./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/parallel-bluetooth.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 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 07:47:31,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:47:31,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:47:31,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:47:31,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:47:31,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:47:31,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:47:31,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:47:31,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:47:31,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:47:31,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:47:31,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:47:31,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:47:31,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:47:31,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:47:31,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:47:31,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:47:31,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:47:31,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:47:31,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:47:31,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:47:31,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:47:31,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:47:31,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:47:31,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:47:31,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:47:31,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:47:31,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:47:31,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:47:31,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:47:31,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:47:31,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:47:31,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:47:31,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:47:31,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:47:31,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:47:31,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:47:31,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:47:31,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:47:31,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:47:31,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:47:31,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:47:31,913 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:47:31,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:47:31,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:47:31,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:47:31,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:47:31,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:47:31,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:47:31,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:47:31,917 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:47:31,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:47:31,918 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:47:31,918 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:47:31,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:47:31,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:47:31,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:47:31,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:47:31,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:47:31,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:47:31,920 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:47:31,920 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:47:31,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:47:31,921 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:47:31,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:47:31,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:47:31,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:47:31,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:47:31,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:47:31,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:47:31,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:47:31,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:47:31,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:47:31,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:47:31,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:47:31,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:47:31,924 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:47:31,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:47:31,924 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:47:31,925 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75c86508b929748d0860a2261aae2f86897f25a70c1055933792f6abb004bc7e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:47:32,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:47:32,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:47:32,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:47:32,283 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:47:32,284 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:47:32,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2023-09-01 07:47:33,483 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:47:33,669 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:47:33,669 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c [2023-09-01 07:47:33,677 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5baff817/fa2542f01e644f5e943bf2b3424f0789/FLAGfb175719d [2023-09-01 07:47:33,689 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5baff817/fa2542f01e644f5e943bf2b3424f0789 [2023-09-01 07:47:33,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:47:33,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:47:33,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:47:33,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:47:33,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:47:33,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:33,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c715a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33, skipping insertion in model container [2023-09-01 07:47:33,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:33,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:47:33,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:47:33,910 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2023-09-01 07:47:33,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:47:33,924 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:47:33,963 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bluetooth.wvr.c[3134,3147] [2023-09-01 07:47:33,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:47:33,973 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 07:47:33,977 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 07:47:33,983 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:47:33,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33 WrapperNode [2023-09-01 07:47:33,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:47:33,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:47:33,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:47:33,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:47:33,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,043 INFO L138 Inliner]: procedures = 21, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 129 [2023-09-01 07:47:34,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:47:34,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:47:34,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:47:34,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:47:34,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:47:34,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:47:34,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:47:34,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:47:34,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (1/1) ... [2023-09-01 07:47:34,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:47:34,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:47:34,133 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) [2023-09-01 07:47:34,176 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 [2023-09-01 07:47:34,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:47:34,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-01 07:47:34,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-01 07:47:34,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-01 07:47:34,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-01 07:47:34,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:47:34,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:47:34,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:47:34,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 07:47:34,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 07:47:34,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:47:34,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:47:34,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 07:47:34,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:47:34,199 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 07:47:34,325 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:47:34,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:47:34,604 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:47:34,687 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:47:34,687 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 07:47:34,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:47:34 BoogieIcfgContainer [2023-09-01 07:47:34,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:47:34,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:47:34,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:47:34,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:47:34,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:47:33" (1/3) ... [2023-09-01 07:47:34,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0e9226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:47:34, skipping insertion in model container [2023-09-01 07:47:34,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:47:33" (2/3) ... [2023-09-01 07:47:34,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0e9226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:47:34, skipping insertion in model container [2023-09-01 07:47:34,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:47:34" (3/3) ... [2023-09-01 07:47:34,700 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2023-09-01 07:47:34,717 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:47:34,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:47:34,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 07:47:34,725 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:47:34,787 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 07:47:34,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 134 transitions, 284 flow [2023-09-01 07:47:34,885 INFO L130 PetriNetUnfolder]: 9/132 cut-off events. [2023-09-01 07:47:34,885 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:47:34,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 132 events. 9/132 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-09-01 07:47:34,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 134 transitions, 284 flow [2023-09-01 07:47:34,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 116 transitions, 241 flow [2023-09-01 07:47:34,897 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:47:34,906 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 115 places, 116 transitions, 241 flow [2023-09-01 07:47:34,908 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 115 places, 116 transitions, 241 flow [2023-09-01 07:47:34,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 116 transitions, 241 flow [2023-09-01 07:47:34,936 INFO L130 PetriNetUnfolder]: 8/116 cut-off events. [2023-09-01 07:47:34,936 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 07:47:34,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 116 events. 8/116 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2023-09-01 07:47:34,938 INFO L119 LiptonReduction]: Number of co-enabled transitions 756 [2023-09-01 07:47:38,504 INFO L134 LiptonReduction]: Checked pairs total: 4325 [2023-09-01 07:47:38,505 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-09-01 07:47:38,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 07:47:38,526 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;@5c34ed7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:47:38,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-09-01 07:47:38,529 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-09-01 07:47:38,529 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:47:38,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:38,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:47:38,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:38,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:38,536 INFO L85 PathProgramCache]: Analyzing trace with hash 534657, now seen corresponding path program 1 times [2023-09-01 07:47:38,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:38,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253156490] [2023-09-01 07:47:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:38,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:38,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:38,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253156490] [2023-09-01 07:47:38,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253156490] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:38,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:38,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:47:38,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862816221] [2023-09-01 07:47:38,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:38,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:47:38,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:38,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:47:38,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:47:38,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:38,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2023-09-01 07:47:38,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:38,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:38,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:39,042 INFO L130 PetriNetUnfolder]: 308/528 cut-off events. [2023-09-01 07:47:39,042 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-09-01 07:47:39,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 528 events. 