./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i -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 ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:05:31,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:05:31,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:05:31,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:05:31,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:05:31,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:05:31,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:05:31,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:05:31,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:05:31,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:05:31,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:05:31,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:05:31,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:05:31,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:05:31,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:05:31,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:05:31,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:05:31,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:05:31,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:05:31,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:05:31,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:05:31,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:05:31,712 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:05:31,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:05:31,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:05:31,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:05:31,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:05:31,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:05:31,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:05:31,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:05:31,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:05:31,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:05:31,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:05:31,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:05:31,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:05:31,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:05:31,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:05:31,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:05:31,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:05:31,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:05:31,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:05:31,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:05:31,767 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:05:31,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:05:31,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:05:31,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:05:31,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:05:31,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:05:31,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:05:31,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:05:31,770 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:05:31,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:05:31,771 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:05:31,771 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:05:31,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:05:31,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:05:31,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:05:31,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:05:31,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:05:31,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:05:31,773 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:05:31,773 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:05:31,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:05:31,773 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:05:31,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:05:31,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:05:31,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:05:31,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:05:31,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:05:31,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:05:31,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:05:31,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:05:31,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:05:31,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:05:31,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:05:31,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:05:31,776 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:05:31,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:05:31,776 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:05:31,777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:05:32,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:05:32,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:05:32,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:05:32,121 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:05:32,121 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:05:32,122 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2023-08-30 13:05:33,207 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:05:33,489 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:05:33,490 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i [2023-08-30 13:05:33,518 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c52fe1c1/aaf9af5aa9ae49bf88b8829272e53e22/FLAG98dffd872 [2023-08-30 13:05:33,537 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c52fe1c1/aaf9af5aa9ae49bf88b8829272e53e22 [2023-08-30 13:05:33,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:05:33,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:05:33,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:05:33,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:05:33,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:05:33,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:05:33" (1/1) ... [2023-08-30 13:05:33,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6855762e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:33, skipping insertion in model container [2023-08-30 13:05:33,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:05:33" (1/1) ... [2023-08-30 13:05:33,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:05:33,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:05:33,781 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i[945,958] [2023-08-30 13:05:33,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:05:33,966 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:05:33,978 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.i[945,958] [2023-08-30 13:05:34,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:05:34,063 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:05:34,063 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:05:34,069 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:05:34,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34 WrapperNode [2023-08-30 13:05:34,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:05:34,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:05:34,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:05:34,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:05:34,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,122 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-08-30 13:05:34,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:05:34,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:05:34,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:05:34,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:05:34,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,161 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:05:34,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:05:34,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:05:34,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:05:34,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (1/1) ... [2023-08-30 13:05:34,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:05:34,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:05:34,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:05:34,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:05:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:05:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:05:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:05:34,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:05:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:05:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:05:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:05:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:05:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:05:34,251 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:05:34,251 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:05:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:05:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:05:34,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:05:34,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:05:34,253 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:05:34,401 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:05:34,411 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:05:34,609 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:05:34,630 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:05:34,630 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:05:34,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:05:34 BoogieIcfgContainer [2023-08-30 13:05:34,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:05:34,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:05:34,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:05:34,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:05:34,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:05:33" (1/3) ... [2023-08-30 13:05:34,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71702f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:05:34, skipping insertion in model container [2023-08-30 13:05:34,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:34" (2/3) ... [2023-08-30 13:05:34,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71702f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:05:34, skipping insertion in model container [2023-08-30 13:05:34,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:05:34" (3/3) ... [2023-08-30 13:05:34,639 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2023-08-30 13:05:34,646 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:05:34,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:05:34,653 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 13:05:34,654 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:05:34,699 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:05:34,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 89 transitions, 193 flow [2023-08-30 13:05:34,773 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-30 13:05:34,773 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:05:34,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2023-08-30 13:05:34,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 89 transitions, 193 flow [2023-08-30 13:05:34,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 86 transitions, 181 flow [2023-08-30 13:05:34,793 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:05:34,800 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-30 13:05:34,803 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-30 13:05:34,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 181 flow [2023-08-30 13:05:34,827 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-30 13:05:34,827 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:05:34,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 86 events. 2/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2023-08-30 13:05:34,830 INFO L119 LiptonReduction]: Number of co-enabled transitions 2016 [2023-08-30 13:05:37,082 INFO L134 LiptonReduction]: Checked pairs total: 5695 [2023-08-30 13:05:37,082 INFO L136 LiptonReduction]: Total number of compositions: 73 [2023-08-30 13:05:37,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:05:37,100 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;@72b7a1fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:05:37,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 13:05:37,104 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:05:37,104 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:05:37,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:05:37,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:05:37,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:05:37,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:05:37,110 INFO L85 PathProgramCache]: Analyzing trace with hash 311750028, now seen corresponding path program 1 times [2023-08-30 13:05:37,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:05:37,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929756157] [2023-08-30 13:05:37,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:05:37,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:05:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:05:37,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:05:37,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:05:37,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929756157] [2023-08-30 13:05:37,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929756157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:05:37,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:05:37,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:05:37,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207867862] [2023-08-30 13:05:37,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:05:37,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:05:37,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:05:37,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:05:37,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:05:37,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-30 13:05:37,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:05:37,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-30 13:05:37,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:05:37,549 INFO L130 PetriNetUnfolder]: 316/550 cut-off events. [2023-08-30 13:05:37,550 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2023-08-30 13:05:37,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 550 events. 316/550 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2630 event pairs, 170 based on Foata normal form. 8/385 useless extension candidates. Maximal degree in co-relation 1118. Up to 505 conditions per place. [2023-08-30 13:05:37,555 INFO L137 encePairwiseOnDemand]: 150/162 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2023-08-30 13:05:37,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 141 flow [2023-08-30 13:05:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:05:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:05:37,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-30 13:05:37,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2023-08-30 13:05:37,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-30 13:05:37,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-30 13:05:37,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:05:37,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-30 13:05:37,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,579 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 57 flow. Second operand 3 states and 258 transitions. [2023-08-30 13:05:37,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 141 flow [2023-08-30 13:05:37,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:05:37,583 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 90 flow [2023-08-30 13:05:37,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-30 13:05:37,588 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-30 13:05:37,588 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 90 flow [2023-08-30 13:05:37,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:05:37,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:05:37,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:05:37,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:05:37,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:05:37,590 INFO L85 PathProgramCache]: Analyzing trace with hash -123873154, now seen corresponding path program 1 times [2023-08-30 13:05:37,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:05:37,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444564993] [2023-08-30 13:05:37,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:05:37,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:05:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:05:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:05:37,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:05:37,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444564993] [2023-08-30 13:05:37,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444564993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:05:37,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:05:37,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:05:37,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276207673] [2023-08-30 13:05:37,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:05:37,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:05:37,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:05:37,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:05:37,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:05:37,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-30 13:05:37,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:05:37,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-30 13:05:37,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:05:37,776 INFO L130 PetriNetUnfolder]: 201/359 cut-off events. [2023-08-30 13:05:37,777 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2023-08-30 13:05:37,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 359 events. 201/359 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1485 event pairs, 86 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 947. Up to 313 conditions per place. [2023-08-30 13:05:37,782 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 23 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2023-08-30 13:05:37,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 150 flow [2023-08-30 13:05:37,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:05:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:05:37,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2023-08-30 13:05:37,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49691358024691357 [2023-08-30 13:05:37,788 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 322 transitions. [2023-08-30 13:05:37,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 322 transitions. [2023-08-30 13:05:37,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:05:37,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 322 transitions. [2023-08-30 13:05:37,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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) [2023-08-30 13:05:37,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,792 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,792 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 90 flow. Second operand 4 states and 322 transitions. [2023-08-30 13:05:37,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 150 flow [2023-08-30 13:05:37,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:05:37,794 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 82 flow [2023-08-30 13:05:37,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-08-30 13:05:37,795 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-08-30 13:05:37,795 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 82 flow [2023-08-30 13:05:37,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:05:37,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:05:37,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:05:37,796 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:05:37,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:05:37,797 INFO L85 PathProgramCache]: Analyzing trace with hash -123873153, now seen corresponding path program 1 times [2023-08-30 13:05:37,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:05:37,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588845968] [2023-08-30 13:05:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:05:37,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:05:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:05:37,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:05:37,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:05:37,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588845968] [2023-08-30 13:05:37,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588845968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:05:37,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:05:37,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:05:37,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923184715] [2023-08-30 13:05:37,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:05:37,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:05:37,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:05:37,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:05:37,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:05:37,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-30 13:05:37,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:05:37,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-30 13:05:37,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:05:37,932 INFO L130 PetriNetUnfolder]: 74/159 cut-off events. [2023-08-30 13:05:37,932 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2023-08-30 13:05:37,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 159 events. 74/159 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 505 event pairs, 23 based on Foata normal form. 12/159 useless extension candidates. Maximal degree in co-relation 416. Up to 67 conditions per place. [2023-08-30 13:05:37,934 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 25 selfloop transitions, 7 changer transitions 3/38 dead transitions. [2023-08-30 13:05:37,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 38 transitions, 194 flow [2023-08-30 13:05:37,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:05:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:05:37,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2023-08-30 13:05:37,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5108024691358025 [2023-08-30 13:05:37,936 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 331 transitions. [2023-08-30 13:05:37,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 331 transitions. [2023-08-30 13:05:37,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:05:37,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 331 transitions. [2023-08-30 13:05:37,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,940 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,940 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 82 flow. Second operand 4 states and 331 transitions. [2023-08-30 13:05:37,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 38 transitions, 194 flow [2023-08-30 13:05:37,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 38 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:05:37,943 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 105 flow [2023-08-30 13:05:37,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-30 13:05:37,944 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-08-30 13:05:37,947 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 105 flow [2023-08-30 13:05:37,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:37,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:05:37,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:05:37,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:05:37,948 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:05:37,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:05:37,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1757380410, now seen corresponding path program 1 times [2023-08-30 13:05:37,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:05:37,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534865364] [2023-08-30 13:05:37,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:05:37,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:05:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:05:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:05:38,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:05:38,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534865364] [2023-08-30 13:05:38,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534865364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:05:38,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:05:38,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:05:38,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159727451] [2023-08-30 13:05:38,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:05:38,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:05:38,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:05:38,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:05:38,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:05:38,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-30 13:05:38,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:38,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:05:38,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-30 13:05:38,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:05:38,141 INFO L130 PetriNetUnfolder]: 54/115 cut-off events. [2023-08-30 13:05:38,142 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2023-08-30 13:05:38,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 115 events. 54/115 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 355 event pairs, 15 based on Foata normal form. 9/121 useless extension candidates. Maximal degree in co-relation 354. Up to 48 conditions per place. [2023-08-30 13:05:38,143 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-08-30 13:05:38,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 30 transitions, 163 flow [2023-08-30 13:05:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:05:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:05:38,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 396 transitions. [2023-08-30 13:05:38,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2023-08-30 13:05:38,151 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 396 transitions. [2023-08-30 13:05:38,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 396 transitions. [2023-08-30 13:05:38,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:05:38,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 396 transitions. [2023-08-30 13:05:38,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:38,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:38,155 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:38,155 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 105 flow. Second operand 5 states and 396 transitions. [2023-08-30 13:05:38,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 30 transitions, 163 flow [2023-08-30 13:05:38,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 139 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 13:05:38,157 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2023-08-30 13:05:38,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=55, 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=5, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2023-08-30 13:05:38,159 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -4 predicate places. [2023-08-30 13:05:38,159 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2023-08-30 13:05:38,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:05:38,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 13:05:38,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 13:05:38,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 13:05:38,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 13:05:38,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 13:05:38,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 13:05:38,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 13:05:38,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 13:05:38,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 13:05:38,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 13:05:38,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 13:05:38,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 13:05:38,165 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 13:05:38,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 13:05:38,166 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 13:05:38,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:05:38,166 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 13:05:38,173 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:05:38,173 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:05:38,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:05:38 BasicIcfg [2023-08-30 13:05:38,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:05:38,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:05:38,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:05:38,183 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:05:38,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:05:34" (3/4) ... [2023-08-30 13:05:38,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:05:38,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:05:38,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:05:38,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:05:38,195 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 13:05:38,195 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 13:05:38,195 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:05:38,196 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:05:38,231 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:05:38,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:05:38,232 INFO L158 Benchmark]: Toolchain (without parser) took 4691.31ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 43.9MB in the beginning and 55.9MB in the end (delta: -12.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2023-08-30 13:05:38,232 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:05:38,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.74ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 40.4MB in the end (delta: 3.3MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2023-08-30 13:05:38,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.36ms. Allocated memory is still 67.1MB. Free memory was 40.4MB in the beginning and 38.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:05:38,233 INFO L158 Benchmark]: Boogie Preprocessor took 49.14ms. Allocated memory is still 67.1MB. Free memory was 38.3MB in the beginning and 37.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:05:38,233 INFO L158 Benchmark]: RCFGBuilder took 459.94ms. Allocated memory is still 67.1MB. Free memory was 36.7MB in the beginning and 39.5MB in the end (delta: -2.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-08-30 13:05:38,233 INFO L158 Benchmark]: TraceAbstraction took 3547.99ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 38.9MB in the beginning and 58.0MB in the end (delta: -19.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2023-08-30 13:05:38,234 INFO L158 Benchmark]: Witness Printer took 49.02ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:05:38,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.74ms. Allocated memory is still 67.1MB. Free memory was 43.7MB in the beginning and 40.4MB in the end (delta: 3.3MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.36ms. Allocated memory is still 67.1MB. Free memory was 40.4MB in the beginning and 38.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.14ms. Allocated memory is still 67.1MB. Free memory was 38.3MB in the beginning and 37.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 459.94ms. Allocated memory is still 67.1MB. Free memory was 36.7MB in the beginning and 39.5MB in the end (delta: -2.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3547.99ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 38.9MB in the beginning and 58.0MB in the end (delta: -19.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Witness Printer took 49.02ms. Allocated memory is still 100.7MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 94 PlacesBefore, 33 PlacesAfterwards, 86 TransitionsBefore, 24 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 73 TotalNumberOfCompositions, 5695 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2565, independent: 2384, independent conditional: 0, independent unconditional: 2384, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1150, independent: 1106, independent conditional: 0, independent unconditional: 1106, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2565, independent: 1278, independent conditional: 0, independent unconditional: 1278, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 1150, unknown conditional: 0, unknown unconditional: 1150] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 733]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 750]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 118 locations, 15 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 189 IncrementalHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 7 mSDtfsCounter, 189 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:05:38,261 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