./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c --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/weaver/parallel-ticket-3.wvr.c -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 c947ca303cec71cbb6edeb9f866ed53067014e89778e5c242eb251405d7ab484 --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 15:12:41,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 15:12:41,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 15:12:41,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 15:12:41,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 15:12:41,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 15:12:41,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 15:12:41,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 15:12:41,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 15:12:41,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 15:12:41,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 15:12:41,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 15:12:41,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 15:12:41,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 15:12:41,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 15:12:41,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 15:12:41,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 15:12:41,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 15:12:41,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 15:12:41,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 15:12:41,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 15:12:41,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 15:12:41,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 15:12:41,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 15:12:41,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 15:12:41,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 15:12:41,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 15:12:41,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 15:12:41,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 15:12:41,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 15:12:41,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 15:12:41,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 15:12:41,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 15:12:41,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 15:12:41,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 15:12:41,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 15:12:41,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 15:12:41,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 15:12:41,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 15:12:41,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 15:12:41,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 15:12:41,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 15:12:41,958 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 15:12:41,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 15:12:41,959 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 15:12:41,959 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 15:12:41,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 15:12:41,960 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 15:12:41,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 15:12:41,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 15:12:41,961 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 15:12:41,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 15:12:41,962 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 15:12:41,963 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 15:12:41,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 15:12:41,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 15:12:41,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 15:12:41,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 15:12:41,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 15:12:41,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 15:12:41,964 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 15:12:41,964 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 15:12:41,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 15:12:41,965 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 15:12:41,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 15:12:41,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 15:12:41,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 15:12:41,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 15:12:41,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 15:12:41,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 15:12:41,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 15:12:41,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 15:12:41,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 15:12:41,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 15:12:41,967 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 15:12:41,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 15:12:41,967 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 15:12:41,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 15:12:41,968 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 15:12:41,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c947ca303cec71cbb6edeb9f866ed53067014e89778e5c242eb251405d7ab484 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 15:12:42,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 15:12:42,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 15:12:42,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 15:12:42,311 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 15:12:42,312 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 15:12:42,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2023-08-30 15:12:43,609 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 15:12:43,835 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 15:12:43,835 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2023-08-30 15:12:43,843 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb9d4442/6458a05b43914d4abc3b20f4ee13c832/FLAG5d227df80 [2023-08-30 15:12:43,867 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fb9d4442/6458a05b43914d4abc3b20f4ee13c832 [2023-08-30 15:12:43,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 15:12:43,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 15:12:43,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 15:12:43,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 15:12:43,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 15:12:43,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:12:43" (1/1) ... [2023-08-30 15:12:43,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b25f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:43, skipping insertion in model container [2023-08-30 15:12:43,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 03:12:43" (1/1) ... [2023-08-30 15:12:43,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 15:12:43,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 15:12:44,091 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3089,3102] [2023-08-30 15:12:44,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 15:12:44,108 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 15:12:44,145 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3089,3102] [2023-08-30 15:12:44,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 15:12:44,156 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 15:12:44,158 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 15:12:44,165 INFO L208 MainTranslator]: Completed translation [2023-08-30 15:12:44,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44 WrapperNode [2023-08-30 15:12:44,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 15:12:44,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 15:12:44,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 15:12:44,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 15:12:44,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,213 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 177 [2023-08-30 15:12:44,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 15:12:44,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 15:12:44,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 15:12:44,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 15:12:44,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 15:12:44,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 15:12:44,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 15:12:44,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 15:12:44,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (1/1) ... [2023-08-30 15:12:44,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 15:12:44,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 15:12:44,296 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 15:12:44,323 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 15:12:44,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 15:12:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 15:12:44,337 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 15:12:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 15:12:44,337 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 15:12:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 15:12:44,337 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 15:12:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 15:12:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 15:12:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 15:12:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 15:12:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 15:12:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 15:12:44,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 15:12:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 15:12:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 15:12:44,340 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 15:12:44,424 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 15:12:44,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 15:12:44,728 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 15:12:44,855 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 15:12:44,855 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 15:12:44,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:44 BoogieIcfgContainer [2023-08-30 15:12:44,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 15:12:44,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 15:12:44,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 15:12:44,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 15:12:44,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 03:12:43" (1/3) ... [2023-08-30 15:12:44,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbe6fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:12:44, skipping insertion in model container [2023-08-30 15:12:44,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 03:12:44" (2/3) ... [2023-08-30 15:12:44,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbe6fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 03:12:44, skipping insertion in model container [2023-08-30 15:12:44,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:44" (3/3) ... [2023-08-30 15:12:44,864 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2023-08-30 15:12:44,871 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 15:12:44,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 15:12:44,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-30 15:12:44,891 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 15:12:44,945 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-30 15:12:44,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 282 flow [2023-08-30 15:12:45,028 INFO L130 PetriNetUnfolder]: 2/126 cut-off events. [2023-08-30 15:12:45,028 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 15:12:45,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 126 events. 2/126 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-30 15:12:45,033 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 129 transitions, 282 flow [2023-08-30 15:12:45,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 108 transitions, 231 flow [2023-08-30 15:12:45,039 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 15:12:45,046 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 117 places, 108 transitions, 231 flow [2023-08-30 15:12:45,048 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 117 places, 108 transitions, 231 flow [2023-08-30 15:12:45,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 108 transitions, 231 flow [2023-08-30 15:12:45,075 INFO L130 PetriNetUnfolder]: 1/108 cut-off events. [2023-08-30 15:12:45,075 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 15:12:45,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 108 events. 1/108 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-30 15:12:45,077 INFO L119 LiptonReduction]: Number of co-enabled transitions 1390 [2023-08-30 15:12:48,678 INFO L134 LiptonReduction]: Checked pairs total: 8334 [2023-08-30 15:12:48,679 INFO L136 LiptonReduction]: Total number of compositions: 74 [2023-08-30 15:12:48,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 15:12:48,696 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;@48698137, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 15:12:48,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-08-30 15:12:48,698 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-08-30 15:12:48,701 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 15:12:48,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:48,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 15:12:48,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:48,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:48,706 INFO L85 PathProgramCache]: Analyzing trace with hash 515785, now seen corresponding path program 1 times [2023-08-30 15:12:48,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:48,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370028313] [2023-08-30 15:12:48,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:48,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:49,115 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 15:12:49,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:49,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370028313] [2023-08-30 15:12:49,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370028313] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:49,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:49,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 15:12:49,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345632739] [2023-08-30 15:12:49,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:49,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:12:49,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:49,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:12:49,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:12:49,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 203 [2023-08-30 15:12:49,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 15:12:49,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:49,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 203 [2023-08-30 15:12:49,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:49,584 INFO L130 PetriNetUnfolder]: 2487/3900 cut-off events. [2023-08-30 15:12:49,584 INFO L131 PetriNetUnfolder]: For 258/258 co-relation queries the response was YES. [2023-08-30 15:12:49,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7831 conditions, 3900 events. 2487/3900 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 24622 event pairs, 1732 based on Foata normal form. 0/2210 useless extension candidates. Maximal degree in co-relation 7692. Up to 3722 conditions per place. [2023-08-30 15:12:49,620 INFO L137 encePairwiseOnDemand]: 193/203 looper letters, 36 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-08-30 15:12:49,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 189 flow [2023-08-30 15:12:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:12:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:12:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2023-08-30 15:12:49,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5533661740558292 [2023-08-30 15:12:49,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 337 transitions. [2023-08-30 15:12:49,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 337 transitions. [2023-08-30 15:12:49,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:49,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 337 transitions. [2023-08-30 15:12:49,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 15:12:49,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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 15:12:49,682 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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 15:12:49,683 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 87 flow. Second operand 3 states and 337 transitions. [2023-08-30 15:12:49,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 189 flow [2023-08-30 15:12:49,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 177 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 15:12:49,691 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 114 flow [2023-08-30 15:12:49,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2023-08-30 15:12:49,697 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2023-08-30 15:12:49,699 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 114 flow [2023-08-30 15:12:49,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 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 15:12:49,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:49,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 15:12:49,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 15:12:49,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:49,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1810668551, now seen corresponding path program 1 times [2023-08-30 15:12:49,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:49,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558424211] [2023-08-30 15:12:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:49,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:49,801 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 15:12:49,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:49,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558424211] [2023-08-30 15:12:49,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558424211] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:49,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:49,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:12:49,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576762360] [2023-08-30 15:12:49,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:49,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 15:12:49,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:49,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 15:12:49,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 15:12:49,811 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 203 [2023-08-30 15:12:49,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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 15:12:49,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:49,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 203 [2023-08-30 15:12:49,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:50,045 INFO L130 PetriNetUnfolder]: 1733/2745 cut-off events. [2023-08-30 15:12:50,046 INFO L131 PetriNetUnfolder]: For 299/299 co-relation queries the response was YES. [2023-08-30 15:12:50,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6135 conditions, 2745 events. 1733/2745 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 16814 event pairs, 1613 based on Foata normal form. 0/1706 useless extension candidates. Maximal degree in co-relation 4470. Up to 2622 conditions per place. [2023-08-30 15:12:50,063 INFO L137 encePairwiseOnDemand]: 199/203 looper letters, 31 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-08-30 15:12:50,063 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 36 transitions, 166 flow [2023-08-30 15:12:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 15:12:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 15:12:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2023-08-30 15:12:50,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5303776683087028 [2023-08-30 15:12:50,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2023-08-30 15:12:50,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2023-08-30 15:12:50,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:50,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2023-08-30 15:12:50,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 15:12:50,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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 15:12:50,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 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 15:12:50,070 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 114 flow. Second operand 3 states and 323 transitions. [2023-08-30 15:12:50,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 36 transitions, 166 flow [2023-08-30 15:12:50,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 36 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:12:50,072 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 100 flow [2023-08-30 15:12:50,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2023-08-30 15:12:50,073 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -4 predicate places. [2023-08-30 15:12:50,073 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 100 flow [2023-08-30 15:12:50,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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 15:12:50,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:50,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 15:12:50,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 15:12:50,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:50,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:50,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1813583170, now seen corresponding path program 1 times [2023-08-30 15:12:50,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:50,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731332720] [2023-08-30 15:12:50,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:50,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:50,190 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 15:12:50,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731332720] [2023-08-30 15:12:50,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731332720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:50,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:50,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 15:12:50,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147830547] [2023-08-30 15:12:50,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:50,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 15:12:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:50,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 15:12:50,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 15:12:50,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 203 [2023-08-30 15:12:50,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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 15:12:50,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:50,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 203 [2023-08-30 15:12:50,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:50,431 INFO L130 PetriNetUnfolder]: 1478/2373 cut-off events. [2023-08-30 15:12:50,431 INFO L131 PetriNetUnfolder]: For 266/266 co-relation queries the response was YES. [2023-08-30 15:12:50,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5149 conditions, 2373 events. 