./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.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/goblint-regression/04-mutex_10-ptrmunge_nr.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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --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 13:45:36,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:45:36,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:45:36,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:45:36,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:45:36,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:45:36,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:45:36,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:45:36,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:45:36,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:45:36,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:45:36,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:45:36,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:45:36,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:45:36,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:45:36,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:45:36,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:45:36,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:45:36,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:45:36,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:45:36,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:45:36,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:45:36,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:45:36,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:45:36,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:45:36,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:45:36,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:45:36,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:45:36,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:45:36,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:45:36,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:45:36,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:45:36,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:45:36,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:45:36,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:45:36,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:45:36,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:45:36,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:45:36,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:45:36,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:45:36,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:45:36,386 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:45:36,422 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:45:36,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:45:36,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:45:36,423 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:45:36,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:45:36,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:45:36,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:45:36,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:45:36,425 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:45:36,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:45:36,426 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:45:36,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:45:36,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:45:36,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:45:36,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:45:36,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:45:36,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:45:36,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:45:36,428 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:45:36,428 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:45:36,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:45:36,428 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:45:36,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:45:36,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:45:36,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:45:36,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:45:36,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:45:36,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:45:36,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:45:36,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:45:36,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:45:36,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:45:36,430 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:45:36,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:45:36,430 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:45:36,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:45:36,431 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:45:36,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:45:36,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:45:36,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:45:36,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:45:36,728 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:45:36,728 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:45:36,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-08-30 13:45:37,907 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:45:38,216 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:45:38,216 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-08-30 13:45:38,227 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71febe564/be066a5c2b0d4d709b3be4c7cab3aa49/FLAGf9cb812ca [2023-08-30 13:45:38,237 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71febe564/be066a5c2b0d4d709b3be4c7cab3aa49 [2023-08-30 13:45:38,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:45:38,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:45:38,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:45:38,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:45:38,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:45:38,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6418d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38, skipping insertion in model container [2023-08-30 13:45:38,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:45:38,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:45:38,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:45:38,630 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:45:38,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:45:38,724 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:45:38,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38 WrapperNode [2023-08-30 13:45:38,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:45:38,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:45:38,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:45:38,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:45:38,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,780 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-08-30 13:45:38,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:45:38,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:45:38,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:45:38,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:45:38,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:45:38,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:45:38,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:45:38,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:45:38,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (1/1) ... [2023-08-30 13:45:38,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:45:38,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:45:38,859 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 13:45:38,883 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 13:45:38,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:45:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:45:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:45:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:45:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:45:38,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:45:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 13:45:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 13:45:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:45:38,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:45:38,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:45:38,902 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 13:45:39,094 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:45:39,096 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:45:39,226 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:45:39,232 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:45:39,232 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:45:39,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:39 BoogieIcfgContainer [2023-08-30 13:45:39,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:45:39,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:45:39,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:45:39,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:45:39,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:45:38" (1/3) ... [2023-08-30 13:45:39,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cc5994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:45:39, skipping insertion in model container [2023-08-30 13:45:39,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:45:38" (2/3) ... [2023-08-30 13:45:39,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cc5994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:45:39, skipping insertion in model container [2023-08-30 13:45:39,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:39" (3/3) ... [2023-08-30 13:45:39,240 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2023-08-30 13:45:39,246 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:45:39,253 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:45:39,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-30 13:45:39,253 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:45:39,314 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 13:45:39,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 154 flow [2023-08-30 13:45:39,375 INFO L130 PetriNetUnfolder]: 0/72 cut-off events. [2023-08-30 13:45:39,375 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:45:39,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 72 events. 0/72 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-30 13:45:39,378 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 73 transitions, 154 flow [2023-08-30 13:45:39,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 65 transitions, 133 flow [2023-08-30 13:45:39,384 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:45:39,392 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 133 flow [2023-08-30 13:45:39,395 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 133 flow [2023-08-30 13:45:39,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 133 flow [2023-08-30 13:45:39,413 INFO L130 PetriNetUnfolder]: 0/65 cut-off events. [2023-08-30 13:45:39,413 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:39,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 0/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-30 13:45:39,414 INFO L119 LiptonReduction]: Number of co-enabled transitions 612 [2023-08-30 13:45:41,796 INFO L134 LiptonReduction]: Checked pairs total: 1164 [2023-08-30 13:45:41,796 INFO L136 LiptonReduction]: Total number of compositions: 56 [2023-08-30 13:45:41,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:45:41,813 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;@64e374a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:45:41,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-30 13:45:41,816 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-30 13:45:41,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:41,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:41,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 13:45:41,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:41,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:41,822 INFO L85 PathProgramCache]: Analyzing trace with hash 7733404, now seen corresponding path program 1 times [2023-08-30 13:45:41,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:41,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706790659] [2023-08-30 13:45:41,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:41,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:42,227 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 13:45:42,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:42,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706790659] [2023-08-30 13:45:42,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706790659] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:42,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:42,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:45:42,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165633853] [2023-08-30 13:45:42,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:42,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:45:42,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:45:42,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:45:42,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 129 [2023-08-30 13:45:42,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 13:45:42,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:42,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 129 [2023-08-30 13:45:42,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:42,403 INFO L130 PetriNetUnfolder]: 32/79 cut-off events. [2023-08-30 13:45:42,404 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:45:42,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 79 events. 32/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 255 event pairs, 6 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 154. Up to 56 conditions per place. [2023-08-30 13:45:42,406 INFO L137 encePairwiseOnDemand]: 123/129 looper letters, 19 selfloop transitions, 5 changer transitions 4/28 dead transitions. [2023-08-30 13:45:42,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 28 transitions, 115 flow [2023-08-30 13:45:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:45:42,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:45:42,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 286 transitions. [2023-08-30 13:45:42,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5542635658914729 [2023-08-30 13:45:42,418 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 286 transitions. [2023-08-30 13:45:42,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 286 transitions. [2023-08-30 13:45:42,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:42,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 286 transitions. [2023-08-30 13:45:42,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 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 13:45:42,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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 13:45:42,430 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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 13:45:42,431 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 4 states and 286 transitions. [2023-08-30 13:45:42,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 28 transitions, 115 flow [2023-08-30 13:45:42,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:45:42,435 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 58 flow [2023-08-30 13:45:42,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-08-30 13:45:42,439 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 4 predicate places. [2023-08-30 13:45:42,439 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 58 flow [2023-08-30 13:45:42,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 13:45:42,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:42,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 13:45:42,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:45:42,440 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:42,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:42,441 INFO L85 PathProgramCache]: Analyzing trace with hash 7733273, now seen corresponding path program 1 times [2023-08-30 13:45:42,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:42,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217292429] [2023-08-30 13:45:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:42,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:42,524 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 13:45:42,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:42,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217292429] [2023-08-30 13:45:42,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217292429] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:42,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:42,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:45:42,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324269411] [2023-08-30 13:45:42,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:42,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:45:42,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:42,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:45:42,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:45:42,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 129 [2023-08-30 13:45:42,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 13:45:42,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:42,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 129 [2023-08-30 13:45:42,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:42,643 INFO L130 PetriNetUnfolder]: 20/55 cut-off events. [2023-08-30 13:45:42,643 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 13:45:42,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 55 events. 20/55 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 151 event pairs, 6 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 130. Up to 42 conditions per place. [2023-08-30 13:45:42,644 INFO L137 encePairwiseOnDemand]: 123/129 looper letters, 15 selfloop transitions, 6 changer transitions 2/23 dead transitions. [2023-08-30 13:45:42,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 23 transitions, 123 flow [2023-08-30 13:45:42,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:45:42,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:45:42,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2023-08-30 13:45:42,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5426356589147286 [2023-08-30 13:45:42,647 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 280 transitions. [2023-08-30 13:45:42,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 280 transitions. [2023-08-30 13:45:42,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:42,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 280 transitions. [2023-08-30 13:45:42,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 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 13:45:42,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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 13:45:42,652 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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 13:45:42,652 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 58 flow. Second operand 4 states and 280 transitions. [2023-08-30 13:45:42,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 23 transitions, 123 flow [2023-08-30 13:45:42,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 118 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:45:42,653 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 85 flow [2023-08-30 13:45:42,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-08-30 13:45:42,654 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 8 predicate places. [2023-08-30 13:45:42,654 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 85 flow [2023-08-30 13:45:42,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 4 states have internal predecessors, (260), 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 13:45:42,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:42,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:42,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:45:42,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:42,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:42,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1541960687, now seen corresponding path program 1 times [2023-08-30 13:45:42,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:42,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75973652] [2023-08-30 13:45:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:42,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:42,827 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 13:45:42,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:42,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75973652] [2023-08-30 13:45:42,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75973652] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:42,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:42,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:45:42,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105783056] [2023-08-30 13:45:42,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:42,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:45:42,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:42,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:45:42,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:45:42,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 129 [2023-08-30 13:45:42,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 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 13:45:42,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:42,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 129 [2023-08-30 13:45:42,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:43,038 INFO L130 PetriNetUnfolder]: 24/67 cut-off events. [2023-08-30 13:45:43,038 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 13:45:43,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 67 events. 24/67 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 208 event pairs, 6 based on Foata normal form. 2/64 useless extension candidates. Maximal degree in co-relation 187. Up to 44 conditions per place. [2023-08-30 13:45:43,041 INFO L137 encePairwiseOnDemand]: 122/129 looper letters, 15 selfloop transitions, 8 changer transitions 5/28 dead transitions. [2023-08-30 13:45:43,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 173 flow [2023-08-30 13:45:43,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:45:43,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:45:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 344 transitions. [2023-08-30 13:45:43,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2023-08-30 13:45:43,044 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 344 transitions. [2023-08-30 13:45:43,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 344 transitions. [2023-08-30 13:45:43,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:43,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 344 transitions. [2023-08-30 13:45:43,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 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 13:45:43,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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 13:45:43,049 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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 13:45:43,049 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 85 flow. Second operand 5 states and 344 transitions. [2023-08-30 13:45:43,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 173 flow [2023-08-30 13:45:43,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 28 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:45:43,051 INFO L231 Difference]: Finished difference. Result has 32 places, 21 transitions, 121 flow [2023-08-30 13:45:43,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=32, PETRI_TRANSITIONS=21} [2023-08-30 13:45:43,053 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 13 predicate places. [2023-08-30 13:45:43,055 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 21 transitions, 121 flow [2023-08-30 13:45:43,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 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 13:45:43,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:43,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:43,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:45:43,057 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:43,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1546112207, now seen corresponding path program 2 times [2023-08-30 13:45:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:43,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760669425] [2023-08-30 13:45:43,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:43,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:43,265 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 13:45:43,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:43,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760669425] [2023-08-30 13:45:43,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760669425] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:43,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:43,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:45:43,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124940747] [2023-08-30 13:45:43,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:43,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:45:43,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:43,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:45:43,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:45:43,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 129 [2023-08-30 13:45:43,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 21 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 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 13:45:43,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:43,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 129 [2023-08-30 13:45:43,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:43,508 INFO L130 PetriNetUnfolder]: 20/55 cut-off events. [2023-08-30 13:45:43,508 INFO L131 PetriNetUnfolder]: For 76/76 co-relation queries the response was YES. [2023-08-30 13:45:43,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 55 events. 20/55 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 151 event pairs, 6 based on Foata normal form. 2/54 useless extension candidates. Maximal degree in co-relation 168. Up to 28 conditions per place. [2023-08-30 13:45:43,509 INFO L137 encePairwiseOnDemand]: 123/129 looper letters, 9 selfloop transitions, 8 changer transitions 9/26 dead transitions. [2023-08-30 13:45:43,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 26 transitions, 182 flow [2023-08-30 13:45:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:45:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:45:43,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 468 transitions. [2023-08-30 13:45:43,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5182724252491694 [2023-08-30 13:45:43,514 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 468 transitions. [2023-08-30 13:45:43,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 468 transitions. [2023-08-30 13:45:43,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:43,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 468 transitions. [2023-08-30 13:45:43,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 66.85714285714286) internal successors, (468), 7 states have internal predecessors, (468), 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 13:45:43,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 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 13:45:43,518 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 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 13:45:43,518 INFO L175 Difference]: Start difference. First operand has 32 places, 21 transitions, 121 flow. Second operand 7 states and 468 transitions. [2023-08-30 13:45:43,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 26 transitions, 182 flow [2023-08-30 13:45:43,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 158 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 13:45:43,520 INFO L231 Difference]: Finished difference. Result has 31 places, 15 transitions, 90 flow [2023-08-30 13:45:43,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=90, PETRI_PLACES=31, PETRI_TRANSITIONS=15} [2023-08-30 13:45:43,520 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 12 predicate places. [2023-08-30 13:45:43,521 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 15 transitions, 90 flow [2023-08-30 13:45:43,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 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 13:45:43,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:43,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:43,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:45:43,521 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:43,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:43,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1542216754, now seen corresponding path program 1 times [2023-08-30 13:45:43,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:43,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176594226] [2023-08-30 13:45:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:43,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:43,657 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 13:45:43,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:43,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176594226] [2023-08-30 13:45:43,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176594226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:43,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:43,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:45:43,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239985091] [2023-08-30 13:45:43,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:43,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:45:43,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:43,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:45:43,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:45:43,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 129 [2023-08-30 13:45:43,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 15 transitions, 90 flow. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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 13:45:43,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:43,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 129 [2023-08-30 13:45:43,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:43,829 INFO L130 PetriNetUnfolder]: 8/32 cut-off events. [2023-08-30 13:45:43,829 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-08-30 13:45:43,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 32 events. 8/32 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 59 event pairs, 4 based on Foata normal form. 3/32 useless extension candidates. Maximal degree in co-relation 97. Up to 18 conditions per place. [2023-08-30 13:45:43,829 INFO L137 encePairwiseOnDemand]: 123/129 looper letters, 6 selfloop transitions, 4 changer transitions 9/19 dead transitions. [2023-08-30 13:45:43,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 19 transitions, 136 flow [2023-08-30 13:45:43,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:45:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:45:43,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 454 transitions. [2023-08-30 13:45:43,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5027685492801772 [2023-08-30 13:45:43,833 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 454 transitions. [2023-08-30 13:45:43,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 454 transitions. [2023-08-30 13:45:43,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:43,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 454 transitions. [2023-08-30 13:45:43,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 64.85714285714286) internal successors, (454), 7 states have internal predecessors, (454), 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 13:45:43,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 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 13:45:43,836 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 129.0) internal successors, (1032), 8 states have internal predecessors, (1032), 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 13:45:43,836 INFO L175 Difference]: Start difference. First operand has 31 places, 15 transitions, 90 flow. Second operand 7 states and 454 transitions. [2023-08-30 13:45:43,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 19 transitions, 136 flow [2023-08-30 13:45:43,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 19 transitions, 104 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-30 13:45:43,839 INFO L231 Difference]: Finished difference. Result has 27 places, 10 transitions, 48 flow [2023-08-30 13:45:43,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=10} [2023-08-30 13:45:43,841 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, 8 predicate places. [2023-08-30 13:45:43,842 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 10 transitions, 48 flow [2023-08-30 13:45:43,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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 13:45:43,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:45:43,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:45:43,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:45:43,843 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-30 13:45:43,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:45:43,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1545532204, now seen corresponding path program 2 times [2023-08-30 13:45:43,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:45:43,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072986565] [2023-08-30 13:45:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:45:43,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:45:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:45:43,981 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 13:45:43,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:45:43,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072986565] [2023-08-30 13:45:43,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072986565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:45:43,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:45:43,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:45:43,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294079361] [2023-08-30 13:45:43,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:45:43,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:45:43,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:45:43,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:45:43,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:45:44,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 129 [2023-08-30 13:45:44,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 10 transitions, 48 flow. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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 13:45:44,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:45:44,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 129 [2023-08-30 13:45:44,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:45:44,109 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-30 13:45:44,109 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-30 13:45:44,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 8 events. 0/8 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 3/11 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2023-08-30 13:45:44,109 INFO L137 encePairwiseOnDemand]: 123/129 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2023-08-30 13:45:44,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 8 transitions, 52 flow [2023-08-30 13:45:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:45:44,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:45:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 382 transitions. [2023-08-30 13:45:44,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4935400516795866 [2023-08-30 13:45:44,112 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 382 transitions. [2023-08-30 13:45:44,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 382 transitions. [2023-08-30 13:45:44,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:45:44,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 382 transitions. [2023-08-30 13:45:44,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 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 13:45:44,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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 13:45:44,115 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 129.0) internal successors, (903), 7 states have internal predecessors, (903), 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 13:45:44,115 INFO L175 Difference]: Start difference. First operand has 27 places, 10 transitions, 48 flow. Second operand 6 states and 382 transitions. [2023-08-30 13:45:44,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 8 transitions, 52 flow [2023-08-30 13:45:44,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 8 transitions, 35 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-30 13:45:44,116 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2023-08-30 13:45:44,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=19, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2023-08-30 13:45:44,117 INFO L281 CegarLoopForPetriNet]: 19 programPoint places, -1 predicate places. [2023-08-30 13:45:44,117 INFO L495 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2023-08-30 13:45:44,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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 13:45:44,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-08-30 13:45:44,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-08-30 13:45:44,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-08-30 13:45:44,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-08-30 13:45:44,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-08-30 13:45:44,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-08-30 13:45:44,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-08-30 13:45:44,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:45:44,122 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2023-08-30 13:45:44,126 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:45:44,126 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:45:44,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:45:44 BasicIcfg [2023-08-30 13:45:44,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:45:44,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:45:44,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:45:44,130 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:45:44,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:45:39" (3/4) ... [2023-08-30 13:45:44,132 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:45:44,137 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 13:45:44,140 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-08-30 13:45:44,140 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 13:45:44,140 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:45:44,176 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:45:44,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:45:44,176 INFO L158 Benchmark]: Toolchain (without parser) took 5935.22ms. Allocated memory was 65.0MB in the beginning and 119.5MB in the end (delta: 54.5MB). Free memory was 40.9MB in the beginning and 56.8MB in the end (delta: -15.9MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2023-08-30 13:45:44,177 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 42.4MB in the beginning and 42.4MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:45:44,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 482.97ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 40.8MB in the beginning and 45.7MB in the end (delta: -4.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-08-30 13:45:44,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.58ms. Allocated memory is still 81.8MB. Free memory was 45.7MB in the beginning and 43.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:45:44,178 INFO L158 Benchmark]: Boogie Preprocessor took 41.59ms. Allocated memory is still 81.8MB. Free memory was 43.5MB in the beginning and 42.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:45:44,178 INFO L158 Benchmark]: RCFGBuilder took 408.55ms. Allocated memory is still 81.8MB. Free memory was 41.8MB in the beginning and 53.7MB in the end (delta: -11.9MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-08-30 13:45:44,178 INFO L158 Benchmark]: TraceAbstraction took 4893.90ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 53.3MB in the beginning and 59.9MB in the end (delta: -6.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-08-30 13:45:44,178 INFO L158 Benchmark]: Witness Printer took 46.71ms. Allocated memory is still 119.5MB. Free memory was 59.9MB in the beginning and 56.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:45:44,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory was 42.4MB in the beginning and 42.4MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 482.97ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 40.8MB in the beginning and 45.7MB in the end (delta: -4.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.58ms. Allocated memory is still 81.8MB. Free memory was 45.7MB in the beginning and 43.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.59ms. Allocated memory is still 81.8MB. Free memory was 43.5MB in the beginning and 42.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 408.55ms. Allocated memory is still 81.8MB. Free memory was 41.8MB in the beginning and 53.7MB in the end (delta: -11.9MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4893.90ms. Allocated memory was 81.8MB in the beginning and 119.5MB in the end (delta: 37.7MB). Free memory was 53.3MB in the beginning and 59.9MB in the end (delta: -6.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Witness Printer took 46.71ms. Allocated memory is still 119.5MB. Free memory was 59.9MB in the beginning and 56.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 69 PlacesBefore, 19 PlacesAfterwards, 65 TransitionsBefore, 15 TransitionsAfterwards, 612 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 56 TotalNumberOfCompositions, 1164 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 806, independent: 697, independent conditional: 0, independent unconditional: 697, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 352, independent: 336, independent conditional: 0, independent unconditional: 336, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 806, independent: 361, independent conditional: 0, independent unconditional: 361, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 352, unknown conditional: 0, unknown unconditional: 352] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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 3 procedures, 93 locations, 7 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: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 653 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 428 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1178 IncrementalHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 12 mSDtfsCounter, 1178 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=3, InterpolantAutomatonStates: 33, 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, 0.9s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:45:44,205 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