./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-match-trans.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/chl-match-trans.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 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 14:48:11,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:48:11,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:48:11,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:48:11,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:48:11,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:48:11,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:48:11,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:48:11,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:48:11,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:48:11,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:48:11,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:48:11,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:48:11,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:48:11,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:48:11,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:48:11,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:48:11,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:48:11,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:48:11,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:48:11,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:48:11,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:48:11,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:48:11,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:48:11,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:48:11,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:48:11,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:48:11,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:48:11,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:48:11,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:48:11,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:48:11,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:48:11,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:48:11,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:48:11,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:48:11,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:48:11,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:48:11,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:48:11,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:48:11,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:48:11,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:48:11,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:48:11,266 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:48:11,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:48:11,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:48:11,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:48:11,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:48:11,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:48:11,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:48:11,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:48:11,269 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:48:11,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:48:11,270 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:48:11,270 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:48:11,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:48:11,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:48:11,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:48:11,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:48:11,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:48:11,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:48:11,271 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:48:11,271 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:48:11,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:48:11,271 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:48:11,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:48:11,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:48:11,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:48:11,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:48:11,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:48:11,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:48:11,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:48:11,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:48:11,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:48:11,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:48:11,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:48:11,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:48:11,273 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:48:11,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:48:11,274 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:48:11,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:48:11,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:48:11,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:48:11,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:48:11,558 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:48:11,559 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:48:11,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2023-08-30 14:48:12,402 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:48:12,599 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:48:12,599 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-trans.wvr.c [2023-08-30 14:48:12,605 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32c42d02/b3fe4fb0b17a4e56965a0c5fba3eeb6e/FLAGecac4a6fb [2023-08-30 14:48:12,620 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f32c42d02/b3fe4fb0b17a4e56965a0c5fba3eeb6e [2023-08-30 14:48:12,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:48:12,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:48:12,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:48:12,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:48:12,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:48:12,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddd8a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12, skipping insertion in model container [2023-08-30 14:48:12,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:48:12,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:48:12,757 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/chl-match-trans.wvr.c[2954,2967] [2023-08-30 14:48:12,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:48:12,780 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:48:12,809 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/chl-match-trans.wvr.c[2954,2967] [2023-08-30 14:48:12,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:48:12,827 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:48:12,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12 WrapperNode [2023-08-30 14:48:12,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:48:12,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:48:12,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:48:12,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:48:12,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,884 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 295 [2023-08-30 14:48:12,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:48:12,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:48:12,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:48:12,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:48:12,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,924 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:48:12,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:48:12,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:48:12,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:48:12,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (1/1) ... [2023-08-30 14:48:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:48:12,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:48:12,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 14:48:12,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 14:48:12,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:48:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 14:48:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 14:48:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 14:48:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 14:48:12,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 14:48:12,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 14:48:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:48:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:48:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:48:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:48:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:48:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:48:12,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:48:12,997 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 14:48:13,123 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:48:13,125 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:48:13,504 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:48:13,513 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:48:13,513 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 14:48:13,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:48:13 BoogieIcfgContainer [2023-08-30 14:48:13,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:48:13,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:48:13,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:48:13,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:48:13,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:48:12" (1/3) ... [2023-08-30 14:48:13,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e78bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:48:13, skipping insertion in model container [2023-08-30 14:48:13,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:48:12" (2/3) ... [2023-08-30 14:48:13,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e78bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:48:13, skipping insertion in model container [2023-08-30 14:48:13,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:48:13" (3/3) ... [2023-08-30 14:48:13,524 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2023-08-30 14:48:13,529 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:48:13,535 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:48:13,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-30 14:48:13,535 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:48:13,678 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-30 14:48:13,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 364 places, 379 transitions, 782 flow [2023-08-30 14:48:13,884 INFO L130 PetriNetUnfolder]: 25/376 cut-off events. [2023-08-30 14:48:13,884 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 14:48:13,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 376 events. 25/376 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 880 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-08-30 14:48:13,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 379 transitions, 782 flow [2023-08-30 14:48:13,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 344 places, 358 transitions, 731 flow [2023-08-30 14:48:13,908 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:48:13,919 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 358 transitions, 731 flow [2023-08-30 14:48:13,922 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 358 transitions, 731 flow [2023-08-30 14:48:13,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 344 places, 358 transitions, 731 flow [2023-08-30 14:48:13,979 INFO L130 PetriNetUnfolder]: 24/358 cut-off events. [2023-08-30 14:48:13,979 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 14:48:13,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 358 events. 24/358 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 881 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-08-30 14:48:13,997 INFO L119 LiptonReduction]: Number of co-enabled transitions 56238 [2023-08-30 14:48:40,495 INFO L134 LiptonReduction]: Checked pairs total: 55616 [2023-08-30 14:48:40,495 INFO L136 LiptonReduction]: Total number of compositions: 508 [2023-08-30 14:48:40,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:48:40,508 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;@2fd0577, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:48:40,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2023-08-30 14:48:40,514 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 14:48:40,514 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:40,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:40,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:40,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:40,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:40,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1618494, now seen corresponding path program 1 times [2023-08-30 14:48:40,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:40,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591792203] [2023-08-30 14:48:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:40,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:40,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:40,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591792203] [2023-08-30 14:48:40,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591792203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:40,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:40,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:40,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085576552] [2023-08-30 14:48:40,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:40,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 14:48:40,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:40,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 14:48:40,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 14:48:40,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 887 [2023-08-30 14:48:40,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 360.5) internal successors, (721), 2 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:40,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:40,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 887 [2023-08-30 14:48:40,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:41,762 INFO L130 PetriNetUnfolder]: 5157/7598 cut-off events. [2023-08-30 14:48:41,762 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2023-08-30 14:48:41,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15533 conditions, 7598 events. 5157/7598 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 45550 event pairs, 5157 based on Foata normal form. 0/2126 useless extension candidates. Maximal degree in co-relation 14216. Up to 7599 conditions per place. [2023-08-30 14:48:41,792 INFO L137 encePairwiseOnDemand]: 875/887 looper letters, 38 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2023-08-30 14:48:41,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 167 flow [2023-08-30 14:48:41,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 14:48:41,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 14:48:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 768 transitions. [2023-08-30 14:48:41,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43291995490417134 [2023-08-30 14:48:41,807 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 768 transitions. [2023-08-30 14:48:41,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 768 transitions. [2023-08-30 14:48:41,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:41,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 768 transitions. [2023-08-30 14:48:41,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 384.0) internal successors, (768), 2 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:41,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 887.0) internal successors, (2661), 3 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:41,822 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 887.0) internal successors, (2661), 3 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:41,823 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 115 flow. Second operand 2 states and 768 transitions. [2023-08-30 14:48:41,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 167 flow [2023-08-30 14:48:41,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 158 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 14:48:41,832 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 82 flow [2023-08-30 14:48:41,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-08-30 14:48:41,835 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -16 predicate places. [2023-08-30 14:48:41,835 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 82 flow [2023-08-30 14:48:41,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 360.5) internal successors, (721), 2 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:41,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:41,837 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:41,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:48:41,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:41,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:41,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1618664, now seen corresponding path program 1 times [2023-08-30 14:48:41,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:41,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331151718] [2023-08-30 14:48:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:41,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:42,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:42,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331151718] [2023-08-30 14:48:42,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331151718] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:42,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:42,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:42,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407669169] [2023-08-30 14:48:42,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:42,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:42,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:42,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:42,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:42,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:42,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:42,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:42,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:42,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:42,922 INFO L130 PetriNetUnfolder]: 4173/6174 cut-off events. [2023-08-30 14:48:42,922 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:42,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12523 conditions, 6174 events. 