./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 14:24:45,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:24:45,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:24:45,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:24:45,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:24:45,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:24:45,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:24:45,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:24:45,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:24:45,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:24:45,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:24:45,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:24:45,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:24:45,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:24:45,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:24:45,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:24:45,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:24:45,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:24:45,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:24:45,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:24:45,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:24:45,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:24:45,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:24:45,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:24:45,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:24:45,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:24:45,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:24:45,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:24:45,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:24:45,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:24:45,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:24:45,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:24:45,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:24:45,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:24:45,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:24:45,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:24:45,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:24:45,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:24:45,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:24:45,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:24:45,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:24:45,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:24:45,238 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:24:45,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:24:45,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:24:45,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:24:45,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:24:45,241 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:24:45,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:24:45,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:24:45,242 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:24:45,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:24:45,243 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:24:45,243 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:24:45,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:24:45,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:24:45,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:24:45,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:24:45,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:24:45,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:24:45,244 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:24:45,245 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:24:45,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:24:45,245 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:24:45,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:24:45,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:24:45,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:24:45,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:24:45,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:24:45,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:24:45,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:24:45,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:24:45,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:24:45,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:24:45,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:24:45,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:24:45,248 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:24:45,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:24:45,248 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:24:45,248 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:24:45,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:24:45,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:24:45,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:24:45,558 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:24:45,558 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:24:45,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2023-08-30 14:24:46,807 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:24:47,129 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:24:47,134 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i [2023-08-30 14:24:47,161 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4192a55f6/7b036103ac8b4e51b6638535cb9e25c7/FLAG1615532e7 [2023-08-30 14:24:47,178 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4192a55f6/7b036103ac8b4e51b6638535cb9e25c7 [2023-08-30 14:24:47,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:24:47,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:24:47,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:24:47,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:24:47,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:24:47,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290c5403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47, skipping insertion in model container [2023-08-30 14:24:47,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:24:47,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:24:47,620 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2023-08-30 14:24:47,680 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:24:47,711 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:24:47,753 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_83-list2_racing1.i[47038,47051] [2023-08-30 14:24:47,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:24:47,859 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:24:47,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47 WrapperNode [2023-08-30 14:24:47,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:24:47,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:24:47,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:24:47,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:24:47,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,951 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 364 [2023-08-30 14:24:47,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:24:47,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:24:47,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:24:47,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:24:47,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:47,996 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:48,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:48,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:24:48,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:24:48,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:24:48,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:24:48,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (1/1) ... [2023-08-30 14:24:48,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:24:48,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:24:48,049 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) [2023-08-30 14:24:48,062 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 [2023-08-30 14:24:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:24:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 14:24:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-30 14:24:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-30 14:24:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:24:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:24:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-30 14:24:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-30 14:24:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:24:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 14:24:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 14:24:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:24:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 14:24:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-30 14:24:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-30 14:24:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:24:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:24:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:24:48,090 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 14:24:48,320 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:24:48,322 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:24:48,783 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:24:48,791 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:24:48,792 INFO L302 CfgBuilder]: Removed 28 assume(true) statements. [2023-08-30 14:24:48,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:24:48 BoogieIcfgContainer [2023-08-30 14:24:48,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:24:48,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:24:48,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:24:48,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:24:48,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:24:47" (1/3) ... [2023-08-30 14:24:48,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14170df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:24:48, skipping insertion in model container [2023-08-30 14:24:48,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:24:47" (2/3) ... [2023-08-30 14:24:48,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14170df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:24:48, skipping insertion in model container [2023-08-30 14:24:48,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:24:48" (3/3) ... [2023-08-30 14:24:48,801 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2023-08-30 14:24:48,808 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:24:48,817 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:24:48,817 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-30 14:24:48,817 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:24:48,929 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-30 14:24:48,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 388 transitions, 818 flow [2023-08-30 14:24:49,374 INFO L130 PetriNetUnfolder]: 164/1225 cut-off events. [2023-08-30 14:24:49,374 INFO L131 PetriNetUnfolder]: For 36/57 co-relation queries the response was YES. [2023-08-30 14:24:49,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1225 events. 164/1225 cut-off events. For 36/57 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7898 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 626. Up to 16 conditions per place. [2023-08-30 14:24:49,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 350 places, 388 transitions, 818 flow [2023-08-30 14:24:49,423 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 388 transitions, 818 flow [2023-08-30 14:24:49,426 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:24:49,441 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 350 places, 388 transitions, 818 flow [2023-08-30 14:24:49,447 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 350 places, 388 transitions, 818 flow [2023-08-30 14:24:49,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 350 places, 388 transitions, 818 flow [2023-08-30 14:24:49,725 INFO L130 PetriNetUnfolder]: 164/1225 cut-off events. [2023-08-30 14:24:49,725 INFO L131 PetriNetUnfolder]: For 36/57 co-relation queries the response was YES. [2023-08-30 14:24:49,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 1225 events. 164/1225 cut-off events. For 36/57 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7898 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 626. Up to 16 conditions per place. [2023-08-30 14:24:49,807 INFO L119 LiptonReduction]: Number of co-enabled transitions 64352 [2023-08-30 14:25:06,759 INFO L134 LiptonReduction]: Checked pairs total: 133786 [2023-08-30 14:25:06,760 INFO L136 LiptonReduction]: Total number of compositions: 321 [2023-08-30 14:25:06,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:25:06,778 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5bf90254, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:25:06,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-08-30 14:25:06,782 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-30 14:25:06,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:25:06,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:25:06,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 14:25:06,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-08-30 14:25:06,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:25:06,789 INFO L85 PathProgramCache]: Analyzing trace with hash 46568838, now seen corresponding path program 1 times [2023-08-30 14:25:06,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:25:06,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763386979] [2023-08-30 14:25:06,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:25:06,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:25:06,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:25:07,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:25:07,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:25:07,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763386979] [2023-08-30 14:25:07,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763386979] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:25:07,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:25:07,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:25:07,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886292429] [2023-08-30 14:25:07,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:25:07,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:25:07,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:25:07,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:25:07,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:25:07,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 709 [2023-08-30 14:25:07,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 132 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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) [2023-08-30 14:25:07,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:25:07,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 709 [2023-08-30 14:25:07,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:25:22,775 INFO L130 PetriNetUnfolder]: 151441/220146 cut-off events. [2023-08-30 14:25:22,776 INFO L131 PetriNetUnfolder]: For 5672/5672 co-relation queries the response was YES. [2023-08-30 14:25:23,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426161 conditions, 220146 events. 151441/220146 cut-off events. For 5672/5672 co-relation queries the response was YES. Maximal size of possible extension queue 6112. Compared 1772580 event pairs, 102396 based on Foata normal form. 26002/186163 useless extension candidates. Maximal degree in co-relation 377077. Up to 203155 conditions per place. [2023-08-30 14:25:24,125 INFO L137 encePairwiseOnDemand]: 682/709 looper letters, 95 selfloop transitions, 2 changer transitions 0/116 dead transitions. [2023-08-30 14:25:24,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 116 transitions, 468 flow [2023-08-30 14:25:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:25:24,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:25:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1142 transitions. [2023-08-30 14:25:24,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.536906440996709 [2023-08-30 14:25:24,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1142 transitions. [2023-08-30 14:25:24,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1142 transitions. [2023-08-30 14:25:24,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:25:24,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1142 transitions. [2023-08-30 14:25:24,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.6666666666667) internal successors, (1142), 3 states have internal predecessors, (1142), 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) [2023-08-30 14:25:24,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 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) [2023-08-30 14:25:24,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 709.0) internal successors, (2836), 4 states have internal predecessors, (2836), 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) [2023-08-30 14:25:24,165 INFO L175 Difference]: Start difference. First operand has 104 places, 132 transitions, 306 flow. Second operand 3 states and 1142 transitions. [2023-08-30 14:25:24,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 116 transitions, 468 flow [2023-08-30 14:25:24,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 116 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:25:24,211 INFO L231 Difference]: Finished difference. Result has 105 places, 108 transitions, 266 flow [2023-08-30 14:25:24,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=709, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=105, PETRI_TRANSITIONS=108} [2023-08-30 14:25:24,219 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 1 predicate places. [2023-08-30 14:25:24,219 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 108 transitions, 266 flow [2023-08-30 14:25:24,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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) [2023-08-30 14:25:24,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:25:24,223 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-30 14:25:24,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:25:24,224 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2023-08-30 14:25:24,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:25:24,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1803026616, now seen corresponding path program 1 times [2023-08-30 14:25:24,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:25:24,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952289411] [2023-08-30 14:25:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:25:24,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:25:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:25:24,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 14:25:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 14:25:24,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 14:25:24,358 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 14:25:24,359 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2023-08-30 14:25:24,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2023-08-30 14:25:24,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2023-08-30 14:25:24,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2023-08-30 14:25:24,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2023-08-30 14:25:24,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2023-08-30 14:25:24,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2023-08-30 14:25:24,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2023-08-30 14:25:24,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2023-08-30 14:25:24,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2023-08-30 14:25:24,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2023-08-30 14:25:24,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2023-08-30 14:25:24,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2023-08-30 14:25:24,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2023-08-30 14:25:24,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2023-08-30 14:25:24,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2023-08-30 14:25:24,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2023-08-30 14:25:24,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2023-08-30 14:25:24,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2023-08-30 14:25:24,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2023-08-30 14:25:24,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2023-08-30 14:25:24,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2023-08-30 14:25:24,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2023-08-30 14:25:24,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2023-08-30 14:25:24,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2023-08-30 14:25:24,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2023-08-30 14:25:24,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2023-08-30 14:25:24,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2023-08-30 14:25:24,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2023-08-30 14:25:24,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2023-08-30 14:25:24,375 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2023-08-30 14:25:24,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:25:24,375 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 14:25:24,379 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-30 14:25:24,379 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-30 14:25:24,493 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-08-30 14:25:24,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 546 places, 617 transitions, 1324 flow [2023-08-30 14:25:26,067 INFO L130 PetriNetUnfolder]: 1130/6511 cut-off events. [2023-08-30 14:25:26,067 INFO L131 PetriNetUnfolder]: For 602/683 co-relation queries the response was YES. [2023-08-30 14:25:26,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7185 conditions, 6511 events. 1130/6511 cut-off events. For 602/683 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 62278 event pairs, 22 based on Foata normal form. 0/5163 useless extension candidates. Maximal degree in co-relation 3992. Up to 192 conditions per place. [2023-08-30 14:25:26,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 546 places, 617 transitions, 1324 flow [2023-08-30 14:25:26,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 546 places, 617 transitions, 1324 flow [2023-08-30 14:25:26,298 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:25:26,299 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 546 places, 617 transitions, 1324 flow [2023-08-30 14:25:26,299 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 546 places, 617 transitions, 1324 flow [2023-08-30 14:25:26,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 546 places, 617 transitions, 1324 flow [2023-08-30 14:25:27,767 INFO L130 PetriNetUnfolder]: 1130/6511 cut-off events. [2023-08-30 14:25:27,767 INFO L131 PetriNetUnfolder]: For 602/683 co-relation queries the response was YES. [2023-08-30 14:25:27,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7185 conditions, 6511 events. 1130/6511 cut-off events. For 602/683 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 62278 event pairs, 22 based on Foata normal form. 0/5163 useless extension candidates. Maximal degree in co-relation 3992. Up to 192 conditions per place. [2023-08-30 14:25:28,542 INFO L119 LiptonReduction]: Number of co-enabled transitions 231724 [2023-08-30 14:25:45,322 INFO L134 LiptonReduction]: Checked pairs total: 500299 [2023-08-30 14:25:45,323 INFO L136 LiptonReduction]: Total number of compositions: 490 [2023-08-30 14:25:45,326 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:25:45,331 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5bf90254, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:25:45,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-30 14:25:45,335 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-08-30 14:25:45,335 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:25:45,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:25:45,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:25:45,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-08-30 14:25:45,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:25:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1584161269, now seen corresponding path program 1 times [2023-08-30 14:25:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:25:45,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048943219] [2023-08-30 14:25:45,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:25:45,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:25:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:25:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:25:45,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:25:45,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048943219] [2023-08-30 14:25:45,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048943219] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:25:45,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:25:45,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:25:45,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230709243] [2023-08-30 14:25:45,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:25:45,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:25:45,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:25:45,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:25:45,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:25:45,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 1107 [2023-08-30 14:25:45,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 227 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 532.3333333333334) internal successors, (1597), 3 states have internal predecessors, (1597), 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) [2023-08-30 14:25:45,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:25:45,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 1107 [2023-08-30 14:25:45,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand