./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe001_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/safe001_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 d13e05ad1104a4a5317ff09857a34619cbd86966f0892caf9775309ccc15230d --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 13:02:20,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:02:20,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:02:20,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:02:20,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:02:20,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:02:20,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:02:20,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:02:20,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:02:20,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:02:20,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:02:20,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:02:20,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:02:20,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:02:20,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:02:20,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:02:20,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:02:20,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:02:20,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:02:20,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:02:20,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:02:20,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:02:20,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:02:20,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:02:20,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:02:20,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:02:20,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:02:20,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:02:20,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:02:20,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:02:20,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:02:20,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:02:20,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:02:20,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:02:20,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:02:20,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:02:20,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:02:20,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:02:20,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:02:20,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:02:20,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:02:20,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:02:20,847 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:02:20,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:02:20,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:02:20,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:02:20,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:02:20,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:02:20,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:02:20,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:02:20,851 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:02:20,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:02:20,852 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:02:20,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:02:20,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:02:20,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:02:20,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:02:20,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:02:20,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:02:20,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:02:20,854 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:02:20,854 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:02:20,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:02:20,855 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:02:20,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:02:20,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:02:20,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:02:20,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:02:20,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:02:20,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:02:20,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:02:20,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:02:20,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:02:20,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:02:20,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:02:20,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:02:20,858 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:02:20,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:02:20,858 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:02:20,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13e05ad1104a4a5317ff09857a34619cbd86966f0892caf9775309ccc15230d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:02:21,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:02:21,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:02:21,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:02:21,191 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:02:21,193 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:02:21,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.i [2023-08-30 13:02:22,429 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:02:22,728 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:02:22,729 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.i [2023-08-30 13:02:22,743 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd75cc32/1db5413fe4a348329a614de7c573683c/FLAG435d2b937 [2023-08-30 13:02:22,763 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd75cc32/1db5413fe4a348329a614de7c573683c [2023-08-30 13:02:22,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:02:22,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:02:22,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:02:22,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:02:22,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:02:22,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:02:22" (1/1) ... [2023-08-30 13:02:22,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad98248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:22, skipping insertion in model container [2023-08-30 13:02:22,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:02:22" (1/1) ... [2023-08-30 13:02:22,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:02:22,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:02:22,983 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/safe001_tso.i[945,958] [2023-08-30 13:02:23,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:02:23,145 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:02:23,158 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/safe001_tso.i[945,958] [2023-08-30 13:02:23,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:02:23,241 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:02:23,241 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:02:23,247 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:02:23,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23 WrapperNode [2023-08-30 13:02:23,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:02:23,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:02:23,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:02:23,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:02:23,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,290 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-08-30 13:02:23,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:02:23,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:02:23,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:02:23,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:02:23,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,313 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:02:23,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:02:23,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:02:23,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:02:23,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (1/1) ... [2023-08-30 13:02:23,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:02:23,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:02:23,348 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 13:02:23,357 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 13:02:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:02:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:02:23,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:02:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:02:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:02:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:02:23,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:02:23,381 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:02:23,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:02:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:02:23,382 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:02:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:02:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:02:23,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:02:23,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:02:23,384 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 13:02:23,511 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:02:23,513 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:02:23,760 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:02:23,808 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:02:23,812 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:02:23,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:02:23 BoogieIcfgContainer [2023-08-30 13:02:23,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:02:23,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:02:23,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:02:23,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:02:23,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:02:22" (1/3) ... [2023-08-30 13:02:23,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47df1fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:02:23, skipping insertion in model container [2023-08-30 13:02:23,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:02:23" (2/3) ... [2023-08-30 13:02:23,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47df1fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:02:23, skipping insertion in model container [2023-08-30 13:02:23,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:02:23" (3/3) ... [2023-08-30 13:02:23,824 INFO L112 eAbstractionObserver]: Analyzing ICFG safe001_tso.i [2023-08-30 13:02:23,832 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:02:23,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:02:23,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 13:02:23,842 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:02:23,927 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:02:23,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 89 transitions, 193 flow [2023-08-30 13:02:24,021 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-30 13:02:24,021 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:02:24,026 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 66 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 13:02:24,026 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 89 transitions, 193 flow [2023-08-30 13:02:24,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 86 transitions, 181 flow [2023-08-30 13:02:24,035 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:02:24,045 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-30 13:02:24,049 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 86 transitions, 181 flow [2023-08-30 13:02:24,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 86 transitions, 181 flow [2023-08-30 13:02:24,081 INFO L130 PetriNetUnfolder]: 2/86 cut-off events. [2023-08-30 13:02:24,082 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:02:24,082 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 65 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 13:02:24,085 INFO L119 LiptonReduction]: Number of co-enabled transitions 2016 [2023-08-30 13:02:26,282 INFO L134 LiptonReduction]: Checked pairs total: 5534 [2023-08-30 13:02:26,283 INFO L136 LiptonReduction]: Total number of compositions: 70 [2023-08-30 13:02:26,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:02:26,299 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;@34da0c84, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:02:26,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 13:02:26,302 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:02:26,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:02:26,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:02:26,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:02:26,304 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 13:02:26,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:02:26,308 INFO L85 PathProgramCache]: Analyzing trace with hash 309903947, now seen corresponding path program 1 times [2023-08-30 13:02:26,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:02:26,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857998519] [2023-08-30 13:02:26,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:02:26,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:02:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:02:26,480 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 13:02:26,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:02:26,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857998519] [2023-08-30 13:02:26,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857998519] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:02:26,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:02:26,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:02:26,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239412844] [2023-08-30 13:02:26,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:02:26,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:02:26,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:02:26,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:02:26,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:02:26,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 159 [2023-08-30 13:02:26,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 55 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 13:02:26,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:02:26,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 159 [2023-08-30 13:02:26,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:02:26,674 INFO L130 PetriNetUnfolder]: 364/612 cut-off events. [2023-08-30 13:02:26,675 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 13:02:26,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1255 conditions, 612 events. 364/612 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2664 event pairs, 96 based on Foata normal form. 0/435 useless extension candidates. Maximal degree in co-relation 1244. Up to 529 conditions per place. [2023-08-30 13:02:26,681 INFO L137 encePairwiseOnDemand]: 149/159 looper letters, 28 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2023-08-30 13:02:26,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 149 flow [2023-08-30 13:02:26,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:02:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:02:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2023-08-30 13:02:26,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5387840670859538 [2023-08-30 13:02:26,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 257 transitions. [2023-08-30 13:02:26,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 257 transitions. [2023-08-30 13:02:26,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:02:26,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 257 transitions. [2023-08-30 13:02:26,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 13:02:26,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 13:02:26,705 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 159.0) internal successors, (636), 4 states have internal predecessors, (636), 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 13:02:26,706 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 55 flow. Second operand 3 states and 257 transitions. [2023-08-30 13:02:26,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 149 flow [2023-08-30 13:02:26,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:02:26,710 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 88 flow [2023-08-30 13:02:26,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, 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=88, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-30 13:02:26,715 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2023-08-30 13:02:26,715 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 88 flow [2023-08-30 13:02:26,715 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 13:02:26,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:02:26,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:02:26,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:02:26,716 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 13:02:26,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:02:26,717 INFO L85 PathProgramCache]: Analyzing trace with hash 224113505, now seen corresponding path program 1 times [2023-08-30 13:02:26,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:02:26,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064246671] [2023-08-30 13:02:26,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:02:26,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:02:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:02:26,852 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 13:02:26,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:02:26,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064246671] [2023-08-30 13:02:26,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064246671] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:02:26,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:02:26,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:02:26,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802503671] [2023-08-30 13:02:26,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:02:26,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:02:26,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:02:26,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:02:26,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:02:26,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 159 [2023-08-30 13:02:26,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 88 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 13:02:26,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:02:26,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 159 [2023-08-30 13:02:26,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:02:26,964 INFO L130 PetriNetUnfolder]: 249/421 cut-off events. [2023-08-30 13:02:26,964 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-08-30 13:02:26,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 421 events. 249/421 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1605 event pairs, 60 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 1084. Up to 337 conditions per place. [2023-08-30 13:02:26,969 INFO L137 encePairwiseOnDemand]: 152/159 looper letters, 25 selfloop transitions, 4 changer transitions 0/32 dead transitions. [2023-08-30 13:02:26,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 32 transitions, 156 flow [2023-08-30 13:02:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:02:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:02:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 324 transitions. [2023-08-30 13:02:26,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5094339622641509 [2023-08-30 13:02:26,972 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 324 transitions. [2023-08-30 13:02:26,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 324 transitions. [2023-08-30 13:02:26,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:02:26,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 324 transitions. [2023-08-30 13:02:26,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:02:26,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 13:02:26,976 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 13:02:26,977 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 88 flow. Second operand 4 states and 324 transitions. [2023-08-30 13:02:26,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 32 transitions, 156 flow [2023-08-30 13:02:26,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:02:26,978 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 80 flow [2023-08-30 13:02:26,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=72, 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=80, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2023-08-30 13:02:26,979 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-08-30 13:02:26,979 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 80 flow [2023-08-30 13:02:26,980 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 13:02:26,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:02:26,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:02:26,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:02:26,980 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 13:02:26,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:02:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash 224289276, now seen corresponding path program 1 times [2023-08-30 13:02:26,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:02:26,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246087542] [2023-08-30 13:02:26,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:02:26,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:02:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:02:27,077 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 13:02:27,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:02:27,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246087542] [2023-08-30 13:02:27,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246087542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:02:27,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:02:27,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:02:27,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830515130] [2023-08-30 13:02:27,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:02:27,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:02:27,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:02:27,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:02:27,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:02:27,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 159 [2023-08-30 13:02:27,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 80 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 13:02:27,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:02:27,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 159 [2023-08-30 13:02:27,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:02:27,168 INFO L130 PetriNetUnfolder]: 170/293 cut-off events. [2023-08-30 13:02:27,168 INFO L131 PetriNetUnfolder]: For 138/138 co-relation queries the response was YES. [2023-08-30 13:02:27,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 760 conditions, 293 events. 170/293 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1003 event pairs, 39 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 748. Up to 120 conditions per place. [2023-08-30 13:02:27,170 INFO L137 encePairwiseOnDemand]: 152/159 looper letters, 29 selfloop transitions, 7 changer transitions 3/42 dead transitions. [2023-08-30 13:02:27,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 42 transitions, 208 flow [2023-08-30 13:02:27,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:02:27,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:02:27,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 334 transitions. [2023-08-30 13:02:27,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5251572327044025 [2023-08-30 13:02:27,172 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 334 transitions. [2023-08-30 13:02:27,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 334 transitions. [2023-08-30 13:02:27,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:02:27,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 334 transitions. [2023-08-30 13:02:27,174 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) [2023-08-30 13:02:27,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 13:02:27,176 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 159.0) internal successors, (795), 5 states have internal predecessors, (795), 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 13:02:27,176 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 80 flow. Second operand 4 states and 334 transitions. [2023-08-30 13:02:27,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 42 transitions, 208 flow [2023-08-30 13:02:27,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 203 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:02:27,178 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 101 flow [2023-08-30 13:02:27,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=75, 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=101, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2023-08-30 13:02:27,179 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2023-08-30 13:02:27,179 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 101 flow [2023-08-30 13:02:27,179 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 13:02:27,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:02:27,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:02:27,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:02:27,180 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 13:02:27,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:02:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash 329540454, now seen corresponding path program 1 times [2023-08-30 13:02:27,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:02:27,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494725452] [2023-08-30 13:02:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:02:27,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:02:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:02:27,274 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 13:02:27,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:02:27,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494725452] [2023-08-30 13:02:27,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494725452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:02:27,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:02:27,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:02:27,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635662118] [2023-08-30 13:02:27,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:02:27,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:02:27,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:02:27,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:02:27,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:02:27,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 159 [2023-08-30 13:02:27,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 101 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 13:02:27,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:02:27,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 159 [2023-08-30 13:02:27,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:02:27,364 INFO L130 PetriNetUnfolder]: 156/267 cut-off events. [2023-08-30 13:02:27,364 INFO L131 PetriNetUnfolder]: For 276/276 co-relation queries the response was YES. [2023-08-30 13:02:27,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 267 events. 156/267 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 916 event pairs, 39 based on Foata normal form. 9/269 useless extension candidates. Maximal degree in co-relation 804. Up to 120 conditions per place. [2023-08-30 13:02:27,366 INFO L137 encePairwiseOnDemand]: 152/159 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2023-08-30 13:02:27,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 187 flow [2023-08-30 13:02:27,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:02:27,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:02:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 401 transitions. [2023-08-30 13:02:27,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044025157232704 [2023-08-30 13:02:27,373 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 401 transitions. [2023-08-30 13:02:27,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 401 transitions. [2023-08-30 13:02:27,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:02:27,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 401 transitions. [2023-08-30 13:02:27,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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 13:02:27,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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 13:02:27,376 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 159.0) internal successors, (954), 6 states have internal predecessors, (954), 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 13:02:27,376 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 101 flow. Second operand 5 states and 401 transitions. [2023-08-30 13:02:27,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 187 flow [2023-08-30 13:02:27,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 36 transitions, 163 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 13:02:27,379 INFO L231 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2023-08-30 13:02:27,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2023-08-30 13:02:27,381 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -2 predicate places. [2023-08-30 13:02:27,381 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 0 transitions, 0 flow [2023-08-30 13:02:27,381 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 13:02:27,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 13:02:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 13:02:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 13:02:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 13:02:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 13:02:27,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 13:02:27,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 13:02:27,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 13:02:27,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 13:02:27,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 13:02:27,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 13:02:27,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 13:02:27,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 13:02:27,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 13:02:27,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 13:02:27,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:02:27,387 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 13:02:27,394 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:02:27,394 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:02:27,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:02:27 BasicIcfg [2023-08-30 13:02:27,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:02:27,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:02:27,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:02:27,403 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:02:27,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:02:23" (3/4) ... [2023-08-30 13:02:27,405 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:02:27,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:02:27,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:02:27,410 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:02:27,415 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-08-30 13:02:27,415 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 13:02:27,415 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:02:27,415 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:02:27,452 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:02:27,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:02:27,452 INFO L158 Benchmark]: Toolchain (without parser) took 4685.55ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 49.4MB in the beginning and 50.4MB in the end (delta: -966.8kB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-08-30 13:02:27,453 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 54.5MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:02:27,453 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.62ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 47.3MB in the end (delta: 2.0MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-08-30 13:02:27,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.92ms. Allocated memory is still 73.4MB. Free memory was 47.3MB in the beginning and 45.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:02:27,453 INFO L158 Benchmark]: Boogie Preprocessor took 22.66ms. Allocated memory is still 73.4MB. Free memory was 45.2MB in the beginning and 43.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:02:27,454 INFO L158 Benchmark]: RCFGBuilder took 498.44ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 51.0MB in the end (delta: -7.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-08-30 13:02:27,455 INFO L158 Benchmark]: TraceAbstraction took 3584.23ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 50.6MB in the beginning and 53.3MB in the end (delta: -2.7MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2023-08-30 13:02:27,455 INFO L158 Benchmark]: Witness Printer took 49.35ms. Allocated memory is still 107.0MB. Free memory was 53.3MB in the beginning and 50.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:02:27,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 54.5MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.62ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 47.3MB in the end (delta: 2.0MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.92ms. Allocated memory is still 73.4MB. Free memory was 47.3MB in the beginning and 45.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.66ms. Allocated memory is still 73.4MB. Free memory was 45.2MB in the beginning and 43.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.44ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 51.0MB in the end (delta: -7.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3584.23ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 50.6MB in the beginning and 53.3MB in the end (delta: -2.7MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Witness Printer took 49.35ms. Allocated memory is still 107.0MB. Free memory was 53.3MB in the beginning and 50.4MB in the end (delta: 2.9MB). 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: 2.2s, 94 PlacesBefore, 33 PlacesAfterwards, 86 TransitionsBefore, 23 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 5534 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2108, independent: 1931, independent conditional: 0, independent unconditional: 1931, dependent: 177, dependent conditional: 0, dependent unconditional: 177, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1039, independent: 996, independent conditional: 0, independent unconditional: 996, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2108, independent: 935, independent conditional: 0, independent unconditional: 935, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 1039, unknown conditional: 0, unknown unconditional: 1039] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 731]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 746]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: 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: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 201 IncrementalHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 7 mSDtfsCounter, 201 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=101occurred 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 13:02:27,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE