./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-2.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-ticket-2.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 2c45fd7cfbad1c12ff3ef6a6150c824b5f7de404c290f417bc2834c0c8e69422 --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 07:52:21,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:52:21,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:52:21,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:52:21,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:52:21,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:52:21,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:52:21,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:52:21,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:52:21,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:52:21,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:52:21,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:52:21,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:52:21,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:52:21,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:52:21,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:52:21,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:52:21,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:52:21,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:52:21,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:52:21,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:52:21,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:52:21,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:52:21,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:52:21,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:52:21,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:52:21,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:52:21,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:52:21,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:52:21,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:52:21,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:52:21,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:52:21,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:52:21,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:52:21,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:52:21,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:52:21,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:52:21,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:52:21,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:52:21,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:52:21,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:52:21,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:52:22,025 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:52:22,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:52:22,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:52:22,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:52:22,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:52:22,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:52:22,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:52:22,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:52:22,029 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:52:22,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:52:22,030 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:52:22,030 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:52:22,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:52:22,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:52:22,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:52:22,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:52:22,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:52:22,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:52:22,031 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:52:22,031 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:52:22,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:52:22,032 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:52:22,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:52:22,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:52:22,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:52:22,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:52:22,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:52:22,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:52:22,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:52:22,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:52:22,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:52:22,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:52:22,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:52:22,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:52:22,034 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:52:22,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:52:22,035 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:52:22,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c45fd7cfbad1c12ff3ef6a6150c824b5f7de404c290f417bc2834c0c8e69422 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:52:22,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:52:22,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:52:22,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:52:22,343 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:52:22,343 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:52:22,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-09-01 07:52:23,543 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:52:23,780 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:52:23,780 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2023-09-01 07:52:23,787 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e7fe3048/90251919f6464ad2af9fa2b4def4bc0f/FLAGc1ccfc0db [2023-09-01 07:52:23,807 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e7fe3048/90251919f6464ad2af9fa2b4def4bc0f [2023-09-01 07:52:23,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:52:23,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:52:23,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:52:23,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:52:23,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:52:23,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:52:23" (1/1) ... [2023-09-01 07:52:23,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@121cd52e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:23, skipping insertion in model container [2023-09-01 07:52:23,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:52:23" (1/1) ... [2023-09-01 07:52:23,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:52:23,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:52:24,016 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c[2652,2665] [2023-09-01 07:52:24,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:52:24,032 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:52:24,066 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c[2652,2665] [2023-09-01 07:52:24,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:52:24,075 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 07:52:24,075 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 07:52:24,080 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:52:24,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24 WrapperNode [2023-09-01 07:52:24,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:52:24,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:52:24,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:52:24,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:52:24,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,133 INFO L138 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2023-09-01 07:52:24,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:52:24,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:52:24,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:52:24,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:52:24,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,169 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:52:24,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:52:24,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:52:24,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:52:24,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (1/1) ... [2023-09-01 07:52:24,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:52:24,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:52:24,204 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 07:52:24,216 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 07:52:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:52:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-01 07:52:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-01 07:52:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-01 07:52:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-01 07:52:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:52:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:52:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:52:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 07:52:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 07:52:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:52:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:52:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 07:52:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:52:24,245 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 07:52:24,349 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:52:24,351 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:52:24,627 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:52:24,710 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:52:24,710 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 07:52:24,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:52:24 BoogieIcfgContainer [2023-09-01 07:52:24,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:52:24,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:52:24,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:52:24,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:52:24,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:52:23" (1/3) ... [2023-09-01 07:52:24,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b546420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:52:24, skipping insertion in model container [2023-09-01 07:52:24,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:52:24" (2/3) ... [2023-09-01 07:52:24,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b546420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:52:24, skipping insertion in model container [2023-09-01 07:52:24,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:52:24" (3/3) ... [2023-09-01 07:52:24,719 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2023-09-01 07:52:24,726 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:52:24,752 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:52:24,753 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 07:52:24,753 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:52:24,856 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 07:52:24,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 101 transitions, 218 flow [2023-09-01 07:52:24,972 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2023-09-01 07:52:24,973 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:52:24,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 99 events. 2/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-09-01 07:52:24,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 101 transitions, 218 flow [2023-09-01 07:52:24,981 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 83 transitions, 175 flow [2023-09-01 07:52:24,983 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:52:24,991 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 83 transitions, 175 flow [2023-09-01 07:52:24,994 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 83 transitions, 175 flow [2023-09-01 07:52:24,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 83 transitions, 175 flow [2023-09-01 07:52:25,036 INFO L130 PetriNetUnfolder]: 1/83 cut-off events. [2023-09-01 07:52:25,039 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 07:52:25,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 83 events. 1/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2023-09-01 07:52:25,042 INFO L119 LiptonReduction]: Number of co-enabled transitions 538 [2023-09-01 07:52:27,855 INFO L134 LiptonReduction]: Checked pairs total: 2755 [2023-09-01 07:52:27,856 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-09-01 07:52:27,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 07:52:27,872 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;@79a7e6df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:52:27,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-09-01 07:52:27,874 INFO L130 PetriNetUnfolder]: 0/2 cut-off events. [2023-09-01 07:52:27,874 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:52:27,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:52:27,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 07:52:27,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:52:27,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:52:27,880 INFO L85 PathProgramCache]: Analyzing trace with hash 399968, now seen corresponding path program 1 times [2023-09-01 07:52:27,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:52:27,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062516578] [2023-09-01 07:52:27,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:52:27,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:52:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:52:28,166 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 07:52:28,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:52:28,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062516578] [2023-09-01 07:52:28,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062516578] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:52:28,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:52:28,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:52:28,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434828224] [2023-09-01 07:52:28,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:52:28,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:52:28,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:52:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:52:28,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:52:28,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-09-01 07:52:28,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 07:52:28,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:52:28,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-09-01 07:52:28,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:52:28,293 INFO L130 PetriNetUnfolder]: 161/326 cut-off events. [2023-09-01 07:52:28,293 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2023-09-01 07:52:28,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 326 events. 161/326 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1590 event pairs, 86 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 584. Up to 298 conditions per place. [2023-09-01 07:52:28,297 INFO L137 encePairwiseOnDemand]: 158/165 looper letters, 23 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2023-09-01 07:52:28,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 122 flow [2023-09-01 07:52:28,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:52:28,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:52:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-09-01 07:52:28,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-09-01 07:52:28,310 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-09-01 07:52:28,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-09-01 07:52:28,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:52:28,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-09-01 07:52:28,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 07:52:28,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 07:52:28,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 07:52:28,322 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 57 flow. Second operand 3 states and 264 transitions. [2023-09-01 07:52:28,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 122 flow [2023-09-01 07:52:28,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 07:52:28,325 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 77 flow [2023-09-01 07:52:28,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2023-09-01 07:52:28,330 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-09-01 07:52:28,331 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 77 flow [2023-09-01 07:52:28,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 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 07:52:28,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:52:28,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 07:52:28,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:52:28,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:52:28,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:52:28,333 INFO L85 PathProgramCache]: Analyzing trace with hash -966825360, now seen corresponding path program 1 times [2023-09-01 07:52:28,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:52:28,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122325217] [2023-09-01 07:52:28,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:52:28,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:52:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:52:28,392 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 07:52:28,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:52:28,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122325217] [2023-09-01 07:52:28,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122325217] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:52:28,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:52:28,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:52:28,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349587014] [2023-09-01 07:52:28,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:52:28,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:52:28,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:52:28,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:52:28,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:52:28,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-09-01 07:52:28,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 07:52:28,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:52:28,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-09-01 07:52:28,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:52:28,456 INFO L130 PetriNetUnfolder]: 133/270 cut-off events. [2023-09-01 07:52:28,456 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-09-01 07:52:28,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 270 events. 133/270 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1296 event pairs, 123 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 438. Up to 252 conditions per place. [2023-09-01 07:52:28,459 INFO L137 encePairwiseOnDemand]: 162/165 looper letters, 20 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2023-09-01 07:52:28,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 111 flow [2023-09-01 07:52:28,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:52:28,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:52:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 255 transitions. [2023-09-01 07:52:28,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5151515151515151 [2023-09-01 07:52:28,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 255 transitions. [2023-09-01 07:52:28,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 255 transitions. [2023-09-01 07:52:28,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:52:28,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 255 transitions. [2023-09-01 07:52:28,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 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 07:52:28,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 07:52:28,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 07:52:28,467 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 77 flow. Second operand 3 states and 255 transitions. [2023-09-01 07:52:28,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 111 flow [2023-09-01 07:52:28,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:52:28,468 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 68 flow [2023-09-01 07:52:28,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2023-09-01 07:52:28,469 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-09-01 07:52:28,469 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 68 flow [2023-09-01 07:52:28,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 07:52:28,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:52:28,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 07:52:28,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 07:52:28,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:52:28,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:52:28,471 INFO L85 PathProgramCache]: Analyzing trace with hash -969036899, now seen corresponding path program 1 times [2023-09-01 07:52:28,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:52:28,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935928877] [2023-09-01 07:52:28,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:52:28,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:52:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:52:28,603 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 07:52:28,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:52:28,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935928877] [2023-09-01 07:52:28,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935928877] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:52:28,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:52:28,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:52:28,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088507661] [2023-09-01 07:52:28,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:52:28,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:52:28,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:52:28,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:52:28,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 07:52:28,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-09-01 07:52:28,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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 07:52:28,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:52:28,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-09-01 07:52:28,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:52:28,710 INFO L130 PetriNetUnfolder]: 105/224 cut-off events. [2023-09-01 07:52:28,710 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2023-09-01 07:52:28,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 224 events. 105/224 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 981 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 465. Up to 146 conditions per place. [2023-09-01 07:52:28,713 INFO L137 encePairwiseOnDemand]: 160/165 looper letters, 28 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2023-09-01 07:52:28,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 157 flow [2023-09-01 07:52:28,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:52:28,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:52:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2023-09-01 07:52:28,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5257575757575758 [2023-09-01 07:52:28,716 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 347 transitions. [2023-09-01 07:52:28,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 347 transitions. [2023-09-01 07:52:28,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:52:28,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 347 transitions. [2023-09-01 07:52:28,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 07:52:28,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 07:52:28,720 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 07:52:28,720 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 68 flow. Second operand 4 states and 347 transitions. [2023-09-01 07:52:28,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 157 flow [2023-09-01 07:52:28,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 36 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:52:28,722 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 69 flow [2023-09-01 07:52:28,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=69, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-09-01 07:52:28,723 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-09-01 07:52:28,723 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 69 flow [2023-09-01 07:52:28,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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 07:52:28,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:52:28,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:52:28,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 07:52:28,725 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:52:28,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:52:28,725 INFO L85 PathProgramCache]: Analyzing trace with hash 22373732, now seen corresponding path program 1 times [2023-09-01 07:52:28,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:52:28,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053296521] [2023-09-01 07:52:28,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:52:28,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:52:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:52:28,816 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 07:52:28,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:52:28,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053296521] [2023-09-01 07:52:28,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053296521] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:52:28,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:52:28,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 07:52:28,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699823539] [2023-09-01 07:52:28,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:52:28,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:52:28,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:52:28,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:52:28,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:52:28,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-09-01 07:52:28,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 07:52:28,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:52:28,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-09-01 07:52:28,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:52:28,873 INFO L130 PetriNetUnfolder]: 53/124 cut-off events. [2023-09-01 07:52:28,874 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2023-09-01 07:52:28,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 124 events. 53/124 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 397 event pairs, 22 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 285. Up to 70 conditions per place. [2023-09-01 07:52:28,878 INFO L137 encePairwiseOnDemand]: 158/165 looper letters, 23 selfloop transitions, 3 changer transitions 2/31 dead transitions. [2023-09-01 07:52:28,878 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 153 flow [2023-09-01 07:52:28,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:52:28,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:52:28,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-09-01 07:52:28,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-09-01 07:52:28,885 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-09-01 07:52:28,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-09-01 07:52:28,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:52:28,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-09-01 07:52:28,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 07:52:28,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 07:52:28,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 07:52:28,889 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 69 flow. Second operand 3 states and 264 transitions. [2023-09-01 07:52:28,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 153 flow [2023-09-01 07:52:28,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 134 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-09-01 07:52:28,891 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 73 flow [2023-09-01 07:52:28,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-09-01 07:52:28,894 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-09-01 07:52:28,894 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 73 flow [2023-09-01 07:52:28,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 07:52:28,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:52:28,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:52:28,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:52:28,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:52:28,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:52:28,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1586836490, now seen corresponding path program 1 times [2023-09-01 07:52:28,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:52:28,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881300080] [2023-09-01 07:52:28,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:52:28,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:52:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:52:28,958 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 07:52:28,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:52:28,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881300080] [2023-09-01 07:52:28,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881300080] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:52:28,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:52:28,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:52:28,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75434292] [2023-09-01 07:52:28,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:52:28,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 07:52:28,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:52:28,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 07:52:28,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 07:52:28,966 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-09-01 07:52:28,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 07:52:28,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:52:28,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-09-01 07:52:28,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:52:28,994 INFO L130 PetriNetUnfolder]: 44/107 cut-off events. [2023-09-01 07:52:28,995 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-09-01 07:52:28,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 107 events. 44/107 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 335 event pairs, 38 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 249. Up to 95 conditions per place. [2023-09-01 07:52:28,996 INFO L137 encePairwiseOnDemand]: 162/165 looper letters, 16 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2023-09-01 07:52:28,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 99 flow [2023-09-01 07:52:29,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 07:52:29,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 07:52:29,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-09-01 07:52:29,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5070707070707071 [2023-09-01 07:52:29,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-09-01 07:52:29,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-09-01 07:52:29,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:52:29,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-09-01 07:52:29,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 07:52:29,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 07:52:29,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 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 07:52:29,017 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 73 flow. Second operand 3 states and 251 transitions. [2023-09-01 07:52:29,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 99 flow [2023-09-01 07:52:29,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 96 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 07:52:29,018 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 64 flow [2023-09-01 07:52:29,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-09-01 07:52:29,020 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2023-09-01 07:52:29,021 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 64 flow [2023-09-01 07:52:29,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 07:52:29,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:52:29,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:52:29,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:52:29,022 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-09-01 07:52:29,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:52:29,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1075677771, now seen corresponding path program 1 times [2023-09-01 07:52:29,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:52:29,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787111090] [2023-09-01 07:52:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:52:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:52:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 07:52:29,152 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 07:52:29,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 07:52:29,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787111090] [2023-09-01 07:52:29,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787111090] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 07:52:29,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 07:52:29,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 07:52:29,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432356637] [2023-09-01 07:52:29,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 07:52:29,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 07:52:29,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 07:52:29,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 07:52:29,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 07:52:29,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 165 [2023-09-01 07:52:29,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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 07:52:29,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 07:52:29,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 165 [2023-09-01 07:52:29,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 07:52:29,196 INFO L130 PetriNetUnfolder]: 40/95 cut-off events. [2023-09-01 07:52:29,197 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-09-01 07:52:29,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 95 events. 40/95 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 273 event pairs, 16 based on Foata normal form. 6/98 useless extension candidates. Maximal degree in co-relation 207. Up to 45 conditions per place. [2023-09-01 07:52:29,197 INFO L137 encePairwiseOnDemand]: 160/165 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-09-01 07:52:29,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 25 transitions, 118 flow [2023-09-01 07:52:29,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 07:52:29,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 07:52:29,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-09-01 07:52:29,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5060606060606061 [2023-09-01 07:52:29,200 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-09-01 07:52:29,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-09-01 07:52:29,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 07:52:29,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-09-01 07:52:29,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 07:52:29,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 07:52:29,203 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 07:52:29,203 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 64 flow. Second operand 4 states and 334 transitions. [2023-09-01 07:52:29,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 25 transitions, 118 flow [2023-09-01 07:52:29,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 07:52:29,205 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-09-01 07:52:29,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-09-01 07:52:29,209 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2023-09-01 07:52:29,209 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-09-01 07:52:29,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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 07:52:29,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-09-01 07:52:29,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-09-01 07:52:29,213 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-09-01 07:52:29,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-09-01 07:52:29,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-09-01 07:52:29,214 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-09-01 07:52:29,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-09-01 07:52:29,215 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-09-01 07:52:29,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2023-09-01 07:52:29,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2023-09-01 07:52:29,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-09-01 07:52:29,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-09-01 07:52:29,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-09-01 07:52:29,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-09-01 07:52:29,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-09-01 07:52:29,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-09-01 07:52:29,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-09-01 07:52:29,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-09-01 07:52:29,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 07:52:29,218 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-09-01 07:52:29,223 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 07:52:29,223 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 07:52:29,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 07:52:29 BasicIcfg [2023-09-01 07:52:29,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 07:52:29,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 07:52:29,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 07:52:29,229 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 07:52:29,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:52:24" (3/4) ... [2023-09-01 07:52:29,231 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 07:52:29,235 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-09-01 07:52:29,235 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-09-01 07:52:29,241 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-09-01 07:52:29,241 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-09-01 07:52:29,241 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 07:52:29,242 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 07:52:29,278 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 07:52:29,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 07:52:29,279 INFO L158 Benchmark]: Toolchain (without parser) took 5467.22ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 59.3MB in the beginning and 40.9MB in the end (delta: 18.4MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2023-09-01 07:52:29,279 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:52:29,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.13ms. Allocated memory is still 81.8MB. Free memory was 59.1MB in the beginning and 48.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 07:52:29,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.25ms. Allocated memory is still 81.8MB. Free memory was 48.2MB in the beginning and 46.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 07:52:29,280 INFO L158 Benchmark]: Boogie Preprocessor took 41.29ms. Allocated memory is still 81.8MB. Free memory was 46.5MB in the beginning and 45.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 07:52:29,280 INFO L158 Benchmark]: RCFGBuilder took 536.03ms. Allocated memory is still 81.8MB. Free memory was 45.2MB in the beginning and 46.2MB in the end (delta: -1.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-09-01 07:52:29,280 INFO L158 Benchmark]: TraceAbstraction took 4513.67ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-09-01 07:52:29,281 INFO L158 Benchmark]: Witness Printer took 49.81ms. Allocated memory is still 98.6MB. Free memory was 44.1MB in the beginning and 40.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 07:52:29,283 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 65.0MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.13ms. Allocated memory is still 81.8MB. Free memory was 59.1MB in the beginning and 48.4MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.25ms. Allocated memory is still 81.8MB. Free memory was 48.2MB in the beginning and 46.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.29ms. Allocated memory is still 81.8MB. Free memory was 46.5MB in the beginning and 45.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 536.03ms. Allocated memory is still 81.8MB. Free memory was 45.2MB in the beginning and 46.2MB in the end (delta: -1.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4513.67ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 49.81ms. Allocated memory is still 98.6MB. Free memory was 44.1MB in the beginning and 40.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 89 PlacesBefore, 31 PlacesAfterwards, 83 TransitionsBefore, 24 TransitionsAfterwards, 538 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2755 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1293, independent: 1109, independent conditional: 0, independent unconditional: 1109, dependent: 184, dependent conditional: 0, dependent unconditional: 184, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 262, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1293, independent: 870, independent conditional: 0, independent unconditional: 870, dependent: 161, dependent conditional: 0, dependent unconditional: 161, unknown: 262, unknown conditional: 0, unknown unconditional: 262] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 125 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: 4.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 7 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=1, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 07:52:29,315 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