./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/chl-match-subst.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-subst.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 3c2ccb27a3ce50ce458a10a4aa8fbbd4d9c9d88060b8c7df98385ed8946afbfa --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 14:47:06,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 14:47:06,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 14:47:06,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 14:47:06,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 14:47:06,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 14:47:06,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 14:47:06,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 14:47:06,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 14:47:06,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 14:47:06,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 14:47:06,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 14:47:06,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 14:47:06,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 14:47:06,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 14:47:06,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 14:47:06,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 14:47:06,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 14:47:06,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 14:47:06,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 14:47:06,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 14:47:07,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 14:47:07,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 14:47:07,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 14:47:07,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 14:47:07,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 14:47:07,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 14:47:07,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 14:47:07,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 14:47:07,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 14:47:07,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 14:47:07,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 14:47:07,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 14:47:07,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 14:47:07,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 14:47:07,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 14:47:07,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 14:47:07,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 14:47:07,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 14:47:07,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 14:47:07,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 14:47:07,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 14:47:07,046 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 14:47:07,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 14:47:07,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 14:47:07,047 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 14:47:07,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 14:47:07,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 14:47:07,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 14:47:07,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 14:47:07,049 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 14:47:07,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 14:47:07,050 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 14:47:07,050 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 14:47:07,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 14:47:07,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 14:47:07,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 14:47:07,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 14:47:07,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 14:47:07,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 14:47:07,051 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 14:47:07,051 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 14:47:07,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 14:47:07,051 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 14:47:07,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 14:47:07,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 14:47:07,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 14:47:07,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 14:47:07,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:47:07,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 14:47:07,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 14:47:07,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 14:47:07,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 14:47:07,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 14:47:07,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 14:47:07,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 14:47:07,053 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 14:47:07,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 14:47:07,054 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 14:47:07,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c2ccb27a3ce50ce458a10a4aa8fbbd4d9c9d88060b8c7df98385ed8946afbfa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 14:47:07,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 14:47:07,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 14:47:07,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 14:47:07,305 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 14:47:07,305 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 14:47:07,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-08-30 14:47:08,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 14:47:08,397 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 14:47:08,398 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-match-subst.wvr.c [2023-08-30 14:47:08,403 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe4269b7/b20bcb1aa4884b17a23164701bf33a88/FLAG2411ec617 [2023-08-30 14:47:08,412 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fe4269b7/b20bcb1aa4884b17a23164701bf33a88 [2023-08-30 14:47:08,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 14:47:08,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 14:47:08,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 14:47:08,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 14:47:08,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 14:47:08,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a78813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08, skipping insertion in model container [2023-08-30 14:47:08,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 14:47:08,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 14:47:08,527 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-subst.wvr.c[3017,3030] [2023-08-30 14:47:08,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:47:08,540 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 14:47:08,558 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-subst.wvr.c[3017,3030] [2023-08-30 14:47:08,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 14:47:08,570 INFO L208 MainTranslator]: Completed translation [2023-08-30 14:47:08,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08 WrapperNode [2023-08-30 14:47:08,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 14:47:08,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 14:47:08,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 14:47:08,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 14:47:08,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,598 INFO L138 Inliner]: procedures = 23, calls = 34, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 299 [2023-08-30 14:47:08,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 14:47:08,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 14:47:08,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 14:47:08,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 14:47:08,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 14:47:08,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 14:47:08,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 14:47:08,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 14:47:08,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (1/1) ... [2023-08-30 14:47:08,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 14:47:08,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 14:47:08,654 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 14:47:08,672 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 14:47:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 14:47:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 14:47:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 14:47:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 14:47:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 14:47:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 14:47:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 14:47:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 14:47:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 14:47:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 14:47:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 14:47:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 14:47:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 14:47:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 14:47:08,686 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 14:47:08,835 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 14:47:08,836 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 14:47:09,220 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 14:47:09,228 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 14:47:09,228 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 14:47:09,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:47:09 BoogieIcfgContainer [2023-08-30 14:47:09,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 14:47:09,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 14:47:09,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 14:47:09,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 14:47:09,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 02:47:08" (1/3) ... [2023-08-30 14:47:09,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606e0745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:47:09, skipping insertion in model container [2023-08-30 14:47:09,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 02:47:08" (2/3) ... [2023-08-30 14:47:09,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606e0745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 02:47:09, skipping insertion in model container [2023-08-30 14:47:09,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:47:09" (3/3) ... [2023-08-30 14:47:09,235 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-subst.wvr.c [2023-08-30 14:47:09,240 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 14:47:09,245 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 14:47:09,246 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-30 14:47:09,246 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 14:47:09,348 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-30 14:47:09,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 385 transitions, 794 flow [2023-08-30 14:47:09,467 INFO L130 PetriNetUnfolder]: 26/382 cut-off events. [2023-08-30 14:47:09,467 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-30 14:47:09,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 382 events. 26/382 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 891 event pairs, 0 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2023-08-30 14:47:09,479 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 385 transitions, 794 flow [2023-08-30 14:47:09,503 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 344 places, 358 transitions, 731 flow [2023-08-30 14:47:09,506 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 14:47:09,518 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 358 transitions, 731 flow [2023-08-30 14:47:09,522 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 358 transitions, 731 flow [2023-08-30 14:47:09,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 344 places, 358 transitions, 731 flow [2023-08-30 14:47:09,589 INFO L130 PetriNetUnfolder]: 24/358 cut-off events. [2023-08-30 14:47:09,589 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 14:47:09,592 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 886 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 14:47:09,608 INFO L119 LiptonReduction]: Number of co-enabled transitions 56238 [2023-08-30 14:47:39,297 INFO L134 LiptonReduction]: Checked pairs total: 55424 [2023-08-30 14:47:39,297 INFO L136 LiptonReduction]: Total number of compositions: 511 [2023-08-30 14:47:39,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 14:47:39,311 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;@2b44a85d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 14:47:39,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2023-08-30 14:47:39,313 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 14:47:39,313 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 14:47:39,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:39,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:39,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:39,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:39,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1649793, now seen corresponding path program 1 times [2023-08-30 14:47:39,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:39,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221342765] [2023-08-30 14:47:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:39,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:39,427 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 14:47:39,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:39,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221342765] [2023-08-30 14:47:39,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221342765] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:39,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:39,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:39,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637316486] [2023-08-30 14:47:39,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:39,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 14:47:39,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:39,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 14:47:39,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 14:47:39,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 896 [2023-08-30 14:47:39,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 365.5) internal successors, (731), 2 states have internal predecessors, (731), 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 14:47:39,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:39,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 896 [2023-08-30 14:47:39,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:40,685 INFO L130 PetriNetUnfolder]: 5157/7598 cut-off events. [2023-08-30 14:47:40,685 INFO L131 PetriNetUnfolder]: For 299/299 co-relation queries the response was YES. [2023-08-30 14:47:40,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15533 conditions, 7598 events. 5157/7598 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 45310 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 14:47:40,713 INFO L137 encePairwiseOnDemand]: 884/896 looper letters, 38 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2023-08-30 14:47:40,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 167 flow [2023-08-30 14:47:40,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 14:47:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 14:47:40,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 778 transitions. [2023-08-30 14:47:40,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4341517857142857 [2023-08-30 14:47:40,727 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 778 transitions. [2023-08-30 14:47:40,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 778 transitions. [2023-08-30 14:47:40,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:40,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 778 transitions. [2023-08-30 14:47:40,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 389.0) internal successors, (778), 2 states have internal predecessors, (778), 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 14:47:40,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 896.0) internal successors, (2688), 3 states have internal predecessors, (2688), 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 14:47:40,743 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 896.0) internal successors, (2688), 3 states have internal predecessors, (2688), 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 14:47:40,744 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 115 flow. Second operand 2 states and 778 transitions. [2023-08-30 14:47:40,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 167 flow [2023-08-30 14:47:40,754 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 14:47:40,756 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 82 flow [2023-08-30 14:47:40,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:40,759 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -16 predicate places. [2023-08-30 14:47:40,759 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 82 flow [2023-08-30 14:47:40,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 365.5) internal successors, (731), 2 states have internal predecessors, (731), 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 14:47:40,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:40,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:40,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 14:47:40,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:40,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:40,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1649913, now seen corresponding path program 1 times [2023-08-30 14:47:40,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:40,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692564848] [2023-08-30 14:47:40,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:40,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:40,896 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 14:47:40,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:40,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692564848] [2023-08-30 14:47:40,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692564848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:40,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:40,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:40,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782665736] [2023-08-30 14:47:40,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:40,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:40,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:40,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:40,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:40,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:40,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 38 transitions, 82 flow. Second operand has 3 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 14:47:40,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:40,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:40,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:41,956 INFO L130 PetriNetUnfolder]: 4205/6222 cut-off events. [2023-08-30 14:47:41,956 INFO L131 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2023-08-30 14:47:41,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12637 conditions, 6222 events. 4205/6222 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 810. Compared 36280 event pairs, 4205 based on Foata normal form. 0/1810 useless extension candidates. Maximal degree in co-relation 12634. Up to 6222 conditions per place. [2023-08-30 14:47:41,979 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 35 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-08-30 14:47:41,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 36 transitions, 150 flow [2023-08-30 14:47:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:41,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:41,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1124 transitions. [2023-08-30 14:47:41,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4181547619047619 [2023-08-30 14:47:41,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1124 transitions. [2023-08-30 14:47:41,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1124 transitions. [2023-08-30 14:47:41,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:41,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1124 transitions. [2023-08-30 14:47:41,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 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 14:47:41,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:41,990 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:41,990 INFO L175 Difference]: Start difference. First operand has 44 places, 38 transitions, 82 flow. Second operand 3 states and 1124 transitions. [2023-08-30 14:47:41,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 36 transitions, 150 flow [2023-08-30 14:47:41,990 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 14:47:41,991 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 80 flow [2023-08-30 14:47:41,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:41,992 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -16 predicate places. [2023-08-30 14:47:41,992 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 80 flow [2023-08-30 14:47:41,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:41,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:41,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:41,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 14:47:41,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:41,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:41,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1649935, now seen corresponding path program 1 times [2023-08-30 14:47:41,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:41,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887049394] [2023-08-30 14:47:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:41,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:42,056 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 14:47:42,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:42,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887049394] [2023-08-30 14:47:42,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887049394] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:42,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:42,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:42,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625095377] [2023-08-30 14:47:42,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:42,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:42,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:42,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:42,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:42,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:42,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 80 flow. Second operand has 3 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 14:47:42,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:42,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:42,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:42,923 INFO L130 PetriNetUnfolder]: 3349/4982 cut-off events. [2023-08-30 14:47:42,923 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-08-30 14:47:42,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10138 conditions, 4982 events. 3349/4982 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 28083 event pairs, 3349 based on Foata normal form. 0/1518 useless extension candidates. Maximal degree in co-relation 10134. Up to 4982 conditions per place. [2023-08-30 14:47:42,943 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 33 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-08-30 14:47:42,944 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 144 flow [2023-08-30 14:47:42,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:42,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1122 transitions. [2023-08-30 14:47:42,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4174107142857143 [2023-08-30 14:47:42,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1122 transitions. [2023-08-30 14:47:42,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1122 transitions. [2023-08-30 14:47:42,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:42,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1122 transitions. [2023-08-30 14:47:42,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 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 14:47:42,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:42,957 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:42,957 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 80 flow. Second operand 3 states and 1122 transitions. [2023-08-30 14:47:42,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 144 flow [2023-08-30 14:47:42,958 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 14:47:42,960 INFO L231 Difference]: Finished difference. Result has 43 places, 34 transitions, 77 flow [2023-08-30 14:47:42,960 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:42,961 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-08-30 14:47:42,963 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 34 transitions, 77 flow [2023-08-30 14:47:42,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:42,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:42,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:42,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 14:47:42,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:42,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1649936, now seen corresponding path program 1 times [2023-08-30 14:47:42,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:42,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654695938] [2023-08-30 14:47:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:42,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:43,066 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 14:47:43,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:43,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654695938] [2023-08-30 14:47:43,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654695938] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:43,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:43,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:43,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125760751] [2023-08-30 14:47:43,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:43,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:43,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:43,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:43,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:43,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:43,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 34 transitions, 77 flow. Second operand has 3 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 14:47:43,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:43,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:43,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:43,631 INFO L130 PetriNetUnfolder]: 2589/3878 cut-off events. [2023-08-30 14:47:43,631 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2023-08-30 14:47:43,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7910 conditions, 3878 events. 2589/3878 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 21129 event pairs, 2589 based on Foata normal form. 0/1250 useless extension candidates. Maximal degree in co-relation 7906. Up to 3878 conditions per place. [2023-08-30 14:47:43,640 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 31 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2023-08-30 14:47:43,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 32 transitions, 137 flow [2023-08-30 14:47:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:43,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:43,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1120 transitions. [2023-08-30 14:47:43,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2023-08-30 14:47:43,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1120 transitions. [2023-08-30 14:47:43,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1120 transitions. [2023-08-30 14:47:43,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:43,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1120 transitions. [2023-08-30 14:47:43,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 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 14:47:43,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:43,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:43,649 INFO L175 Difference]: Start difference. First operand has 43 places, 34 transitions, 77 flow. Second operand 3 states and 1120 transitions. [2023-08-30 14:47:43,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 32 transitions, 137 flow [2023-08-30 14:47:43,650 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 14:47:43,650 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 74 flow [2023-08-30 14:47:43,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:43,651 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-08-30 14:47:43,651 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 74 flow [2023-08-30 14:47:43,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:43,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:43,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:43,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 14:47:43,652 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:43,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:43,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1649794, now seen corresponding path program 1 times [2023-08-30 14:47:43,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:43,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066993943] [2023-08-30 14:47:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:43,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:43,672 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 14:47:43,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:43,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066993943] [2023-08-30 14:47:43,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066993943] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:43,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:43,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:43,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53992565] [2023-08-30 14:47:43,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:43,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:43,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:43,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:43,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:43,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:43,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 74 flow. Second operand has 3 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 14:47:43,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:43,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:43,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:44,223 INFO L130 PetriNetUnfolder]: 2001/3018 cut-off events. [2023-08-30 14:47:44,223 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2023-08-30 14:47:44,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6158 conditions, 3018 events. 2001/3018 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 15875 event pairs, 2001 based on Foata normal form. 0/1024 useless extension candidates. Maximal degree in co-relation 6154. Up to 3018 conditions per place. [2023-08-30 14:47:44,231 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 29 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2023-08-30 14:47:44,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 130 flow [2023-08-30 14:47:44,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:44,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:44,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1118 transitions. [2023-08-30 14:47:44,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41592261904761907 [2023-08-30 14:47:44,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1118 transitions. [2023-08-30 14:47:44,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1118 transitions. [2023-08-30 14:47:44,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:44,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1118 transitions. [2023-08-30 14:47:44,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 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 14:47:44,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:44,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:44,242 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 74 flow. Second operand 3 states and 1118 transitions. [2023-08-30 14:47:44,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 130 flow [2023-08-30 14:47:44,242 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 14:47:44,243 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 71 flow [2023-08-30 14:47:44,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:44,244 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -19 predicate places. [2023-08-30 14:47:44,244 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 71 flow [2023-08-30 14:47:44,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:44,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:44,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:44,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 14:47:44,245 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:44,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:44,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1649937, now seen corresponding path program 1 times [2023-08-30 14:47:44,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:44,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537026514] [2023-08-30 14:47:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:44,270 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 14:47:44,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:44,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537026514] [2023-08-30 14:47:44,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537026514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:44,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:44,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:44,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43943606] [2023-08-30 14:47:44,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:44,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:44,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:44,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:44,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:44,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:44,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 71 flow. Second operand has 3 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 14:47:44,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:44,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:44,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:44,752 INFO L130 PetriNetUnfolder]: 1449/2210 cut-off events. [2023-08-30 14:47:44,752 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-08-30 14:47:44,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4524 conditions, 2210 events. 1449/2210 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 11072 event pairs, 1449 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 4520. Up to 2210 conditions per place. [2023-08-30 14:47:44,759 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 27 selfloop transitions, 1 changer transitions 0/28 dead transitions. [2023-08-30 14:47:44,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 28 transitions, 123 flow [2023-08-30 14:47:44,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:44,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1116 transitions. [2023-08-30 14:47:44,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41517857142857145 [2023-08-30 14:47:44,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1116 transitions. [2023-08-30 14:47:44,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1116 transitions. [2023-08-30 14:47:44,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:44,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1116 transitions. [2023-08-30 14:47:44,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 372.0) internal successors, (1116), 3 states have internal predecessors, (1116), 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 14:47:44,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:44,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:44,768 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 71 flow. Second operand 3 states and 1116 transitions. [2023-08-30 14:47:44,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 28 transitions, 123 flow [2023-08-30 14:47:44,768 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 14:47:44,769 INFO L231 Difference]: Finished difference. Result has 40 places, 28 transitions, 68 flow [2023-08-30 14:47:44,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:44,769 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -20 predicate places. [2023-08-30 14:47:44,770 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 68 flow [2023-08-30 14:47:44,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:44,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:44,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:44,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 14:47:44,771 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:44,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:44,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1649900, now seen corresponding path program 1 times [2023-08-30 14:47:44,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:44,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125917758] [2023-08-30 14:47:44,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:44,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:44,792 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 14:47:44,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:44,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125917758] [2023-08-30 14:47:44,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125917758] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:44,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:44,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:44,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468162374] [2023-08-30 14:47:44,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:44,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:44,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:44,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:44,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:44,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:44,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 68 flow. Second operand has 3 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 14:47:44,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:44,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:44,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:45,100 INFO L130 PetriNetUnfolder]: 1037/1602 cut-off events. [2023-08-30 14:47:45,101 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2023-08-30 14:47:45,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3282 conditions, 1602 events. 1037/1602 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 7642 event pairs, 1037 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 3278. Up to 1602 conditions per place. [2023-08-30 14:47:45,105 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 25 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2023-08-30 14:47:45,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 26 transitions, 116 flow [2023-08-30 14:47:45,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:45,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1114 transitions. [2023-08-30 14:47:45,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41443452380952384 [2023-08-30 14:47:45,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1114 transitions. [2023-08-30 14:47:45,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1114 transitions. [2023-08-30 14:47:45,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:45,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1114 transitions. [2023-08-30 14:47:45,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 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 14:47:45,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,114 INFO L175 Difference]: Start difference. First operand has 40 places, 28 transitions, 68 flow. Second operand 3 states and 1114 transitions. [2023-08-30 14:47:45,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 26 transitions, 116 flow [2023-08-30 14:47:45,115 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 14:47:45,115 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 65 flow [2023-08-30 14:47:45,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:45,116 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -21 predicate places. [2023-08-30 14:47:45,116 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 65 flow [2023-08-30 14:47:45,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:45,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:45,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:45,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 14:47:45,117 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:45,117 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:45,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1649903, now seen corresponding path program 1 times [2023-08-30 14:47:45,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:45,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894801490] [2023-08-30 14:47:45,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:45,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:45,146 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 14:47:45,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:45,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894801490] [2023-08-30 14:47:45,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894801490] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:45,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:45,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:45,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037452633] [2023-08-30 14:47:45,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:45,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:45,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:45,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:45,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:45,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:45,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 65 flow. Second operand has 3 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 14:47:45,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:45,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:45,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:45,384 INFO L130 PetriNetUnfolder]: 689/1086 cut-off events. [2023-08-30 14:47:45,385 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 14:47:45,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1086 events. 689/1086 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 4885 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 14:47:45,388 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-08-30 14:47:45,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 24 transitions, 109 flow [2023-08-30 14:47:45,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:45,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1112 transitions. [2023-08-30 14:47:45,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41369047619047616 [2023-08-30 14:47:45,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1112 transitions. [2023-08-30 14:47:45,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1112 transitions. [2023-08-30 14:47:45,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:45,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1112 transitions. [2023-08-30 14:47:45,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 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 14:47:45,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,396 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 65 flow. Second operand 3 states and 1112 transitions. [2023-08-30 14:47:45,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 24 transitions, 109 flow [2023-08-30 14:47:45,398 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 14:47:45,398 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 62 flow [2023-08-30 14:47:45,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:45,400 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -22 predicate places. [2023-08-30 14:47:45,400 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 62 flow [2023-08-30 14:47:45,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:45,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:45,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 14:47:45,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 14:47:45,401 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:45,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:45,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1649902, now seen corresponding path program 1 times [2023-08-30 14:47:45,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:45,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093776169] [2023-08-30 14:47:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:45,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:45,444 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 14:47:45,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:45,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093776169] [2023-08-30 14:47:45,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093776169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:45,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:45,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:45,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692054889] [2023-08-30 14:47:45,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:45,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:45,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:45,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:45,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:45,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 62 flow. Second operand has 3 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 14:47:45,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:45,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:45,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:45,619 INFO L130 PetriNetUnfolder]: 405/662 cut-off events. [2023-08-30 14:47:45,619 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-08-30 14:47:45,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1362 conditions, 662 events. 405/662 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2726 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 14:47:45,621 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2023-08-30 14:47:45,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 22 transitions, 102 flow [2023-08-30 14:47:45,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1110 transitions. [2023-08-30 14:47:45,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41294642857142855 [2023-08-30 14:47:45,624 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1110 transitions. [2023-08-30 14:47:45,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1110 transitions. [2023-08-30 14:47:45,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:45,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1110 transitions. [2023-08-30 14:47:45,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 370.0) internal successors, (1110), 3 states have internal predecessors, (1110), 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 14:47:45,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,634 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 62 flow. Second operand 3 states and 1110 transitions. [2023-08-30 14:47:45,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 22 transitions, 102 flow [2023-08-30 14:47:45,634 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 14:47:45,634 INFO L231 Difference]: Finished difference. Result has 37 places, 22 transitions, 59 flow [2023-08-30 14:47:45,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:45,635 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -23 predicate places. [2023-08-30 14:47:45,635 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 22 transitions, 59 flow [2023-08-30 14:47:45,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:45,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:45,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:47:45,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 14:47:45,635 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:45,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:45,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1585416425, now seen corresponding path program 1 times [2023-08-30 14:47:45,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:45,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809592889] [2023-08-30 14:47:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:45,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:45,662 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 14:47:45,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:45,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809592889] [2023-08-30 14:47:45,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809592889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:45,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:45,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:45,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898074281] [2023-08-30 14:47:45,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:45,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:45,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:45,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:45,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:45,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:45,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 22 transitions, 59 flow. Second operand has 3 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 14:47:45,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:45,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:45,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:45,799 INFO L130 PetriNetUnfolder]: 277/462 cut-off events. [2023-08-30 14:47:45,799 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-30 14:47:45,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 462 events. 277/462 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 1756 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 14:47:45,800 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-08-30 14:47:45,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 20 transitions, 95 flow [2023-08-30 14:47:45,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:45,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1108 transitions. [2023-08-30 14:47:45,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41220238095238093 [2023-08-30 14:47:45,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1108 transitions. [2023-08-30 14:47:45,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1108 transitions. [2023-08-30 14:47:45,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:45,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1108 transitions. [2023-08-30 14:47:45,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 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 14:47:45,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,807 INFO L175 Difference]: Start difference. First operand has 37 places, 22 transitions, 59 flow. Second operand 3 states and 1108 transitions. [2023-08-30 14:47:45,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 20 transitions, 95 flow [2023-08-30 14:47:45,808 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 14:47:45,808 INFO L231 Difference]: Finished difference. Result has 36 places, 20 transitions, 56 flow [2023-08-30 14:47:45,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:45,809 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -24 predicate places. [2023-08-30 14:47:45,809 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 56 flow [2023-08-30 14:47:45,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:45,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:45,809 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:47:45,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 14:47:45,810 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:45,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:45,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1585416426, now seen corresponding path program 1 times [2023-08-30 14:47:45,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:45,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554247528] [2023-08-30 14:47:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:45,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:45,887 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 14:47:45,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:45,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554247528] [2023-08-30 14:47:45,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554247528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:45,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:45,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:45,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204360741] [2023-08-30 14:47:45,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:45,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:45,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:45,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:45,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:45,892 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:45,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 56 flow. Second operand has 3 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 14:47:45,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:45,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:45,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:45,979 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2023-08-30 14:47:45,979 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-30 14:47:45,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 298 events. 173/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1002 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 14:47:45,980 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-30 14:47:45,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 18 transitions, 88 flow [2023-08-30 14:47:45,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:45,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1106 transitions. [2023-08-30 14:47:45,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4114583333333333 [2023-08-30 14:47:45,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1106 transitions. [2023-08-30 14:47:45,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1106 transitions. [2023-08-30 14:47:45,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:45,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1106 transitions. [2023-08-30 14:47:45,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.6666666666667) internal successors, (1106), 3 states have internal predecessors, (1106), 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 14:47:45,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:45,987 INFO L175 Difference]: Start difference. First operand has 36 places, 20 transitions, 56 flow. Second operand 3 states and 1106 transitions. [2023-08-30 14:47:45,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 18 transitions, 88 flow [2023-08-30 14:47:45,988 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 14:47:45,988 INFO L231 Difference]: Finished difference. Result has 35 places, 18 transitions, 53 flow [2023-08-30 14:47:45,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:45,989 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -25 predicate places. [2023-08-30 14:47:45,989 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 18 transitions, 53 flow [2023-08-30 14:47:45,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:45,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:45,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:47:45,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 14:47:45,989 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:45,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:45,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1585416428, now seen corresponding path program 1 times [2023-08-30 14:47:45,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:45,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890238705] [2023-08-30 14:47:45,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:45,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:46,021 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 14:47:46,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:46,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890238705] [2023-08-30 14:47:46,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890238705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:46,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:46,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:46,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231399016] [2023-08-30 14:47:46,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:46,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:46,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:46,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:46,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:46,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:46,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 18 transitions, 53 flow. Second operand has 3 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 14:47:46,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:46,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:46,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:46,098 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2023-08-30 14:47:46,098 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 14:47:46,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 170 events. 93/170 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 469 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 14:47:46,099 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2023-08-30 14:47:46,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 16 transitions, 81 flow [2023-08-30 14:47:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:46,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:46,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1104 transitions. [2023-08-30 14:47:46,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2023-08-30 14:47:46,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1104 transitions. [2023-08-30 14:47:46,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1104 transitions. [2023-08-30 14:47:46,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:46,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1104 transitions. [2023-08-30 14:47:46,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 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 14:47:46,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:46,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:46,106 INFO L175 Difference]: Start difference. First operand has 35 places, 18 transitions, 53 flow. Second operand 3 states and 1104 transitions. [2023-08-30 14:47:46,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 16 transitions, 81 flow [2023-08-30 14:47:46,106 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 14:47:46,106 INFO L231 Difference]: Finished difference. Result has 34 places, 16 transitions, 50 flow [2023-08-30 14:47:46,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:46,107 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -26 predicate places. [2023-08-30 14:47:46,107 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 50 flow [2023-08-30 14:47:46,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:46,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 14:47:46,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 14:47:46,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 14:47:46,108 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2023-08-30 14:47:46,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 14:47:46,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1585416412, now seen corresponding path program 1 times [2023-08-30 14:47:46,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 14:47:46,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705339270] [2023-08-30 14:47:46,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 14:47:46,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 14:47:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 14:47:46,135 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 14:47:46,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 14:47:46,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705339270] [2023-08-30 14:47:46,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705339270] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 14:47:46,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 14:47:46,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 14:47:46,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648164434] [2023-08-30 14:47:46,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 14:47:46,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 14:47:46,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 14:47:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 14:47:46,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 14:47:46,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 896 [2023-08-30 14:47:46,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 50 flow. Second operand has 3 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 14:47:46,141 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 14:47:46,141 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 896 [2023-08-30 14:47:46,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 14:47:46,180 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2023-08-30 14:47:46,180 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 14:47:46,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 78 events. 37/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 151 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 14:47:46,180 INFO L137 encePairwiseOnDemand]: 893/896 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2023-08-30 14:47:46,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 14 transitions, 74 flow [2023-08-30 14:47:46,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 14:47:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 14:47:46,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1102 transitions. [2023-08-30 14:47:46,183 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4099702380952381 [2023-08-30 14:47:46,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1102 transitions. [2023-08-30 14:47:46,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1102 transitions. [2023-08-30 14:47:46,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 14:47:46,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1102 transitions. [2023-08-30 14:47:46,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 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 14:47:46,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:46,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 896.0) internal successors, (3584), 4 states have internal predecessors, (3584), 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 14:47:46,187 INFO L175 Difference]: Start difference. First operand has 34 places, 16 transitions, 50 flow. Second operand 3 states and 1102 transitions. [2023-08-30 14:47:46,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 14 transitions, 74 flow [2023-08-30 14:47:46,188 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 14:47:46,188 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-08-30 14:47:46,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=896, 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 14:47:46,188 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -27 predicate places. [2023-08-30 14:47:46,189 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-08-30 14:47:46,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 14:47:46,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 75 remaining) [2023-08-30 14:47:46,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 75 remaining) [2023-08-30 14:47:46,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 75 remaining) [2023-08-30 14:47:46,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 75 remaining) [2023-08-30 14:47:46,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 75 remaining) [2023-08-30 14:47:46,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 75 remaining) [2023-08-30 14:47:46,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 75 remaining) [2023-08-30 14:47:46,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 75 remaining) [2023-08-30 14:47:46,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 75 remaining) [2023-08-30 14:47:46,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 75 remaining) [2023-08-30 14:47:46,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 75 remaining) [2023-08-30 14:47:46,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 75 remaining) [2023-08-30 14:47:46,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 75 remaining) [2023-08-30 14:47:46,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 75 remaining) [2023-08-30 14:47:46,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 75 remaining) [2023-08-30 14:47:46,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 75 remaining) [2023-08-30 14:47:46,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 75 remaining) [2023-08-30 14:47:46,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 75 remaining) [2023-08-30 14:47:46,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 75 remaining) [2023-08-30 14:47:46,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 75 remaining) [2023-08-30 14:47:46,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 75 remaining) [2023-08-30 14:47:46,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 75 remaining) [2023-08-30 14:47:46,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 75 remaining) [2023-08-30 14:47:46,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 75 remaining) [2023-08-30 14:47:46,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 75 remaining) [2023-08-30 14:47:46,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 75 remaining) [2023-08-30 14:47:46,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 75 remaining) [2023-08-30 14:47:46,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 75 remaining) [2023-08-30 14:47:46,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 75 remaining) [2023-08-30 14:47:46,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 75 remaining) [2023-08-30 14:47:46,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 75 remaining) [2023-08-30 14:47:46,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 75 remaining) [2023-08-30 14:47:46,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 75 remaining) [2023-08-30 14:47:46,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 75 remaining) [2023-08-30 14:47:46,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 75 remaining) [2023-08-30 14:47:46,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 75 remaining) [2023-08-30 14:47:46,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 75 remaining) [2023-08-30 14:47:46,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 75 remaining) [2023-08-30 14:47:46,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 75 remaining) [2023-08-30 14:47:46,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 75 remaining) [2023-08-30 14:47:46,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 75 remaining) [2023-08-30 14:47:46,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 75 remaining) [2023-08-30 14:47:46,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 75 remaining) [2023-08-30 14:47:46,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 14:47:46,201 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 14:47:46,204 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 14:47:46,204 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 14:47:46,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 02:47:46 BasicIcfg [2023-08-30 14:47:46,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 14:47:46,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 14:47:46,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 14:47:46,207 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 14:47:46,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 02:47:09" (3/4) ... [2023-08-30 14:47:46,209 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 14:47:46,212 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-30 14:47:46,212 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-30 14:47:46,212 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-30 14:47:46,215 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 14:47:46,215 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 14:47:46,215 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 14:47:46,216 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 14:47:46,239 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 14:47:46,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 14:47:46,239 INFO L158 Benchmark]: Toolchain (without parser) took 37824.91ms. Allocated memory was 96.5MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 74.7MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 138.3MB. Max. memory is 16.1GB. [2023-08-30 14:47:46,239 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 14:47:46,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 155.67ms. Allocated memory is still 96.5MB. Free memory was 74.5MB in the beginning and 62.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 14:47:46,240 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.95ms. Allocated memory is still 96.5MB. Free memory was 62.8MB in the beginning and 60.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 14:47:46,240 INFO L158 Benchmark]: Boogie Preprocessor took 27.05ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 58.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 14:47:46,240 INFO L158 Benchmark]: RCFGBuilder took 603.42ms. Allocated memory is still 96.5MB. Free memory was 58.4MB in the beginning and 54.4MB in the end (delta: 4.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2023-08-30 14:47:46,240 INFO L158 Benchmark]: TraceAbstraction took 36975.28ms. Allocated memory was 96.5MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 53.8MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. [2023-08-30 14:47:46,240 INFO L158 Benchmark]: Witness Printer took 32.02ms. Allocated memory is still 1.9GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 14:47:46,241 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 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 155.67ms. Allocated memory is still 96.5MB. Free memory was 74.5MB in the beginning and 62.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.95ms. Allocated memory is still 96.5MB. Free memory was 62.8MB in the beginning and 60.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.05ms. Allocated memory is still 96.5MB. Free memory was 60.2MB in the beginning and 58.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 603.42ms. Allocated memory is still 96.5MB. Free memory was 58.4MB in the beginning and 54.4MB in the end (delta: 4.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 36975.28ms. Allocated memory was 96.5MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 53.8MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. * Witness Printer took 32.02ms. Allocated memory is still 1.9GB. Free memory was 1.7GB in the beginning and 1.7GB 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: 29.8s, 344 PlacesBefore, 60 PlacesAfterwards, 358 TransitionsBefore, 50 TransitionsAfterwards, 56238 CoEnabledTransitionPairs, 10 FixpointIterations, 62 TrivialSequentialCompositions, 360 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 65 ConcurrentYvCompositions, 24 ChoiceCompositions, 511 TotalNumberOfCompositions, 55424 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 55424, independent: 55424, independent conditional: 0, independent unconditional: 55424, 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: 32374, independent: 32374, independent conditional: 0, independent unconditional: 32374, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 55424, independent: 23050, independent conditional: 0, independent unconditional: 23050, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 32374, unknown conditional: 0, unknown unconditional: 32374] , 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: 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: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: 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: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: 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: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: 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: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: 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: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: 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: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: 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, 615 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: 36.8s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 29.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 292 mSDsluCounter, 22 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, 22 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 14:47:46,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE