/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/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:20:38,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:20:38,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:20:38,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:20:38,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:20:38,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:20:38,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:20:38,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:20:38,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:20:38,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:20:38,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:20:38,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:20:38,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:20:38,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:20:38,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:20:38,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:20:38,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:20:38,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:20:38,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:20:38,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:20:38,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:20:38,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:20:38,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:20:38,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:20:38,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 06:20:38,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 06:20:38,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 06:20:38,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 06:20:38,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 06:20:38,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 06:20:38,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 06:20:38,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 06:20:38,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 06:20:38,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 06:20:38,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 06:20:38,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 06:20:38,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 06:20:38,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 06:20:38,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:20:38,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:20:38,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:20:38,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 06:20:38,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:20:38,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:20:38,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:20:38,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:20:38,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:20:38,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:20:38,990 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:20:38,991 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:20:38,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:20:38,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:20:38,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:20:38,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:20:38,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:20:38,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:20:38,991 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:20:38,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:20:38,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:20:38,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:20:38,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:20:38,992 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:20:38,992 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:20:38,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:20:38,992 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:20:38,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:20:38,993 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:20:38,993 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:20:39,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:20:39,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:20:39,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:20:39,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:20:39,218 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:20:39,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-1.c [2022-01-11 06:20:39,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3da17f112/e45f4e76afc746fb90ef507e33df10a9/FLAGbf25b5eb1 [2022-01-11 06:20:39,777 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:20:39,777 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.1.M1-1.c [2022-01-11 06:20:39,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3da17f112/e45f4e76afc746fb90ef507e33df10a9/FLAGbf25b5eb1 [2022-01-11 06:20:40,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3da17f112/e45f4e76afc746fb90ef507e33df10a9 [2022-01-11 06:20:40,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:20:40,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:20:40,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:20:40,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:20:40,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:20:40,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:40,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f422954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40, skipping insertion in model container [2022-01-11 06:20:40,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:40,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:20:40,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:20:40,403 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/rekcba_nxt.1.M1-1.c[1674,1687] [2022-01-11 06:20:40,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:20:40,658 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:20:40,667 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/rekcba_nxt.1.M1-1.c[1674,1687] [2022-01-11 06:20:40,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:20:40,885 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:20:40,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40 WrapperNode [2022-01-11 06:20:40,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:20:40,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:20:40,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:20:40,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:20:40,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:40,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,204 INFO L137 Inliner]: procedures = 60, calls = 1828, calls flagged for inlining = 419, calls inlined = 1905, statements flattened = 22446 [2022-01-11 06:20:41,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:20:41,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:20:41,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:20:41,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:20:41,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:20:41,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:20:41,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:20:41,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:20:41,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (1/1) ... [2022-01-11 06:20:41,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:20:41,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:20:41,980 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) [2022-01-11 06:20:42,012 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 [2022-01-11 06:20:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:20:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-01-11 06:20:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-11 06:20:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-11 06:20:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-01-11 06:20:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-11 06:20:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-11 06:20:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:20:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:20:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:20:42,431 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:20:42,432 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:21:08,430 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:21:08,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:21:08,470 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2022-01-11 06:21:08,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:21:08 BoogieIcfgContainer [2022-01-11 06:21:08,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:21:08,477 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:21:08,477 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:21:08,478 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:21:08,480 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:21:08" (1/1) ... [2022-01-11 06:21:09,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:21:09 BasicIcfg [2022-01-11 06:21:09,968 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:21:09,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:21:09,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:21:09,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:21:09,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:20:40" (1/4) ... [2022-01-11 06:21:09,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39911f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:21:09, skipping insertion in model container [2022-01-11 06:21:09,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:20:40" (2/4) ... [2022-01-11 06:21:09,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39911f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:21:09, skipping insertion in model container [2022-01-11 06:21:09,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:21:08" (3/4) ... [2022-01-11 06:21:09,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39911f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:21:09, skipping insertion in model container [2022-01-11 06:21:09,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:21:09" (4/4) ... [2022-01-11 06:21:09,975 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-1.cTransformedIcfg [2022-01-11 06:21:09,979 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:21:09,979 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-11 06:21:10,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:21:10,042 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 [2022-01-11 06:21:10,042 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-11 06:21:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 5174 states, 5172 states have (on average 1.5230085073472543) internal successors, (7877), 5173 states have internal predecessors, (7877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:21:10,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-01-11 06:21:10,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:21:10,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:21:10,338 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 06:21:10,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:21:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash 8636581, now seen corresponding path program 1 times [2022-01-11 06:21:10,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:21:10,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32957880] [2022-01-11 06:21:10,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:21:10,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms