./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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 2b11be791089901ed5596869d293da40c27b85c1e89c21a55cf2181db7595687 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:25:41,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:25:41,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:25:41,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:25:41,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:25:41,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:25:41,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:25:41,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:25:41,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:25:41,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:25:41,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:25:41,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:25:41,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:25:41,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:25:41,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:25:41,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:25:41,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:25:41,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:25:41,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:25:41,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:25:41,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:25:41,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:25:41,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:25:41,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:25:41,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:25:41,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:25:41,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:25:41,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:25:41,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:25:41,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:25:41,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:25:41,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:25:41,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:25:41,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:25:41,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:25:41,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:25:41,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:25:41,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:25:41,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:25:41,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:25:41,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:25:41,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:25:41,865 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:25:41,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:25:41,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:25:41,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:25:41,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:25:41,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:25:41,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:25:41,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:25:41,869 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:25:41,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:25:41,870 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:25:41,870 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:25:41,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:25:41,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:25:41,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:25:41,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:25:41,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:25:41,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:25:41,871 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:25:41,871 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:25:41,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:25:41,872 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:25:41,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:25:41,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:25:41,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:25:41,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:25:41,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:25:41,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:25:41,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:25:41,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:25:41,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:25:41,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:25:41,874 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:25:41,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:25:41,875 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:25:41,875 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:25:41,875 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:25:41,875 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b11be791089901ed5596869d293da40c27b85c1e89c21a55cf2181db7595687 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:25:42,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:25:42,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:25:42,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:25:42,223 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:25:42,224 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:25:42,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-09-01 05:25:43,369 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:25:43,632 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:25:43,633 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-09-01 05:25:43,663 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d861630e1/509bf9f98b0a48448af18bf5832e6d88/FLAG1d6526434 [2023-09-01 05:25:43,682 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d861630e1/509bf9f98b0a48448af18bf5832e6d88 [2023-09-01 05:25:43,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:25:43,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:25:43,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:25:43,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:25:43,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:25:43,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:25:43" (1/1) ... [2023-09-01 05:25:43,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8d9dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:43, skipping insertion in model container [2023-09-01 05:25:43,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:25:43" (1/1) ... [2023-09-01 05:25:43,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:25:43,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:25:43,921 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/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1039,1052] [2023-09-01 05:25:44,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:25:44,155 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:25:44,170 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/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1039,1052] [2023-09-01 05:25:44,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:25:44,287 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:25:44,288 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:25:44,293 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:25:44,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44 WrapperNode [2023-09-01 05:25:44,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:25:44,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:25:44,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:25:44,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:25:44,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,344 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2023-09-01 05:25:44,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:25:44,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:25:44,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:25:44,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:25:44,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,378 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:25:44,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:25:44,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:25:44,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:25:44,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (1/1) ... [2023-09-01 05:25:44,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:25:44,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:25:44,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 05:25:44,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 05:25:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:25:44,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:25:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:25:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:25:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:25:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:25:44,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:25:44,460 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:25:44,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:25:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:25:44,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:25:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:25:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:25:44,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:25:44,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:25:44,463 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:25:44,671 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:25:44,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:25:44,984 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:25:45,182 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:25:45,182 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:25:45,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:45 BoogieIcfgContainer [2023-09-01 05:25:45,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:25:45,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:25:45,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:25:45,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:25:45,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:25:43" (1/3) ... [2023-09-01 05:25:45,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17458dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:25:45, skipping insertion in model container [2023-09-01 05:25:45,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:25:44" (2/3) ... [2023-09-01 05:25:45,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17458dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:25:45, skipping insertion in model container [2023-09-01 05:25:45,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:45" (3/3) ... [2023-09-01 05:25:45,192 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-09-01 05:25:45,200 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:25:45,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:25:45,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-09-01 05:25:45,209 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:25:45,268 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:25:45,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 241 flow [2023-09-01 05:25:45,379 INFO L130 PetriNetUnfolder]: 2/110 cut-off events. [2023-09-01 05:25:45,379 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:45,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-09-01 05:25:45,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 113 transitions, 241 flow [2023-09-01 05:25:45,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 110 transitions, 229 flow [2023-09-01 05:25:45,393 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:25:45,406 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 110 transitions, 229 flow [2023-09-01 05:25:45,410 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 110 transitions, 229 flow [2023-09-01 05:25:45,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 110 transitions, 229 flow [2023-09-01 05:25:45,451 INFO L130 PetriNetUnfolder]: 2/110 cut-off events. [2023-09-01 05:25:45,452 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:45,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2023-09-01 05:25:45,455 INFO L119 LiptonReduction]: Number of co-enabled transitions 2496 [2023-09-01 05:25:49,415 INFO L134 LiptonReduction]: Checked pairs total: 8708 [2023-09-01 05:25:49,415 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-09-01 05:25:49,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:25:49,441 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;@57decad0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:25:49,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-09-01 05:25:49,448 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-09-01 05:25:49,448 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:25:49,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:49,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:49,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:25:49,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash -61842706, now seen corresponding path program 1 times [2023-09-01 05:25:49,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:49,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94794526] [2023-09-01 05:25:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:49,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:49,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:49,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:49,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94794526] [2023-09-01 05:25:49,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94794526] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:49,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:49,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:25:49,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857685453] [2023-09-01 05:25:49,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:49,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:25:49,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:49,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:25:49,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:25:49,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 204 [2023-09-01 05:25:49,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:49,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:49,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 204 [2023-09-01 05:25:49,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:50,473 INFO L130 PetriNetUnfolder]: 1557/2373 cut-off events. [2023-09-01 05:25:50,474 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-09-01 05:25:50,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4818 conditions, 2373 events. 1557/2373 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 11167 event pairs, 601 based on Foata normal form. 0/2049 useless extension candidates. Maximal degree in co-relation 4807. Up to 1565 conditions per place. [2023-09-01 05:25:50,489 INFO L137 encePairwiseOnDemand]: 194/204 looper letters, 42 selfloop transitions, 4 changer transitions 0/47 dead transitions. [2023-09-01 05:25:50,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 201 flow [2023-09-01 05:25:50,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:25:50,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:25:50,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2023-09-01 05:25:50,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5163398692810458 [2023-09-01 05:25:50,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2023-09-01 05:25:50,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2023-09-01 05:25:50,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:50,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2023-09-01 05:25:50,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:50,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:50,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 204.0) internal successors, (816), 4 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:50,515 INFO L175 Difference]: Start difference. First operand has 38 places, 28 transitions, 65 flow. Second operand 3 states and 316 transitions. [2023-09-01 05:25:50,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 201 flow [2023-09-01 05:25:50,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 47 transitions, 196 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:25:50,520 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 98 flow [2023-09-01 05:25:50,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2023-09-01 05:25:50,525 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-09-01 05:25:50,525 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 98 flow [2023-09-01 05:25:50,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:50,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:50,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:50,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:25:50,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:25:50,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:50,527 INFO L85 PathProgramCache]: Analyzing trace with hash 423875875, now seen corresponding path program 1 times [2023-09-01 05:25:50,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:50,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207479078] [2023-09-01 05:25:50,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:50,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:50,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:50,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:50,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207479078] [2023-09-01 05:25:50,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207479078] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:50,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:50,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:25:50,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755239132] [2023-09-01 05:25:50,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:50,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:25:50,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:50,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:25:50,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:25:50,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 204 [2023-09-01 05:25:50,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:50,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:50,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 204 [2023-09-01 05:25:50,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:51,130 INFO L130 PetriNetUnfolder]: 1313/1981 cut-off events. [2023-09-01 05:25:51,130 INFO L131 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2023-09-01 05:25:51,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4714 conditions, 1981 events. 1313/1981 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8896 event pairs, 553 based on Foata normal form. 0/1841 useless extension candidates. Maximal degree in co-relation 4703. Up to 1172 conditions per place. [2023-09-01 05:25:51,142 INFO L137 encePairwiseOnDemand]: 197/204 looper letters, 39 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-09-01 05:25:51,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 208 flow [2023-09-01 05:25:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:25:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:25:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2023-09-01 05:25:51,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4877450980392157 [2023-09-01 05:25:51,146 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 398 transitions. [2023-09-01 05:25:51,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 398 transitions. [2023-09-01 05:25:51,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:51,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 398 transitions. [2023-09-01 05:25:51,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,151 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,151 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 98 flow. Second operand 4 states and 398 transitions. [2023-09-01 05:25:51,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 208 flow [2023-09-01 05:25:51,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 204 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:25:51,153 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 90 flow [2023-09-01 05:25:51,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-09-01 05:25:51,154 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-09-01 05:25:51,154 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 90 flow [2023-09-01 05:25:51,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:51,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:51,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:25:51,155 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:25:51,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:51,156 INFO L85 PathProgramCache]: Analyzing trace with hash 423875876, now seen corresponding path program 1 times [2023-09-01 05:25:51,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:51,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742770632] [2023-09-01 05:25:51,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:51,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:51,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:51,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742770632] [2023-09-01 05:25:51,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742770632] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:51,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:51,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:25:51,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258122409] [2023-09-01 05:25:51,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:51,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:25:51,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:51,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:25:51,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:25:51,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 204 [2023-09-01 05:25:51,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:51,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 204 [2023-09-01 05:25:51,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:51,582 INFO L130 PetriNetUnfolder]: 1120/1676 cut-off events. [2023-09-01 05:25:51,583 INFO L131 PetriNetUnfolder]: For 470/470 co-relation queries the response was YES. [2023-09-01 05:25:51,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3953 conditions, 1676 events. 1120/1676 cut-off events. For 470/470 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7320 event pairs, 525 based on Foata normal form. 0/1660 useless extension candidates. Maximal degree in co-relation 3941. Up to 806 conditions per place. [2023-09-01 05:25:51,593 INFO L137 encePairwiseOnDemand]: 197/204 looper letters, 50 selfloop transitions, 7 changer transitions 3/61 dead transitions. [2023-09-01 05:25:51,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 61 transitions, 288 flow [2023-09-01 05:25:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:25:51,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:25:51,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 415 transitions. [2023-09-01 05:25:51,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.508578431372549 [2023-09-01 05:25:51,595 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 415 transitions. [2023-09-01 05:25:51,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 415 transitions. [2023-09-01 05:25:51,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:51,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 415 transitions. [2023-09-01 05:25:51,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,600 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 204.0) internal successors, (1020), 5 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,600 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 90 flow. Second operand 4 states and 415 transitions. [2023-09-01 05:25:51,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 61 transitions, 288 flow [2023-09-01 05:25:51,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 61 transitions, 283 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:25:51,603 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 111 flow [2023-09-01 05:25:51,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-09-01 05:25:51,604 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-09-01 05:25:51,604 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 111 flow [2023-09-01 05:25:51,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:25:51,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:25:51,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:25:51,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-09-01 05:25:51,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:25:51,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1034569270, now seen corresponding path program 1 times [2023-09-01 05:25:51,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:25:51,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879521779] [2023-09-01 05:25:51,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:25:51,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:25:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:25:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:25:51,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:25:51,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879521779] [2023-09-01 05:25:51,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879521779] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:25:51,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:25:51,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:25:51,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939279491] [2023-09-01 05:25:51,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:25:51,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:25:51,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:25:51,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:25:51,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:25:51,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 204 [2023-09-01 05:25:51,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:51,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:25:51,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 204 [2023-09-01 05:25:51,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:25:52,079 INFO L130 PetriNetUnfolder]: 1100/1640 cut-off events. [2023-09-01 05:25:52,080 INFO L131 PetriNetUnfolder]: For 1014/1014 co-relation queries the response was YES. [2023-09-01 05:25:52,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4264 conditions, 1640 events. 1100/1640 cut-off events. For 1014/1014 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7188 event pairs, 525 based on Foata normal form. 12/1648 useless extension candidates. Maximal degree in co-relation 4251. Up to 806 conditions per place. [2023-09-01 05:25:52,085 INFO L137 encePairwiseOnDemand]: 197/204 looper letters, 0 selfloop transitions, 0 changer transitions 55/55 dead transitions. [2023-09-01 05:25:52,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 267 flow [2023-09-01 05:25:52,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:25:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:25:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 497 transitions. [2023-09-01 05:25:52,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4872549019607843 [2023-09-01 05:25:52,087 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 497 transitions. [2023-09-01 05:25:52,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 497 transitions. [2023-09-01 05:25:52,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:25:52,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 497 transitions. [2023-09-01 05:25:52,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 99.4) internal successors, (497), 5 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:52,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:52,092 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 204.0) internal successors, (1224), 6 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:52,092 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 111 flow. Second operand 5 states and 497 transitions. [2023-09-01 05:25:52,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 267 flow [2023-09-01 05:25:52,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 55 transitions, 243 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-09-01 05:25:52,096 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-09-01 05:25:52,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=204, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-09-01 05:25:52,097 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2023-09-01 05:25:52,097 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-09-01 05:25:52,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.6) internal successors, (458), 5 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:25:52,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-09-01 05:25:52,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-09-01 05:25:52,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-09-01 05:25:52,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-09-01 05:25:52,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-09-01 05:25:52,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-09-01 05:25:52,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-09-01 05:25:52,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-09-01 05:25:52,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-09-01 05:25:52,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-09-01 05:25:52,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-09-01 05:25:52,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-09-01 05:25:52,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-09-01 05:25:52,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-09-01 05:25:52,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-09-01 05:25:52,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:25:52,104 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-09-01 05:25:52,109 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:25:52,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:25:52,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:25:52 BasicIcfg [2023-09-01 05:25:52,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:25:52,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:25:52,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:25:52,114 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:25:52,114 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:25:45" (3/4) ... [2023-09-01 05:25:52,116 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:25:52,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:25:52,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:25:52,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:25:52,125 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-09-01 05:25:52,126 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-09-01 05:25:52,126 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 05:25:52,126 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:25:52,160 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:25:52,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:25:52,161 INFO L158 Benchmark]: Toolchain (without parser) took 8474.64ms. Allocated memory was 67.1MB in the beginning and 199.2MB in the end (delta: 132.1MB). Free memory was 40.7MB in the beginning and 145.4MB in the end (delta: -104.8MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-09-01 05:25:52,161 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:25:52,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.01ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 40.7MB in the beginning and 59.9MB in the end (delta: -19.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-09-01 05:25:52,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.22ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 57.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:25:52,162 INFO L158 Benchmark]: Boogie Preprocessor took 37.98ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:25:52,163 INFO L158 Benchmark]: RCFGBuilder took 800.13ms. Allocated memory is still 92.3MB. Free memory was 54.9MB in the beginning and 56.0MB in the end (delta: -1.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-09-01 05:25:52,163 INFO L158 Benchmark]: TraceAbstraction took 6926.29ms. Allocated memory was 92.3MB in the beginning and 199.2MB in the end (delta: 107.0MB). Free memory was 55.5MB in the beginning and 148.6MB in the end (delta: -93.1MB). Peak memory consumption was 112.9MB. Max. memory is 16.1GB. [2023-09-01 05:25:52,163 INFO L158 Benchmark]: Witness Printer took 47.00ms. Allocated memory is still 199.2MB. Free memory was 148.6MB in the beginning and 145.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:25:52,165 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 67.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.01ms. Allocated memory was 67.1MB in the beginning and 92.3MB in the end (delta: 25.2MB). Free memory was 40.7MB in the beginning and 59.9MB in the end (delta: -19.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.22ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 57.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.98ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 54.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 800.13ms. Allocated memory is still 92.3MB. Free memory was 54.9MB in the beginning and 56.0MB in the end (delta: -1.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6926.29ms. Allocated memory was 92.3MB in the beginning and 199.2MB in the end (delta: 107.0MB). Free memory was 55.5MB in the beginning and 148.6MB in the end (delta: -93.1MB). Peak memory consumption was 112.9MB. Max. memory is 16.1GB. * Witness Printer took 47.00ms. Allocated memory is still 199.2MB. Free memory was 148.6MB in the beginning and 145.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 118 PlacesBefore, 38 PlacesAfterwards, 110 TransitionsBefore, 28 TransitionsAfterwards, 2496 CoEnabledTransitionPairs, 7 FixpointIterations, 38 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 91 TotalNumberOfCompositions, 8708 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3366, independent: 3087, independent conditional: 0, independent unconditional: 3087, dependent: 279, dependent conditional: 0, dependent unconditional: 279, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1370, independent: 1309, independent conditional: 0, independent unconditional: 1309, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3366, independent: 1778, independent conditional: 0, independent unconditional: 1778, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 1370, unknown conditional: 0, unknown unconditional: 1370] , Statistics on independence cache: Total cache size (in pairs): 147, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 839]: 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, 146 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: 6.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 274 IncrementalHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 1 mSDtfsCounter, 274 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=111occurred 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, 0.6s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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! [2023-09-01 05:25:52,189 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