/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:10,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:10,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:10,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:35:10,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:35:10,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:35:10,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:35:10,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:35:10,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:35:10,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:35:10,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:35:10,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:35:10,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:10,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:10,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:10,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:10,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:10,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:10,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:10,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:10,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:10,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:10,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:10,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:10,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:35:10,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:35:10,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:35:10,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:35:10,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:35:10,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:35:10,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:35:10,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:35:10,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:35:10,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:35:10,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:35:10,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:35:10,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:35:10,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:35:10,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:10,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:10,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:10,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:35:10,667 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:10,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:10,668 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:10,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:10,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:10,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:10,669 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:10,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:10,670 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:10,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:10,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:10,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:10,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:10,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:10,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:10,671 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:10,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:10,671 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:10,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:10,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:10,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:10,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:10,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:10,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:10,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:10,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:10,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:10,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:10,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:10,673 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:10,673 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:10,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:10,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:10,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:10,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:10,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:10,970 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:10,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i [2022-09-16 11:35:11,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9afce0d9/a6624cdd992a4fc999b1f606d556ba00/FLAG6889babd8 [2022-09-16 11:35:11,535 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:11,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i [2022-09-16 11:35:11,553 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9afce0d9/a6624cdd992a4fc999b1f606d556ba00/FLAG6889babd8 [2022-09-16 11:35:11,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9afce0d9/a6624cdd992a4fc999b1f606d556ba00 [2022-09-16 11:35:11,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:11,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:11,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:11,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:11,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:11,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:11" (1/1) ... [2022-09-16 11:35:11,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b9286f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:11, skipping insertion in model container [2022-09-16 11:35:11,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:11" (1/1) ... [2022-09-16 11:35:11,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:11,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:12,139 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i[959,972] [2022-09-16 11:35:12,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:12,394 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:12,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_power.opt_pso.opt.i[959,972] [2022-09-16 11:35:12,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:12,506 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:12,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12 WrapperNode [2022-09-16 11:35:12,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:12,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:12,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:12,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:12,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,586 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 277 [2022-09-16 11:35:12,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:12,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:12,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:12,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:12,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:12,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:12,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:12,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:12,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (1/1) ... [2022-09-16 11:35:12,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:12,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:12,685 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) [2022-09-16 11:35:12,709 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 [2022-09-16 11:35:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:35:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:35:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:35:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:35:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:35:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:35:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:12,731 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:35:12,895 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:12,897 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:13,461 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:13,877 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:13,877 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:13,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:13 BoogieIcfgContainer [2022-09-16 11:35:13,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:13,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:13,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:13,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:13,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:11" (1/3) ... [2022-09-16 11:35:13,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8e530c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:13, skipping insertion in model container [2022-09-16 11:35:13,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:12" (2/3) ... [2022-09-16 11:35:13,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d8e530c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:13, skipping insertion in model container [2022-09-16 11:35:13,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:13" (3/3) ... [2022-09-16 11:35:13,890 INFO L112 eAbstractionObserver]: Analyzing ICFG safe021_power.opt_pso.opt.i [2022-09-16 11:35:13,905 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:13,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-09-16 11:35:13,906 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:13,957 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:35:13,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 119 transitions, 253 flow [2022-09-16 11:35:14,050 INFO L130 PetriNetUnfolder]: 2/116 cut-off events. [2022-09-16 11:35:14,051 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:14,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 116 events. 2/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-09-16 11:35:14,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 119 transitions, 253 flow [2022-09-16 11:35:14,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 116 transitions, 241 flow [2022-09-16 11:35:14,071 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:14,078 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=false, 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;@1c3ed574, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:14,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-09-16 11:35:14,095 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-09-16 11:35:14,095 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:14,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:14,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:14,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:14,101 INFO L85 PathProgramCache]: Analyzing trace with hash 75966280, now seen corresponding path program 1 times [2022-09-16 11:35:14,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:14,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680727164] [2022-09-16 11:35:14,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:14,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:14,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:14,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680727164] [2022-09-16 11:35:14,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680727164] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:14,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:14,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:35:14,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662248378] [2022-09-16 11:35:14,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:14,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:35:14,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:14,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:35:14,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:35:14,416 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 119 [2022-09-16 11:35:14,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 116 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-09-16 11:35:14,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:14,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 119 [2022-09-16 11:35:14,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:14,970 INFO L130 PetriNetUnfolder]: 586/2350 cut-off events. [2022-09-16 11:35:14,971 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-09-16 11:35:14,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3329 conditions, 2350 events. 586/2350 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 20016 event pairs, 353 based on Foata normal form. 96/2051 useless extension candidates. Maximal degree in co-relation 3277. Up to 801 conditions per place. [2022-09-16 11:35:14,999 INFO L137 encePairwiseOnDemand]: 107/119 looper letters, 28 selfloop transitions, 4 changer transitions 0/125 dead transitions. [2022-09-16 11:35:14,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 125 transitions, 329 flow [2022-09-16 11:35:15,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:35:15,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:35:15,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2022-09-16 11:35:15,018 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9243697478991597 [2022-09-16 11:35:15,019 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2022-09-16 11:35:15,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2022-09-16 11:35:15,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:15,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2022-09-16 11:35:15,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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) [2022-09-16 11:35:15,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2022-09-16 11:35:15,037 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2022-09-16 11:35:15,039 INFO L175 Difference]: Start difference. First operand has 124 places, 116 transitions, 241 flow. Second operand 3 states and 330 transitions. [2022-09-16 11:35:15,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 125 transitions, 329 flow [2022-09-16 11:35:15,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 125 transitions, 324 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:15,052 INFO L231 Difference]: Finished difference. Result has 123 places, 116 transitions, 268 flow [2022-09-16 11:35:15,054 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=123, PETRI_TRANSITIONS=116} [2022-09-16 11:35:15,058 INFO L287 CegarLoopForPetriNet]: 124 programPoint places, -1 predicate places. [2022-09-16 11:35:15,058 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 116 transitions, 268 flow [2022-09-16 11:35:15,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2022-09-16 11:35:15,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:15,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:15,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:15,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:15,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:15,061 INFO L85 PathProgramCache]: Analyzing trace with hash 755471835, now seen corresponding path program 1 times [2022-09-16 11:35:15,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:15,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871595749] [2022-09-16 11:35:15,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:15,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:15,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:15,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:15,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871595749] [2022-09-16 11:35:15,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871595749] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:15,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:15,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:15,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648487909] [2022-09-16 11:35:15,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:15,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:15,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:15,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:15,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:15,224 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 119 [2022-09-16 11:35:15,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 116 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2022-09-16 11:35:15,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:15,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 119 [2022-09-16 11:35:15,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:15,521 INFO L130 PetriNetUnfolder]: 420/1240 cut-off events. [2022-09-16 11:35:15,523 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-09-16 11:35:15,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2307 conditions, 1240 events. 420/1240 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 8674 event pairs, 89 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 2255. Up to 387 conditions per place. [2022-09-16 11:35:15,545 INFO L137 encePairwiseOnDemand]: 109/119 looper letters, 33 selfloop transitions, 10 changer transitions 3/139 dead transitions. [2022-09-16 11:35:15,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 139 transitions, 424 flow [2022-09-16 11:35:15,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:15,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:15,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2022-09-16 11:35:15,549 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9096638655462185 [2022-09-16 11:35:15,549 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2022-09-16 11:35:15,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2022-09-16 11:35:15,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:15,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2022-09-16 11:35:15,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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) [2022-09-16 11:35:15,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:15,554 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:15,554 INFO L175 Difference]: Start difference. First operand has 123 places, 116 transitions, 268 flow. Second operand 4 states and 433 transitions. [2022-09-16 11:35:15,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 139 transitions, 424 flow [2022-09-16 11:35:15,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 139 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:35:15,560 INFO L231 Difference]: Finished difference. Result has 127 places, 119 transitions, 324 flow [2022-09-16 11:35:15,560 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=127, PETRI_TRANSITIONS=119} [2022-09-16 11:35:15,561 INFO L287 CegarLoopForPetriNet]: 124 programPoint places, 3 predicate places. [2022-09-16 11:35:15,561 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 119 transitions, 324 flow [2022-09-16 11:35:15,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2022-09-16 11:35:15,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:15,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:15,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:15,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:15,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:15,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1063708626, now seen corresponding path program 1 times [2022-09-16 11:35:15,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:15,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711228219] [2022-09-16 11:35:15,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:15,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:15,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:15,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711228219] [2022-09-16 11:35:15,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711228219] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:15,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:15,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:35:15,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464431839] [2022-09-16 11:35:15,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:15,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:35:15,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:15,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:35:15,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:35:15,686 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 119 [2022-09-16 11:35:15,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 119 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2022-09-16 11:35:15,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:15,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 119 [2022-09-16 11:35:15,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:16,003 INFO L130 PetriNetUnfolder]: 282/1298 cut-off events. [2022-09-16 11:35:16,003 INFO L131 PetriNetUnfolder]: For 749/749 co-relation queries the response was YES. [2022-09-16 11:35:16,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2126 conditions, 1298 events. 282/1298 cut-off events. For 749/749 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9539 event pairs, 151 based on Foata normal form. 70/1289 useless extension candidates. Maximal degree in co-relation 2071. Up to 316 conditions per place. [2022-09-16 11:35:16,013 INFO L137 encePairwiseOnDemand]: 112/119 looper letters, 25 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2022-09-16 11:35:16,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 122 transitions, 362 flow [2022-09-16 11:35:16,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:35:16,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:35:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 416 transitions. [2022-09-16 11:35:16,016 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8739495798319328 [2022-09-16 11:35:16,016 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 416 transitions. [2022-09-16 11:35:16,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 416 transitions. [2022-09-16 11:35:16,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:16,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 416 transitions. [2022-09-16 11:35:16,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 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) [2022-09-16 11:35:16,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:16,019 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:16,019 INFO L175 Difference]: Start difference. First operand has 127 places, 119 transitions, 324 flow. Second operand 4 states and 416 transitions. [2022-09-16 11:35:16,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 122 transitions, 362 flow [2022-09-16 11:35:16,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 122 transitions, 344 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:16,027 INFO L231 Difference]: Finished difference. Result has 124 places, 113 transitions, 272 flow [2022-09-16 11:35:16,027 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=272, PETRI_PLACES=124, PETRI_TRANSITIONS=113} [2022-09-16 11:35:16,029 INFO L287 CegarLoopForPetriNet]: 124 programPoint places, 0 predicate places. [2022-09-16 11:35:16,029 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 113 transitions, 272 flow [2022-09-16 11:35:16,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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) [2022-09-16 11:35:16,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:16,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:16,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:16,030 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-09-16 11:35:16,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:16,031 INFO L85 PathProgramCache]: Analyzing trace with hash 191795155, now seen corresponding path program 1 times [2022-09-16 11:35:16,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:16,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935477841] [2022-09-16 11:35:16,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:16,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:16,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:16,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:16,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935477841] [2022-09-16 11:35:16,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935477841] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:16,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:16,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:35:16,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548079654] [2022-09-16 11:35:16,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:16,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:35:16,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:16,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:35:16,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:35:16,172 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 119 [2022-09-16 11:35:16,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 113 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 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) [2022-09-16 11:35:16,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:16,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 119 [2022-09-16 11:35:16,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:16,358 INFO L130 PetriNetUnfolder]: 273/951 cut-off events. [2022-09-16 11:35:16,359 INFO L131 PetriNetUnfolder]: For 381/381 co-relation queries the response was YES. [2022-09-16 11:35:16,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 951 events. 273/951 cut-off events. For 381/381 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 6261 event pairs, 77 based on Foata normal form. 12/923 useless extension candidates. Maximal degree in co-relation 1633. Up to 199 conditions per place. [2022-09-16 11:35:16,364 INFO L137 encePairwiseOnDemand]: 112/119 looper letters, 0 selfloop transitions, 0 changer transitions 127/127 dead transitions. [2022-09-16 11:35:16,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 127 transitions, 362 flow [2022-09-16 11:35:16,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:35:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:35:16,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 517 transitions. [2022-09-16 11:35:16,366 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8689075630252101 [2022-09-16 11:35:16,366 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 517 transitions. [2022-09-16 11:35:16,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 517 transitions. [2022-09-16 11:35:16,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:16,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 517 transitions. [2022-09-16 11:35:16,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 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) [2022-09-16 11:35:16,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2022-09-16 11:35:16,370 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2022-09-16 11:35:16,370 INFO L175 Difference]: Start difference. First operand has 124 places, 113 transitions, 272 flow. Second operand 5 states and 517 transitions. [2022-09-16 11:35:16,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 127 transitions, 362 flow [2022-09-16 11:35:16,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 127 transitions, 347 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:35:16,372 INFO L231 Difference]: Finished difference. Result has 121 places, 0 transitions, 0 flow [2022-09-16 11:35:16,373 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=121, PETRI_TRANSITIONS=0} [2022-09-16 11:35:16,373 INFO L287 CegarLoopForPetriNet]: 124 programPoint places, -3 predicate places. [2022-09-16 11:35:16,373 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 0 transitions, 0 flow [2022-09-16 11:35:16,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 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) [2022-09-16 11:35:16,377 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-09-16 11:35:16,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-09-16 11:35:16,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-09-16 11:35:16,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-09-16 11:35:16,379 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-09-16 11:35:16,380 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-09-16 11:35:16,381 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-09-16 11:35:16,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:35:16,381 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-09-16 11:35:16,388 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:35:16,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:35:16,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:35:16 BasicIcfg [2022-09-16 11:35:16,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:35:16,398 INFO L158 Benchmark]: Toolchain (without parser) took 4567.72ms. Allocated memory was 170.9MB in the beginning and 237.0MB in the end (delta: 66.1MB). Free memory was 111.5MB in the beginning and 77.7MB in the end (delta: 33.8MB). Peak memory consumption was 100.5MB. Max. memory is 8.0GB. [2022-09-16 11:35:16,398 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 170.9MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:35:16,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.64ms. Allocated memory is still 170.9MB. Free memory was 111.3MB in the beginning and 130.9MB in the end (delta: -19.6MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2022-09-16 11:35:16,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.21ms. Allocated memory is still 170.9MB. Free memory was 130.9MB in the beginning and 127.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:16,399 INFO L158 Benchmark]: Boogie Preprocessor took 60.75ms. Allocated memory is still 170.9MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:35:16,399 INFO L158 Benchmark]: RCFGBuilder took 1231.03ms. Allocated memory was 170.9MB in the beginning and 237.0MB in the end (delta: 66.1MB). Free memory was 125.7MB in the beginning and 146.2MB in the end (delta: -20.5MB). Peak memory consumption was 48.4MB. Max. memory is 8.0GB. [2022-09-16 11:35:16,402 INFO L158 Benchmark]: TraceAbstraction took 2514.52ms. Allocated memory is still 237.0MB. Free memory was 145.7MB in the beginning and 77.7MB in the end (delta: 68.0MB). Peak memory consumption was 67.5MB. Max. memory is 8.0GB. [2022-09-16 11:35:16,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 170.9MB. Free memory is still 129.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 674.64ms. Allocated memory is still 170.9MB. Free memory was 111.3MB in the beginning and 130.9MB in the end (delta: -19.6MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.21ms. Allocated memory is still 170.9MB. Free memory was 130.9MB in the beginning and 127.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.75ms. Allocated memory is still 170.9MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1231.03ms. Allocated memory was 170.9MB in the beginning and 237.0MB in the end (delta: 66.1MB). Free memory was 125.7MB in the beginning and 146.2MB in the end (delta: -20.5MB). Peak memory consumption was 48.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2514.52ms. Allocated memory is still 237.0MB. Free memory was 145.7MB in the beginning and 77.7MB in the end (delta: 68.0MB). Peak memory consumption was 67.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 785]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: 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, 151 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 177 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 177 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=2, 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, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 644 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! [2022-09-16 11:35:16,441 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...