308/528 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2203 event pairs, 148 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 988. Up to 505 conditions per place. [2023-09-01 07:47:39,048 INFO L137 encePairwiseOnDemand]: 235/242 looper letters, 28 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2023-09-01 07:47:39,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 140 flow [2023-09-01 07:47:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:47:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:47:39,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2023-09-01 07:47:39,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4903581267217631 [2023-09-01 07:47:39,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 356 transitions. [2023-09-01 07:47:39,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 356 transitions. [2023-09-01 07:47:39,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:39,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 356 transitions. [2023-09-01 07:47:39,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2023-09-01 07:47:39,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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) [2023-09-01 07:47:39,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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) [2023-09-01 07:47:39,122 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 65 flow. Second operand 3 states and 356 transitions. [2023-09-01 07:47:39,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 140 flow [2023-09-01 07:47:39,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 07:47:39,126 INFO L231 Difference]: Finished difference. Result has 33 places, 30 transitions, 85 flow [2023-09-01 07:47:39,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=33, PETRI_TRANSITIONS=30} [2023-09-01 07:47:39,160 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-09-01 07:47:39,160 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 30 transitions, 85 flow [2023-09-01 07:47:39,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2023-09-01 07:47:39,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:39,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 07:47:39,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:47:39,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:39,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:39,162 INFO L85 PathProgramCache]: Analyzing trace with hash 16574804, now seen corresponding path program 1 times [2023-09-01 07:47:39,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:39,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668095309] [2023-09-01 07:47:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:39,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:39,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:39,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:39,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668095309] [2023-09-01 07:47:39,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668095309] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:39,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:39,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:47:39,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520409275] [2023-09-01 07:47:39,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:39,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:47:39,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:39,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:47:39,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 07:47:39,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:39,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2023-09-01 07:47:39,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:39,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:39,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:39,571 INFO L130 PetriNetUnfolder]: 291/539 cut-off events. [2023-09-01 07:47:39,571 INFO L131 PetriNetUnfolder]: For 40/42 co-relation queries the response was YES. [2023-09-01 07:47:39,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 539 events. 291/539 cut-off events. For 40/42 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2589 event pairs, 76 based on Foata normal form. 2/371 useless extension candidates. Maximal degree in co-relation 1093. Up to 380 conditions per place. [2023-09-01 07:47:39,579 INFO L137 encePairwiseOnDemand]: 227/242 looper letters, 39 selfloop transitions, 10 changer transitions 0/51 dead transitions. [2023-09-01 07:47:39,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 51 transitions, 238 flow [2023-09-01 07:47:39,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:47:39,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:47:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 483 transitions. [2023-09-01 07:47:39,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4989669421487603 [2023-09-01 07:47:39,583 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 483 transitions. [2023-09-01 07:47:39,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 483 transitions. [2023-09-01 07:47:39,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:39,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 483 transitions. [2023-09-01 07:47:39,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.75) internal successors, (483), 4 states have internal predecessors, (483), 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) [2023-09-01 07:47:39,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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) [2023-09-01 07:47:39,588 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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) [2023-09-01 07:47:39,588 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 85 flow. Second operand 4 states and 483 transitions. [2023-09-01 07:47:39,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 51 transitions, 238 flow [2023-09-01 07:47:39,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 51 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:47:39,590 INFO L231 Difference]: Finished difference. Result has 37 places, 37 transitions, 165 flow [2023-09-01 07:47:39,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2023-09-01 07:47:39,591 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-09-01 07:47:39,591 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 37 transitions, 165 flow [2023-09-01 07:47:39,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2023-09-01 07:47:39,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:39,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 07:47:39,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 07:47:39,592 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:39,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:39,593 INFO L85 PathProgramCache]: Analyzing trace with hash 16574805, now seen corresponding path program 1 times [2023-09-01 07:47:39,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:39,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165518830] [2023-09-01 07:47:39,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:39,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:39,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:39,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:39,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165518830] [2023-09-01 07:47:39,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165518830] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:39,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:39,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:47:39,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064890494] [2023-09-01 07:47:39,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:39,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:47:39,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:39,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:47:39,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 07:47:39,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:39,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 37 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2023-09-01 07:47:39,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:39,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:39,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:39,841 INFO L130 PetriNetUnfolder]: 315/567 cut-off events. [2023-09-01 07:47:39,842 INFO L131 PetriNetUnfolder]: For 291/296 co-relation queries the response was YES. [2023-09-01 07:47:39,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 567 events. 315/567 cut-off events. For 291/296 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2575 event pairs, 76 based on Foata normal form. 63/570 useless extension candidates. Maximal degree in co-relation 1385. Up to 369 conditions per place. [2023-09-01 07:47:39,845 INFO L137 encePairwiseOnDemand]: 231/242 looper letters, 40 selfloop transitions, 8 changer transitions 0/50 dead transitions. [2023-09-01 07:47:39,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 286 flow [2023-09-01 07:47:39,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:47:39,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:47:39,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 474 transitions. [2023-09-01 07:47:39,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4896694214876033 [2023-09-01 07:47:39,848 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 474 transitions. [2023-09-01 07:47:39,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 474 transitions. [2023-09-01 07:47:39,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:39,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 474 transitions. [2023-09-01 07:47:39,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 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) [2023-09-01 07:47:39,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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) [2023-09-01 07:47:39,852 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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) [2023-09-01 07:47:39,852 INFO L175 Difference]: Start difference. First operand has 37 places, 37 transitions, 165 flow. Second operand 4 states and 474 transitions. [2023-09-01 07:47:39,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 286 flow [2023-09-01 07:47:39,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 50 transitions, 281 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 07:47:39,858 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 191 flow [2023-09-01 07:47:39,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=191, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2023-09-01 07:47:39,859 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2023-09-01 07:47:39,862 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 191 flow [2023-09-01 07:47:39,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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) [2023-09-01 07:47:39,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:39,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:39,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 07:47:39,863 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:39,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:39,864 INFO L85 PathProgramCache]: Analyzing trace with hash -39463119, now seen corresponding path program 1 times [2023-09-01 07:47:39,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:39,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709021587] [2023-09-01 07:47:39,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:39,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:39,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:39,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709021587] [2023-09-01 07:47:39,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709021587] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:39,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:39,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:47:39,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51414119] [2023-09-01 07:47:39,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:39,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:47:39,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:39,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:47:39,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:47:39,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:39,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-09-01 07:47:39,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:39,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:39,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:40,023 INFO L130 PetriNetUnfolder]: 294/534 cut-off events. [2023-09-01 07:47:40,025 INFO L131 PetriNetUnfolder]: For 554/557 co-relation queries the response was YES. [2023-09-01 07:47:40,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1575 conditions, 534 events. 294/534 cut-off events. For 554/557 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2382 event pairs, 202 based on Foata normal form. 14/538 useless extension candidates. Maximal degree in co-relation 837. Up to 517 conditions per place. [2023-09-01 07:47:40,030 INFO L137 encePairwiseOnDemand]: 240/242 looper letters, 33 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2023-09-01 07:47:40,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 253 flow [2023-09-01 07:47:40,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:47:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:47:40,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2023-09-01 07:47:40,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47520661157024796 [2023-09-01 07:47:40,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2023-09-01 07:47:40,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2023-09-01 07:47:40,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:40,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2023-09-01 07:47:40,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 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) [2023-09-01 07:47:40,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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) [2023-09-01 07:47:40,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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) [2023-09-01 07:47:40,040 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 191 flow. Second operand 3 states and 345 transitions. [2023-09-01 07:47:40,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 253 flow [2023-09-01 07:47:40,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 250 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:47:40,046 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 184 flow [2023-09-01 07:47:40,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=37, 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=184, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2023-09-01 07:47:40,048 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2023-09-01 07:47:40,048 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 184 flow [2023-09-01 07:47:40,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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) [2023-09-01 07:47:40,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:40,049 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:40,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:47:40,049 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:40,049 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:40,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1223356252, now seen corresponding path program 1 times [2023-09-01 07:47:40,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:40,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726446577] [2023-09-01 07:47:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:40,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:40,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:40,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:40,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726446577] [2023-09-01 07:47:40,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726446577] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:40,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:40,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:47:40,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625130383] [2023-09-01 07:47:40,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:40,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:47:40,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:40,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:47:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:47:40,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:40,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 184 flow. Second operand has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2023-09-01 07:47:40,182 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:40,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:40,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:40,318 INFO L130 PetriNetUnfolder]: 339/645 cut-off events. [2023-09-01 07:47:40,319 INFO L131 PetriNetUnfolder]: For 532/536 co-relation queries the response was YES. [2023-09-01 07:47:40,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 645 events. 339/645 cut-off events. For 532/536 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3251 event pairs, 56 based on Foata normal form. 40/679 useless extension candidates. Maximal degree in co-relation 1800. Up to 365 conditions per place. [2023-09-01 07:47:40,322 INFO L137 encePairwiseOnDemand]: 228/242 looper letters, 44 selfloop transitions, 17 changer transitions 3/66 dead transitions. [2023-09-01 07:47:40,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 66 transitions, 418 flow [2023-09-01 07:47:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 07:47:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 07:47:40,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 598 transitions. [2023-09-01 07:47:40,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49421487603305786 [2023-09-01 07:47:40,325 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 598 transitions. [2023-09-01 07:47:40,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 598 transitions. [2023-09-01 07:47:40,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:40,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 598 transitions. [2023-09-01 07:47:40,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2023-09-01 07:47:40,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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) [2023-09-01 07:47:40,330 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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) [2023-09-01 07:47:40,330 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 184 flow. Second operand 5 states and 598 transitions. [2023-09-01 07:47:40,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 66 transitions, 418 flow [2023-09-01 07:47:40,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 66 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:47:40,334 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 318 flow [2023-09-01 07:47:40,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2023-09-01 07:47:40,337 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-09-01 07:47:40,337 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 318 flow [2023-09-01 07:47:40,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2023-09-01 07:47:40,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:40,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:40,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:47:40,338 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:40,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:40,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1223663452, now seen corresponding path program 1 times [2023-09-01 07:47:40,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:40,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312346680] [2023-09-01 07:47:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:40,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:40,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:40,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:40,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312346680] [2023-09-01 07:47:40,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312346680] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:40,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:40,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:47:40,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128078127] [2023-09-01 07:47:40,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:40,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:47:40,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:40,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:47:40,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:47:40,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:40,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 318 flow. Second operand has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2023-09-01 07:47:40,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:40,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:40,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:40,632 INFO L130 PetriNetUnfolder]: 296/582 cut-off events. [2023-09-01 07:47:40,632 INFO L131 PetriNetUnfolder]: For 1121/1125 co-relation queries the response was YES. [2023-09-01 07:47:40,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2020 conditions, 582 events. 296/582 cut-off events. For 1121/1125 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2923 event pairs, 32 based on Foata normal form. 12/592 useless extension candidates. Maximal degree in co-relation 2002. Up to 281 conditions per place. [2023-09-01 07:47:40,636 INFO L137 encePairwiseOnDemand]: 228/242 looper letters, 40 selfloop transitions, 21 changer transitions 5/68 dead transitions. [2023-09-01 07:47:40,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 552 flow [2023-09-01 07:47:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 07:47:40,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 07:47:40,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 595 transitions. [2023-09-01 07:47:40,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49173553719008267 [2023-09-01 07:47:40,639 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 595 transitions. [2023-09-01 07:47:40,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 595 transitions. [2023-09-01 07:47:40,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:40,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 595 transitions. [2023-09-01 07:47:40,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2023-09-01 07:47:40,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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) [2023-09-01 07:47:40,643 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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) [2023-09-01 07:47:40,643 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 318 flow. Second operand 5 states and 595 transitions. [2023-09-01 07:47:40,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 552 flow [2023-09-01 07:47:40,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 68 transitions, 541 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-09-01 07:47:40,649 INFO L231 Difference]: Finished difference. Result has 49 places, 45 transitions, 402 flow [2023-09-01 07:47:40,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=402, PETRI_PLACES=49, PETRI_TRANSITIONS=45} [2023-09-01 07:47:40,654 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2023-09-01 07:47:40,654 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 402 flow [2023-09-01 07:47:40,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2023-09-01 07:47:40,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:40,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:40,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 07:47:40,655 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:40,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:40,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1223356238, now seen corresponding path program 1 times [2023-09-01 07:47:40,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:40,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34653905] [2023-09-01 07:47:40,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:40,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:40,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34653905] [2023-09-01 07:47:40,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34653905] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:40,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:40,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 07:47:40,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843133904] [2023-09-01 07:47:40,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:40,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 07:47:40,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:40,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 07:47:40,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-01 07:47:40,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:40,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 402 flow. Second operand has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2023-09-01 07:47:40,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:40,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:40,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:40,870 INFO L130 PetriNetUnfolder]: 187/403 cut-off events. [2023-09-01 07:47:40,871 INFO L131 PetriNetUnfolder]: For 1142/1144 co-relation queries the response was YES. [2023-09-01 07:47:40,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 403 events. 187/403 cut-off events. For 1142/1144 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1927 event pairs, 24 based on Foata normal form. 26/429 useless extension candidates. Maximal degree in co-relation 1476. Up to 205 conditions per place. [2023-09-01 07:47:40,873 INFO L137 encePairwiseOnDemand]: 232/242 looper letters, 40 selfloop transitions, 13 changer transitions 3/58 dead transitions. [2023-09-01 07:47:40,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 58 transitions, 513 flow [2023-09-01 07:47:40,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 07:47:40,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 07:47:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 587 transitions. [2023-09-01 07:47:40,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48512396694214877 [2023-09-01 07:47:40,876 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 587 transitions. [2023-09-01 07:47:40,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 587 transitions. [2023-09-01 07:47:40,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:40,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 587 transitions. [2023-09-01 07:47:40,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 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) [2023-09-01 07:47:40,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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) [2023-09-01 07:47:40,880 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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) [2023-09-01 07:47:40,880 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 402 flow. Second operand 5 states and 587 transitions. [2023-09-01 07:47:40,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 58 transitions, 513 flow [2023-09-01 07:47:40,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 58 transitions, 480 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-09-01 07:47:40,885 INFO L231 Difference]: Finished difference. Result has 49 places, 37 transitions, 334 flow [2023-09-01 07:47:40,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=334, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2023-09-01 07:47:40,886 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2023-09-01 07:47:40,886 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 334 flow [2023-09-01 07:47:40,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2023-09-01 07:47:40,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:40,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:40,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 07:47:40,887 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:40,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:40,888 INFO L85 PathProgramCache]: Analyzing trace with hash 730662692, now seen corresponding path program 1 times [2023-09-01 07:47:40,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:40,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129221976] [2023-09-01 07:47:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:40,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:40,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129221976] [2023-09-01 07:47:40,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129221976] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:40,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:40,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 07:47:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393332599] [2023-09-01 07:47:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:40,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 07:47:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:40,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 07:47:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:47:40,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:40,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 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) [2023-09-01 07:47:40,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:40,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:40,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:41,109 INFO L130 PetriNetUnfolder]: 108/256 cut-off events. [2023-09-01 07:47:41,109 INFO L131 PetriNetUnfolder]: For 1082/1084 co-relation queries the response was YES. [2023-09-01 07:47:41,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 256 events. 108/256 cut-off events. For 1082/1084 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1165 event pairs, 24 based on Foata normal form. 30/286 useless extension candidates. Maximal degree in co-relation 1012. Up to 108 conditions per place. [2023-09-01 07:47:41,111 INFO L137 encePairwiseOnDemand]: 232/242 looper letters, 32 selfloop transitions, 12 changer transitions 12/58 dead transitions. [2023-09-01 07:47:41,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 482 flow [2023-09-01 07:47:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 07:47:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 07:47:41,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 699 transitions. [2023-09-01 07:47:41,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48140495867768596 [2023-09-01 07:47:41,114 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 699 transitions. [2023-09-01 07:47:41,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 699 transitions. [2023-09-01 07:47:41,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:41,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 699 transitions. [2023-09-01 07:47:41,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 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) [2023-09-01 07:47:41,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 242.0) internal successors, (1694), 7 states have internal predecessors, (1694), 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) [2023-09-01 07:47:41,119 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 242.0) internal successors, (1694), 7 states have internal predecessors, (1694), 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) [2023-09-01 07:47:41,119 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 334 flow. Second operand 6 states and 699 transitions. [2023-09-01 07:47:41,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 482 flow [2023-09-01 07:47:41,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 457 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-09-01 07:47:41,124 INFO L231 Difference]: Finished difference. Result has 49 places, 28 transitions, 230 flow [2023-09-01 07:47:41,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=230, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2023-09-01 07:47:41,125 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 16 predicate places. [2023-09-01 07:47:41,125 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 230 flow [2023-09-01 07:47:41,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 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) [2023-09-01 07:47:41,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:41,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:41,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 07:47:41,126 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:41,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:41,126 INFO L85 PathProgramCache]: Analyzing trace with hash 721139102, now seen corresponding path program 1 times [2023-09-01 07:47:41,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:41,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313028181] [2023-09-01 07:47:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:41,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:41,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:41,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:41,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313028181] [2023-09-01 07:47:41,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313028181] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:41,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:41,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 07:47:41,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35851969] [2023-09-01 07:47:41,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:41,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 07:47:41,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:41,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 07:47:41,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:47:41,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:41,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 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) [2023-09-01 07:47:41,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:41,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:41,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:41,292 INFO L130 PetriNetUnfolder]: 40/96 cut-off events. [2023-09-01 07:47:41,292 INFO L131 PetriNetUnfolder]: For 521/523 co-relation queries the response was YES. [2023-09-01 07:47:41,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 96 events. 40/96 cut-off events. For 521/523 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 285 event pairs, 6 based on Foata normal form. 16/112 useless extension candidates. Maximal degree in co-relation 398. Up to 52 conditions per place. [2023-09-01 07:47:41,293 INFO L137 encePairwiseOnDemand]: 234/242 looper letters, 14 selfloop transitions, 4 changer transitions 13/32 dead transitions. [2023-09-01 07:47:41,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 32 transitions, 256 flow [2023-09-01 07:47:41,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 07:47:41,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 07:47:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 674 transitions. [2023-09-01 07:47:41,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4641873278236915 [2023-09-01 07:47:41,296 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 674 transitions. [2023-09-01 07:47:41,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 674 transitions. [2023-09-01 07:47:41,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:41,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 674 transitions. [2023-09-01 07:47:41,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.33333333333333) internal successors, (674), 6 states have internal predecessors, (674), 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) [2023-09-01 07:47:41,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 242.0) internal successors, (1694), 7 states have internal predecessors, (1694), 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) [2023-09-01 07:47:41,300 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 242.0) internal successors, (1694), 7 states have internal predecessors, (1694), 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) [2023-09-01 07:47:41,304 INFO L175 Difference]: Start difference. First operand has 49 places, 28 transitions, 230 flow. Second operand 6 states and 674 transitions. [2023-09-01 07:47:41,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 32 transitions, 256 flow [2023-09-01 07:47:41,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 192 flow, removed 9 selfloop flow, removed 13 redundant places. [2023-09-01 07:47:41,307 INFO L231 Difference]: Finished difference. Result has 37 places, 13 transitions, 64 flow [2023-09-01 07:47:41,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=13} [2023-09-01 07:47:41,308 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2023-09-01 07:47:41,308 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 13 transitions, 64 flow [2023-09-01 07:47:41,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 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) [2023-09-01 07:47:41,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:47:41,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:41,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 07:47:41,309 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:47:41,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:47:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash 730677573, now seen corresponding path program 1 times [2023-09-01 07:47:41,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:47:41,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6516298] [2023-09-01 07:47:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:47:41,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:47:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:47:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 07:47:41,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:47:41,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6516298] [2023-09-01 07:47:41,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6516298] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:47:41,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:47:41,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 07:47:41,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911775674] [2023-09-01 07:47:41,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:47:41,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 07:47:41,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:47:41,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 07:47:41,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-09-01 07:47:41,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 242 [2023-09-01 07:47:41,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 13 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 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) [2023-09-01 07:47:41,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:47:41,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 242 [2023-09-01 07:47:41,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:47:41,435 INFO L130 PetriNetUnfolder]: 16/46 cut-off events. [2023-09-01 07:47:41,435 INFO L131 PetriNetUnfolder]: For 128/128 co-relation queries the response was YES. [2023-09-01 07:47:41,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 46 events. 16/46 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 98 event pairs, 0 based on Foata normal form. 14/60 useless extension candidates. Maximal degree in co-relation 130. Up to 21 conditions per place. [2023-09-01 07:47:41,435 INFO L137 encePairwiseOnDemand]: 236/242 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-09-01 07:47:41,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 18 transitions, 103 flow [2023-09-01 07:47:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 07:47:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 07:47:41,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2023-09-01 07:47:41,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45523415977961434 [2023-09-01 07:47:41,444 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 661 transitions. [2023-09-01 07:47:41,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 661 transitions. [2023-09-01 07:47:41,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:47:41,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 661 transitions. [2023-09-01 07:47:41,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 07:47:41,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 242.0) internal successors, (1694), 7 states have internal predecessors, (1694), 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) [2023-09-01 07:47:41,448 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 242.0) internal successors, (1694), 7 states have internal predecessors, (1694), 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) [2023-09-01 07:47:41,448 INFO L175 Difference]: Start difference. First operand has 37 places, 13 transitions, 64 flow. Second operand 6 states and 661 transitions. [2023-09-01 07:47:41,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 18 transitions, 103 flow [2023-09-01 07:47:41,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 18 transitions, 84 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-09-01 07:47:41,449 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-09-01 07:47:41,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-09-01 07:47:41,451 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -8 predicate places. [2023-09-01 07:47:41,451 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-09-01 07:47:41,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.33333333333333) internal successors, (650), 6 states have internal predecessors, (650), 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) [2023-09-01 07:47:41,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-09-01 07:47:41,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-09-01 07:47:41,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-09-01 07:47:41,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-09-01 07:47:41,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-09-01 07:47:41,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-09-01 07:47:41,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-09-01 07:47:41,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-09-01 07:47:41,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2023-09-01 07:47:41,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-09-01 07:47:41,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-09-01 07:47:41,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-09-01 07:47:41,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-09-01 07:47:41,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-09-01 07:47:41,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-09-01 07:47:41,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-09-01 07:47:41,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-09-01 07:47:41,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-09-01 07:47:41,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 07:47:41,456 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:47:41,462 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 07:47:41,462 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 07:47:41,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 07:47:41 BasicIcfg [2023-09-01 07:47:41,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 07:47:41,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 07:47:41,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 07:47:41,466 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 07:47:41,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:47:34" (3/4) ... [2023-09-01 07:47:41,468 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 07:47:41,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-09-01 07:47:41,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-09-01 07:47:41,478 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-09-01 07:47:41,478 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 07:47:41,479 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 07:47:41,479 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 07:47:41,516 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 07:47:41,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 07:47:41,517 INFO L158 Benchmark]: Toolchain (without parser) took 7824.04ms. Allocated memory was 67.1MB in the beginning and 134.2MB in the end (delta: 67.1MB). Free memory was 35.2MB in the beginning and 102.1MB in the end (delta: -66.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:47:41,517 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:47:41,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.90ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 35.2MB in the beginning and 70.9MB in the end (delta: -35.7MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-09-01 07:47:41,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.07ms. Allocated memory is still 92.3MB. Free memory was 70.9MB in the beginning and 69.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 07:47:41,518 INFO L158 Benchmark]: Boogie Preprocessor took 51.80ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 67.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:47:41,518 INFO L158 Benchmark]: RCFGBuilder took 592.96ms. Allocated memory is still 92.3MB. Free memory was 67.8MB in the beginning and 45.7MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-09-01 07:47:41,519 INFO L158 Benchmark]: TraceAbstraction took 6773.20ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 45.0MB in the beginning and 105.3MB in the end (delta: -60.2MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2023-09-01 07:47:41,519 INFO L158 Benchmark]: Witness Printer took 50.65ms. Allocated memory is still 134.2MB. Free memory was 105.3MB in the beginning and 102.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 07:47:41,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.90ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 35.2MB in the beginning and 70.9MB in the end (delta: -35.7MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.07ms. Allocated memory is still 92.3MB. Free memory was 70.9MB in the beginning and 69.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.80ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 67.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 592.96ms. Allocated memory is still 92.3MB. Free memory was 67.8MB in the beginning and 45.7MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6773.20ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 45.0MB in the beginning and 105.3MB in the end (delta: -60.2MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * Witness Printer took 50.65ms. Allocated memory is still 134.2MB. Free memory was 105.3MB in the beginning and 102.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.6s, 115 PlacesBefore, 33 PlacesAfterwards, 116 TransitionsBefore, 28 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 7 FixpointIterations, 69 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 4 ConcurrentYvCompositions, 6 ChoiceCompositions, 108 TotalNumberOfCompositions, 4325 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1674, independent: 1409, independent conditional: 0, independent unconditional: 1409, dependent: 265, dependent conditional: 0, dependent unconditional: 265, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 395, independent: 371, independent conditional: 0, independent unconditional: 371, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1674, independent: 1038, independent conditional: 0, independent unconditional: 1038, dependent: 241, dependent conditional: 0, dependent unconditional: 241, unknown: 395, unknown conditional: 0, unknown unconditional: 395] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 91, Positive conditional cache size: 0, Positive unconditional cache size: 91, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: 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 5 procedures, 155 locations, 18 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: 6.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 342 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 271 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 864 IncrementalHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 5 mSDtfsCounter, 864 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=6, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 07:47:41,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE