/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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:30:07,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:30:07,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:30:08,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 01:30:08,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:30:08,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:30:08,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:30:08,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:30:08,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:30:08,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:30:08,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:30:08,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:30:08,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:30:08,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:30:08,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:30:08,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:30:08,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 01:30:08,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 01:30:08,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 01:30:08,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 01:30:08,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 01:30:08,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-10 01:30:08,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:30:08,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:30:08,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:30:08,069 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 01:30:08,094 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:30:08,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:30:08,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:30:08,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:30:08,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:30:08,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:30:08,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:30:08,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:30:08,096 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:30:08,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:30:08,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:30:08,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:30:08,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:30:08,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:30:08,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:30:08,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:30:08,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:30:08,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:30:08,098 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:30:08,099 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:30:08,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:30:08,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:30:08,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:30:08,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:30:08,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:30:08,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:30:08,326 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:30:08,326 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-01-10 01:30:08,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd427a33f/83df1d84abf543748bad95792c7a4eed/FLAGc8dde4643 [2022-01-10 01:30:08,940 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:30:08,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-01-10 01:30:08,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd427a33f/83df1d84abf543748bad95792c7a4eed/FLAGc8dde4643 [2022-01-10 01:30:09,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd427a33f/83df1d84abf543748bad95792c7a4eed [2022-01-10 01:30:09,362 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:30:09,363 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:30:09,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:30:09,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:30:09,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:30:09,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:30:09" (1/1) ... [2022-01-10 01:30:09,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1656191b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:09, skipping insertion in model container [2022-01-10 01:30:09,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:30:09" (1/1) ... [2022-01-10 01:30:09,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:30:09,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:30:09,755 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7172,7185] [2022-01-10 01:30:09,775 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[10914,10927] [2022-01-10 01:30:09,810 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[17944,17957] [2022-01-10 01:30:09,835 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24017,24030] [2022-01-10 01:30:09,873 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42645,42658] [2022-01-10 01:30:09,912 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[64626,64639] [2022-01-10 01:30:10,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:30:10,042 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:30:10,077 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7172,7185] [2022-01-10 01:30:10,091 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[10914,10927] [2022-01-10 01:30:10,110 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[17944,17957] [2022-01-10 01:30:10,131 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24017,24030] [2022-01-10 01:30:10,172 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42645,42658] [2022-01-10 01:30:10,220 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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[64626,64639] [2022-01-10 01:30:10,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:30:10,312 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:30:10,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10 WrapperNode [2022-01-10 01:30:10,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:30:10,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:30:10,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:30:10,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:30:10,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,458 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5288 [2022-01-10 01:30:10,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:30:10,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:30:10,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:30:10,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:30:10,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:30:10,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:30:10,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:30:10,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:30:10,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (1/1) ... [2022-01-10 01:30:10,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:30:10,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:30:10,581 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 01:30:10,662 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 01:30:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:30:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:30:10,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:30:10,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:30:10,952 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:30:10,953 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:30:12,532 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:30:12,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:30:12,549 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:30:12,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:30:12 BoogieIcfgContainer [2022-01-10 01:30:12,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:30:12,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:30:12,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:30:12,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:30:12,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:30:09" (1/3) ... [2022-01-10 01:30:12,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7effe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:30:12, skipping insertion in model container [2022-01-10 01:30:12,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:30:10" (2/3) ... [2022-01-10 01:30:12,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7effe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:30:12, skipping insertion in model container [2022-01-10 01:30:12,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:30:12" (3/3) ... [2022-01-10 01:30:12,571 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-01-10 01:30:12,574 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:30:12,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 01:30:12,629 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:30:12,633 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 01:30:12,634 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 01:30:12,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 1121 states, 1114 states have (on average 1.8285457809694794) internal successors, (2037), 1120 states have internal predecessors, (2037), 0 states have call successors, (0), 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 01:30:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 01:30:12,679 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:12,691 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] [2022-01-10 01:30:12,692 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:12,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:12,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1703299446, now seen corresponding path program 1 times [2022-01-10 01:30:12,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:12,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148906071] [2022-01-10 01:30:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:12,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:13,001 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 01:30:13,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:13,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148906071] [2022-01-10 01:30:13,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148906071] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:13,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:13,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:30:13,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146655328] [2022-01-10 01:30:13,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:13,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:30:13,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:13,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:30:13,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:30:13,032 INFO L87 Difference]: Start difference. First operand has 1121 states, 1114 states have (on average 1.8285457809694794) internal successors, (2037), 1120 states have internal predecessors, (2037), 0 states have call successors, (0), 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 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 01:30:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:14,008 INFO L93 Difference]: Finished difference Result 2061 states and 3646 transitions. [2022-01-10 01:30:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:30:14,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-10 01:30:14,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:14,023 INFO L225 Difference]: With dead ends: 2061 [2022-01-10 01:30:14,023 INFO L226 Difference]: Without dead ends: 1339 [2022-01-10 01:30:14,028 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 01:30:14,030 INFO L933 BasicCegarLoop]: 1064 mSDtfsCounter, 6427 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6427 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 1059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:14,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6427 Valid, 1421 Invalid, 1059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:30:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2022-01-10 01:30:14,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1327. [2022-01-10 01:30:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1321 states have (on average 1.336109008327025) internal successors, (1765), 1326 states have internal predecessors, (1765), 0 states have call successors, (0), 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 01:30:14,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1765 transitions. [2022-01-10 01:30:14,108 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1765 transitions. Word has length 51 [2022-01-10 01:30:14,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:14,108 INFO L470 AbstractCegarLoop]: Abstraction has 1327 states and 1765 transitions. [2022-01-10 01:30:14,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 01:30:14,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1765 transitions. [2022-01-10 01:30:14,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 01:30:14,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:14,111 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] [2022-01-10 01:30:14,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:30:14,111 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:14,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:14,112 INFO L85 PathProgramCache]: Analyzing trace with hash 199718681, now seen corresponding path program 1 times [2022-01-10 01:30:14,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:14,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571310377] [2022-01-10 01:30:14,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:14,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:14,200 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 01:30:14,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:14,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571310377] [2022-01-10 01:30:14,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571310377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:14,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:14,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:30:14,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615286972] [2022-01-10 01:30:14,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:14,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:30:14,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:14,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:30:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:30:14,203 INFO L87 Difference]: Start difference. First operand 1327 states and 1765 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 01:30:14,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:14,867 INFO L93 Difference]: Finished difference Result 2510 states and 3426 transitions. [2022-01-10 01:30:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:30:14,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-10 01:30:14,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:14,873 INFO L225 Difference]: With dead ends: 2510 [2022-01-10 01:30:14,873 INFO L226 Difference]: Without dead ends: 1697 [2022-01-10 01:30:14,874 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 01:30:14,875 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 4270 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4270 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:14,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4270 Valid, 820 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:30:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2022-01-10 01:30:14,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1687. [2022-01-10 01:30:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1681 states have (on average 1.3652587745389648) internal successors, (2295), 1686 states have internal predecessors, (2295), 0 states have call successors, (0), 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 01:30:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2295 transitions. [2022-01-10 01:30:14,925 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2295 transitions. Word has length 51 [2022-01-10 01:30:14,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:14,926 INFO L470 AbstractCegarLoop]: Abstraction has 1687 states and 2295 transitions. [2022-01-10 01:30:14,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 01:30:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2295 transitions. [2022-01-10 01:30:14,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 01:30:14,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:14,928 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] [2022-01-10 01:30:14,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:30:14,928 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:14,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:14,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1084504014, now seen corresponding path program 1 times [2022-01-10 01:30:14,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:14,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922188213] [2022-01-10 01:30:14,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:14,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:14,975 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 01:30:14,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:14,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922188213] [2022-01-10 01:30:14,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922188213] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:14,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:14,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:30:14,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37641516] [2022-01-10 01:30:14,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:14,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:30:14,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:14,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:30:14,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:30:14,977 INFO L87 Difference]: Start difference. First operand 1687 states and 2295 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 01:30:15,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:15,671 INFO L93 Difference]: Finished difference Result 3362 states and 4642 transitions. [2022-01-10 01:30:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:30:15,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-10 01:30:15,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:15,678 INFO L225 Difference]: With dead ends: 3362 [2022-01-10 01:30:15,678 INFO L226 Difference]: Without dead ends: 2476 [2022-01-10 01:30:15,681 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 01:30:15,682 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 3806 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3806 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:15,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3806 Valid, 776 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:30:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2022-01-10 01:30:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2470. [2022-01-10 01:30:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.364448051948052) internal successors, (3362), 2469 states have internal predecessors, (3362), 0 states have call successors, (0), 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 01:30:15,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3362 transitions. [2022-01-10 01:30:15,761 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3362 transitions. Word has length 51 [2022-01-10 01:30:15,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:15,761 INFO L470 AbstractCegarLoop]: Abstraction has 2470 states and 3362 transitions. [2022-01-10 01:30:15,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 01:30:15,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3362 transitions. [2022-01-10 01:30:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 01:30:15,763 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:15,763 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] [2022-01-10 01:30:15,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:30:15,764 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:15,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:15,764 INFO L85 PathProgramCache]: Analyzing trace with hash -614217846, now seen corresponding path program 1 times [2022-01-10 01:30:15,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:15,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807196187] [2022-01-10 01:30:15,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:15,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:15,917 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 01:30:15,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:15,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807196187] [2022-01-10 01:30:15,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807196187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:15,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:15,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:30:15,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127377308] [2022-01-10 01:30:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:15,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:30:15,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:30:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:30:15,921 INFO L87 Difference]: Start difference. First operand 2470 states and 3362 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 01:30:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:17,622 INFO L93 Difference]: Finished difference Result 5298 states and 7527 transitions. [2022-01-10 01:30:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 01:30:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 01:30:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:17,637 INFO L225 Difference]: With dead ends: 5298 [2022-01-10 01:30:17,638 INFO L226 Difference]: Without dead ends: 5293 [2022-01-10 01:30:17,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-01-10 01:30:17,640 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 3937 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 2917 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3937 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 3023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 2917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:17,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3937 Valid, 3082 Invalid, 3023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 2917 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 01:30:17,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5293 states. [2022-01-10 01:30:17,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5293 to 2470. [2022-01-10 01:30:17,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3640422077922079) internal successors, (3361), 2469 states have internal predecessors, (3361), 0 states have call successors, (0), 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 01:30:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3361 transitions. [2022-01-10 01:30:17,784 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3361 transitions. Word has length 52 [2022-01-10 01:30:17,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:17,785 INFO L470 AbstractCegarLoop]: Abstraction has 2470 states and 3361 transitions. [2022-01-10 01:30:17,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 01:30:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3361 transitions. [2022-01-10 01:30:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 01:30:17,788 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:17,788 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] [2022-01-10 01:30:17,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:30:17,788 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:17,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:17,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1085905725, now seen corresponding path program 1 times [2022-01-10 01:30:17,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:17,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791366907] [2022-01-10 01:30:17,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:17,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:17,927 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 01:30:17,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:17,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791366907] [2022-01-10 01:30:17,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791366907] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:17,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:17,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:30:17,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065838393] [2022-01-10 01:30:17,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:17,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:30:17,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:17,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:30:17,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:30:17,929 INFO L87 Difference]: Start difference. First operand 2470 states and 3361 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 01:30:19,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:19,715 INFO L93 Difference]: Finished difference Result 5694 states and 8151 transitions. [2022-01-10 01:30:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 01:30:19,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 01:30:19,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:19,730 INFO L225 Difference]: With dead ends: 5694 [2022-01-10 01:30:19,730 INFO L226 Difference]: Without dead ends: 5187 [2022-01-10 01:30:19,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-01-10 01:30:19,733 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 4055 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4055 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:19,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4055 Valid, 3219 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 2972 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 01:30:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5187 states. [2022-01-10 01:30:19,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5187 to 2470. [2022-01-10 01:30:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3636363636363635) internal successors, (3360), 2469 states have internal predecessors, (3360), 0 states have call successors, (0), 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 01:30:19,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3360 transitions. [2022-01-10 01:30:19,900 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3360 transitions. Word has length 52 [2022-01-10 01:30:19,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:19,900 INFO L470 AbstractCegarLoop]: Abstraction has 2470 states and 3360 transitions. [2022-01-10 01:30:19,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 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 01:30:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3360 transitions. [2022-01-10 01:30:19,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 01:30:19,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:19,911 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] [2022-01-10 01:30:19,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:30:19,912 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:19,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash -592999742, now seen corresponding path program 1 times [2022-01-10 01:30:19,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:19,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448418710] [2022-01-10 01:30:19,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:19,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:19,983 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 01:30:19,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:19,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448418710] [2022-01-10 01:30:19,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448418710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:19,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:19,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:30:19,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235710298] [2022-01-10 01:30:19,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:19,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:30:19,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:19,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:30:19,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:30:19,985 INFO L87 Difference]: Start difference. First operand 2470 states and 3360 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 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 01:30:21,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:21,027 INFO L93 Difference]: Finished difference Result 4398 states and 6210 transitions. [2022-01-10 01:30:21,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 01:30:21,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 01:30:21,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:21,038 INFO L225 Difference]: With dead ends: 4398 [2022-01-10 01:30:21,039 INFO L226 Difference]: Without dead ends: 3751 [2022-01-10 01:30:21,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-01-10 01:30:21,043 INFO L933 BasicCegarLoop]: 550 mSDtfsCounter, 5559 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5559 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:21,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5559 Valid, 1796 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:30:21,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3751 states. [2022-01-10 01:30:21,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3751 to 2470. [2022-01-10 01:30:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2464 states have (on average 1.3632305194805194) internal successors, (3359), 2469 states have internal predecessors, (3359), 0 states have call successors, (0), 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 01:30:21,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3359 transitions. [2022-01-10 01:30:21,219 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3359 transitions. Word has length 52 [2022-01-10 01:30:21,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:21,219 INFO L470 AbstractCegarLoop]: Abstraction has 2470 states and 3359 transitions. [2022-01-10 01:30:21,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 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 01:30:21,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3359 transitions. [2022-01-10 01:30:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 01:30:21,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:21,222 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] [2022-01-10 01:30:21,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:30:21,223 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:21,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2034797542, now seen corresponding path program 1 times [2022-01-10 01:30:21,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:21,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595275687] [2022-01-10 01:30:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:21,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:21,276 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 01:30:21,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:21,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595275687] [2022-01-10 01:30:21,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595275687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:21,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:21,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:30:21,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730619344] [2022-01-10 01:30:21,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:21,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:30:21,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:21,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:30:21,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:30:21,281 INFO L87 Difference]: Start difference. First operand 2470 states and 3359 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 01:30:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:21,514 INFO L93 Difference]: Finished difference Result 3558 states and 4984 transitions. [2022-01-10 01:30:21,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:30:21,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-10 01:30:21,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:21,520 INFO L225 Difference]: With dead ends: 3558 [2022-01-10 01:30:21,520 INFO L226 Difference]: Without dead ends: 2241 [2022-01-10 01:30:21,522 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 01:30:21,522 INFO L933 BasicCegarLoop]: 954 mSDtfsCounter, 622 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:21,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 1291 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:30:21,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-01-10 01:30:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2239. [2022-01-10 01:30:21,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2233 states have (on average 1.353784146887595) internal successors, (3023), 2238 states have internal predecessors, (3023), 0 states have call successors, (0), 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 01:30:21,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 3023 transitions. [2022-01-10 01:30:21,678 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 3023 transitions. Word has length 53 [2022-01-10 01:30:21,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:21,678 INFO L470 AbstractCegarLoop]: Abstraction has 2239 states and 3023 transitions. [2022-01-10 01:30:21,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 01:30:21,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 3023 transitions. [2022-01-10 01:30:21,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 01:30:21,680 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:21,680 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] [2022-01-10 01:30:21,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:30:21,681 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:21,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:21,681 INFO L85 PathProgramCache]: Analyzing trace with hash -512099954, now seen corresponding path program 1 times [2022-01-10 01:30:21,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:21,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916438254] [2022-01-10 01:30:21,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:21,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:21,711 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 01:30:21,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:21,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916438254] [2022-01-10 01:30:21,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916438254] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:21,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:21,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:30:21,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465292587] [2022-01-10 01:30:21,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:21,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:30:21,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:21,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:30:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:30:21,712 INFO L87 Difference]: Start difference. First operand 2239 states and 3023 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 01:30:21,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:21,897 INFO L93 Difference]: Finished difference Result 3804 states and 5441 transitions. [2022-01-10 01:30:21,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:30:21,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-10 01:30:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:21,904 INFO L225 Difference]: With dead ends: 3804 [2022-01-10 01:30:21,904 INFO L226 Difference]: Without dead ends: 2763 [2022-01-10 01:30:21,906 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 01:30:21,906 INFO L933 BasicCegarLoop]: 909 mSDtfsCounter, 457 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:21,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 1386 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:21,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2022-01-10 01:30:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2761. [2022-01-10 01:30:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2755 states have (on average 1.3978221415607985) internal successors, (3851), 2760 states have internal predecessors, (3851), 0 states have call successors, (0), 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 01:30:22,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 3851 transitions. [2022-01-10 01:30:22,095 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 3851 transitions. Word has length 53 [2022-01-10 01:30:22,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:22,095 INFO L470 AbstractCegarLoop]: Abstraction has 2761 states and 3851 transitions. [2022-01-10 01:30:22,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 01:30:22,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 3851 transitions. [2022-01-10 01:30:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 01:30:22,097 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:22,097 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] [2022-01-10 01:30:22,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:30:22,098 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:22,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:22,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1062086298, now seen corresponding path program 1 times [2022-01-10 01:30:22,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:22,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365905611] [2022-01-10 01:30:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:22,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:22,131 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 01:30:22,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:22,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365905611] [2022-01-10 01:30:22,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365905611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:22,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:22,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:30:22,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920006638] [2022-01-10 01:30:22,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:22,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:30:22,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:22,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:30:22,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:30:22,134 INFO L87 Difference]: Start difference. First operand 2761 states and 3851 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 01:30:22,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:22,421 INFO L93 Difference]: Finished difference Result 5591 states and 8154 transitions. [2022-01-10 01:30:22,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:30:22,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-10 01:30:22,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:22,431 INFO L225 Difference]: With dead ends: 5591 [2022-01-10 01:30:22,431 INFO L226 Difference]: Without dead ends: 3827 [2022-01-10 01:30:22,433 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 01:30:22,433 INFO L933 BasicCegarLoop]: 912 mSDtfsCounter, 434 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:22,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1400 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2022-01-10 01:30:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 3825. [2022-01-10 01:30:22,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3825 states, 3819 states have (on average 1.422623723487824) internal successors, (5433), 3824 states have internal predecessors, (5433), 0 states have call successors, (0), 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 01:30:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 5433 transitions. [2022-01-10 01:30:22,694 INFO L78 Accepts]: Start accepts. Automaton has 3825 states and 5433 transitions. Word has length 53 [2022-01-10 01:30:22,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:22,695 INFO L470 AbstractCegarLoop]: Abstraction has 3825 states and 5433 transitions. [2022-01-10 01:30:22,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 01:30:22,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3825 states and 5433 transitions. [2022-01-10 01:30:22,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 01:30:22,696 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:22,696 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] [2022-01-10 01:30:22,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:30:22,697 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:22,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:22,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1383066013, now seen corresponding path program 1 times [2022-01-10 01:30:22,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:22,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208823416] [2022-01-10 01:30:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:22,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:22,725 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 01:30:22,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:22,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208823416] [2022-01-10 01:30:22,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208823416] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:22,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:22,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:30:22,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140492285] [2022-01-10 01:30:22,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:22,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:30:22,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:22,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:30:22,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:30:22,727 INFO L87 Difference]: Start difference. First operand 3825 states and 5433 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 01:30:23,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:23,124 INFO L93 Difference]: Finished difference Result 7514 states and 10894 transitions. [2022-01-10 01:30:23,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:30:23,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-10 01:30:23,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:23,141 INFO L225 Difference]: With dead ends: 7514 [2022-01-10 01:30:23,141 INFO L226 Difference]: Without dead ends: 4238 [2022-01-10 01:30:23,146 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 01:30:23,147 INFO L933 BasicCegarLoop]: 697 mSDtfsCounter, 645 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:23,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 974 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:23,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2022-01-10 01:30:23,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 3413. [2022-01-10 01:30:23,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 3408 states have (on average 1.4360328638497653) internal successors, (4894), 3412 states have internal predecessors, (4894), 0 states have call successors, (0), 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 01:30:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 4894 transitions. [2022-01-10 01:30:23,480 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 4894 transitions. Word has length 54 [2022-01-10 01:30:23,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:23,480 INFO L470 AbstractCegarLoop]: Abstraction has 3413 states and 4894 transitions. [2022-01-10 01:30:23,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 01:30:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 4894 transitions. [2022-01-10 01:30:23,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 01:30:23,482 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:23,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:30:23,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 01:30:23,482 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:23,483 INFO L85 PathProgramCache]: Analyzing trace with hash -111097732, now seen corresponding path program 1 times [2022-01-10 01:30:23,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:23,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775855367] [2022-01-10 01:30:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:23,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:23,538 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 01:30:23,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:23,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775855367] [2022-01-10 01:30:23,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775855367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:23,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:23,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:30:23,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467852627] [2022-01-10 01:30:23,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:23,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:30:23,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:23,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:30:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:30:23,540 INFO L87 Difference]: Start difference. First operand 3413 states and 4894 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 01:30:23,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:23,930 INFO L93 Difference]: Finished difference Result 6968 states and 10156 transitions. [2022-01-10 01:30:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:30:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-10 01:30:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:23,936 INFO L225 Difference]: With dead ends: 6968 [2022-01-10 01:30:23,936 INFO L226 Difference]: Without dead ends: 3921 [2022-01-10 01:30:23,939 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 01:30:23,939 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 523 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:23,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 737 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:30:23,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2022-01-10 01:30:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3157. [2022-01-10 01:30:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 3153 states have (on average 1.4487789406914051) internal successors, (4568), 3156 states have internal predecessors, (4568), 0 states have call successors, (0), 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 01:30:24,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 4568 transitions. [2022-01-10 01:30:24,184 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 4568 transitions. Word has length 54 [2022-01-10 01:30:24,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:24,185 INFO L470 AbstractCegarLoop]: Abstraction has 3157 states and 4568 transitions. [2022-01-10 01:30:24,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 01:30:24,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 4568 transitions. [2022-01-10 01:30:24,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 01:30:24,186 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:24,186 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] [2022-01-10 01:30:24,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 01:30:24,186 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:24,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:24,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1920628919, now seen corresponding path program 1 times [2022-01-10 01:30:24,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:24,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256848659] [2022-01-10 01:30:24,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:24,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:24,430 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 01:30:24,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:24,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256848659] [2022-01-10 01:30:24,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256848659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:24,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:24,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:30:24,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751514910] [2022-01-10 01:30:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:24,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-10 01:30:24,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:24,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-10 01:30:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-01-10 01:30:24,431 INFO L87 Difference]: Start difference. First operand 3157 states and 4568 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 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 01:30:25,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:25,968 INFO L93 Difference]: Finished difference Result 6885 states and 9991 transitions. [2022-01-10 01:30:25,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-10 01:30:25,969 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-10 01:30:25,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:25,979 INFO L225 Difference]: With dead ends: 6885 [2022-01-10 01:30:25,979 INFO L226 Difference]: Without dead ends: 6789 [2022-01-10 01:30:25,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2022-01-10 01:30:25,981 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 3302 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 3351 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:25,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3302 Valid, 3351 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:30:25,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2022-01-10 01:30:26,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 3110. [2022-01-10 01:30:26,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3108 states have (on average 1.4507722007722008) internal successors, (4509), 3109 states have internal predecessors, (4509), 0 states have call successors, (0), 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 01:30:26,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 4509 transitions. [2022-01-10 01:30:26,409 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 4509 transitions. Word has length 55 [2022-01-10 01:30:26,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:26,409 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 4509 transitions. [2022-01-10 01:30:26,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 11 states have internal predecessors, (55), 0 states have call successors, (0), 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 01:30:26,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 4509 transitions. [2022-01-10 01:30:26,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 01:30:26,410 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:26,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:30:26,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 01:30:26,410 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:26,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:26,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1431726049, now seen corresponding path program 1 times [2022-01-10 01:30:26,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:26,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833001820] [2022-01-10 01:30:26,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:26,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:26,843 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 01:30:26,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:26,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833001820] [2022-01-10 01:30:26,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833001820] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:26,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:26,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-01-10 01:30:26,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132496204] [2022-01-10 01:30:26,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:26,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-10 01:30:26,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:26,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-10 01:30:26,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-01-10 01:30:26,845 INFO L87 Difference]: Start difference. First operand 3110 states and 4509 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 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 01:30:29,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:29,581 INFO L93 Difference]: Finished difference Result 5365 states and 7757 transitions. [2022-01-10 01:30:29,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-10 01:30:29,582 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-10 01:30:29,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:29,614 INFO L225 Difference]: With dead ends: 5365 [2022-01-10 01:30:29,615 INFO L226 Difference]: Without dead ends: 5361 [2022-01-10 01:30:29,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2022-01-10 01:30:29,616 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 4676 mSDsluCounter, 6569 mSDsCounter, 0 mSdLazyCounter, 2904 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4676 SdHoareTripleChecker+Valid, 7186 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:29,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4676 Valid, 7186 Invalid, 3004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2904 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 01:30:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5361 states. [2022-01-10 01:30:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5361 to 3122. [2022-01-10 01:30:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3120 states have (on average 1.4506410256410256) internal successors, (4526), 3121 states have internal predecessors, (4526), 0 states have call successors, (0), 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 01:30:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 4526 transitions. [2022-01-10 01:30:29,995 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 4526 transitions. Word has length 55 [2022-01-10 01:30:29,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:29,995 INFO L470 AbstractCegarLoop]: Abstraction has 3122 states and 4526 transitions. [2022-01-10 01:30:29,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 19 states have internal predecessors, (55), 0 states have call successors, (0), 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 01:30:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 4526 transitions. [2022-01-10 01:30:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 01:30:29,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:29,996 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] [2022-01-10 01:30:29,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 01:30:29,997 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:29,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:29,997 INFO L85 PathProgramCache]: Analyzing trace with hash -434174057, now seen corresponding path program 1 times [2022-01-10 01:30:29,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:29,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715794780] [2022-01-10 01:30:29,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:29,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:30,316 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 01:30:30,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:30,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715794780] [2022-01-10 01:30:30,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715794780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:30,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:30,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-01-10 01:30:30,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393896629] [2022-01-10 01:30:30,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:30,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 01:30:30,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:30,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 01:30:30,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-01-10 01:30:30,318 INFO L87 Difference]: Start difference. First operand 3122 states and 4526 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 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 01:30:32,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:32,473 INFO L93 Difference]: Finished difference Result 5532 states and 7987 transitions. [2022-01-10 01:30:32,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-10 01:30:32,474 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-01-10 01:30:32,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:32,481 INFO L225 Difference]: With dead ends: 5532 [2022-01-10 01:30:32,481 INFO L226 Difference]: Without dead ends: 5455 [2022-01-10 01:30:32,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2022-01-10 01:30:32,483 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 4003 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4003 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:32,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4003 Valid, 5034 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:30:32,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5455 states. [2022-01-10 01:30:32,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5455 to 3113. [2022-01-10 01:30:32,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 1.4505141388174807) internal successors, (4514), 3112 states have internal predecessors, (4514), 0 states have call successors, (0), 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 01:30:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 4514 transitions. [2022-01-10 01:30:32,990 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 4514 transitions. Word has length 56 [2022-01-10 01:30:32,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:32,990 INFO L470 AbstractCegarLoop]: Abstraction has 3113 states and 4514 transitions. [2022-01-10 01:30:32,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 0 states have call successors, (0), 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 01:30:32,991 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 4514 transitions. [2022-01-10 01:30:33,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 01:30:33,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:33,010 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 01:30:33,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 01:30:33,010 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:33,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:33,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1827161320, now seen corresponding path program 1 times [2022-01-10 01:30:33,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:33,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743953311] [2022-01-10 01:30:33,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:33,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:33,048 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 01:30:33,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:33,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743953311] [2022-01-10 01:30:33,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743953311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:33,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:33,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 01:30:33,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909800301] [2022-01-10 01:30:33,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:33,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:30:33,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:33,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:30:33,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:30:33,049 INFO L87 Difference]: Start difference. First operand 3113 states and 4514 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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 01:30:34,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:34,188 INFO L93 Difference]: Finished difference Result 9877 states and 14618 transitions. [2022-01-10 01:30:34,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:30:34,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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 01:30:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:34,197 INFO L225 Difference]: With dead ends: 9877 [2022-01-10 01:30:34,198 INFO L226 Difference]: Without dead ends: 7251 [2022-01-10 01:30:34,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 01:30:34,201 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 1456 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 978 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:34,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1456 Valid, 978 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7251 states. [2022-01-10 01:30:35,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7251 to 5459. [2022-01-10 01:30:35,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 1.4474166361304508) internal successors, (7900), 5458 states have internal predecessors, (7900), 0 states have call successors, (0), 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 01:30:35,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 7900 transitions. [2022-01-10 01:30:35,060 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 7900 transitions. Word has length 60 [2022-01-10 01:30:35,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:35,061 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 7900 transitions. [2022-01-10 01:30:35,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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 01:30:35,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 7900 transitions. [2022-01-10 01:30:35,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 01:30:35,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:35,062 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 01:30:35,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 01:30:35,063 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:35,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:35,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1073283694, now seen corresponding path program 1 times [2022-01-10 01:30:35,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:35,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932780299] [2022-01-10 01:30:35,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:35,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:35,124 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 01:30:35,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:35,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932780299] [2022-01-10 01:30:35,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932780299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:35,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:35,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 01:30:35,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216797932] [2022-01-10 01:30:35,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:35,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:30:35,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:35,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:30:35,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:30:35,127 INFO L87 Difference]: Start difference. First operand 5459 states and 7900 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 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 01:30:35,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:35,857 INFO L93 Difference]: Finished difference Result 8607 states and 12493 transitions. [2022-01-10 01:30:35,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:30:35,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 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 01:30:35,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:35,861 INFO L225 Difference]: With dead ends: 8607 [2022-01-10 01:30:35,861 INFO L226 Difference]: Without dead ends: 3605 [2022-01-10 01:30:35,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:30:35,865 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 745 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:35,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [745 Valid, 782 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-01-10 01:30:36,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3601. [2022-01-10 01:30:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 3600 states have (on average 1.4219444444444445) internal successors, (5119), 3600 states have internal predecessors, (5119), 0 states have call successors, (0), 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 01:30:36,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5119 transitions. [2022-01-10 01:30:36,568 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5119 transitions. Word has length 61 [2022-01-10 01:30:36,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:36,568 INFO L470 AbstractCegarLoop]: Abstraction has 3601 states and 5119 transitions. [2022-01-10 01:30:36,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 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 01:30:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5119 transitions. [2022-01-10 01:30:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 01:30:36,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:36,570 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 01:30:36,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 01:30:36,570 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:36,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:36,570 INFO L85 PathProgramCache]: Analyzing trace with hash 778828119, now seen corresponding path program 1 times [2022-01-10 01:30:36,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:36,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337756041] [2022-01-10 01:30:36,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:36,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:36,597 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 01:30:36,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:36,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337756041] [2022-01-10 01:30:36,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337756041] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:36,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:36,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:30:36,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387771259] [2022-01-10 01:30:36,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:36,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:30:36,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:36,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:30:36,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:30:36,599 INFO L87 Difference]: Start difference. First operand 3601 states and 5119 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 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 01:30:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:37,818 INFO L93 Difference]: Finished difference Result 9575 states and 13793 transitions. [2022-01-10 01:30:37,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:30:37,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 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 01:30:37,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:37,827 INFO L225 Difference]: With dead ends: 9575 [2022-01-10 01:30:37,827 INFO L226 Difference]: Without dead ends: 6431 [2022-01-10 01:30:37,830 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 01:30:37,831 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 241 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:37,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 766 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6431 states. [2022-01-10 01:30:39,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6431 to 6013. [2022-01-10 01:30:39,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 6012 states have (on average 1.4273120425815036) internal successors, (8581), 6012 states have internal predecessors, (8581), 0 states have call successors, (0), 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 01:30:39,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 8581 transitions. [2022-01-10 01:30:39,081 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 8581 transitions. Word has length 61 [2022-01-10 01:30:39,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:39,081 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 8581 transitions. [2022-01-10 01:30:39,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 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 01:30:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 8581 transitions. [2022-01-10 01:30:39,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 01:30:39,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:39,082 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 01:30:39,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 01:30:39,082 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:39,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:39,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1461952547, now seen corresponding path program 1 times [2022-01-10 01:30:39,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:39,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619420678] [2022-01-10 01:30:39,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:39,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:39,139 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 01:30:39,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:39,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619420678] [2022-01-10 01:30:39,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619420678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:39,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:39,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:30:39,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126150140] [2022-01-10 01:30:39,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:39,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 01:30:39,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:39,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 01:30:39,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 01:30:39,141 INFO L87 Difference]: Start difference. First operand 6013 states and 8581 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 01:30:41,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:41,800 INFO L93 Difference]: Finished difference Result 12672 states and 17893 transitions. [2022-01-10 01:30:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 01:30:41,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 01:30:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:41,814 INFO L225 Difference]: With dead ends: 12672 [2022-01-10 01:30:41,814 INFO L226 Difference]: Without dead ends: 12670 [2022-01-10 01:30:41,816 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 01:30:41,816 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 560 mSDsluCounter, 1615 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:41,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 2140 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:41,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12670 states. [2022-01-10 01:30:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12670 to 6457. [2022-01-10 01:30:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6457 states, 6456 states have (on average 1.3979244114002478) internal successors, (9025), 6456 states have internal predecessors, (9025), 0 states have call successors, (0), 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 01:30:43,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6457 states to 6457 states and 9025 transitions. [2022-01-10 01:30:43,216 INFO L78 Accepts]: Start accepts. Automaton has 6457 states and 9025 transitions. Word has length 64 [2022-01-10 01:30:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:43,217 INFO L470 AbstractCegarLoop]: Abstraction has 6457 states and 9025 transitions. [2022-01-10 01:30:43,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 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 01:30:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6457 states and 9025 transitions. [2022-01-10 01:30:43,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-10 01:30:43,218 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:43,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:30:43,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 01:30:43,218 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:43,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:43,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1754067009, now seen corresponding path program 1 times [2022-01-10 01:30:43,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:43,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666275851] [2022-01-10 01:30:43,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:43,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:43,245 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 01:30:43,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:43,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666275851] [2022-01-10 01:30:43,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666275851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:43,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:43,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:30:43,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561093226] [2022-01-10 01:30:43,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:43,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:30:43,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:43,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:30:43,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:30:43,246 INFO L87 Difference]: Start difference. First operand 6457 states and 9025 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 01:30:45,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:45,770 INFO L93 Difference]: Finished difference Result 17249 states and 24281 transitions. [2022-01-10 01:30:45,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:30:45,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-10 01:30:45,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:45,783 INFO L225 Difference]: With dead ends: 17249 [2022-01-10 01:30:45,783 INFO L226 Difference]: Without dead ends: 11237 [2022-01-10 01:30:45,788 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 01:30:45,789 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 263 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:45,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 694 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:45,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11237 states. [2022-01-10 01:30:48,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11237 to 11087. [2022-01-10 01:30:48,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11087 states, 11086 states have (on average 1.381832942449937) internal successors, (15319), 11086 states have internal predecessors, (15319), 0 states have call successors, (0), 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 01:30:48,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11087 states to 11087 states and 15319 transitions. [2022-01-10 01:30:48,211 INFO L78 Accepts]: Start accepts. Automaton has 11087 states and 15319 transitions. Word has length 65 [2022-01-10 01:30:48,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:48,211 INFO L470 AbstractCegarLoop]: Abstraction has 11087 states and 15319 transitions. [2022-01-10 01:30:48,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 01:30:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 11087 states and 15319 transitions. [2022-01-10 01:30:48,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-10 01:30:48,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:48,213 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 01:30:48,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 01:30:48,213 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:48,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:48,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1595040439, now seen corresponding path program 1 times [2022-01-10 01:30:48,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:48,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159036128] [2022-01-10 01:30:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:48,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:48,249 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 01:30:48,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:48,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159036128] [2022-01-10 01:30:48,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159036128] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:48,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:48,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 01:30:48,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157016018] [2022-01-10 01:30:48,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:48,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:30:48,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:48,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:30:48,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:30:48,250 INFO L87 Difference]: Start difference. First operand 11087 states and 15319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 01:30:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:51,883 INFO L93 Difference]: Finished difference Result 19431 states and 26963 transitions. [2022-01-10 01:30:51,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:30:51,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 01:30:51,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:51,904 INFO L225 Difference]: With dead ends: 19431 [2022-01-10 01:30:51,904 INFO L226 Difference]: Without dead ends: 15977 [2022-01-10 01:30:51,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:30:51,913 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 962 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:51,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 1205 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:51,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15977 states. [2022-01-10 01:30:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15977 to 13874. [2022-01-10 01:30:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13874 states, 13873 states have (on average 1.3785050097311324) internal successors, (19124), 13873 states have internal predecessors, (19124), 0 states have call successors, (0), 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 01:30:55,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13874 states to 13874 states and 19124 transitions. [2022-01-10 01:30:55,176 INFO L78 Accepts]: Start accepts. Automaton has 13874 states and 19124 transitions. Word has length 66 [2022-01-10 01:30:55,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:30:55,176 INFO L470 AbstractCegarLoop]: Abstraction has 13874 states and 19124 transitions. [2022-01-10 01:30:55,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 01:30:55,177 INFO L276 IsEmpty]: Start isEmpty. Operand 13874 states and 19124 transitions. [2022-01-10 01:30:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-10 01:30:55,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:30:55,178 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 01:30:55,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 01:30:55,179 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:30:55,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:30:55,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1924581840, now seen corresponding path program 1 times [2022-01-10 01:30:55,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:30:55,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506269489] [2022-01-10 01:30:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:30:55,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:30:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:30:55,208 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 01:30:55,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:30:55,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506269489] [2022-01-10 01:30:55,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506269489] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:30:55,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:30:55,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:30:55,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697956038] [2022-01-10 01:30:55,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:30:55,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:30:55,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:30:55,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:30:55,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:30:55,210 INFO L87 Difference]: Start difference. First operand 13874 states and 19124 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 01:30:57,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:30:57,660 INFO L93 Difference]: Finished difference Result 16736 states and 23010 transitions. [2022-01-10 01:30:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:30:57,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 01:30:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:30:57,672 INFO L225 Difference]: With dead ends: 16736 [2022-01-10 01:30:57,673 INFO L226 Difference]: Without dead ends: 11000 [2022-01-10 01:30:57,679 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 01:30:57,679 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 175 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:30:57,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 828 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:30:57,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11000 states. [2022-01-10 01:31:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11000 to 10929. [2022-01-10 01:31:00,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10929 states, 10928 states have (on average 1.353770131771596) internal successors, (14794), 10928 states have internal predecessors, (14794), 0 states have call successors, (0), 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 01:31:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10929 states to 10929 states and 14794 transitions. [2022-01-10 01:31:00,143 INFO L78 Accepts]: Start accepts. Automaton has 10929 states and 14794 transitions. Word has length 67 [2022-01-10 01:31:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:31:00,143 INFO L470 AbstractCegarLoop]: Abstraction has 10929 states and 14794 transitions. [2022-01-10 01:31:00,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 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 01:31:00,144 INFO L276 IsEmpty]: Start isEmpty. Operand 10929 states and 14794 transitions. [2022-01-10 01:31:00,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 01:31:00,145 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:31:00,145 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 01:31:00,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 01:31:00,146 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:31:00,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:31:00,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1353553607, now seen corresponding path program 1 times [2022-01-10 01:31:00,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:31:00,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726286903] [2022-01-10 01:31:00,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:31:00,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:31:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:31:00,184 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 01:31:00,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:31:00,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726286903] [2022-01-10 01:31:00,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726286903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:31:00,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:31:00,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 01:31:00,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399198698] [2022-01-10 01:31:00,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:31:00,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:31:00,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:31:00,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:31:00,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:31:00,186 INFO L87 Difference]: Start difference. First operand 10929 states and 14794 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 01:31:03,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:31:03,214 INFO L93 Difference]: Finished difference Result 15778 states and 21511 transitions. [2022-01-10 01:31:03,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:31:03,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 01:31:03,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:31:03,232 INFO L225 Difference]: With dead ends: 15778 [2022-01-10 01:31:03,233 INFO L226 Difference]: Without dead ends: 13360 [2022-01-10 01:31:03,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:31:03,241 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 953 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:31:03,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 1116 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:31:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13360 states. [2022-01-10 01:31:06,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13360 to 12698. [2022-01-10 01:31:06,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12698 states, 12697 states have (on average 1.3533118059384106) internal successors, (17183), 12697 states have internal predecessors, (17183), 0 states have call successors, (0), 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 01:31:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12698 states to 12698 states and 17183 transitions. [2022-01-10 01:31:06,194 INFO L78 Accepts]: Start accepts. Automaton has 12698 states and 17183 transitions. Word has length 69 [2022-01-10 01:31:06,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:31:06,194 INFO L470 AbstractCegarLoop]: Abstraction has 12698 states and 17183 transitions. [2022-01-10 01:31:06,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 01:31:06,195 INFO L276 IsEmpty]: Start isEmpty. Operand 12698 states and 17183 transitions. [2022-01-10 01:31:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 01:31:06,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:31:06,196 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 01:31:06,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 01:31:06,197 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 01:31:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:31:06,198 INFO L85 PathProgramCache]: Analyzing trace with hash -537948960, now seen corresponding path program 1 times [2022-01-10 01:31:06,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:31:06,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169623331] [2022-01-10 01:31:06,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:31:06,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:31:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:31:06,318 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 01:31:06,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:31:06,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169623331] [2022-01-10 01:31:06,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169623331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:31:06,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:31:06,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 01:31:06,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006876716] [2022-01-10 01:31:06,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:31:06,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:31:06,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:31:06,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:31:06,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:31:06,320 INFO L87 Difference]: Start difference. First operand 12698 states and 17183 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 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 01:31:14,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:31:14,609 INFO L93 Difference]: Finished difference Result 38804 states and 52467 transitions. [2022-01-10 01:31:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 01:31:14,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 6 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 01:31:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:31:14,663 INFO L225 Difference]: With dead ends: 38804 [2022-01-10 01:31:14,663 INFO L226 Difference]: Without dead ends: 31210 [2022-01-10 01:31:14,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-10 01:31:14,676 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 2397 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:31:14,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2397 Valid, 685 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:31:14,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31210 states.