4173/6174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 36058 event pairs, 4173 based on Foata normal form. 0/1792 useless extension candidates. Maximal degree in co-relation 12520. Up to 6174 conditions per place. [2023-08-30 14:48:42,971 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-08-30 14:48:42,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 150 flow [2023-08-30 14:48:42,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:42,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1109 transitions. [2023-08-30 14:48:42,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41676061630965805 [2023-08-30 14:48:42,974 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1109 transitions. [2023-08-30 14:48:42,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1109 transitions. [2023-08-30 14:48:42,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:42,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1109 transitions. [2023-08-30 14:48:42,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:42,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:42,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:42,981 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 82 flow. Second operand 3 states and 1109 transitions. [2023-08-30 14:48:42,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 150 flow [2023-08-30 14:48:42,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 36 transitions, 150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 14:48:42,983 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 80 flow [2023-08-30 14:48:42,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, 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=80, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2023-08-30 14:48:42,984 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -16 predicate places. [2023-08-30 14:48:42,984 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 80 flow [2023-08-30 14:48:42,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:42,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:42,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:42,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:48:42,985 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:42,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:42,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1618665, now seen corresponding path program 1 times [2023-08-30 14:48:42,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:42,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955080279] [2023-08-30 14:48:42,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:42,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:43,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:43,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955080279] [2023-08-30 14:48:43,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955080279] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:43,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:43,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:43,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625179156] [2023-08-30 14:48:43,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:43,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:43,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:43,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:43,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:43,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:43,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:43,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:43,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:43,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:43,819 INFO L130 PetriNetUnfolder]: 3293/4898 cut-off events. [2023-08-30 14:48:43,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:43,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9938 conditions, 4898 events. 3293/4898 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 27592 event pairs, 3293 based on Foata normal form. 0/1486 useless extension candidates. Maximal degree in co-relation 9934. Up to 4898 conditions per place. [2023-08-30 14:48:43,837 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-08-30 14:48:43,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 144 flow [2023-08-30 14:48:43,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1107 transitions. [2023-08-30 14:48:43,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4160090191657272 [2023-08-30 14:48:43,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1107 transitions. [2023-08-30 14:48:43,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1107 transitions. [2023-08-30 14:48:43,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:43,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1107 transitions. [2023-08-30 14:48:43,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.0) internal successors, (1107), 3 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:43,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:43,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:43,848 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 80 flow. Second operand 3 states and 1107 transitions. [2023-08-30 14:48:43,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 144 flow [2023-08-30 14:48:43,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:43,849 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 77 flow [2023-08-30 14:48:43,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2023-08-30 14:48:43,850 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-08-30 14:48:43,850 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 77 flow [2023-08-30 14:48:43,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:43,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:43,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:43,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 14:48:43,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:43,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:43,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1618663, now seen corresponding path program 1 times [2023-08-30 14:48:43,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:43,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140184988] [2023-08-30 14:48:43,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:43,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:43,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:43,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140184988] [2023-08-30 14:48:43,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140184988] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:43,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:43,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:43,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113671515] [2023-08-30 14:48:43,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:43,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:43,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:43,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:43,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:43,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:43,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:43,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:43,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:43,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:44,342 INFO L130 PetriNetUnfolder]: 2517/3770 cut-off events. [2023-08-30 14:48:44,343 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:44,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7652 conditions, 3770 events. 2517/3770 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 20595 event pairs, 2517 based on Foata normal form. 0/1208 useless extension candidates. Maximal degree in co-relation 7648. Up to 3770 conditions per place. [2023-08-30 14:48:44,354 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-08-30 14:48:44,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 137 flow [2023-08-30 14:48:44,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:44,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:44,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1105 transitions. [2023-08-30 14:48:44,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41525742202179633 [2023-08-30 14:48:44,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1105 transitions. [2023-08-30 14:48:44,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1105 transitions. [2023-08-30 14:48:44,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:44,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1105 transitions. [2023-08-30 14:48:44,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,364 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 77 flow. Second operand 3 states and 1105 transitions. [2023-08-30 14:48:44,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 137 flow [2023-08-30 14:48:44,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 32 transitions, 136 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:44,365 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 74 flow [2023-08-30 14:48:44,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-08-30 14:48:44,366 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-08-30 14:48:44,366 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 74 flow [2023-08-30 14:48:44,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:44,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:44,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 14:48:44,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:44,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:44,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1618529, now seen corresponding path program 1 times [2023-08-30 14:48:44,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:44,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565760598] [2023-08-30 14:48:44,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:44,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:44,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:44,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:44,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565760598] [2023-08-30 14:48:44,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565760598] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:44,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:44,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:44,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105939643] [2023-08-30 14:48:44,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:44,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:44,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:44,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:44,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:44,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:44,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:44,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:44,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:44,762 INFO L130 PetriNetUnfolder]: 1961/2958 cut-off events. [2023-08-30 14:48:44,762 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:44,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6014 conditions, 2958 events. 1961/2958 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 15559 event pairs, 1961 based on Foata normal form. 0/1000 useless extension candidates. Maximal degree in co-relation 6010. Up to 2958 conditions per place. [2023-08-30 14:48:44,771 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-30 14:48:44,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 130 flow [2023-08-30 14:48:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:44,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1103 transitions. [2023-08-30 14:48:44,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41450582487786547 [2023-08-30 14:48:44,773 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1103 transitions. [2023-08-30 14:48:44,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1103 transitions. [2023-08-30 14:48:44,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:44,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1103 transitions. [2023-08-30 14:48:44,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.6666666666667) internal successors, (1103), 3 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,780 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,780 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 74 flow. Second operand 3 states and 1103 transitions. [2023-08-30 14:48:44,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 130 flow [2023-08-30 14:48:44,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:44,781 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 71 flow [2023-08-30 14:48:44,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-08-30 14:48:44,782 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -19 predicate places. [2023-08-30 14:48:44,782 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 71 flow [2023-08-30 14:48:44,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:44,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:44,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 14:48:44,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:44,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:44,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1618617, now seen corresponding path program 1 times [2023-08-30 14:48:44,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:44,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28771105] [2023-08-30 14:48:44,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:44,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:44,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:44,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28771105] [2023-08-30 14:48:44,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28771105] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:44,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:44,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:44,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466909217] [2023-08-30 14:48:44,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:44,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:44,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:44,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:44,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:44,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:44,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:44,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:44,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:44,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:45,113 INFO L130 PetriNetUnfolder]: 1471/2240 cut-off events. [2023-08-30 14:48:45,113 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:45,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4564 conditions, 2240 events. 1471/2240 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 11266 event pairs, 1471 based on Foata normal form. 0/810 useless extension candidates. Maximal degree in co-relation 4560. Up to 2240 conditions per place. [2023-08-30 14:48:45,119 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-30 14:48:45,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 123 flow [2023-08-30 14:48:45,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:45,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1101 transitions. [2023-08-30 14:48:45,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4137542277339346 [2023-08-30 14:48:45,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1101 transitions. [2023-08-30 14:48:45,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1101 transitions. [2023-08-30 14:48:45,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:45,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1101 transitions. [2023-08-30 14:48:45,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,128 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 71 flow. Second operand 3 states and 1101 transitions. [2023-08-30 14:48:45,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 123 flow [2023-08-30 14:48:45,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 28 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:45,129 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 68 flow [2023-08-30 14:48:45,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2023-08-30 14:48:45,130 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -20 predicate places. [2023-08-30 14:48:45,130 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 68 flow [2023-08-30 14:48:45,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:45,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:45,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 14:48:45,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:45,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:45,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1618620, now seen corresponding path program 1 times [2023-08-30 14:48:45,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:45,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870867497] [2023-08-30 14:48:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:45,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:45,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:45,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:45,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870867497] [2023-08-30 14:48:45,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870867497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:45,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:45,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:45,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411446358] [2023-08-30 14:48:45,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:45,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:45,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:45,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:45,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:45,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:45,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:45,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:45,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:45,407 INFO L130 PetriNetUnfolder]: 1047/1616 cut-off events. [2023-08-30 14:48:45,408 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:45,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3302 conditions, 1616 events. 1047/1616 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 7694 event pairs, 1047 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 3298. Up to 1616 conditions per place. [2023-08-30 14:48:45,413 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-30 14:48:45,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 26 transitions, 116 flow [2023-08-30 14:48:45,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:45,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1099 transitions. [2023-08-30 14:48:45,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41300263059000375 [2023-08-30 14:48:45,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1099 transitions. [2023-08-30 14:48:45,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1099 transitions. [2023-08-30 14:48:45,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:45,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1099 transitions. [2023-08-30 14:48:45,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,421 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 68 flow. Second operand 3 states and 1099 transitions. [2023-08-30 14:48:45,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 26 transitions, 116 flow [2023-08-30 14:48:45,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 26 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:45,422 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 65 flow [2023-08-30 14:48:45,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2023-08-30 14:48:45,423 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -21 predicate places. [2023-08-30 14:48:45,423 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 65 flow [2023-08-30 14:48:45,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:45,423 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:45,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 14:48:45,424 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:45,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1618618, now seen corresponding path program 1 times [2023-08-30 14:48:45,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:45,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523239704] [2023-08-30 14:48:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:45,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:45,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:45,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:45,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523239704] [2023-08-30 14:48:45,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523239704] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:45,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:45,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:45,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819814418] [2023-08-30 14:48:45,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:45,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:45,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:45,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:45,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:45,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:45,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:45,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:45,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:45,648 INFO L130 PetriNetUnfolder]: 689/1086 cut-off events. [2023-08-30 14:48:45,648 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:45,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1086 events. 689/1086 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 4870 event pairs, 689 based on Foata normal form. 0/484 useless extension candidates. Maximal degree in co-relation 2224. Up to 1086 conditions per place. [2023-08-30 14:48:45,651 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 14:48:45,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 24 transitions, 109 flow [2023-08-30 14:48:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:45,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:45,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1097 transitions. [2023-08-30 14:48:45,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4122510334460729 [2023-08-30 14:48:45,654 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1097 transitions. [2023-08-30 14:48:45,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1097 transitions. [2023-08-30 14:48:45,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:45,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1097 transitions. [2023-08-30 14:48:45,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.6666666666667) internal successors, (1097), 3 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,659 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 65 flow. Second operand 3 states and 1097 transitions. [2023-08-30 14:48:45,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 24 transitions, 109 flow [2023-08-30 14:48:45,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:45,660 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 62 flow [2023-08-30 14:48:45,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2023-08-30 14:48:45,660 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -22 predicate places. [2023-08-30 14:48:45,660 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 62 flow [2023-08-30 14:48:45,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:45,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:48:45,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 14:48:45,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:45,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:45,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1618633, now seen corresponding path program 1 times [2023-08-30 14:48:45,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:45,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534843580] [2023-08-30 14:48:45,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:45,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:45,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:45,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534843580] [2023-08-30 14:48:45,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534843580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:45,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:45,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:45,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445215222] [2023-08-30 14:48:45,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:45,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:45,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:45,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:45,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:45,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:45,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:45,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:45,824 INFO L130 PetriNetUnfolder]: 405/662 cut-off events. [2023-08-30 14:48:45,824 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:45,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 662 events. 405/662 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2709 event pairs, 405 based on Foata normal form. 0/350 useless extension candidates. Maximal degree in co-relation 1358. Up to 662 conditions per place. [2023-08-30 14:48:45,826 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-30 14:48:45,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 22 transitions, 102 flow [2023-08-30 14:48:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:45,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1095 transitions. [2023-08-30 14:48:45,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41149943630214203 [2023-08-30 14:48:45,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1095 transitions. [2023-08-30 14:48:45,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1095 transitions. [2023-08-30 14:48:45,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:45,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1095 transitions. [2023-08-30 14:48:45,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.0) internal successors, (1095), 3 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,834 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 62 flow. Second operand 3 states and 1095 transitions. [2023-08-30 14:48:45,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 22 transitions, 102 flow [2023-08-30 14:48:45,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 22 transitions, 101 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:45,835 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 59 flow [2023-08-30 14:48:45,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=37, PETRI_TRANSITIONS=22} [2023-08-30 14:48:45,836 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -23 predicate places. [2023-08-30 14:48:45,836 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 59 flow [2023-08-30 14:48:45,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.0) internal successors, (1074), 3 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:45,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:48:45,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 14:48:45,837 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:45,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:45,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1555375044, now seen corresponding path program 1 times [2023-08-30 14:48:45,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:45,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946901977] [2023-08-30 14:48:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:45,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:45,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:45,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:45,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946901977] [2023-08-30 14:48:45,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946901977] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:45,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:45,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:45,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690671939] [2023-08-30 14:48:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:45,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:45,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:45,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:45,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:45,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:45,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:45,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:45,972 INFO L130 PetriNetUnfolder]: 277/462 cut-off events. [2023-08-30 14:48:45,972 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:45,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 462 events. 277/462 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1742 event pairs, 277 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 955. Up to 462 conditions per place. [2023-08-30 14:48:45,974 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-30 14:48:45,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 20 transitions, 95 flow [2023-08-30 14:48:45,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:45,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1093 transitions. [2023-08-30 14:48:45,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4107478391582112 [2023-08-30 14:48:45,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1093 transitions. [2023-08-30 14:48:45,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1093 transitions. [2023-08-30 14:48:45,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:45,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1093 transitions. [2023-08-30 14:48:45,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,982 INFO L175 Difference]: Start difference. First operand has 37 places, 22 transitions, 59 flow. Second operand 3 states and 1093 transitions. [2023-08-30 14:48:45,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 20 transitions, 95 flow [2023-08-30 14:48:45,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 20 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:45,982 INFO L231 Difference]: Finished difference. Result has 36 places, 20 transitions, 56 flow [2023-08-30 14:48:45,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=36, PETRI_TRANSITIONS=20} [2023-08-30 14:48:45,983 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -24 predicate places. [2023-08-30 14:48:45,983 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 56 flow [2023-08-30 14:48:45,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:45,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:45,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:48:45,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 14:48:45,984 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:45,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:45,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1555375051, now seen corresponding path program 1 times [2023-08-30 14:48:45,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:45,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107263579] [2023-08-30 14:48:45,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:45,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:46,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:46,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:46,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107263579] [2023-08-30 14:48:46,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107263579] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:46,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:46,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:46,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888829730] [2023-08-30 14:48:46,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:46,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:46,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:46,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:46,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:46,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:46,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:46,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:46,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:46,099 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2023-08-30 14:48:46,099 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:46,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 298 events. 173/298 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 999 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 624. Up to 298 conditions per place. [2023-08-30 14:48:46,100 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-30 14:48:46,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 18 transitions, 88 flow [2023-08-30 14:48:46,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:46,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2023-08-30 14:48:46,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40999624201428037 [2023-08-30 14:48:46,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1091 transitions. [2023-08-30 14:48:46,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1091 transitions. [2023-08-30 14:48:46,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:46,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1091 transitions. [2023-08-30 14:48:46,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,107 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,107 INFO L175 Difference]: Start difference. First operand has 36 places, 20 transitions, 56 flow. Second operand 3 states and 1091 transitions. [2023-08-30 14:48:46,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 18 transitions, 88 flow [2023-08-30 14:48:46,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 18 transitions, 87 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:46,108 INFO L231 Difference]: Finished difference. Result has 35 places, 18 transitions, 53 flow [2023-08-30 14:48:46,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2023-08-30 14:48:46,108 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -25 predicate places. [2023-08-30 14:48:46,109 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 53 flow [2023-08-30 14:48:46,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:46,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:48:46,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 14:48:46,109 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:46,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:46,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1555375052, now seen corresponding path program 1 times [2023-08-30 14:48:46,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:46,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840870855] [2023-08-30 14:48:46,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:46,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:46,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:46,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:46,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840870855] [2023-08-30 14:48:46,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840870855] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:46,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:46,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:46,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198927882] [2023-08-30 14:48:46,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:46,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:46,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:46,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:46,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:46,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:46,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:46,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:46,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:46,202 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2023-08-30 14:48:46,202 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:46,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 170 events. 93/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 470 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 365. Up to 170 conditions per place. [2023-08-30 14:48:46,203 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-30 14:48:46,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 16 transitions, 81 flow [2023-08-30 14:48:46,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1089 transitions. [2023-08-30 14:48:46,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4092446448703495 [2023-08-30 14:48:46,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1089 transitions. [2023-08-30 14:48:46,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1089 transitions. [2023-08-30 14:48:46,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:46,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1089 transitions. [2023-08-30 14:48:46,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,210 INFO L175 Difference]: Start difference. First operand has 35 places, 18 transitions, 53 flow. Second operand 3 states and 1089 transitions. [2023-08-30 14:48:46,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 16 transitions, 81 flow [2023-08-30 14:48:46,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 16 transitions, 80 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:46,211 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 50 flow [2023-08-30 14:48:46,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=34, PETRI_TRANSITIONS=16} [2023-08-30 14:48:46,212 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -26 predicate places. [2023-08-30 14:48:46,212 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 50 flow [2023-08-30 14:48:46,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:48:46,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:48:46,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 14:48:46,213 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:48:46,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:48:46,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1555375050, now seen corresponding path program 1 times [2023-08-30 14:48:46,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:48:46,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754689340] [2023-08-30 14:48:46,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:48:46,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:48:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:48:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 14:48:46,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:48:46,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754689340] [2023-08-30 14:48:46,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754689340] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:48:46,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:48:46,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:48:46,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107236596] [2023-08-30 14:48:46,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:48:46,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:48:46,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:48:46,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:48:46,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:48:46,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 887 [2023-08-30 14:48:46,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:48:46,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 887 [2023-08-30 14:48:46,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:48:46,278 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2023-08-30 14:48:46,278 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:48:46,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 78 events. 37/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 178. Up to 78 conditions per place. [2023-08-30 14:48:46,278 INFO L137 encePairwiseOnDemand]: 884/887 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-30 14:48:46,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 14 transitions, 74 flow [2023-08-30 14:48:46,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:48:46,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:48:46,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1087 transitions. [2023-08-30 14:48:46,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40849304772641865 [2023-08-30 14:48:46,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1087 transitions. [2023-08-30 14:48:46,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1087 transitions. [2023-08-30 14:48:46,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:48:46,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1087 transitions. [2023-08-30 14:48:46,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.3333333333333) internal successors, (1087), 3 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,286 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 50 flow. Second operand 3 states and 1087 transitions. [2023-08-30 14:48:46,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 14 transitions, 74 flow [2023-08-30 14:48:46,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 14 transitions, 73 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 14:48:46,286 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-08-30 14:48:46,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-08-30 14:48:46,287 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -27 predicate places. [2023-08-30 14:48:46,287 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-08-30 14:48:46,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 14:48:46,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2023-08-30 14:48:46,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2023-08-30 14:48:46,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2023-08-30 14:48:46,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2023-08-30 14:48:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2023-08-30 14:48:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2023-08-30 14:48:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2023-08-30 14:48:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2023-08-30 14:48:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2023-08-30 14:48:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2023-08-30 14:48:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2023-08-30 14:48:46,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2023-08-30 14:48:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2023-08-30 14:48:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2023-08-30 14:48:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2023-08-30 14:48:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2023-08-30 14:48:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2023-08-30 14:48:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2023-08-30 14:48:46,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2023-08-30 14:48:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2023-08-30 14:48:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2023-08-30 14:48:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2023-08-30 14:48:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2023-08-30 14:48:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2023-08-30 14:48:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2023-08-30 14:48:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2023-08-30 14:48:46,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2023-08-30 14:48:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2023-08-30 14:48:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2023-08-30 14:48:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2023-08-30 14:48:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2023-08-30 14:48:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2023-08-30 14:48:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2023-08-30 14:48:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2023-08-30 14:48:46,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2023-08-30 14:48:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2023-08-30 14:48:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2023-08-30 14:48:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2023-08-30 14:48:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2023-08-30 14:48:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2023-08-30 14:48:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2023-08-30 14:48:46,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2023-08-30 14:48:46,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2023-08-30 14:48:46,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2023-08-30 14:48:46,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2023-08-30 14:48:46,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2023-08-30 14:48:46,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2023-08-30 14:48:46,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2023-08-30 14:48:46,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2023-08-30 14:48:46,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2023-08-30 14:48:46,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2023-08-30 14:48:46,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2023-08-30 14:48:46,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2023-08-30 14:48:46,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2023-08-30 14:48:46,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2023-08-30 14:48:46,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2023-08-30 14:48:46,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2023-08-30 14:48:46,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2023-08-30 14:48:46,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2023-08-30 14:48:46,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2023-08-30 14:48:46,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2023-08-30 14:48:46,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2023-08-30 14:48:46,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2023-08-30 14:48:46,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2023-08-30 14:48:46,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2023-08-30 14:48:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2023-08-30 14:48:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2023-08-30 14:48:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2023-08-30 14:48:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2023-08-30 14:48:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2023-08-30 14:48:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2023-08-30 14:48:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2023-08-30 14:48:46,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2023-08-30 14:48:46,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2023-08-30 14:48:46,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2023-08-30 14:48:46,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 14:48:46,299 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:48:46,302 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 14:48:46,303 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 14:48:46,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 02:48:46 BasicIcfg [2023-08-30 14:48:46,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 14:48:46,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 14:48:46,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 14:48:46,305 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 14:48:46,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:48:13" (3/4) ... [2023-08-30 14:48:46,307 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 14:48:46,310 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 14:48:46,311 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 14:48:46,311 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-30 14:48:46,313 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-30 14:48:46,313 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 14:48:46,314 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 14:48:46,314 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 14:48:46,334 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 14:48:46,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 14:48:46,334 INFO L158 Benchmark]: Toolchain (without parser) took 33712.27ms. Allocated memory was 86.0MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 63.4MB in the beginning and 1.0GB in the end (delta: -963.7MB). Peak memory consumption was 193.3MB. Max. memory is 16.1GB. [2023-08-30 14:48:46,334 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:48:46,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.09ms. Allocated memory is still 86.0MB. Free memory was 63.2MB in the beginning and 51.6MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 14:48:46,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.43ms. Allocated memory is still 86.0MB. Free memory was 51.6MB in the beginning and 48.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 14:48:46,335 INFO L158 Benchmark]: Boogie Preprocessor took 43.68ms. Allocated memory is still 86.0MB. Free memory was 48.8MB in the beginning and 47.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:48:46,335 INFO L158 Benchmark]: RCFGBuilder took 582.16ms. Allocated memory is still 86.0MB. Free memory was 47.0MB in the beginning and 43.8MB in the end (delta: 3.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2023-08-30 14:48:46,336 INFO L158 Benchmark]: TraceAbstraction took 32788.80ms. Allocated memory was 86.0MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 43.0MB in the beginning and 1.0GB in the end (delta: -988.3MB). Peak memory consumption was 167.4MB. Max. memory is 16.1GB. [2023-08-30 14:48:46,336 INFO L158 Benchmark]: Witness Printer took 28.90ms. Allocated memory is still 1.2GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 14:48:46,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.09ms. Allocated memory is still 86.0MB. Free memory was 63.2MB in the beginning and 51.6MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.43ms. Allocated memory is still 86.0MB. Free memory was 51.6MB in the beginning and 48.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.68ms. Allocated memory is still 86.0MB. Free memory was 48.8MB in the beginning and 47.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 582.16ms. Allocated memory is still 86.0MB. Free memory was 47.0MB in the beginning and 43.8MB in the end (delta: 3.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * TraceAbstraction took 32788.80ms. Allocated memory was 86.0MB in the beginning and 1.2GB in the end (delta: 1.2GB). Free memory was 43.0MB in the beginning and 1.0GB in the end (delta: -988.3MB). Peak memory consumption was 167.4MB. Max. memory is 16.1GB. * Witness Printer took 28.90ms. Allocated memory is still 1.2GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.6s, 344 PlacesBefore, 60 PlacesAfterwards, 358 TransitionsBefore, 50 TransitionsAfterwards, 56238 CoEnabledTransitionPairs, 10 FixpointIterations, 62 TrivialSequentialCompositions, 359 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 63 ConcurrentYvCompositions, 24 ChoiceCompositions, 508 TotalNumberOfCompositions, 55616 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55616, independent: 55616, independent conditional: 0, independent unconditional: 55616, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 32445, independent: 32445, independent conditional: 0, independent unconditional: 32445, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55616, independent: 23171, independent conditional: 0, independent unconditional: 23171, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 32445, unknown conditional: 0, unknown unconditional: 32445] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 159, Positive conditional cache size: 0, Positive unconditional cache size: 159, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: 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 - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: 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 - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: 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 - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: 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 - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: 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 - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: 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 - PositiveResult [Line: 96]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 96]: 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, 610 locations, 75 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: 32.6s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 26.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 292 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 14 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, InterpolantAutomatonStates: 38, 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, 0.4s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 14:48:46,358 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