/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:50:08,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:50:08,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:50:08,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:50:08,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:50:08,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:50:08,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:50:08,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:50:08,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:50:08,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:50:08,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:50:08,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:50:08,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:50:08,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:50:08,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:50:08,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:50:08,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:50:08,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:50:08,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:50:08,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:50:08,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:50:08,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:50:08,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:50:08,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:50:08,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:50:08,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:50:08,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:50:08,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:50:08,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:50:08,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:50:08,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:50:08,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:50:08,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:50:08,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:50:08,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:50:08,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:50:08,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:50:08,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:50:08,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:50:08,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:50:08,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:50:08,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:50:08,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:50:08,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:50:08,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:50:08,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:50:08,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:50:08,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:50:08,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:50:08,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:50:08,957 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:50:08,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:50:08,958 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:50:08,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:50:08,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:50:08,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:50:08,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:50:08,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:50:08,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:50:08,959 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:50:08,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:50:08,959 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:50:08,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:50:08,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:50:08,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:50:08,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:50:08,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:50:08,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:50:08,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:50:08,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:50:08,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:50:08,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:50:08,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:50:08,962 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:50:08,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:50:08,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:50:09,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:50:09,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:50:09,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:50:09,239 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:50:09,239 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:50:09,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c [2022-09-16 10:50:09,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47e50edec/f2ac025f4c824824b745bd08c36a6c47/FLAGee5c81cd1 [2022-09-16 10:50:09,701 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:50:09,702 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c [2022-09-16 10:50:09,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47e50edec/f2ac025f4c824824b745bd08c36a6c47/FLAGee5c81cd1 [2022-09-16 10:50:10,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47e50edec/f2ac025f4c824824b745bd08c36a6c47 [2022-09-16 10:50:10,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:50:10,102 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:50:10,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:50:10,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:50:10,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:50:10,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a08ec77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10, skipping insertion in model container [2022-09-16 10:50:10,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:50:10,135 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:50:10,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c[2817,2830] [2022-09-16 10:50:10,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:50:10,315 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:50:10,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-trans.wvr.c[2817,2830] [2022-09-16 10:50:10,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:50:10,348 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:50:10,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10 WrapperNode [2022-09-16 10:50:10,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:50:10,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:50:10,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:50:10,350 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:50:10,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,394 INFO L138 Inliner]: procedures = 23, calls = 30, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 259 [2022-09-16 10:50:10,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:50:10,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:50:10,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:50:10,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:50:10,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:50:10,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:50:10,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:50:10,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:50:10,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (1/1) ... [2022-09-16 10:50:10,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:50:10,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:50:10,460 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) [2022-09-16 10:50:10,464 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 [2022-09-16 10:50:10,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:50:10,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:50:10,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:50:10,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:50:10,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:50:10,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:50:10,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:50:10,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:50:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:50:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:50:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:50:10,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:50:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:50:10,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:50:10,495 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:50:10,578 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:50:10,580 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:50:10,969 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:50:10,980 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:50:10,980 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:50:10,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:50:10 BoogieIcfgContainer [2022-09-16 10:50:10,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:50:10,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:50:10,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:50:10,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:50:10,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:50:10" (1/3) ... [2022-09-16 10:50:10,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10170788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:50:10, skipping insertion in model container [2022-09-16 10:50:10,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:50:10" (2/3) ... [2022-09-16 10:50:10,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10170788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:50:10, skipping insertion in model container [2022-09-16 10:50:10,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:50:10" (3/3) ... [2022-09-16 10:50:10,990 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2022-09-16 10:50:10,996 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:50:11,010 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:50:11,010 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-09-16 10:50:11,010 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:50:11,164 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 10:50:11,206 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 322 places, 343 transitions, 710 flow [2022-09-16 10:50:52,920 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1504572 states, 1504230 states have (on average 4.077003516749433) internal successors, (6132751), 1504571 states have internal predecessors, (6132751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:52,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:50:52,962 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c602c23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:50:52,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-09-16 10:50:55,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 1504572 states, 1504230 states have (on average 4.077003516749433) internal successors, (6132751), 1504571 states have internal predecessors, (6132751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 10:50:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-09-16 10:50:55,782 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:50:55,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 10:50:55,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-09-16 10:50:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:50:55,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1506761005, now seen corresponding path program 1 times [2022-09-16 10:50:55,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:50:55,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59143492] [2022-09-16 10:50:55,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:50:55,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:51:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:51:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:51:01,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:51:01,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59143492] [2022-09-16 10:51:01,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59143492] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:51:01,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:51:01,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:51:01,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083711729] [2022-09-16 10:51:01,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:51:01,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:51:01,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:51:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:51:01,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:51:05,073 INFO L87 Difference]: Start difference. First operand has 1504572 states, 1504230 states have (on average 4.077003516749433) internal successors, (6132751), 1504571 states have internal predecessors, (6132751), 0 states have call successors, (0), 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 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)