01:37:40,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:40,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:40,688 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 01:37:40,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:40,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261114471] [2022-01-10 01:37:40,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261114471] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:40,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:40,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:37:40,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253863034] [2022-01-10 01:37:40,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:40,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 01:37:40,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:40,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 01:37:40,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:37:40,689 INFO L87 Difference]: Start difference. First operand 338 states and 436 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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 01:37:41,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:41,344 INFO L93 Difference]: Finished difference Result 860 states and 1165 transitions. [2022-01-10 01:37:41,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:41,345 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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 66 [2022-01-10 01:37:41,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:41,346 INFO L225 Difference]: With dead ends: 860 [2022-01-10 01:37:41,346 INFO L226 Difference]: Without dead ends: 691 [2022-01-10 01:37:41,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:37:41,349 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 1211 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:41,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 1897 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:37:41,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2022-01-10 01:37:41,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 275. [2022-01-10 01:37:41,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 274 states have internal predecessors, (359), 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 01:37:41,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 359 transitions. [2022-01-10 01:37:41,390 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 359 transitions. Word has length 66 [2022-01-10 01:37:41,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:41,390 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 359 transitions. [2022-01-10 01:37:41,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 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 01:37:41,390 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 359 transitions. [2022-01-10 01:37:41,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:37:41,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:41,390 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] [2022-01-10 01:37:41,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 01:37:41,391 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:41,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:41,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1787778406, now seen corresponding path program 1 times [2022-01-10 01:37:41,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:41,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705789058] [2022-01-10 01:37:41,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:41,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:41,829 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 01:37:41,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:41,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705789058] [2022-01-10 01:37:41,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705789058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:41,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:41,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-01-10 01:37:41,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691603516] [2022-01-10 01:37:41,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:41,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-10 01:37:41,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:41,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-10 01:37:41,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-01-10 01:37:41,831 INFO L87 Difference]: Start difference. First operand 275 states and 359 transitions. Second operand has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 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 01:37:42,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:42,826 INFO L93 Difference]: Finished difference Result 702 states and 948 transitions. [2022-01-10 01:37:42,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-10 01:37:42,830 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 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 66 [2022-01-10 01:37:42,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:42,832 INFO L225 Difference]: With dead ends: 702 [2022-01-10 01:37:42,832 INFO L226 Difference]: Without dead ends: 592 [2022-01-10 01:37:42,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-01-10 01:37:42,833 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 1485 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:42,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1485 Valid, 1921 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:37:42,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2022-01-10 01:37:42,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 273. [2022-01-10 01:37:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 266 states have (on average 1.3345864661654134) internal successors, (355), 272 states have internal predecessors, (355), 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 01:37:42,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 355 transitions. [2022-01-10 01:37:42,877 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 355 transitions. Word has length 66 [2022-01-10 01:37:42,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:42,877 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 355 transitions. [2022-01-10 01:37:42,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 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 01:37:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 355 transitions. [2022-01-10 01:37:42,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:37:42,879 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:42,879 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] [2022-01-10 01:37:42,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 01:37:42,880 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:42,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:42,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1127331716, now seen corresponding path program 1 times [2022-01-10 01:37:42,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:42,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884234605] [2022-01-10 01:37:42,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:42,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:43,552 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 01:37:43,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:43,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884234605] [2022-01-10 01:37:43,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884234605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:43,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:43,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-10 01:37:43,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390286014] [2022-01-10 01:37:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:43,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-10 01:37:43,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:43,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-10 01:37:43,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2022-01-10 01:37:43,554 INFO L87 Difference]: Start difference. First operand 273 states and 355 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 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 01:37:45,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:45,490 INFO L93 Difference]: Finished difference Result 454 states and 586 transitions. [2022-01-10 01:37:45,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-10 01:37:45,490 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 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 66 [2022-01-10 01:37:45,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:45,492 INFO L225 Difference]: With dead ends: 454 [2022-01-10 01:37:45,492 INFO L226 Difference]: Without dead ends: 450 [2022-01-10 01:37:45,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=351, Invalid=1811, Unknown=0, NotChecked=0, Total=2162 [2022-01-10 01:37:45,493 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 657 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:45,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 2840 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:37:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-01-10 01:37:45,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 279. [2022-01-10 01:37:45,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 272 states have (on average 1.3345588235294117) internal successors, (363), 278 states have internal predecessors, (363), 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 01:37:45,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 363 transitions. [2022-01-10 01:37:45,554 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 363 transitions. Word has length 66 [2022-01-10 01:37:45,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:45,555 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 363 transitions. [2022-01-10 01:37:45,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 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 01:37:45,555 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 363 transitions. [2022-01-10 01:37:45,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:37:45,555 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:45,556 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] [2022-01-10 01:37:45,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 01:37:45,556 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:45,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash -653185432, now seen corresponding path program 1 times [2022-01-10 01:37:45,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:45,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695289265] [2022-01-10 01:37:45,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:45,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:45,910 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 01:37:45,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:45,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695289265] [2022-01-10 01:37:45,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695289265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:45,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:45,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-01-10 01:37:45,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898479846] [2022-01-10 01:37:45,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:45,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-10 01:37:45,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:45,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-10 01:37:45,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:37:45,911 INFO L87 Difference]: Start difference. First operand 279 states and 363 transitions. Second operand has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 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 01:37:46,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:46,760 INFO L93 Difference]: Finished difference Result 403 states and 539 transitions. [2022-01-10 01:37:46,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-10 01:37:46,761 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 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 66 [2022-01-10 01:37:46,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:46,761 INFO L225 Difference]: With dead ends: 403 [2022-01-10 01:37:46,761 INFO L226 Difference]: Without dead ends: 290 [2022-01-10 01:37:46,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=253, Invalid=1229, Unknown=0, NotChecked=0, Total=1482 [2022-01-10 01:37:46,762 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 463 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:46,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2141 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:37:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-01-10 01:37:46,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 278. [2022-01-10 01:37:46,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 271 states have (on average 1.3284132841328413) internal successors, (360), 277 states have internal predecessors, (360), 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 01:37:46,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 360 transitions. [2022-01-10 01:37:46,810 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 360 transitions. Word has length 66 [2022-01-10 01:37:46,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:46,810 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 360 transitions. [2022-01-10 01:37:46,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.142857142857143) internal successors, (66), 21 states have internal predecessors, (66), 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 01:37:46,810 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 360 transitions. [2022-01-10 01:37:46,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:37:46,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:46,811 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] [2022-01-10 01:37:46,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 01:37:46,811 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:46,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:46,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1673815221, now seen corresponding path program 1 times [2022-01-10 01:37:46,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:46,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192711439] [2022-01-10 01:37:46,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:46,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:47,117 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 01:37:47,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:47,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192711439] [2022-01-10 01:37:47,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192711439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:47,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:47,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-10 01:37:47,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477697100] [2022-01-10 01:37:47,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:47,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 01:37:47,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:47,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 01:37:47,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-10 01:37:47,119 INFO L87 Difference]: Start difference. First operand 278 states and 360 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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 01:37:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:47,887 INFO L93 Difference]: Finished difference Result 817 states and 1116 transitions. [2022-01-10 01:37:47,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:37:47,888 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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 67 [2022-01-10 01:37:47,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:47,889 INFO L225 Difference]: With dead ends: 817 [2022-01-10 01:37:47,889 INFO L226 Difference]: Without dead ends: 707 [2022-01-10 01:37:47,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-01-10 01:37:47,890 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 1117 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:47,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 1711 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:37:47,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-01-10 01:37:47,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 270. [2022-01-10 01:37:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 264 states have (on average 1.321969696969697) internal successors, (349), 269 states have internal predecessors, (349), 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 01:37:47,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 349 transitions. [2022-01-10 01:37:47,961 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 349 transitions. Word has length 67 [2022-01-10 01:37:47,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:47,961 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 349 transitions. [2022-01-10 01:37:47,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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 01:37:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 349 transitions. [2022-01-10 01:37:47,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:37:47,962 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:47,962 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] [2022-01-10 01:37:47,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 01:37:47,962 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1241294901, now seen corresponding path program 1 times [2022-01-10 01:37:47,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:47,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016269715] [2022-01-10 01:37:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:47,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:48,174 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 01:37:48,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:48,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016269715] [2022-01-10 01:37:48,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016269715] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:48,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:48,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-10 01:37:48,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356835103] [2022-01-10 01:37:48,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:48,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:37:48,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:37:48,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:37:48,176 INFO L87 Difference]: Start difference. First operand 270 states and 349 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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 01:37:48,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:48,688 INFO L93 Difference]: Finished difference Result 438 states and 576 transitions. [2022-01-10 01:37:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:37:48,688 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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 67 [2022-01-10 01:37:48,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:48,690 INFO L225 Difference]: With dead ends: 438 [2022-01-10 01:37:48,690 INFO L226 Difference]: Without dead ends: 434 [2022-01-10 01:37:48,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-01-10 01:37:48,690 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 1211 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:48,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 1072 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:37:48,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-01-10 01:37:48,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 260. [2022-01-10 01:37:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 255 states have (on average 1.3215686274509804) internal successors, (337), 259 states have internal predecessors, (337), 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 01:37:48,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 337 transitions. [2022-01-10 01:37:48,752 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 337 transitions. Word has length 67 [2022-01-10 01:37:48,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:48,752 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 337 transitions. [2022-01-10 01:37:48,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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 01:37:48,752 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 337 transitions. [2022-01-10 01:37:48,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:37:48,753 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:48,753 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] [2022-01-10 01:37:48,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 01:37:48,753 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:48,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:48,753 INFO L85 PathProgramCache]: Analyzing trace with hash -539222247, now seen corresponding path program 1 times [2022-01-10 01:37:48,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:48,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123594611] [2022-01-10 01:37:48,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:48,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:48,984 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 01:37:48,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:48,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123594611] [2022-01-10 01:37:48,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123594611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:48,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:48,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-10 01:37:48,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800479156] [2022-01-10 01:37:48,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:48,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 01:37:48,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:48,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 01:37:48,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-01-10 01:37:48,986 INFO L87 Difference]: Start difference. First operand 260 states and 337 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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 01:37:49,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:49,402 INFO L93 Difference]: Finished difference Result 529 states and 720 transitions. [2022-01-10 01:37:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:37:49,402 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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 67 [2022-01-10 01:37:49,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:49,404 INFO L225 Difference]: With dead ends: 529 [2022-01-10 01:37:49,404 INFO L226 Difference]: Without dead ends: 394 [2022-01-10 01:37:49,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-01-10 01:37:49,406 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 323 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:49,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 2495 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:37:49,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-01-10 01:37:49,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 251. [2022-01-10 01:37:49,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.3130081300813008) internal successors, (323), 250 states have internal predecessors, (323), 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 01:37:49,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 323 transitions. [2022-01-10 01:37:49,460 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 323 transitions. Word has length 67 [2022-01-10 01:37:49,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:49,461 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 323 transitions. [2022-01-10 01:37:49,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 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 01:37:49,461 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 323 transitions. [2022-01-10 01:37:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:37:49,461 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:49,461 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] [2022-01-10 01:37:49,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 01:37:49,463 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:49,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:49,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1128954968, now seen corresponding path program 1 times [2022-01-10 01:37:49,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:49,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065885857] [2022-01-10 01:37:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:49,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:49,558 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 01:37:49,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:49,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065885857] [2022-01-10 01:37:49,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065885857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:49,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:49,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:49,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294075474] [2022-01-10 01:37:49,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:49,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:49,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:49,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:49,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:49,559 INFO L87 Difference]: Start difference. First operand 251 states and 323 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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 01:37:49,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:49,928 INFO L93 Difference]: Finished difference Result 414 states and 545 transitions. [2022-01-10 01:37:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 01:37:49,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2022-01-10 01:37:49,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:49,929 INFO L225 Difference]: With dead ends: 414 [2022-01-10 01:37:49,929 INFO L226 Difference]: Without dead ends: 407 [2022-01-10 01:37:49,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-01-10 01:37:49,930 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 1128 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:49,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 554 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:37:49,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-01-10 01:37:49,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 251. [2022-01-10 01:37:49,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.3089430894308942) internal successors, (322), 250 states have internal predecessors, (322), 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 01:37:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 322 transitions. [2022-01-10 01:37:49,981 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 322 transitions. Word has length 67 [2022-01-10 01:37:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:49,982 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 322 transitions. [2022-01-10 01:37:49,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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 01:37:49,982 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 322 transitions. [2022-01-10 01:37:49,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:37:49,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:49,982 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] [2022-01-10 01:37:49,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 01:37:49,983 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash -710008920, now seen corresponding path program 1 times [2022-01-10 01:37:49,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:49,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312967836] [2022-01-10 01:37:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:49,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:50,046 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 01:37:50,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:50,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312967836] [2022-01-10 01:37:50,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312967836] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:50,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:50,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:37:50,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687704413] [2022-01-10 01:37:50,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:50,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:37:50,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:50,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:37:50,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:50,048 INFO L87 Difference]: Start difference. First operand 251 states and 322 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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 01:37:50,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:50,416 INFO L93 Difference]: Finished difference Result 553 states and 748 transitions. [2022-01-10 01:37:50,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 01:37:50,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2022-01-10 01:37:50,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:50,418 INFO L225 Difference]: With dead ends: 553 [2022-01-10 01:37:50,418 INFO L226 Difference]: Without dead ends: 417 [2022-01-10 01:37:50,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-01-10 01:37:50,419 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 747 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:50,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 669 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:37:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-01-10 01:37:50,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 251. [2022-01-10 01:37:50,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 246 states have (on average 1.3008130081300813) internal successors, (320), 250 states have internal predecessors, (320), 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 01:37:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 320 transitions. [2022-01-10 01:37:50,475 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 320 transitions. Word has length 67 [2022-01-10 01:37:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:50,475 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 320 transitions. [2022-01-10 01:37:50,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 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 01:37:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 320 transitions. [2022-01-10 01:37:50,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:37:50,475 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:50,475 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] [2022-01-10 01:37:50,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 01:37:50,476 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:50,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:50,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1303055616, now seen corresponding path program 1 times [2022-01-10 01:37:50,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:50,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975134007] [2022-01-10 01:37:50,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:50,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:50,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:50,599 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 01:37:50,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:50,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975134007] [2022-01-10 01:37:50,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975134007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:50,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:50,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:37:50,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996668942] [2022-01-10 01:37:50,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:50,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:37:50,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:50,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:37:50,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:37:50,601 INFO L87 Difference]: Start difference. First operand 251 states and 320 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 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 01:37:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:51,414 INFO L93 Difference]: Finished difference Result 701 states and 960 transitions. [2022-01-10 01:37:51,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-10 01:37:51,415 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 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 67 [2022-01-10 01:37:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:51,416 INFO L225 Difference]: With dead ends: 701 [2022-01-10 01:37:51,416 INFO L226 Difference]: Without dead ends: 694 [2022-01-10 01:37:51,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-01-10 01:37:51,417 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 1805 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:51,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 1025 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:37:51,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2022-01-10 01:37:51,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 255. [2022-01-10 01:37:51,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.296) internal successors, (324), 254 states have internal predecessors, (324), 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 01:37:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 324 transitions. [2022-01-10 01:37:51,484 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 324 transitions. Word has length 67 [2022-01-10 01:37:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:51,484 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 324 transitions. [2022-01-10 01:37:51,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 11 states have internal predecessors, (67), 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 01:37:51,484 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 324 transitions. [2022-01-10 01:37:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:37:51,485 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:51,485 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] [2022-01-10 01:37:51,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 01:37:51,485 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash 763644804, now seen corresponding path program 1 times [2022-01-10 01:37:51,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:51,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010513800] [2022-01-10 01:37:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:51,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:51,679 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 01:37:51,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:51,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010513800] [2022-01-10 01:37:51,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010513800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:51,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:51,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-10 01:37:51,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492120162] [2022-01-10 01:37:51,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:51,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:37:51,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:51,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:37:51,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:37:51,681 INFO L87 Difference]: Start difference. First operand 255 states and 324 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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 01:37:52,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:52,104 INFO L93 Difference]: Finished difference Result 417 states and 549 transitions. [2022-01-10 01:37:52,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 01:37:52,104 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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 67 [2022-01-10 01:37:52,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:52,105 INFO L225 Difference]: With dead ends: 417 [2022-01-10 01:37:52,105 INFO L226 Difference]: Without dead ends: 385 [2022-01-10 01:37:52,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:37:52,106 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 689 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:52,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [689 Valid, 1597 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:37:52,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-01-10 01:37:52,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 223. [2022-01-10 01:37:52,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 220 states have (on average 1.3136363636363637) internal successors, (289), 222 states have internal predecessors, (289), 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 01:37:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 289 transitions. [2022-01-10 01:37:52,170 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 289 transitions. Word has length 67 [2022-01-10 01:37:52,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:52,170 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 289 transitions. [2022-01-10 01:37:52,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 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 01:37:52,171 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 289 transitions. [2022-01-10 01:37:52,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 01:37:52,171 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:52,171 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] [2022-01-10 01:37:52,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 01:37:52,171 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:52,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:52,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1308874992, now seen corresponding path program 1 times [2022-01-10 01:37:52,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:52,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574782830] [2022-01-10 01:37:52,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:52,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:52,442 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 01:37:52,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:52,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574782830] [2022-01-10 01:37:52,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574782830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:52,443 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:52,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-10 01:37:52,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684919000] [2022-01-10 01:37:52,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:52,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-10 01:37:52,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:52,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-10 01:37:52,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-01-10 01:37:52,444 INFO L87 Difference]: Start difference. First operand 223 states and 289 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 01:37:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:53,617 INFO L93 Difference]: Finished difference Result 1051 states and 1500 transitions. [2022-01-10 01:37:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-10 01:37:53,617 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 69 [2022-01-10 01:37:53,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:53,621 INFO L225 Difference]: With dead ends: 1051 [2022-01-10 01:37:53,621 INFO L226 Difference]: Without dead ends: 1045 [2022-01-10 01:37:53,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-01-10 01:37:53,622 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1276 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:53,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1276 Valid, 3013 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:37:53,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-01-10 01:37:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 217. [2022-01-10 01:37:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 215 states have (on average 1.3116279069767443) internal successors, (282), 216 states have internal predecessors, (282), 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 01:37:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 282 transitions. [2022-01-10 01:37:53,704 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 282 transitions. Word has length 69 [2022-01-10 01:37:53,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:53,704 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 282 transitions. [2022-01-10 01:37:53,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 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 01:37:53,704 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 282 transitions. [2022-01-10 01:37:53,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 01:37:53,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:53,705 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] [2022-01-10 01:37:53,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 01:37:53,705 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:53,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:53,705 INFO L85 PathProgramCache]: Analyzing trace with hash -284944504, now seen corresponding path program 1 times [2022-01-10 01:37:53,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:53,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369386393] [2022-01-10 01:37:53,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:53,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:54,179 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 01:37:54,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:54,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369386393] [2022-01-10 01:37:54,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369386393] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:54,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:54,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-10 01:37:54,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112587009] [2022-01-10 01:37:54,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:54,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-10 01:37:54,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:54,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-10 01:37:54,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:37:54,181 INFO L87 Difference]: Start difference. First operand 217 states and 282 transitions. Second operand has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 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 01:37:55,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:55,353 INFO L93 Difference]: Finished difference Result 249 states and 315 transitions. [2022-01-10 01:37:55,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:37:55,354 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 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 69 [2022-01-10 01:37:55,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:55,355 INFO L225 Difference]: With dead ends: 249 [2022-01-10 01:37:55,355 INFO L226 Difference]: Without dead ends: 241 [2022-01-10 01:37:55,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=282, Invalid=1358, Unknown=0, NotChecked=0, Total=1640 [2022-01-10 01:37:55,356 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 346 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:55,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 1719 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:37:55,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-01-10 01:37:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 226. [2022-01-10 01:37:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.3080357142857142) internal successors, (293), 225 states have internal predecessors, (293), 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 01:37:55,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 293 transitions. [2022-01-10 01:37:55,421 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 293 transitions. Word has length 69 [2022-01-10 01:37:55,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:55,421 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 293 transitions. [2022-01-10 01:37:55,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1363636363636362) internal successors, (69), 22 states have internal predecessors, (69), 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 01:37:55,421 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 293 transitions. [2022-01-10 01:37:55,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 01:37:55,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:55,422 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] [2022-01-10 01:37:55,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 01:37:55,422 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:55,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:55,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1768135991, now seen corresponding path program 1 times [2022-01-10 01:37:55,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:55,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057027387] [2022-01-10 01:37:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:55,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:55,632 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 01:37:55,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:55,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057027387] [2022-01-10 01:37:55,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057027387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:55,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:55,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-10 01:37:55,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535984637] [2022-01-10 01:37:55,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:55,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:37:55,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:55,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:37:55,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:37:55,634 INFO L87 Difference]: Start difference. First operand 226 states and 293 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 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 01:37:56,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:56,313 INFO L93 Difference]: Finished difference Result 628 states and 871 transitions. [2022-01-10 01:37:56,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:37:56,314 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 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 70 [2022-01-10 01:37:56,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:56,315 INFO L225 Difference]: With dead ends: 628 [2022-01-10 01:37:56,315 INFO L226 Difference]: Without dead ends: 613 [2022-01-10 01:37:56,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-01-10 01:37:56,316 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 793 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:56,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 2241 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:37:56,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-01-10 01:37:56,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 205. [2022-01-10 01:37:56,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.3137254901960784) internal successors, (268), 204 states have internal predecessors, (268), 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 01:37:56,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 268 transitions. [2022-01-10 01:37:56,386 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 268 transitions. Word has length 70 [2022-01-10 01:37:56,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:56,386 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 268 transitions. [2022-01-10 01:37:56,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 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 01:37:56,386 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 268 transitions. [2022-01-10 01:37:56,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 01:37:56,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:56,387 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] [2022-01-10 01:37:56,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 01:37:56,387 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:56,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:56,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1208516883, now seen corresponding path program 1 times [2022-01-10 01:37:56,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:56,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978262971] [2022-01-10 01:37:56,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:56,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:56,435 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 01:37:56,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:56,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978262971] [2022-01-10 01:37:56,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978262971] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:56,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:56,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:37:56,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793786757] [2022-01-10 01:37:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:56,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:37:56,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:56,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:37:56,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:37:56,437 INFO L87 Difference]: Start difference. First operand 205 states and 268 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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 01:37:56,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:56,908 INFO L93 Difference]: Finished difference Result 1053 states and 1548 transitions. [2022-01-10 01:37:56,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 01:37:56,908 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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 92 [2022-01-10 01:37:56,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:56,911 INFO L225 Difference]: With dead ends: 1053 [2022-01-10 01:37:56,911 INFO L226 Difference]: Without dead ends: 947 [2022-01-10 01:37:56,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:37:56,912 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 905 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:56,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 961 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:37:56,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2022-01-10 01:37:57,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 309. [2022-01-10 01:37:57,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.3733766233766234) internal successors, (423), 308 states have internal predecessors, (423), 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 01:37:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 423 transitions. [2022-01-10 01:37:57,036 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 423 transitions. Word has length 92 [2022-01-10 01:37:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:57,036 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 423 transitions. [2022-01-10 01:37:57,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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 01:37:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 423 transitions. [2022-01-10 01:37:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:37:57,037 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:57,037 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] [2022-01-10 01:37:57,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 01:37:57,037 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:57,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:57,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1324206254, now seen corresponding path program 1 times [2022-01-10 01:37:57,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:57,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70036645] [2022-01-10 01:37:57,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:57,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:57,077 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 01:37:57,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:57,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70036645] [2022-01-10 01:37:57,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70036645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:57,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:57,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:37:57,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275034647] [2022-01-10 01:37:57,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:57,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:37:57,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:57,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:37:57,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:37:57,079 INFO L87 Difference]: Start difference. First operand 309 states and 423 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 01:37:57,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:57,601 INFO L93 Difference]: Finished difference Result 1255 states and 1839 transitions. [2022-01-10 01:37:57,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:37:57,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2022-01-10 01:37:57,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:57,604 INFO L225 Difference]: With dead ends: 1255 [2022-01-10 01:37:57,604 INFO L226 Difference]: Without dead ends: 1045 [2022-01-10 01:37:57,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:37:57,604 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 655 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:57,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [655 Valid, 668 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:37:57,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-01-10 01:37:57,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 517. [2022-01-10 01:37:57,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 516 states have (on average 1.4244186046511629) internal successors, (735), 516 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 01:37:57,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 735 transitions. [2022-01-10 01:37:57,833 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 735 transitions. Word has length 94 [2022-01-10 01:37:57,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:57,833 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 735 transitions. [2022-01-10 01:37:57,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 01:37:57,833 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 735 transitions. [2022-01-10 01:37:57,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:37:57,834 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:57,834 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] [2022-01-10 01:37:57,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 01:37:57,834 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:57,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1309824789, now seen corresponding path program 1 times [2022-01-10 01:37:57,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:57,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295649653] [2022-01-10 01:37:57,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:57,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:57,933 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 01:37:57,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:57,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295649653] [2022-01-10 01:37:57,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295649653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:57,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:57,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:37:57,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323811973] [2022-01-10 01:37:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:57,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:37:57,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:57,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:37:57,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:37:57,936 INFO L87 Difference]: Start difference. First operand 517 states and 735 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 01:37:58,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:58,242 INFO L93 Difference]: Finished difference Result 937 states and 1363 transitions. [2022-01-10 01:37:58,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:37:58,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2022-01-10 01:37:58,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:58,244 INFO L225 Difference]: With dead ends: 937 [2022-01-10 01:37:58,244 INFO L226 Difference]: Without dead ends: 519 [2022-01-10 01:37:58,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:37:58,245 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 423 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:58,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [423 Valid, 384 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:37:58,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2022-01-10 01:37:58,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 517. [2022-01-10 01:37:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 516 states have (on average 1.4166666666666667) internal successors, (731), 516 states have internal predecessors, (731), 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 01:37:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 731 transitions. [2022-01-10 01:37:58,478 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 731 transitions. Word has length 94 [2022-01-10 01:37:58,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:58,478 INFO L470 AbstractCegarLoop]: Abstraction has 517 states and 731 transitions. [2022-01-10 01:37:58,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 01:37:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 731 transitions. [2022-01-10 01:37:58,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:37:58,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:58,479 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] [2022-01-10 01:37:58,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 01:37:58,479 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:58,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:58,480 INFO L85 PathProgramCache]: Analyzing trace with hash 570084468, now seen corresponding path program 1 times [2022-01-10 01:37:58,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:58,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912455029] [2022-01-10 01:37:58,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:58,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:58,514 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 01:37:58,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:58,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912455029] [2022-01-10 01:37:58,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912455029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:58,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:58,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:37:58,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979790223] [2022-01-10 01:37:58,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:58,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:37:58,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:58,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:37:58,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:37:58,516 INFO L87 Difference]: Start difference. First operand 517 states and 731 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 01:37:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:37:58,964 INFO L93 Difference]: Finished difference Result 1301 states and 1889 transitions. [2022-01-10 01:37:58,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:37:58,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2022-01-10 01:37:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:37:58,967 INFO L225 Difference]: With dead ends: 1301 [2022-01-10 01:37:58,967 INFO L226 Difference]: Without dead ends: 883 [2022-01-10 01:37:58,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:37:58,968 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 90 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:37:58,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 253 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:37:58,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-01-10 01:37:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 873. [2022-01-10 01:37:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 872 states have (on average 1.4185779816513762) internal successors, (1237), 872 states have internal predecessors, (1237), 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 01:37:59,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1237 transitions. [2022-01-10 01:37:59,402 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1237 transitions. Word has length 94 [2022-01-10 01:37:59,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:37:59,402 INFO L470 AbstractCegarLoop]: Abstraction has 873 states and 1237 transitions. [2022-01-10 01:37:59,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 01:37:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1237 transitions. [2022-01-10 01:37:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:37:59,403 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:37:59,403 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] [2022-01-10 01:37:59,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 01:37:59,404 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:37:59,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:37:59,404 INFO L85 PathProgramCache]: Analyzing trace with hash -337360546, now seen corresponding path program 1 times [2022-01-10 01:37:59,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:37:59,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015423747] [2022-01-10 01:37:59,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:37:59,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:37:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:37:59,446 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 01:37:59,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:37:59,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015423747] [2022-01-10 01:37:59,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015423747] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:37:59,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:37:59,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:37:59,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336461340] [2022-01-10 01:37:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:37:59,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:37:59,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:37:59,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:37:59,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:37:59,447 INFO L87 Difference]: Start difference. First operand 873 states and 1237 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 01:38:00,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:00,662 INFO L93 Difference]: Finished difference Result 2621 states and 3786 transitions. [2022-01-10 01:38:00,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:38:00,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2022-01-10 01:38:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:00,667 INFO L225 Difference]: With dead ends: 2621 [2022-01-10 01:38:00,667 INFO L226 Difference]: Without dead ends: 2233 [2022-01-10 01:38:00,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:00,669 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 622 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:00,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 690 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:00,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2022-01-10 01:38:01,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 1453. [2022-01-10 01:38:01,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1452 states have (on average 1.4318181818181819) internal successors, (2079), 1452 states have internal predecessors, (2079), 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 01:38:01,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 2079 transitions. [2022-01-10 01:38:01,497 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 2079 transitions. Word has length 94 [2022-01-10 01:38:01,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:01,497 INFO L470 AbstractCegarLoop]: Abstraction has 1453 states and 2079 transitions. [2022-01-10 01:38:01,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 01:38:01,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 2079 transitions. [2022-01-10 01:38:01,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:38:01,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:01,498 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] [2022-01-10 01:38:01,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 01:38:01,498 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:01,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:01,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1456780136, now seen corresponding path program 1 times [2022-01-10 01:38:01,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:01,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280405932] [2022-01-10 01:38:01,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:01,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:01,540 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 01:38:01,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:01,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280405932] [2022-01-10 01:38:01,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280405932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:01,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:01,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:38:01,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289729759] [2022-01-10 01:38:01,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:01,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:38:01,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:01,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:38:01,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:38:01,542 INFO L87 Difference]: Start difference. First operand 1453 states and 2079 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 01:38:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:02,991 INFO L93 Difference]: Finished difference Result 3007 states and 4348 transitions. [2022-01-10 01:38:02,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:38:02,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 94 [2022-01-10 01:38:02,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:02,997 INFO L225 Difference]: With dead ends: 3007 [2022-01-10 01:38:02,997 INFO L226 Difference]: Without dead ends: 2619 [2022-01-10 01:38:02,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:02,998 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 590 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:02,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [590 Valid, 743 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:02,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2022-01-10 01:38:03,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 1839. [2022-01-10 01:38:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1838 states have (on average 1.4368879216539716) internal successors, (2641), 1838 states have internal predecessors, (2641), 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 01:38:03,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2641 transitions. [2022-01-10 01:38:03,959 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2641 transitions. Word has length 94 [2022-01-10 01:38:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:03,959 INFO L470 AbstractCegarLoop]: Abstraction has 1839 states and 2641 transitions. [2022-01-10 01:38:03,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 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 01:38:03,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2641 transitions. [2022-01-10 01:38:03,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 01:38:03,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:03,960 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] [2022-01-10 01:38:03,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 01:38:03,960 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:03,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1890695249, now seen corresponding path program 1 times [2022-01-10 01:38:03,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:03,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412665404] [2022-01-10 01:38:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:03,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:03,989 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 01:38:03,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:03,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412665404] [2022-01-10 01:38:03,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412665404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:03,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:03,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:38:03,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005421123] [2022-01-10 01:38:03,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:03,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:38:03,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:03,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:38:03,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:38:03,990 INFO L87 Difference]: Start difference. First operand 1839 states and 2641 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 01:38:05,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:05,910 INFO L93 Difference]: Finished difference Result 5175 states and 7455 transitions. [2022-01-10 01:38:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:38:05,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2022-01-10 01:38:05,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:05,919 INFO L225 Difference]: With dead ends: 5175 [2022-01-10 01:38:05,919 INFO L226 Difference]: Without dead ends: 3435 [2022-01-10 01:38:05,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:38:05,921 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 73 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:05,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 335 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:05,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2022-01-10 01:38:07,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3289. [2022-01-10 01:38:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 3288 states have (on average 1.4309610705596107) internal successors, (4705), 3288 states have internal predecessors, (4705), 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 01:38:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 4705 transitions. [2022-01-10 01:38:07,764 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 4705 transitions. Word has length 95 [2022-01-10 01:38:07,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:07,764 INFO L470 AbstractCegarLoop]: Abstraction has 3289 states and 4705 transitions. [2022-01-10 01:38:07,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 01:38:07,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 4705 transitions. [2022-01-10 01:38:07,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:38:07,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:07,765 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] [2022-01-10 01:38:07,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 01:38:07,765 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:07,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:07,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1608306199, now seen corresponding path program 1 times [2022-01-10 01:38:07,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:07,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830458800] [2022-01-10 01:38:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:07,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:07,795 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 01:38:07,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:07,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830458800] [2022-01-10 01:38:07,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830458800] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:07,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:07,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:38:07,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846276519] [2022-01-10 01:38:07,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:07,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:38:07,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:07,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:38:07,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:38:07,797 INFO L87 Difference]: Start difference. First operand 3289 states and 4705 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 01:38:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:11,159 INFO L93 Difference]: Finished difference Result 9381 states and 13395 transitions. [2022-01-10 01:38:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:38:11,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2022-01-10 01:38:11,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:11,169 INFO L225 Difference]: With dead ends: 9381 [2022-01-10 01:38:11,170 INFO L226 Difference]: Without dead ends: 6191 [2022-01-10 01:38:11,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:38:11,173 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 66 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:11,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 335 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:11,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2022-01-10 01:38:14,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 5901. [2022-01-10 01:38:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5901 states, 5900 states have (on average 1.4177966101694914) internal successors, (8365), 5900 states have internal predecessors, (8365), 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 01:38:14,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5901 states to 5901 states and 8365 transitions. [2022-01-10 01:38:14,527 INFO L78 Accepts]: Start accepts. Automaton has 5901 states and 8365 transitions. Word has length 96 [2022-01-10 01:38:14,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:14,528 INFO L470 AbstractCegarLoop]: Abstraction has 5901 states and 8365 transitions. [2022-01-10 01:38:14,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 01:38:14,528 INFO L276 IsEmpty]: Start isEmpty. Operand 5901 states and 8365 transitions. [2022-01-10 01:38:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 01:38:14,528 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:14,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:38:14,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 01:38:14,529 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:14,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash -916899152, now seen corresponding path program 1 times [2022-01-10 01:38:14,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:14,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953911687] [2022-01-10 01:38:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:14,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:14,559 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 01:38:14,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:14,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953911687] [2022-01-10 01:38:14,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953911687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:14,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:14,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:38:14,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839057841] [2022-01-10 01:38:14,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:14,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:38:14,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:14,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:38:14,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:38:14,562 INFO L87 Difference]: Start difference. First operand 5901 states and 8365 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 01:38:20,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:20,971 INFO L93 Difference]: Finished difference Result 16929 states and 23871 transitions. [2022-01-10 01:38:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:38:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2022-01-10 01:38:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:20,991 INFO L225 Difference]: With dead ends: 16929 [2022-01-10 01:38:20,991 INFO L226 Difference]: Without dead ends: 11127 [2022-01-10 01:38:20,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:38:20,996 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 56 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:20,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 335 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11127 states. [2022-01-10 01:38:27,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11127 to 10549. [2022-01-10 01:38:27,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10549 states, 10548 states have (on average 1.3982745544178992) internal successors, (14749), 10548 states have internal predecessors, (14749), 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 01:38:27,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10549 states to 10549 states and 14749 transitions. [2022-01-10 01:38:27,057 INFO L78 Accepts]: Start accepts. Automaton has 10549 states and 14749 transitions. Word has length 97 [2022-01-10 01:38:27,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:38:27,058 INFO L470 AbstractCegarLoop]: Abstraction has 10549 states and 14749 transitions. [2022-01-10 01:38:27,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 01:38:27,058 INFO L276 IsEmpty]: Start isEmpty. Operand 10549 states and 14749 transitions. [2022-01-10 01:38:27,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:38:27,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:38:27,058 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] [2022-01-10 01:38:27,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 01:38:27,059 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-01-10 01:38:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:38:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2063595932, now seen corresponding path program 1 times [2022-01-10 01:38:27,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:38:27,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640710238] [2022-01-10 01:38:27,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:38:27,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:38:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:38:27,104 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 01:38:27,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:38:27,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640710238] [2022-01-10 01:38:27,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640710238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:38:27,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:38:27,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:38:27,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064769347] [2022-01-10 01:38:27,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:38:27,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:38:27,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:38:27,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:38:27,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:38:27,106 INFO L87 Difference]: Start difference. First operand 10549 states and 14749 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 01:38:38,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:38:38,067 INFO L93 Difference]: Finished difference Result 18659 states and 25853 transitions. [2022-01-10 01:38:38,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 01:38:38,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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 98 [2022-01-10 01:38:38,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:38:38,090 INFO L225 Difference]: With dead ends: 18659 [2022-01-10 01:38:38,090 INFO L226 Difference]: Without dead ends: 18657 [2022-01-10 01:38:38,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:38:38,093 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 260 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:38:38,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 847 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:38:38,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18657 states.