/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-simpl-str-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:52:46,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:52:46,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:52:46,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:52:46,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:52:46,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:52:46,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:52:46,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:52:46,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:52:46,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:52:46,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:52:46,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:52:46,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:52:46,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:52:46,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:52:46,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:52:46,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:52:46,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:52:46,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:52:46,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:52:46,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:52:46,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:52:46,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:52:46,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:52:46,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:52:46,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:52:46,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:52:46,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:52:46,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:52:46,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:52:46,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:52:46,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:52:46,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:52:46,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:52:46,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:52:46,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:52:46,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:52:46,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:52:46,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:52:46,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:52:46,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:52:46,976 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 10:52:47,002 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:52:47,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:52:47,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:52:47,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:52:47,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:52:47,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:52:47,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:52:47,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:52:47,005 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:52:47,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:52:47,005 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:52:47,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:52:47,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:52:47,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:52:47,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:52:47,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:52:47,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:52:47,006 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:52:47,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:52:47,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:52:47,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:52:47,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:52:47,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:52:47,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:52:47,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:52:47,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:52:47,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:52:47,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:52:47,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:52:47,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:52:47,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:52:47,008 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:52:47,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:52:47,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:52:47,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:52:47,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:52:47,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:52:47,247 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:52:47,247 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:52:47,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2022-09-16 10:52:47,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31813fa56/6ce4fb6184664bad8149f3163f3163ed/FLAG900af4926 [2022-09-16 10:52:47,678 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:52:47,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2022-09-16 10:52:47,686 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31813fa56/6ce4fb6184664bad8149f3163f3163ed/FLAG900af4926 [2022-09-16 10:52:47,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31813fa56/6ce4fb6184664bad8149f3163f3163ed [2022-09-16 10:52:47,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:52:47,700 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:52:47,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:52:47,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:52:47,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:52:47,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:47,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b27d081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47, skipping insertion in model container [2022-09-16 10:52:47,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:47,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:52:47,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:52:47,927 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-simpl-str-trans.wvr.c[2514,2527] [2022-09-16 10:52:47,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:52:47,942 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:52:47,976 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-simpl-str-trans.wvr.c[2514,2527] [2022-09-16 10:52:47,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:52:47,986 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:52:47,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47 WrapperNode [2022-09-16 10:52:47,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:52:47,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:52:47,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:52:47,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:52:47,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,034 INFO L138 Inliner]: procedures = 23, calls = 30, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 217 [2022-09-16 10:52:48,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:52:48,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:52:48,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:52:48,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:52:48,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:52:48,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:52:48,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:52:48,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:52:48,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (1/1) ... [2022-09-16 10:52:48,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:52:48,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:52:48,096 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 10:52:48,097 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 10:52:48,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:52:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:52:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:52:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:52:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:52:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:52:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:52:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:52:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:52:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:52:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:52:48,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:52:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:52:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:52:48,125 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 10:52:48,199 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:52:48,200 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:52:48,518 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:52:48,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:52:48,527 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 10:52:48,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:52:48 BoogieIcfgContainer [2022-09-16 10:52:48,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:52:48,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:52:48,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:52:48,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:52:48,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:52:47" (1/3) ... [2022-09-16 10:52:48,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307d0e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:52:48, skipping insertion in model container [2022-09-16 10:52:48,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:52:47" (2/3) ... [2022-09-16 10:52:48,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@307d0e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:52:48, skipping insertion in model container [2022-09-16 10:52:48,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:52:48" (3/3) ... [2022-09-16 10:52:48,535 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2022-09-16 10:52:48,547 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:52:48,553 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:52:48,553 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-09-16 10:52:48,554 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:52:48,664 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 10:52:48,687 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 280 places, 292 transitions, 608 flow [2022-09-16 10:53:10,315 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 913432 states, 913090 states have (on average 4.009774501965852) internal successors, (3661285), 913431 states have internal predecessors, (3661285), 0 states have call successors, (0), 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 10:53:10,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:53:10,369 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;@5adca6ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:53:10,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-09-16 10:53:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 913432 states, 913090 states have (on average 4.009774501965852) internal successors, (3661285), 913431 states have internal predecessors, (3661285), 0 states have call successors, (0), 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 10:53:12,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-09-16 10:53:12,148 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:53:12,149 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] [2022-09-16 10:53:12,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-09-16 10:53:12,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:53:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash 118465793, now seen corresponding path program 1 times [2022-09-16 10:53:12,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:53:12,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041675663] [2022-09-16 10:53:12,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:53:12,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:53:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:53:12,396 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 10:53:12,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:53:12,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041675663] [2022-09-16 10:53:12,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041675663] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:53:12,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:53:12,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 10:53:12,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879630373] [2022-09-16 10:53:12,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:53:12,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 10:53:12,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:53:12,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 10:53:12,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-16 10:53:17,071 INFO L87 Difference]: Start difference. First operand has 913432 states, 913090 states have (on average 4.009774501965852) internal successors, (3661285), 913431 states have internal predecessors, (3661285), 0 states have call successors, (0), 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 11.4) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 10:53:35,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:53:35,626 INFO L93 Difference]: Finished difference Result 1032690 states and 4005941 transitions. [2022-09-16 10:53:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 10:53:35,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-09-16 10:53:35,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:53:55,399 INFO L225 Difference]: With dead ends: 1032690 [2022-09-16 10:53:55,399 INFO L226 Difference]: Without dead ends: 1019710 [2022-09-16 10:53:55,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-09-16 10:53:55,417 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 631 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-09-16 10:53:55,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 1634 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-09-16 10:54:00,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019710 states.