./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix050.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix050.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 a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:00:48,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:00:48,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:00:48,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:00:48,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:00:48,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:00:48,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:00:48,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:00:48,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:00:48,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:00:48,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:00:48,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:00:48,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:00:48,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:00:48,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:00:48,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:00:48,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:00:48,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:00:48,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:00:48,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:00:48,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:00:48,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:00:48,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:00:48,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:00:48,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:00:48,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:00:48,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:00:48,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:00:48,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:00:48,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:00:48,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:00:48,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:00:48,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:00:48,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:00:48,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:00:48,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:00:48,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:00:48,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:00:48,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:00:48,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:00:48,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:00:48,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:00:48,266 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:00:48,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:00:48,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:00:48,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:00:48,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:00:48,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:00:48,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:00:48,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:00:48,270 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:00:48,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:00:48,271 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:00:48,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:00:48,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:00:48,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:00:48,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:00:48,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:00:48,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:00:48,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:00:48,272 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:00:48,272 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:00:48,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:00:48,273 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:00:48,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:00:48,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:00:48,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:00:48,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:00:48,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:00:48,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:00:48,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:00:48,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:00:48,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:00:48,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:00:48,275 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:00:48,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:00:48,275 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:00:48,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:00:48,276 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:00:48,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3c87384db48703a1f350b065ac4130898667537456cdd449d5c78c22c9ba26d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:00:48,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:00:48,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:00:48,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:00:48,608 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:00:48,609 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:00:48,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix050.i [2023-08-30 13:00:49,804 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:00:50,081 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:00:50,082 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix050.i [2023-08-30 13:00:50,099 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dabe3f3f/e2e2b3a6947a4cce86dbc9c9767b0c11/FLAGfb6fbd71e [2023-08-30 13:00:50,113 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dabe3f3f/e2e2b3a6947a4cce86dbc9c9767b0c11 [2023-08-30 13:00:50,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:00:50,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:00:50,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:00:50,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:00:50,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:00:50,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c5e36ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50, skipping insertion in model container [2023-08-30 13:00:50,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:00:50,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:00:50,301 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/mix050.i[940,953] [2023-08-30 13:00:50,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:00:50,524 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:00:50,533 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/mix050.i[940,953] [2023-08-30 13:00:50,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:00:50,634 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:00:50,635 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:00:50,640 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:00:50,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50 WrapperNode [2023-08-30 13:00:50,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:00:50,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:00:50,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:00:50,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:00:50,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,720 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2023-08-30 13:00:50,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:00:50,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:00:50,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:00:50,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:00:50,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:00:50,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:00:50,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:00:50,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:00:50,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (1/1) ... [2023-08-30 13:00:50,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:00:50,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:00:50,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:00:50,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:00:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:00:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:00:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:00:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:00:50,881 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:00:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:00:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:00:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:00:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:00:50,882 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:00:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 13:00:50,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 13:00:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:00:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:00:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:00:50,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:00:50,885 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:00:51,071 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:00:51,073 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:00:51,463 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:00:51,686 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:00:51,692 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:00:51,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:51 BoogieIcfgContainer [2023-08-30 13:00:51,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:00:51,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:00:51,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:00:51,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:00:51,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:00:50" (1/3) ... [2023-08-30 13:00:51,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675008b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:00:51, skipping insertion in model container [2023-08-30 13:00:51,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:50" (2/3) ... [2023-08-30 13:00:51,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675008b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:00:51, skipping insertion in model container [2023-08-30 13:00:51,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:51" (3/3) ... [2023-08-30 13:00:51,704 INFO L112 eAbstractionObserver]: Analyzing ICFG mix050.i [2023-08-30 13:00:51,711 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:00:51,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:00:51,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 13:00:51,720 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:00:51,811 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:00:51,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2023-08-30 13:00:51,911 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-08-30 13:00:51,912 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:51,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 13:00:51,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2023-08-30 13:00:51,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2023-08-30 13:00:51,930 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:00:51,943 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 132 transitions, 276 flow [2023-08-30 13:00:51,945 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 132 transitions, 276 flow [2023-08-30 13:00:51,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 276 flow [2023-08-30 13:00:51,974 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-08-30 13:00:51,975 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:51,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 13:00:51,978 INFO L119 LiptonReduction]: Number of co-enabled transitions 3888 [2023-08-30 13:00:55,797 INFO L134 LiptonReduction]: Checked pairs total: 13965 [2023-08-30 13:00:55,798 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-08-30 13:00:55,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:00:55,816 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;@38131f0d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:00:55,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 13:00:55,820 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 13:00:55,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:55,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:55,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:00:55,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:00:55,826 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:55,826 INFO L85 PathProgramCache]: Analyzing trace with hash -5725087, now seen corresponding path program 1 times [2023-08-30 13:00:55,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:55,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761022774] [2023-08-30 13:00:55,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:55,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:56,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:00:56,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:56,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761022774] [2023-08-30 13:00:56,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761022774] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:56,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:56,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:00:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274995137] [2023-08-30 13:00:56,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:56,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:00:56,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:56,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:00:56,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:00:56,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-08-30 13:00:56,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:56,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:56,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-08-30 13:00:56,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:57,884 INFO L130 PetriNetUnfolder]: 9717/13499 cut-off events. [2023-08-30 13:00:57,884 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2023-08-30 13:00:57,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27273 conditions, 13499 events. 9717/13499 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 73403 event pairs, 2763 based on Foata normal form. 0/10170 useless extension candidates. Maximal degree in co-relation 27261. Up to 11755 conditions per place. [2023-08-30 13:00:57,985 INFO L137 encePairwiseOnDemand]: 226/239 looper letters, 49 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2023-08-30 13:00:57,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 243 flow [2023-08-30 13:00:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:00:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:00:57,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-08-30 13:00:57,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5425383542538355 [2023-08-30 13:00:57,999 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-08-30 13:00:57,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-08-30 13:00:58,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:58,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-08-30 13:00:58,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:58,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:58,012 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:58,014 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 82 flow. Second operand 3 states and 389 transitions. [2023-08-30 13:00:58,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 243 flow [2023-08-30 13:00:58,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:00:58,023 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 125 flow [2023-08-30 13:00:58,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-30 13:00:58,028 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-08-30 13:00:58,028 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 125 flow [2023-08-30 13:00:58,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:58,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:58,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:58,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:00:58,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:00:58,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:58,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2052143268, now seen corresponding path program 1 times [2023-08-30 13:00:58,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:58,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479211438] [2023-08-30 13:00:58,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:58,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:58,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:00:58,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:58,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479211438] [2023-08-30 13:00:58,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479211438] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:58,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:58,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:00:58,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743369435] [2023-08-30 13:00:58,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:58,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:00:58,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:58,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:00:58,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:00:58,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-08-30 13:00:58,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:58,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:58,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-08-30 13:00:58,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:59,200 INFO L130 PetriNetUnfolder]: 6207/8597 cut-off events. [2023-08-30 13:00:59,200 INFO L131 PetriNetUnfolder]: For 483/483 co-relation queries the response was YES. [2023-08-30 13:00:59,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20904 conditions, 8597 events. 6207/8597 cut-off events. For 483/483 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 44241 event pairs, 1715 based on Foata normal form. 0/7442 useless extension candidates. Maximal degree in co-relation 20893. Up to 6852 conditions per place. [2023-08-30 13:00:59,249 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-08-30 13:00:59,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 251 flow [2023-08-30 13:00:59,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:00:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:00:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2023-08-30 13:00:59,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125523012552301 [2023-08-30 13:00:59,253 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 490 transitions. [2023-08-30 13:00:59,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 490 transitions. [2023-08-30 13:00:59,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:59,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 490 transitions. [2023-08-30 13:00:59,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.5) internal successors, (490), 4 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:59,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:59,258 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:59,258 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 125 flow. Second operand 4 states and 490 transitions. [2023-08-30 13:00:59,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 251 flow [2023-08-30 13:00:59,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:00:59,261 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 114 flow [2023-08-30 13:00:59,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-08-30 13:00:59,262 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-30 13:00:59,262 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 114 flow [2023-08-30 13:00:59,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:59,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:59,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:59,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:00:59,264 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:00:59,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:59,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2052143269, now seen corresponding path program 1 times [2023-08-30 13:00:59,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:59,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594858850] [2023-08-30 13:00:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:59,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:00:59,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:59,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594858850] [2023-08-30 13:00:59,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594858850] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:59,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:59,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:00:59,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630932297] [2023-08-30 13:00:59,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:59,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:00:59,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:59,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:00:59,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:00:59,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-08-30 13:00:59,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:59,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:59,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-08-30 13:00:59,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:00,203 INFO L130 PetriNetUnfolder]: 4260/5928 cut-off events. [2023-08-30 13:01:00,203 INFO L131 PetriNetUnfolder]: For 1574/1574 co-relation queries the response was YES. [2023-08-30 13:01:00,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14233 conditions, 5928 events. 4260/5928 cut-off events. For 1574/1574 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 29510 event pairs, 1261 based on Foata normal form. 0/5689 useless extension candidates. Maximal degree in co-relation 14221. Up to 2277 conditions per place. [2023-08-30 13:01:00,232 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 61 selfloop transitions, 9 changer transitions 0/73 dead transitions. [2023-08-30 13:01:00,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 348 flow [2023-08-30 13:01:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:01:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:01:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 510 transitions. [2023-08-30 13:01:00,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5334728033472803 [2023-08-30 13:01:00,234 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 510 transitions. [2023-08-30 13:01:00,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 510 transitions. [2023-08-30 13:01:00,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:00,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 510 transitions. [2023-08-30 13:01:00,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.5) internal successors, (510), 4 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:00,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:00,238 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:00,239 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 114 flow. Second operand 4 states and 510 transitions. [2023-08-30 13:01:00,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 348 flow [2023-08-30 13:01:00,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:01:00,242 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 166 flow [2023-08-30 13:01:00,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-30 13:01:00,243 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-08-30 13:01:00,243 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 166 flow [2023-08-30 13:01:00,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:00,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:00,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:01:00,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:01:00,245 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:01:00,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1458289370, now seen corresponding path program 1 times [2023-08-30 13:01:00,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:00,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594318312] [2023-08-30 13:01:00,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:00,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:00,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:01:00,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:00,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594318312] [2023-08-30 13:01:00,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594318312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:00,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:00,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:01:00,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016979877] [2023-08-30 13:01:00,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:00,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:01:00,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:00,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:01:00,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:01:00,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-08-30 13:01:00,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:00,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:00,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-08-30 13:01:00,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:01,062 INFO L130 PetriNetUnfolder]: 3939/5421 cut-off events. [2023-08-30 13:01:01,063 INFO L131 PetriNetUnfolder]: For 3273/3273 co-relation queries the response was YES. [2023-08-30 13:01:01,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14846 conditions, 5421 events. 3939/5421 cut-off events. For 3273/3273 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 26571 event pairs, 1217 based on Foata normal form. 0/5392 useless extension candidates. Maximal degree in co-relation 14833. Up to 2277 conditions per place. [2023-08-30 13:01:01,090 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 71 selfloop transitions, 13 changer transitions 4/91 dead transitions. [2023-08-30 13:01:01,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 91 transitions, 474 flow [2023-08-30 13:01:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:01:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:01:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2023-08-30 13:01:01,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5330543933054394 [2023-08-30 13:01:01,096 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2023-08-30 13:01:01,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2023-08-30 13:01:01,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:01,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2023-08-30 13:01:01,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:01,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:01,101 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:01,101 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 166 flow. Second operand 5 states and 637 transitions. [2023-08-30 13:01:01,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 91 transitions, 474 flow [2023-08-30 13:01:01,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 91 transitions, 456 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 13:01:01,109 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 190 flow [2023-08-30 13:01:01,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-08-30 13:01:01,110 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-08-30 13:01:01,110 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 190 flow [2023-08-30 13:01:01,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:01,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:01,111 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] [2023-08-30 13:01:01,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:01:01,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:01:01,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:01,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2141480534, now seen corresponding path program 1 times [2023-08-30 13:01:01,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:01,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671002981] [2023-08-30 13:01:01,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:01,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:01:01,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:01,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671002981] [2023-08-30 13:01:01,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671002981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:01,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:01,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:01:01,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983043369] [2023-08-30 13:01:01,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:01,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:01:01,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:01,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:01:01,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:01:01,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 239 [2023-08-30 13:01:01,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:01,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:01,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 239 [2023-08-30 13:01:01,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:01,889 INFO L130 PetriNetUnfolder]: 3912/5374 cut-off events. [2023-08-30 13:01:01,890 INFO L131 PetriNetUnfolder]: For 3979/3979 co-relation queries the response was YES. [2023-08-30 13:01:01,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15077 conditions, 5374 events. 3912/5374 cut-off events. For 3979/3979 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 26404 event pairs, 1217 based on Foata normal form. 16/5377 useless extension candidates. Maximal degree in co-relation 15063. Up to 2277 conditions per place. [2023-08-30 13:01:01,913 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2023-08-30 13:01:01,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 83 transitions, 426 flow [2023-08-30 13:01:01,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:01:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:01:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2023-08-30 13:01:01,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5146443514644351 [2023-08-30 13:01:01,917 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 738 transitions. [2023-08-30 13:01:01,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 738 transitions. [2023-08-30 13:01:01,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:01,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 738 transitions. [2023-08-30 13:01:01,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:01,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:01,923 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:01,923 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 190 flow. Second operand 6 states and 738 transitions. [2023-08-30 13:01:01,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 83 transitions, 426 flow [2023-08-30 13:01:01,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 371 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 13:01:01,996 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-08-30 13:01:01,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-08-30 13:01:01,997 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-30 13:01:01,997 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-08-30 13:01:01,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.5) internal successors, (675), 6 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:02,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 13:01:02,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 13:01:02,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 13:01:02,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 13:01:02,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 13:01:02,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 13:01:02,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 13:01:02,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 13:01:02,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 13:01:02,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 13:01:02,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 13:01:02,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 13:01:02,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 13:01:02,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 13:01:02,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 13:01:02,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 13:01:02,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 13:01:02,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 13:01:02,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 13:01:02,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 13:01:02,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:01:02,004 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 13:01:02,009 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:01:02,009 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:01:02,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:01:02 BasicIcfg [2023-08-30 13:01:02,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:01:02,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:01:02,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:01:02,013 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:01:02,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:51" (3/4) ... [2023-08-30 13:01:02,015 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:01:02,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:01:02,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:01:02,020 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:01:02,020 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 13:01:02,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-08-30 13:01:02,024 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 13:01:02,024 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:01:02,024 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:01:02,054 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:01:02,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:01:02,055 INFO L158 Benchmark]: Toolchain (without parser) took 11938.48ms. Allocated memory was 69.2MB in the beginning and 935.3MB in the end (delta: 866.1MB). Free memory was 45.2MB in the beginning and 272.6MB in the end (delta: -227.3MB). Peak memory consumption was 640.4MB. Max. memory is 16.1GB. [2023-08-30 13:01:02,055 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 46.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:01:02,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.18ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 45.0MB in the beginning and 59.2MB in the end (delta: -14.1MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-08-30 13:01:02,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.60ms. Allocated memory is still 90.2MB. Free memory was 59.2MB in the beginning and 56.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:01:02,056 INFO L158 Benchmark]: Boogie Preprocessor took 56.34ms. Allocated memory is still 90.2MB. Free memory was 56.8MB in the beginning and 54.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:01:02,056 INFO L158 Benchmark]: RCFGBuilder took 916.32ms. Allocated memory is still 90.2MB. Free memory was 54.7MB in the beginning and 43.5MB in the end (delta: 11.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2023-08-30 13:01:02,056 INFO L158 Benchmark]: TraceAbstraction took 10315.46ms. Allocated memory was 90.2MB in the beginning and 935.3MB in the end (delta: 845.2MB). Free memory was 43.0MB in the beginning and 275.7MB in the end (delta: -232.7MB). Peak memory consumption was 613.3MB. Max. memory is 16.1GB. [2023-08-30 13:01:02,057 INFO L158 Benchmark]: Witness Printer took 41.67ms. Allocated memory is still 935.3MB. Free memory was 275.7MB in the beginning and 272.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:01:02,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 69.2MB. Free memory was 46.7MB in the beginning and 46.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.18ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 45.0MB in the beginning and 59.2MB in the end (delta: -14.1MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.60ms. Allocated memory is still 90.2MB. Free memory was 59.2MB in the beginning and 56.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.34ms. Allocated memory is still 90.2MB. Free memory was 56.8MB in the beginning and 54.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 916.32ms. Allocated memory is still 90.2MB. Free memory was 54.7MB in the beginning and 43.5MB in the end (delta: 11.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10315.46ms. Allocated memory was 90.2MB in the beginning and 935.3MB in the end (delta: 845.2MB). Free memory was 43.0MB in the beginning and 275.7MB in the end (delta: -232.7MB). Peak memory consumption was 613.3MB. Max. memory is 16.1GB. * Witness Printer took 41.67ms. Allocated memory is still 935.3MB. Free memory was 275.7MB in the beginning and 272.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 143 PlacesBefore, 48 PlacesAfterwards, 132 TransitionsBefore, 35 TransitionsAfterwards, 3888 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 103 TotalNumberOfCompositions, 13965 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4163, independent: 3817, independent conditional: 0, independent unconditional: 3817, dependent: 346, dependent conditional: 0, dependent unconditional: 346, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1938, independent: 1877, independent conditional: 0, independent unconditional: 1877, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4163, independent: 1940, independent conditional: 0, independent unconditional: 1940, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 1938, unknown conditional: 0, unknown unconditional: 1938] , Statistics on independence cache: Total cache size (in pairs): 191, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 848]: 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 9 procedures, 179 locations, 20 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: 10.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 285 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 259 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 439 IncrementalHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 7 mSDtfsCounter, 439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:01:02,078 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