1478/2373 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 14654 event pairs, 388 based on Foata normal form. 0/1513 useless extension candidates. Maximal degree in co-relation 5141. Up to 2138 conditions per place. [2023-08-30 15:12:50,443 INFO L137 encePairwiseOnDemand]: 196/203 looper letters, 50 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2023-08-30 15:12:50,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 61 transitions, 276 flow [2023-08-30 15:12:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 15:12:50,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 15:12:50,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 448 transitions. [2023-08-30 15:12:50,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2023-08-30 15:12:50,445 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 448 transitions. [2023-08-30 15:12:50,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 448 transitions. [2023-08-30 15:12:50,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:50,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 448 transitions. [2023-08-30 15:12:50,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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 15:12:50,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 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 15:12:50,449 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 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 15:12:50,449 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 100 flow. Second operand 4 states and 448 transitions. [2023-08-30 15:12:50,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 61 transitions, 276 flow [2023-08-30 15:12:50,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 61 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 15:12:50,451 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 143 flow [2023-08-30 15:12:50,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=143, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2023-08-30 15:12:50,452 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-08-30 15:12:50,452 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 143 flow [2023-08-30 15:12:50,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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 15:12:50,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:50,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:50,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 15:12:50,453 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:50,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:50,453 INFO L85 PathProgramCache]: Analyzing trace with hash -389483315, now seen corresponding path program 1 times [2023-08-30 15:12:50,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:50,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951861844] [2023-08-30 15:12:50,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:50,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:50,552 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 15:12:50,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:50,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951861844] [2023-08-30 15:12:50,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951861844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:50,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:50,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:12:50,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209838669] [2023-08-30 15:12:50,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:50,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:12:50,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:50,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:12:50,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:12:50,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 203 [2023-08-30 15:12:50,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 143 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 15:12:50,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:50,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 203 [2023-08-30 15:12:50,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:50,785 INFO L130 PetriNetUnfolder]: 1225/2010 cut-off events. [2023-08-30 15:12:50,785 INFO L131 PetriNetUnfolder]: For 624/624 co-relation queries the response was YES. [2023-08-30 15:12:50,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4774 conditions, 2010 events. 1225/2010 cut-off events. For 624/624 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 11639 event pairs, 480 based on Foata normal form. 0/1460 useless extension candidates. Maximal degree in co-relation 4764. Up to 1415 conditions per place. [2023-08-30 15:12:50,798 INFO L137 encePairwiseOnDemand]: 193/203 looper letters, 50 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2023-08-30 15:12:50,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 333 flow [2023-08-30 15:12:50,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:12:50,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:12:50,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 523 transitions. [2023-08-30 15:12:50,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5152709359605911 [2023-08-30 15:12:50,800 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 523 transitions. [2023-08-30 15:12:50,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 523 transitions. [2023-08-30 15:12:50,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:50,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 523 transitions. [2023-08-30 15:12:50,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 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 15:12:50,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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 15:12:50,804 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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 15:12:50,804 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 143 flow. Second operand 5 states and 523 transitions. [2023-08-30 15:12:50,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 333 flow [2023-08-30 15:12:50,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 61 transitions, 313 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-30 15:12:50,806 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 153 flow [2023-08-30 15:12:50,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2023-08-30 15:12:50,807 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-08-30 15:12:50,807 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 153 flow [2023-08-30 15:12:50,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 15:12:50,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:50,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:50,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 15:12:50,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:50,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:50,809 INFO L85 PathProgramCache]: Analyzing trace with hash -389483314, now seen corresponding path program 1 times [2023-08-30 15:12:50,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:50,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844857] [2023-08-30 15:12:50,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:50,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:50,906 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 15:12:50,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844857] [2023-08-30 15:12:50,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844857] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:50,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:50,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:12:50,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639905518] [2023-08-30 15:12:50,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:50,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:12:50,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:50,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:12:50,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:12:50,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 203 [2023-08-30 15:12:50,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 15:12:50,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:50,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 203 [2023-08-30 15:12:50,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:51,110 INFO L130 PetriNetUnfolder]: 720/1223 cut-off events. [2023-08-30 15:12:51,110 INFO L131 PetriNetUnfolder]: For 603/603 co-relation queries the response was YES. [2023-08-30 15:12:51,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3232 conditions, 1223 events. 720/1223 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6073 event pairs, 166 based on Foata normal form. 126/1219 useless extension candidates. Maximal degree in co-relation 3221. Up to 765 conditions per place. [2023-08-30 15:12:51,119 INFO L137 encePairwiseOnDemand]: 193/203 looper letters, 62 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2023-08-30 15:12:51,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 76 transitions, 435 flow [2023-08-30 15:12:51,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:12:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:12:51,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 535 transitions. [2023-08-30 15:12:51,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270935960591133 [2023-08-30 15:12:51,121 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 535 transitions. [2023-08-30 15:12:51,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 535 transitions. [2023-08-30 15:12:51,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:51,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 535 transitions. [2023-08-30 15:12:51,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.0) internal successors, (535), 5 states have internal predecessors, (535), 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 15:12:51,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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 15:12:51,126 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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 15:12:51,126 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 153 flow. Second operand 5 states and 535 transitions. [2023-08-30 15:12:51,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 76 transitions, 435 flow [2023-08-30 15:12:51,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 76 transitions, 430 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 15:12:51,129 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 207 flow [2023-08-30 15:12:51,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=207, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2023-08-30 15:12:51,129 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 3 predicate places. [2023-08-30 15:12:51,130 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 207 flow [2023-08-30 15:12:51,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 15:12:51,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:51,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:51,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 15:12:51,131 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:51,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:51,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1041946535, now seen corresponding path program 1 times [2023-08-30 15:12:51,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:51,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585755180] [2023-08-30 15:12:51,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:51,214 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 15:12:51,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:51,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585755180] [2023-08-30 15:12:51,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585755180] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:51,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:51,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:12:51,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592978071] [2023-08-30 15:12:51,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:51,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:12:51,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:51,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:12:51,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:12:51,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 203 [2023-08-30 15:12:51,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 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 15:12:51,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:51,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 203 [2023-08-30 15:12:51,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:51,367 INFO L130 PetriNetUnfolder]: 533/964 cut-off events. [2023-08-30 15:12:51,368 INFO L131 PetriNetUnfolder]: For 1123/1123 co-relation queries the response was YES. [2023-08-30 15:12:51,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2900 conditions, 964 events. 533/964 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4943 event pairs, 2 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 2887. Up to 470 conditions per place. [2023-08-30 15:12:51,374 INFO L137 encePairwiseOnDemand]: 196/203 looper letters, 61 selfloop transitions, 10 changer transitions 0/75 dead transitions. [2023-08-30 15:12:51,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 75 transitions, 484 flow [2023-08-30 15:12:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:12:51,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:12:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 547 transitions. [2023-08-30 15:12:51,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389162561576355 [2023-08-30 15:12:51,376 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 547 transitions. [2023-08-30 15:12:51,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 547 transitions. [2023-08-30 15:12:51,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:51,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 547 transitions. [2023-08-30 15:12:51,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 15:12:51,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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 15:12:51,380 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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 15:12:51,380 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 207 flow. Second operand 5 states and 547 transitions. [2023-08-30 15:12:51,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 75 transitions, 484 flow [2023-08-30 15:12:51,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 75 transitions, 440 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-30 15:12:51,383 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 188 flow [2023-08-30 15:12:51,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-30 15:12:51,384 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2023-08-30 15:12:51,384 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 188 flow [2023-08-30 15:12:51,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 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 15:12:51,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:51,385 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:51,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 15:12:51,385 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:51,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:51,385 INFO L85 PathProgramCache]: Analyzing trace with hash -297831416, now seen corresponding path program 1 times [2023-08-30 15:12:51,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:51,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455926757] [2023-08-30 15:12:51,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:51,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:51,514 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 15:12:51,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:51,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455926757] [2023-08-30 15:12:51,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455926757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:51,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:51,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 15:12:51,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127539676] [2023-08-30 15:12:51,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:51,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 15:12:51,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:51,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 15:12:51,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 15:12:51,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 203 [2023-08-30 15:12:51,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 188 flow. Second operand has 7 states, 7 states have (on average 94.42857142857143) internal successors, (661), 7 states have internal predecessors, (661), 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 15:12:51,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:51,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 203 [2023-08-30 15:12:51,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:51,793 INFO L130 PetriNetUnfolder]: 718/1377 cut-off events. [2023-08-30 15:12:51,793 INFO L131 PetriNetUnfolder]: For 1825/1825 co-relation queries the response was YES. [2023-08-30 15:12:51,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4012 conditions, 1377 events. 718/1377 cut-off events. For 1825/1825 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7990 event pairs, 110 based on Foata normal form. 80/1441 useless extension candidates. Maximal degree in co-relation 3999. Up to 497 conditions per place. [2023-08-30 15:12:51,800 INFO L137 encePairwiseOnDemand]: 193/203 looper letters, 63 selfloop transitions, 22 changer transitions 5/94 dead transitions. [2023-08-30 15:12:51,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 94 transitions, 596 flow [2023-08-30 15:12:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 15:12:51,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 15:12:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 640 transitions. [2023-08-30 15:12:51,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5254515599343186 [2023-08-30 15:12:51,803 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 640 transitions. [2023-08-30 15:12:51,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 640 transitions. [2023-08-30 15:12:51,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:51,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 640 transitions. [2023-08-30 15:12:51,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.66666666666667) internal successors, (640), 6 states have internal predecessors, (640), 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 15:12:51,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 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 15:12:51,807 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 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 15:12:51,807 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 188 flow. Second operand 6 states and 640 transitions. [2023-08-30 15:12:51,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 94 transitions, 596 flow [2023-08-30 15:12:51,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 94 transitions, 510 flow, removed 22 selfloop flow, removed 5 redundant places. [2023-08-30 15:12:51,811 INFO L231 Difference]: Finished difference. Result has 49 places, 48 transitions, 285 flow [2023-08-30 15:12:51,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2023-08-30 15:12:51,812 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 3 predicate places. [2023-08-30 15:12:51,812 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 285 flow [2023-08-30 15:12:51,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 94.42857142857143) internal successors, (661), 7 states have internal predecessors, (661), 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 15:12:51,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:51,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:51,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 15:12:51,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:51,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:51,814 INFO L85 PathProgramCache]: Analyzing trace with hash -713956018, now seen corresponding path program 2 times [2023-08-30 15:12:51,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:51,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640804385] [2023-08-30 15:12:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:51,934 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 15:12:51,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:51,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640804385] [2023-08-30 15:12:51,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640804385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:51,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:51,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 15:12:51,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953013646] [2023-08-30 15:12:51,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:51,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 15:12:51,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:51,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 15:12:51,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 15:12:51,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 203 [2023-08-30 15:12:51,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 285 flow. Second operand has 5 states, 5 states have (on average 95.2) internal successors, (476), 5 states have internal predecessors, (476), 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 15:12:51,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:51,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 203 [2023-08-30 15:12:51,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:52,129 INFO L130 PetriNetUnfolder]: 741/1350 cut-off events. [2023-08-30 15:12:52,130 INFO L131 PetriNetUnfolder]: For 2424/2440 co-relation queries the response was YES. [2023-08-30 15:12:52,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4159 conditions, 1350 events. 741/1350 cut-off events. For 2424/2440 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7107 event pairs, 130 based on Foata normal form. 56/1398 useless extension candidates. Maximal degree in co-relation 4146. Up to 499 conditions per place. [2023-08-30 15:12:52,138 INFO L137 encePairwiseOnDemand]: 193/203 looper letters, 58 selfloop transitions, 16 changer transitions 9/86 dead transitions. [2023-08-30 15:12:52,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 86 transitions, 614 flow [2023-08-30 15:12:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 15:12:52,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 15:12:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 530 transitions. [2023-08-30 15:12:52,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5221674876847291 [2023-08-30 15:12:52,141 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 530 transitions. [2023-08-30 15:12:52,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 530 transitions. [2023-08-30 15:12:52,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:52,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 530 transitions. [2023-08-30 15:12:52,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 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 15:12:52,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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 15:12:52,145 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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 15:12:52,145 INFO L175 Difference]: Start difference. First operand has 49 places, 48 transitions, 285 flow. Second operand 5 states and 530 transitions. [2023-08-30 15:12:52,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 86 transitions, 614 flow [2023-08-30 15:12:52,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 86 transitions, 571 flow, removed 12 selfloop flow, removed 4 redundant places. [2023-08-30 15:12:52,150 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 307 flow [2023-08-30 15:12:52,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=307, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2023-08-30 15:12:52,151 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places. [2023-08-30 15:12:52,151 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 307 flow [2023-08-30 15:12:52,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.2) internal successors, (476), 5 states have internal predecessors, (476), 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 15:12:52,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 15:12:52,152 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:52,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 15:12:52,152 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2023-08-30 15:12:52,152 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 15:12:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash -544508062, now seen corresponding path program 1 times [2023-08-30 15:12:52,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 15:12:52,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736893551] [2023-08-30 15:12:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 15:12:52,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 15:12:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 15:12:52,328 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 15:12:52,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 15:12:52,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736893551] [2023-08-30 15:12:52,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736893551] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 15:12:52,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 15:12:52,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 15:12:52,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614716849] [2023-08-30 15:12:52,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 15:12:52,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 15:12:52,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 15:12:52,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 15:12:52,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-08-30 15:12:52,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 203 [2023-08-30 15:12:52,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 307 flow. Second operand has 9 states, 9 states have (on average 94.66666666666667) internal successors, (852), 9 states have internal predecessors, (852), 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 15:12:52,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 15:12:52,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 203 [2023-08-30 15:12:52,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 15:12:52,683 INFO L130 PetriNetUnfolder]: 609/1178 cut-off events. [2023-08-30 15:12:52,683 INFO L131 PetriNetUnfolder]: For 2899/2943 co-relation queries the response was YES. [2023-08-30 15:12:52,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3722 conditions, 1178 events. 609/1178 cut-off events. For 2899/2943 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6551 event pairs, 52 based on Foata normal form. 36/1204 useless extension candidates. Maximal degree in co-relation 3709. Up to 240 conditions per place. [2023-08-30 15:12:52,687 INFO L137 encePairwiseOnDemand]: 193/203 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2023-08-30 15:12:52,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 122 transitions, 788 flow [2023-08-30 15:12:52,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 15:12:52,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 15:12:52,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1234 transitions. [2023-08-30 15:12:52,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.506568144499179 [2023-08-30 15:12:52,691 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1234 transitions. [2023-08-30 15:12:52,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1234 transitions. [2023-08-30 15:12:52,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 15:12:52,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1234 transitions. [2023-08-30 15:12:52,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 102.83333333333333) internal successors, (1234), 12 states have internal predecessors, (1234), 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 15:12:52,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 203.0) internal successors, (2639), 13 states have internal predecessors, (2639), 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 15:12:52,700 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 203.0) internal successors, (2639), 13 states have internal predecessors, (2639), 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 15:12:52,701 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 307 flow. Second operand 12 states and 1234 transitions. [2023-08-30 15:12:52,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 122 transitions, 788 flow [2023-08-30 15:12:52,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 122 transitions, 692 flow, removed 9 selfloop flow, removed 7 redundant places. [2023-08-30 15:12:52,708 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2023-08-30 15:12:52,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2023-08-30 15:12:52,709 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2023-08-30 15:12:52,709 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2023-08-30 15:12:52,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 94.66666666666667) internal successors, (852), 9 states have internal predecessors, (852), 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 15:12:52,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2023-08-30 15:12:52,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2023-08-30 15:12:52,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2023-08-30 15:12:52,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2023-08-30 15:12:52,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2023-08-30 15:12:52,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2023-08-30 15:12:52,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2023-08-30 15:12:52,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2023-08-30 15:12:52,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2023-08-30 15:12:52,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2023-08-30 15:12:52,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2023-08-30 15:12:52,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2023-08-30 15:12:52,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2023-08-30 15:12:52,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2023-08-30 15:12:52,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2023-08-30 15:12:52,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2023-08-30 15:12:52,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2023-08-30 15:12:52,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2023-08-30 15:12:52,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2023-08-30 15:12:52,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2023-08-30 15:12:52,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2023-08-30 15:12:52,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2023-08-30 15:12:52,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2023-08-30 15:12:52,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2023-08-30 15:12:52,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2023-08-30 15:12:52,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2023-08-30 15:12:52,722 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2023-08-30 15:12:52,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 15:12:52,723 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 15:12:52,727 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 15:12:52,728 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 15:12:52,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 03:12:52 BasicIcfg [2023-08-30 15:12:52,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 15:12:52,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 15:12:52,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 15:12:52,732 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 15:12:52,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 03:12:44" (3/4) ... [2023-08-30 15:12:52,736 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 15:12:52,740 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 15:12:52,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 15:12:52,741 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-30 15:12:52,746 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 15:12:52,746 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 15:12:52,746 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 15:12:52,747 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 15:12:52,781 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 15:12:52,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 15:12:52,782 INFO L158 Benchmark]: Toolchain (without parser) took 8910.61ms. Allocated memory was 79.7MB in the beginning and 323.0MB in the end (delta: 243.3MB). Free memory was 54.9MB in the beginning and 201.8MB in the end (delta: -146.8MB). Peak memory consumption was 94.6MB. Max. memory is 16.1GB. [2023-08-30 15:12:52,782 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 15:12:52,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.96ms. Allocated memory is still 79.7MB. Free memory was 54.7MB in the beginning and 43.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 15:12:52,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.24ms. Allocated memory is still 79.7MB. Free memory was 43.4MB in the beginning and 41.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:12:52,783 INFO L158 Benchmark]: Boogie Preprocessor took 28.34ms. Allocated memory is still 79.7MB. Free memory was 41.4MB in the beginning and 59.9MB in the end (delta: -18.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-08-30 15:12:52,783 INFO L158 Benchmark]: RCFGBuilder took 611.24ms. Allocated memory is still 79.7MB. Free memory was 59.5MB in the beginning and 34.8MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-08-30 15:12:52,784 INFO L158 Benchmark]: TraceAbstraction took 7871.92ms. Allocated memory was 79.7MB in the beginning and 323.0MB in the end (delta: 243.3MB). Free memory was 34.1MB in the beginning and 204.9MB in the end (delta: -170.8MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2023-08-30 15:12:52,784 INFO L158 Benchmark]: Witness Printer took 50.17ms. Allocated memory is still 323.0MB. Free memory was 204.9MB in the beginning and 201.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 15:12:52,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.96ms. Allocated memory is still 79.7MB. Free memory was 54.7MB in the beginning and 43.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.24ms. Allocated memory is still 79.7MB. Free memory was 43.4MB in the beginning and 41.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.34ms. Allocated memory is still 79.7MB. Free memory was 41.4MB in the beginning and 59.9MB in the end (delta: -18.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * RCFGBuilder took 611.24ms. Allocated memory is still 79.7MB. Free memory was 59.5MB in the beginning and 34.8MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 7871.92ms. Allocated memory was 79.7MB in the beginning and 323.0MB in the end (delta: 243.3MB). Free memory was 34.1MB in the beginning and 204.9MB in the end (delta: -170.8MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Witness Printer took 50.17ms. Allocated memory is still 323.0MB. Free memory was 204.9MB in the beginning and 201.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 117 PlacesBefore, 46 PlacesAfterwards, 108 TransitionsBefore, 36 TransitionsAfterwards, 1390 CoEnabledTransitionPairs, 8 FixpointIterations, 54 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 8334 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2808, independent: 2503, independent conditional: 0, independent unconditional: 2503, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 604, independent: 567, independent conditional: 0, independent unconditional: 567, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2808, independent: 1936, independent conditional: 0, independent unconditional: 1936, dependent: 268, dependent conditional: 0, dependent unconditional: 268, unknown: 604, unknown conditional: 0, unknown unconditional: 604] , Statistics on independence cache: Total cache size (in pairs): 203, Positive cache size: 186, Positive conditional cache size: 0, Positive unconditional cache size: 186, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 165 locations, 27 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 588 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 529 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1085 IncrementalHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 24 mSDtfsCounter, 1085 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=307occurred in iteration=8, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 362 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 15:12:52,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE