./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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 ../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:45:33,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:45:33,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:45:33,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:45:33,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:45:33,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:45:33,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:45:33,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:45:33,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:45:33,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:45:33,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:45:33,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:45:33,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:45:33,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:45:33,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:45:33,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:45:33,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:45:33,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:45:33,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:45:33,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:45:33,455 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:45:33,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:45:33,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:45:33,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:45:33,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:45:33,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:45:33,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:45:33,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:45:33,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:45:33,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:45:33,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:45:33,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:45:33,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:45:33,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:45:33,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:45:33,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:45:33,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:45:33,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:45:33,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:45:33,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:45:33,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:45:33,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:45:33,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:45:33,501 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:45:33,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:45:33,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:45:33,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:45:33,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:45:33,503 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:45:33,503 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:45:33,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:45:33,504 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:45:33,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:45:33,505 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:45:33,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:45:33,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:45:33,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:45:33,505 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:45:33,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:45:33,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:45:33,506 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:45:33,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:45:33,506 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:45:33,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:45:33,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:45:33,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:45:33,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:45:33,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:45:33,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:45:33,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:45:33,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:45:33,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:45:33,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:45:33,508 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:45:33,508 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:45:33,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:45:33,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da1ee67f9d4a34134c6c682362ba77c4c77858b09ffe0620532fe4446dd160da [2022-07-21 08:45:33,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:45:33,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:45:33,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:45:33,835 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:45:33,836 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:45:33,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-07-21 08:45:33,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d3b5bdc/8d2a27dc7a9343c7a7c4c2c91c7b0f24/FLAG21b1ae68c [2022-07-21 08:45:34,352 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:45:34,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2022-07-21 08:45:34,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d3b5bdc/8d2a27dc7a9343c7a7c4c2c91c7b0f24/FLAG21b1ae68c [2022-07-21 08:45:34,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d3b5bdc/8d2a27dc7a9343c7a7c4c2c91c7b0f24 [2022-07-21 08:45:34,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:45:34,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:45:34,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:45:34,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:45:34,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:45:34,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:45:34" (1/1) ... [2022-07-21 08:45:34,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a675bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:34, skipping insertion in model container [2022-07-21 08:45:34,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:45:34" (1/1) ... [2022-07-21 08:45:34,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:45:34,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:45:34,570 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-21 08:45:34,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-07-21 08:45:34,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:45:34,990 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:45:35,002 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-07-21 08:45:35,034 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i[75002,75015] [2022-07-21 08:45:35,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:45:35,152 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:45:35,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35 WrapperNode [2022-07-21 08:45:35,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:45:35,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:45:35,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:45:35,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:45:35,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,231 INFO L137 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-07-21 08:45:35,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:45:35,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:45:35,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:45:35,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:45:35,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:45:35,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:45:35,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:45:35,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:45:35,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (1/1) ... [2022-07-21 08:45:35,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:45:35,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:45:35,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 08:45:35,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 08:45:35,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-21 08:45:35,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 08:45:35,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-21 08:45:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 08:45:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-21 08:45:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:45:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 08:45:35,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:45:35,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:45:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-07-21 08:45:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-07-21 08:45:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 08:45:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 08:45:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:45:35,382 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 08:45:35,576 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:45:35,578 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:45:35,752 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:45:35,784 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:45:35,784 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 08:45:35,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:45:35 BoogieIcfgContainer [2022-07-21 08:45:35,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:45:35,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:45:35,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:45:35,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:45:35,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:45:34" (1/3) ... [2022-07-21 08:45:35,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e082e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:45:35, skipping insertion in model container [2022-07-21 08:45:35,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:45:35" (2/3) ... [2022-07-21 08:45:35,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e082e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:45:35, skipping insertion in model container [2022-07-21 08:45:35,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:45:35" (3/3) ... [2022-07-21 08:45:35,792 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2022-07-21 08:45:35,795 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 08:45:35,802 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:45:35,803 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-21 08:45:35,803 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 08:45:35,841 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-21 08:45:35,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 175 places, 175 transitions, 366 flow [2022-07-21 08:45:35,923 INFO L129 PetriNetUnfolder]: 8/226 cut-off events. [2022-07-21 08:45:35,924 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-21 08:45:35,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 226 events. 8/226 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 431 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 122. Up to 4 conditions per place. [2022-07-21 08:45:35,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 175 transitions, 366 flow [2022-07-21 08:45:35,931 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 161 transitions, 334 flow [2022-07-21 08:45:35,940 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:45:35,946 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@776e5e8c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e5653d0 [2022-07-21 08:45:35,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-07-21 08:45:35,972 INFO L129 PetriNetUnfolder]: 0/94 cut-off events. [2022-07-21 08:45:35,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-21 08:45:35,973 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:35,974 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:45:35,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-21 08:45:35,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:35,978 INFO L85 PathProgramCache]: Analyzing trace with hash -955460015, now seen corresponding path program 1 times [2022-07-21 08:45:35,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:35,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399071329] [2022-07-21 08:45:35,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:35,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:36,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:36,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399071329] [2022-07-21 08:45:36,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399071329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:36,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:36,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 08:45:36,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310686702] [2022-07-21 08:45:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:36,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 08:45:36,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:36,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 08:45:36,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 08:45:36,391 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 175 [2022-07-21 08:45:36,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 161 transitions, 334 flow. Second operand has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:36,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:36,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 175 [2022-07-21 08:45:36,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:36,584 INFO L129 PetriNetUnfolder]: 47/394 cut-off events. [2022-07-21 08:45:36,584 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-07-21 08:45:36,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 394 events. 47/394 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1656 event pairs, 47 based on Foata normal form. 8/370 useless extension candidates. Maximal degree in co-relation 359. Up to 104 conditions per place. [2022-07-21 08:45:36,590 INFO L132 encePairwiseOnDemand]: 167/175 looper letters, 22 selfloop transitions, 4 changer transitions 0/160 dead transitions. [2022-07-21 08:45:36,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 160 transitions, 384 flow [2022-07-21 08:45:36,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 08:45:36,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-21 08:45:36,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 907 transitions. [2022-07-21 08:45:36,608 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8638095238095238 [2022-07-21 08:45:36,609 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 907 transitions. [2022-07-21 08:45:36,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 907 transitions. [2022-07-21 08:45:36,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:36,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 907 transitions. [2022-07-21 08:45:36,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.16666666666666) internal successors, (907), 6 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:36,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:36,626 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:36,627 INFO L186 Difference]: Start difference. First operand has 163 places, 161 transitions, 334 flow. Second operand 6 states and 907 transitions. [2022-07-21 08:45:36,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 160 transitions, 384 flow [2022-07-21 08:45:36,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 160 transitions, 376 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-07-21 08:45:36,633 INFO L242 Difference]: Finished difference. Result has 165 places, 158 transitions, 343 flow [2022-07-21 08:45:36,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=343, PETRI_PLACES=165, PETRI_TRANSITIONS=158} [2022-07-21 08:45:36,637 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 2 predicate places. [2022-07-21 08:45:36,637 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 158 transitions, 343 flow [2022-07-21 08:45:36,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:36,638 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:36,638 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:45:36,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:45:36,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-21 08:45:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:36,639 INFO L85 PathProgramCache]: Analyzing trace with hash -221351835, now seen corresponding path program 1 times [2022-07-21 08:45:36,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:36,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121595585] [2022-07-21 08:45:36,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:36,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:36,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:36,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121595585] [2022-07-21 08:45:36,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121595585] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:36,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:36,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 08:45:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739907983] [2022-07-21 08:45:36,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:36,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 08:45:36,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:36,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 08:45:36,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 08:45:36,740 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-07-21 08:45:36,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 158 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:36,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:36,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-07-21 08:45:36,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:37,253 INFO L129 PetriNetUnfolder]: 975/2233 cut-off events. [2022-07-21 08:45:37,253 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-21 08:45:37,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3972 conditions, 2233 events. 