/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_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:27:39,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:27:39,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:27:39,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:27:39,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:27:39,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:27:39,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:27:39,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:27:39,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:27:39,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:27:39,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:27:39,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-01-10 01:27:39,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:27:39,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:27:39,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:27:39,423 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 01:27:39,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:27:39,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:27:39,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:27:39,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:27:39,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:27:39,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:27:39,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:27:39,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:27:39,451 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:27:39,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:27:39,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:27:39,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:27:39,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:27:39,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:27:39,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:27:39,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:27:39,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:27:39,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:27:39,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:27:39,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:27:39,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:27:39,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:27:39,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:27:39,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:27:39,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:27:39,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:27:39,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:27:39,455 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:27:39,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:27:39,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:27:39,455 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:27:39,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:27:39,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:27:39,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:27:39,684 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:27:39,686 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:27:39,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-01-10 01:27:39,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac0e56b30/45a6fa4409f94d7494666b16d081e288/FLAG7b66e30b4 [2022-01-10 01:27:40,292 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:27:40,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-01-10 01:27:40,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac0e56b30/45a6fa4409f94d7494666b16d081e288/FLAG7b66e30b4 [2022-01-10 01:27:40,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac0e56b30/45a6fa4409f94d7494666b16d081e288 [2022-01-10 01:27:40,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:27:40,535 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:27:40,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:27:40,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:27:40,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:27:40,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:27:40" (1/1) ... [2022-01-10 01:27:40,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdefe29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:40, skipping insertion in model container [2022-01-10 01:27:40,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:27:40" (1/1) ... [2022-01-10 01:27:40,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:27:40,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:27:41,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31682,31695] [2022-01-10 01:27:41,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32572,32585] [2022-01-10 01:27:41,109 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34231,34244] [2022-01-10 01:27:41,128 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35121,35134] [2022-01-10 01:27:41,172 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_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37552,37565] [2022-01-10 01:27:41,187 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[38445,38458] [2022-01-10 01:27:41,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[40107,40120] [2022-01-10 01:27:41,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41468,41481] [2022-01-10 01:27:41,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[55332,55345] [2022-01-10 01:27:41,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[56225,56238] [2022-01-10 01:27:41,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57887,57900] [2022-01-10 01:27:41,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62044,62057] [2022-01-10 01:27:41,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:27:41,545 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:27:41,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31682,31695] [2022-01-10 01:27:41,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32572,32585] [2022-01-10 01:27:41,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[34231,34244] [2022-01-10 01:27:41,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35121,35134] [2022-01-10 01:27:41,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[37552,37565] [2022-01-10 01:27:41,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[38445,38458] [2022-01-10 01:27:41,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[40107,40120] [2022-01-10 01:27:41,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[41468,41481] [2022-01-10 01:27:42,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[55332,55345] [2022-01-10 01:27:42,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[56225,56238] [2022-01-10 01:27:42,094 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57887,57900] [2022-01-10 01:27:42,130 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62044,62057] [2022-01-10 01:27:42,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:27:42,229 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:27:42,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42 WrapperNode [2022-01-10 01:27:42,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:27:42,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:27:42,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:27:42,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:27:42,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,366 INFO L137 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3808 [2022-01-10 01:27:42,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:27:42,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:27:42,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:27:42,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:27:42,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:27:42,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:27:42,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:27:42,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:27:42,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (1/1) ... [2022-01-10 01:27:42,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:27:42,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:27:42,533 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 01:27:42,545 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 01:27:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:27:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:27:42,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:27:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:27:42,761 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:27:42,762 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:27:44,704 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:27:44,737 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:27:44,738 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:27:44,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:27:44 BoogieIcfgContainer [2022-01-10 01:27:44,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:27:44,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:27:44,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:27:44,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:27:44,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:27:40" (1/3) ... [2022-01-10 01:27:44,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ed735f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:27:44, skipping insertion in model container [2022-01-10 01:27:44,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:27:42" (2/3) ... [2022-01-10 01:27:44,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ed735f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:27:44, skipping insertion in model container [2022-01-10 01:27:44,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:27:44" (3/3) ... [2022-01-10 01:27:44,771 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2022-01-10 01:27:44,776 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:27:44,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-01-10 01:27:44,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:27:44,859 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 01:27:44,859 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-01-10 01:27:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 905 states, 892 states have (on average 1.8307174887892377) internal successors, (1633), 904 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-01-10 01:27:44,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:27:44,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:44,953 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:27:44,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:27:44,960 INFO L85 PathProgramCache]: Analyzing trace with hash 313892332, now seen corresponding path program 1 times [2022-01-10 01:27:44,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:27:44,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894370847] [2022-01-10 01:27:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:27:44,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:27:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:27:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:27:45,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:27:45,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894370847] [2022-01-10 01:27:45,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894370847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:27:45,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:27:45,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:27:45,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431608447] [2022-01-10 01:27:45,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:27:45,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:27:45,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:27:45,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:27:45,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:27:45,711 INFO L87 Difference]: Start difference. First operand has 905 states, 892 states have (on average 1.8307174887892377) internal successors, (1633), 904 states have internal predecessors, (1633), 0 states have call successors, (0), 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 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:45,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:27:45,982 INFO L93 Difference]: Finished difference Result 1560 states and 2794 transitions. [2022-01-10 01:27:45,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:27:45,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 298 [2022-01-10 01:27:45,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:27:46,015 INFO L225 Difference]: With dead ends: 1560 [2022-01-10 01:27:46,016 INFO L226 Difference]: Without dead ends: 1306 [2022-01-10 01:27:46,020 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 01:27:46,027 INFO L933 BasicCegarLoop]: 1771 mSDtfsCounter, 857 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:27:46,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [857 Valid, 2955 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:27:46,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2022-01-10 01:27:46,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1304. [2022-01-10 01:27:46,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 1292 states have (on average 1.5472136222910218) internal successors, (1999), 1303 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:46,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1999 transitions. [2022-01-10 01:27:46,143 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1999 transitions. Word has length 298 [2022-01-10 01:27:46,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:27:46,144 INFO L470 AbstractCegarLoop]: Abstraction has 1304 states and 1999 transitions. [2022-01-10 01:27:46,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:46,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1999 transitions. [2022-01-10 01:27:46,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-01-10 01:27:46,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:27:46,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:46,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:27:46,151 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:27:46,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:27:46,152 INFO L85 PathProgramCache]: Analyzing trace with hash 489895204, now seen corresponding path program 1 times [2022-01-10 01:27:46,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:27:46,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872354345] [2022-01-10 01:27:46,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:27:46,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:27:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:27:46,333 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 01:27:46,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:27:46,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872354345] [2022-01-10 01:27:46,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872354345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:27:46,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:27:46,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:27:46,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914898845] [2022-01-10 01:27:46,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:27:46,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:27:46,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:27:46,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:27:46,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:27:46,338 INFO L87 Difference]: Start difference. First operand 1304 states and 1999 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:46,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:27:46,586 INFO L93 Difference]: Finished difference Result 2483 states and 3850 transitions. [2022-01-10 01:27:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:27:46,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 298 [2022-01-10 01:27:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:27:46,599 INFO L225 Difference]: With dead ends: 2483 [2022-01-10 01:27:46,599 INFO L226 Difference]: Without dead ends: 2130 [2022-01-10 01:27:46,604 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 01:27:46,607 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 711 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:27:46,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 2532 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:27:46,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2022-01-10 01:27:46,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2128. [2022-01-10 01:27:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2116 states have (on average 1.54820415879017) internal successors, (3276), 2127 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:46,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3276 transitions. [2022-01-10 01:27:46,716 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3276 transitions. Word has length 298 [2022-01-10 01:27:46,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:27:46,718 INFO L470 AbstractCegarLoop]: Abstraction has 2128 states and 3276 transitions. [2022-01-10 01:27:46,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3276 transitions. [2022-01-10 01:27:46,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-01-10 01:27:46,726 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:27:46,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:46,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:27:46,726 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:27:46,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:27:46,727 INFO L85 PathProgramCache]: Analyzing trace with hash -804247836, now seen corresponding path program 1 times [2022-01-10 01:27:46,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:27:46,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300283599] [2022-01-10 01:27:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:27:46,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:27:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:27:46,902 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 01:27:46,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:27:46,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300283599] [2022-01-10 01:27:46,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300283599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:27:46,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:27:46,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:27:46,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034953138] [2022-01-10 01:27:46,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:27:46,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:27:46,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:27:46,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:27:46,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:27:46,905 INFO L87 Difference]: Start difference. First operand 2128 states and 3276 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:47,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:27:47,211 INFO L93 Difference]: Finished difference Result 4387 states and 6841 transitions. [2022-01-10 01:27:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:27:47,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 298 [2022-01-10 01:27:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:27:47,229 INFO L225 Difference]: With dead ends: 4387 [2022-01-10 01:27:47,229 INFO L226 Difference]: Without dead ends: 3818 [2022-01-10 01:27:47,233 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 01:27:47,235 INFO L933 BasicCegarLoop]: 1482 mSDtfsCounter, 753 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:27:47,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [753 Valid, 2523 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 01:27:47,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2022-01-10 01:27:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3816. [2022-01-10 01:27:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3816 states, 3804 states have (on average 1.5499474237644584) internal successors, (5896), 3815 states have internal predecessors, (5896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:47,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 5896 transitions. [2022-01-10 01:27:47,447 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 5896 transitions. Word has length 298 [2022-01-10 01:27:47,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:27:47,447 INFO L470 AbstractCegarLoop]: Abstraction has 3816 states and 5896 transitions. [2022-01-10 01:27:47,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:47,448 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 5896 transitions. [2022-01-10 01:27:47,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-01-10 01:27:47,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:27:47,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:47,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:27:47,458 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:27:47,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:27:47,459 INFO L85 PathProgramCache]: Analyzing trace with hash -804678812, now seen corresponding path program 1 times [2022-01-10 01:27:47,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:27:47,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623653674] [2022-01-10 01:27:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:27:47,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:27:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:27:47,878 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 01:27:47,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:27:47,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623653674] [2022-01-10 01:27:47,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623653674] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:27:47,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:27:47,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:27:47,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674187666] [2022-01-10 01:27:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:27:47,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 01:27:47,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:27:47,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 01:27:47,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 01:27:47,886 INFO L87 Difference]: Start difference. First operand 3816 states and 5896 transitions. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:48,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:27:48,419 INFO L93 Difference]: Finished difference Result 11293 states and 17433 transitions. [2022-01-10 01:27:48,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 01:27:48,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 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 298 [2022-01-10 01:27:48,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:27:48,452 INFO L225 Difference]: With dead ends: 11293 [2022-01-10 01:27:48,452 INFO L226 Difference]: Without dead ends: 7488 [2022-01-10 01:27:48,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:27:48,463 INFO L933 BasicCegarLoop]: 2358 mSDtfsCounter, 2915 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2915 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:27:48,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2915 Valid, 3663 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:27:48,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2022-01-10 01:27:48,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7312. [2022-01-10 01:27:48,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7312 states, 7300 states have (on average 1.5410958904109588) internal successors, (11250), 7311 states have internal predecessors, (11250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:49,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 11250 transitions. [2022-01-10 01:27:49,000 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 11250 transitions. Word has length 298 [2022-01-10 01:27:49,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:27:49,001 INFO L470 AbstractCegarLoop]: Abstraction has 7312 states and 11250 transitions. [2022-01-10 01:27:49,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 11250 transitions. [2022-01-10 01:27:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-01-10 01:27:49,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:27:49,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:49,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:27:49,020 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:27:49,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:27:49,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1657568652, now seen corresponding path program 1 times [2022-01-10 01:27:49,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:27:49,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325430402] [2022-01-10 01:27:49,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:27:49,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:27:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:27:49,150 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 01:27:49,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:27:49,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325430402] [2022-01-10 01:27:49,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325430402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:27:49,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:27:49,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:27:49,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924223439] [2022-01-10 01:27:49,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:27:49,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:27:49,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:27:49,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:27:49,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:27:49,153 INFO L87 Difference]: Start difference. First operand 7312 states and 11250 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:27:50,145 INFO L93 Difference]: Finished difference Result 21532 states and 33072 transitions. [2022-01-10 01:27:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:27:50,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 300 [2022-01-10 01:27:50,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:27:50,220 INFO L225 Difference]: With dead ends: 21532 [2022-01-10 01:27:50,223 INFO L226 Difference]: Without dead ends: 14345 [2022-01-10 01:27:50,241 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 01:27:50,242 INFO L933 BasicCegarLoop]: 2622 mSDtfsCounter, 1236 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:27:50,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 3937 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:27:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14345 states. [2022-01-10 01:27:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14345 to 14169. [2022-01-10 01:27:51,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14169 states, 14157 states have (on average 1.5314685314685315) internal successors, (21681), 14168 states have internal predecessors, (21681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14169 states to 14169 states and 21681 transitions. [2022-01-10 01:27:51,294 INFO L78 Accepts]: Start accepts. Automaton has 14169 states and 21681 transitions. Word has length 300 [2022-01-10 01:27:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:27:51,294 INFO L470 AbstractCegarLoop]: Abstraction has 14169 states and 21681 transitions. [2022-01-10 01:27:51,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 14169 states and 21681 transitions. [2022-01-10 01:27:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-01-10 01:27:51,319 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:27:51,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:51,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:27:51,319 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:27:51,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:27:51,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1963409337, now seen corresponding path program 1 times [2022-01-10 01:27:51,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:27:51,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550702255] [2022-01-10 01:27:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:27:51,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:27:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:27:51,380 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 01:27:51,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:27:51,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550702255] [2022-01-10 01:27:51,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550702255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:27:51,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:27:51,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:27:51,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514401678] [2022-01-10 01:27:51,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:27:51,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:27:51,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:27:51,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:27:51,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:27:51,382 INFO L87 Difference]: Start difference. First operand 14169 states and 21681 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:53,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:27:53,163 INFO L93 Difference]: Finished difference Result 42440 states and 64927 transitions. [2022-01-10 01:27:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:27:53,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 300 [2022-01-10 01:27:53,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:27:53,247 INFO L225 Difference]: With dead ends: 42440 [2022-01-10 01:27:53,248 INFO L226 Difference]: Without dead ends: 28309 [2022-01-10 01:27:53,278 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 01:27:53,280 INFO L933 BasicCegarLoop]: 2728 mSDtfsCounter, 1361 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:27:53,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1361 Valid, 4090 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:27:53,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28309 states. [2022-01-10 01:27:54,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28309 to 14188. [2022-01-10 01:27:54,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14188 states, 14176 states have (on average 1.5313910835214446) internal successors, (21709), 14187 states have internal predecessors, (21709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:54,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14188 states to 14188 states and 21709 transitions. [2022-01-10 01:27:54,351 INFO L78 Accepts]: Start accepts. Automaton has 14188 states and 21709 transitions. Word has length 300 [2022-01-10 01:27:54,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:27:54,351 INFO L470 AbstractCegarLoop]: Abstraction has 14188 states and 21709 transitions. [2022-01-10 01:27:54,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 14188 states and 21709 transitions. [2022-01-10 01:27:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-01-10 01:27:54,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:27:54,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:54,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:27:54,376 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:27:54,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:27:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1162460916, now seen corresponding path program 1 times [2022-01-10 01:27:54,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:27:54,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648254003] [2022-01-10 01:27:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:27:54,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:27:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:27:54,439 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 01:27:54,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:27:54,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648254003] [2022-01-10 01:27:54,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648254003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:27:54,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:27:54,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:27:54,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078995429] [2022-01-10 01:27:54,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:27:54,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:27:54,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:27:54,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:27:54,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:27:54,441 INFO L87 Difference]: Start difference. First operand 14188 states and 21709 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:56,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:27:56,023 INFO L93 Difference]: Finished difference Result 42459 states and 64948 transitions. [2022-01-10 01:27:56,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:27:56,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 301 [2022-01-10 01:27:56,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:27:56,101 INFO L225 Difference]: With dead ends: 42459 [2022-01-10 01:27:56,102 INFO L226 Difference]: Without dead ends: 28327 [2022-01-10 01:27:56,129 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 01:27:56,130 INFO L933 BasicCegarLoop]: 2728 mSDtfsCounter, 1356 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 4090 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:27:56,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1356 Valid, 4090 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:27:56,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28327 states. [2022-01-10 01:27:57,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28327 to 14206. [2022-01-10 01:27:57,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14206 states, 14194 states have (on average 1.5309285613639565) internal successors, (21730), 14205 states have internal predecessors, (21730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14206 states to 14206 states and 21730 transitions. [2022-01-10 01:27:57,219 INFO L78 Accepts]: Start accepts. Automaton has 14206 states and 21730 transitions. Word has length 301 [2022-01-10 01:27:57,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:27:57,219 INFO L470 AbstractCegarLoop]: Abstraction has 14206 states and 21730 transitions. [2022-01-10 01:27:57,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:57,219 INFO L276 IsEmpty]: Start isEmpty. Operand 14206 states and 21730 transitions. [2022-01-10 01:27:57,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-01-10 01:27:57,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:27:57,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:57,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:27:57,247 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:27:57,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:27:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1689931791, now seen corresponding path program 1 times [2022-01-10 01:27:57,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:27:57,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666654410] [2022-01-10 01:27:57,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:27:57,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:27:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:27:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:27:57,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:27:57,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666654410] [2022-01-10 01:27:57,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666654410] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:27:57,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:27:57,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:27:57,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237039342] [2022-01-10 01:27:57,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:27:57,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:27:57,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:27:57,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:27:57,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:27:57,349 INFO L87 Difference]: Start difference. First operand 14206 states and 21730 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:27:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:27:59,190 INFO L93 Difference]: Finished difference Result 40191 states and 61339 transitions. [2022-01-10 01:27:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:27:59,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 302 [2022-01-10 01:27:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:27:59,252 INFO L225 Difference]: With dead ends: 40191 [2022-01-10 01:27:59,253 INFO L226 Difference]: Without dead ends: 26226 [2022-01-10 01:27:59,280 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 01:27:59,280 INFO L933 BasicCegarLoop]: 2673 mSDtfsCounter, 1230 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:27:59,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1230 Valid, 3988 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:27:59,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26226 states. [2022-01-10 01:28:00,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26226 to 26050. [2022-01-10 01:28:00,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26050 states, 26038 states have (on average 1.5183961901835779) internal successors, (39536), 26049 states have internal predecessors, (39536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:28:01,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26050 states to 26050 states and 39536 transitions. [2022-01-10 01:28:01,105 INFO L78 Accepts]: Start accepts. Automaton has 26050 states and 39536 transitions. Word has length 302 [2022-01-10 01:28:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:28:01,105 INFO L470 AbstractCegarLoop]: Abstraction has 26050 states and 39536 transitions. [2022-01-10 01:28:01,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:28:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 26050 states and 39536 transitions. [2022-01-10 01:28:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-01-10 01:28:01,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:28:01,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:01,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:28:01,138 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:28:01,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:28:01,139 INFO L85 PathProgramCache]: Analyzing trace with hash 554074796, now seen corresponding path program 1 times [2022-01-10 01:28:01,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:28:01,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450743008] [2022-01-10 01:28:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:28:01,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:28:01,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:28:01,429 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 01:28:01,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:28:01,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450743008] [2022-01-10 01:28:01,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450743008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:28:01,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:28:01,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 01:28:01,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623758006] [2022-01-10 01:28:01,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:28:01,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:28:01,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:28:01,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:28:01,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:28:01,432 INFO L87 Difference]: Start difference. First operand 26050 states and 39536 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:28:05,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:28:05,246 INFO L93 Difference]: Finished difference Result 76819 states and 116431 transitions. [2022-01-10 01:28:05,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 01:28:05,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 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 302 [2022-01-10 01:28:05,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:28:05,350 INFO L225 Difference]: With dead ends: 76819 [2022-01-10 01:28:05,351 INFO L226 Difference]: Without dead ends: 50824 [2022-01-10 01:28:05,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:28:05,384 INFO L933 BasicCegarLoop]: 2290 mSDtfsCounter, 4291 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4291 SdHoareTripleChecker+Valid, 3587 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:28:05,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4291 Valid, 3587 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:28:05,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50824 states. [2022-01-10 01:28:08,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50824 to 50668. [2022-01-10 01:28:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50668 states, 50656 states have (on average 1.50653427037271) internal successors, (76315), 50667 states have internal predecessors, (76315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:28:09,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50668 states to 50668 states and 76315 transitions. [2022-01-10 01:28:09,089 INFO L78 Accepts]: Start accepts. Automaton has 50668 states and 76315 transitions. Word has length 302 [2022-01-10 01:28:09,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:28:09,090 INFO L470 AbstractCegarLoop]: Abstraction has 50668 states and 76315 transitions. [2022-01-10 01:28:09,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:28:09,090 INFO L276 IsEmpty]: Start isEmpty. Operand 50668 states and 76315 transitions. [2022-01-10 01:28:09,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-01-10 01:28:09,140 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:28:09,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:09,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:28:09,141 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:28:09,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:28:09,142 INFO L85 PathProgramCache]: Analyzing trace with hash 507447066, now seen corresponding path program 1 times [2022-01-10 01:28:09,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:28:09,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090366842] [2022-01-10 01:28:09,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:28:09,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:28:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:28:09,428 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 01:28:09,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:28:09,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090366842] [2022-01-10 01:28:09,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090366842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:28:09,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:28:09,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:28:09,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531937170] [2022-01-10 01:28:09,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:28:09,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 01:28:09,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:28:09,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 01:28:09,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 01:28:09,431 INFO L87 Difference]: Start difference. First operand 50668 states and 76315 transitions. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:28:16,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:28:16,405 INFO L93 Difference]: Finished difference Result 149738 states and 225309 transitions. [2022-01-10 01:28:16,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 01:28:16,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2022-01-10 01:28:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:28:16,613 INFO L225 Difference]: With dead ends: 149738 [2022-01-10 01:28:16,613 INFO L226 Difference]: Without dead ends: 99267 [2022-01-10 01:28:16,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:28:16,678 INFO L933 BasicCegarLoop]: 2341 mSDtfsCounter, 2862 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2862 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:28:16,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2862 Valid, 3650 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 01:28:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99267 states. [2022-01-10 01:28:24,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99267 to 99075. [2022-01-10 01:28:24,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99075 states, 99063 states have (on average 1.4962902395445323) internal successors, (148227), 99074 states have internal predecessors, (148227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:28:24,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99075 states to 99075 states and 148227 transitions. [2022-01-10 01:28:24,655 INFO L78 Accepts]: Start accepts. Automaton has 99075 states and 148227 transitions. Word has length 304 [2022-01-10 01:28:24,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:28:24,656 INFO L470 AbstractCegarLoop]: Abstraction has 99075 states and 148227 transitions. [2022-01-10 01:28:24,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:28:24,656 INFO L276 IsEmpty]: Start isEmpty. Operand 99075 states and 148227 transitions. [2022-01-10 01:28:24,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-01-10 01:28:24,777 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:28:24,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:24,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 01:28:24,778 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-10 01:28:24,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:28:24,778 INFO L85 PathProgramCache]: Analyzing trace with hash 264038566, now seen corresponding path program 1 times [2022-01-10 01:28:24,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:28:24,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476929414] [2022-01-10 01:28:24,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:28:24,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:28:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:28:24,835 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 01:28:24,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:28:24,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476929414] [2022-01-10 01:28:24,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476929414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:28:24,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:28:24,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:28:24,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768254535] [2022-01-10 01:28:24,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:28:24,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:28:24,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:28:24,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:28:24,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:28:24,837 INFO L87 Difference]: Start difference. First operand 99075 states and 148227 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)