975/2233 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 15028 event pairs, 250 based on Foata normal form. 0/2159 useless extension candidates. Maximal degree in co-relation 3919. Up to 691 conditions per place. [2022-07-21 08:45:37,266 INFO L132 encePairwiseOnDemand]: 154/175 looper letters, 100 selfloop transitions, 48 changer transitions 0/248 dead transitions. [2022-07-21 08:45:37,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 248 transitions, 819 flow [2022-07-21 08:45:37,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 08:45:37,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-07-21 08:45:37,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1634 transitions. [2022-07-21 08:45:37,271 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6669387755102041 [2022-07-21 08:45:37,271 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1634 transitions. [2022-07-21 08:45:37,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1634 transitions. [2022-07-21 08:45:37,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:37,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1634 transitions. [2022-07-21 08:45:37,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 116.71428571428571) internal successors, (1634), 14 states have internal predecessors, (1634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:37,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:37,303 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 175.0) internal successors, (2625), 15 states have internal predecessors, (2625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:37,303 INFO L186 Difference]: Start difference. First operand has 165 places, 158 transitions, 343 flow. Second operand 14 states and 1634 transitions. [2022-07-21 08:45:37,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 248 transitions, 819 flow [2022-07-21 08:45:37,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 248 transitions, 818 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 08:45:37,307 INFO L242 Difference]: Finished difference. Result has 185 places, 197 transitions, 643 flow [2022-07-21 08:45:37,308 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=643, PETRI_PLACES=185, PETRI_TRANSITIONS=197} [2022-07-21 08:45:37,308 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 22 predicate places. [2022-07-21 08:45:37,309 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 197 transitions, 643 flow [2022-07-21 08:45:37,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:37,309 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:37,309 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:45:37,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 08:45:37,310 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-21 08:45:37,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash -636502585, now seen corresponding path program 1 times [2022-07-21 08:45:37,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:37,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739413831] [2022-07-21 08:45:37,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:37,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:37,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:37,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:37,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739413831] [2022-07-21 08:45:37,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739413831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:37,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:37,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 08:45:37,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711585872] [2022-07-21 08:45:37,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:37,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 08:45:37,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:37,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 08:45:37,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 08:45:37,447 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2022-07-21 08:45:37,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 197 transitions, 643 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:37,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:37,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2022-07-21 08:45:37,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:37,982 INFO L129 PetriNetUnfolder]: 1229/2840 cut-off events. [2022-07-21 08:45:37,982 INFO L130 PetriNetUnfolder]: For 12547/12609 co-relation queries the response was YES. [2022-07-21 08:45:37,989 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10108 conditions, 2840 events. 1229/2840 cut-off events. For 12547/12609 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 20645 event pairs, 312 based on Foata normal form. 48/2863 useless extension candidates. Maximal degree in co-relation 9098. Up to 934 conditions per place. [2022-07-21 08:45:38,002 INFO L132 encePairwiseOnDemand]: 156/175 looper letters, 78 selfloop transitions, 44 changer transitions 75/293 dead transitions. [2022-07-21 08:45:38,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 293 transitions, 1800 flow [2022-07-21 08:45:38,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 08:45:38,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-07-21 08:45:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1409 transitions. [2022-07-21 08:45:38,006 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.670952380952381 [2022-07-21 08:45:38,007 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1409 transitions. [2022-07-21 08:45:38,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1409 transitions. [2022-07-21 08:45:38,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:38,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1409 transitions. [2022-07-21 08:45:38,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 117.41666666666667) internal successors, (1409), 12 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,014 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 175.0) internal successors, (2275), 13 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,014 INFO L186 Difference]: Start difference. First operand has 185 places, 197 transitions, 643 flow. Second operand 12 states and 1409 transitions. [2022-07-21 08:45:38,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 293 transitions, 1800 flow [2022-07-21 08:45:38,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 293 transitions, 1800 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-21 08:45:38,048 INFO L242 Difference]: Finished difference. Result has 204 places, 197 transitions, 931 flow [2022-07-21 08:45:38,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=931, PETRI_PLACES=204, PETRI_TRANSITIONS=197} [2022-07-21 08:45:38,049 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 41 predicate places. [2022-07-21 08:45:38,049 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 197 transitions, 931 flow [2022-07-21 08:45:38,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,049 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:38,050 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:45:38,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 08:45:38,050 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-21 08:45:38,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:38,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1667442330, now seen corresponding path program 1 times [2022-07-21 08:45:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:38,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475678716] [2022-07-21 08:45:38,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:38,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:38,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:38,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475678716] [2022-07-21 08:45:38,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475678716] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:38,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:38,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 08:45:38,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65908889] [2022-07-21 08:45:38,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:38,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 08:45:38,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:38,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 08:45:38,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 08:45:38,118 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2022-07-21 08:45:38,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 197 transitions, 931 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:38,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2022-07-21 08:45:38,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:38,516 INFO L129 PetriNetUnfolder]: 796/2199 cut-off events. [2022-07-21 08:45:38,516 INFO L130 PetriNetUnfolder]: For 27849/27965 co-relation queries the response was YES. [2022-07-21 08:45:38,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10469 conditions, 2199 events. 796/2199 cut-off events. For 27849/27965 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 17331 event pairs, 295 based on Foata normal form. 19/2165 useless extension candidates. Maximal degree in co-relation 10178. Up to 1091 conditions per place. [2022-07-21 08:45:38,541 INFO L132 encePairwiseOnDemand]: 167/175 looper letters, 79 selfloop transitions, 7 changer transitions 0/210 dead transitions. [2022-07-21 08:45:38,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 210 transitions, 1228 flow [2022-07-21 08:45:38,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 08:45:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 08:45:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 443 transitions. [2022-07-21 08:45:38,543 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8438095238095238 [2022-07-21 08:45:38,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 443 transitions. [2022-07-21 08:45:38,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 443 transitions. [2022-07-21 08:45:38,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:38,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 443 transitions. [2022-07-21 08:45:38,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,546 INFO L186 Difference]: Start difference. First operand has 204 places, 197 transitions, 931 flow. Second operand 3 states and 443 transitions. [2022-07-21 08:45:38,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 210 transitions, 1228 flow [2022-07-21 08:45:38,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 210 transitions, 1108 flow, removed 48 selfloop flow, removed 10 redundant places. [2022-07-21 08:45:38,562 INFO L242 Difference]: Finished difference. Result has 183 places, 203 transitions, 959 flow [2022-07-21 08:45:38,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=959, PETRI_PLACES=183, PETRI_TRANSITIONS=203} [2022-07-21 08:45:38,564 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 20 predicate places. [2022-07-21 08:45:38,564 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 203 transitions, 959 flow [2022-07-21 08:45:38,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,564 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:38,564 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:45:38,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 08:45:38,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-21 08:45:38,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:38,565 INFO L85 PathProgramCache]: Analyzing trace with hash -151104274, now seen corresponding path program 1 times [2022-07-21 08:45:38,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:38,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047564807] [2022-07-21 08:45:38,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:38,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:45:38,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:45:38,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:45:38,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047564807] [2022-07-21 08:45:38,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047564807] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:45:38,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:45:38,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 08:45:38,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399816543] [2022-07-21 08:45:38,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:45:38,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 08:45:38,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:45:38,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 08:45:38,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 08:45:38,663 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 175 [2022-07-21 08:45:38,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 203 transitions, 959 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:38,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:45:38,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 175 [2022-07-21 08:45:38,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:45:38,982 INFO L129 PetriNetUnfolder]: 896/2362 cut-off events. [2022-07-21 08:45:38,982 INFO L130 PetriNetUnfolder]: For 32045/32164 co-relation queries the response was YES. [2022-07-21 08:45:38,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11499 conditions, 2362 events. 896/2362 cut-off events. For 32045/32164 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 18339 event pairs, 324 based on Foata normal form. 20/2327 useless extension candidates. Maximal degree in co-relation 10353. Up to 1205 conditions per place. [2022-07-21 08:45:39,008 INFO L132 encePairwiseOnDemand]: 167/175 looper letters, 83 selfloop transitions, 12 changer transitions 0/219 dead transitions. [2022-07-21 08:45:39,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 219 transitions, 1378 flow [2022-07-21 08:45:39,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 08:45:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 08:45:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2022-07-21 08:45:39,010 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8419047619047619 [2022-07-21 08:45:39,010 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2022-07-21 08:45:39,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2022-07-21 08:45:39,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:45:39,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2022-07-21 08:45:39,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:39,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:39,013 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:39,013 INFO L186 Difference]: Start difference. First operand has 183 places, 203 transitions, 959 flow. Second operand 3 states and 442 transitions. [2022-07-21 08:45:39,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 219 transitions, 1378 flow [2022-07-21 08:45:39,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 219 transitions, 1146 flow, removed 104 selfloop flow, removed 2 redundant places. [2022-07-21 08:45:39,035 INFO L242 Difference]: Finished difference. Result has 185 places, 213 transitions, 1005 flow [2022-07-21 08:45:39,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1005, PETRI_PLACES=185, PETRI_TRANSITIONS=213} [2022-07-21 08:45:39,037 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 22 predicate places. [2022-07-21 08:45:39,037 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 213 transitions, 1005 flow [2022-07-21 08:45:39,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:45:39,038 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:45:39,038 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:45:39,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 08:45:39,038 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2022-07-21 08:45:39,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:45:39,039 INFO L85 PathProgramCache]: Analyzing trace with hash -947796630, now seen corresponding path program 1 times [2022-07-21 08:45:39,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:45:39,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415902975] [2022-07-21 08:45:39,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:45:39,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:45:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:45:39,118 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 08:45:39,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:45:39,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 08:45:39,187 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 08:45:39,188 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-07-21 08:45:39,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-07-21 08:45:39,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-07-21 08:45:39,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-07-21 08:45:39,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-07-21 08:45:39,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-07-21 08:45:39,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-07-21 08:45:39,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-07-21 08:45:39,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 08:45:39,191 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-21 08:45:39,195 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-21 08:45:39,195 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:45:39,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:45:39 BasicIcfg [2022-07-21 08:45:39,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:45:39,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:45:39,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:45:39,261 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:45:39,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:45:35" (3/4) ... [2022-07-21 08:45:39,263 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 08:45:39,324 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 08:45:39,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:45:39,325 INFO L158 Benchmark]: Toolchain (without parser) took 4937.33ms. Allocated memory was 60.8MB in the beginning and 356.5MB in the end (delta: 295.7MB). Free memory was 37.7MB in the beginning and 234.2MB in the end (delta: -196.6MB). Peak memory consumption was 97.7MB. Max. memory is 16.1GB. [2022-07-21 08:45:39,325 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:45:39,326 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.13ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.5MB in the beginning and 47.2MB in the end (delta: -9.7MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-07-21 08:45:39,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.85ms. Allocated memory is still 73.4MB. Free memory was 47.2MB in the beginning and 43.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 08:45:39,326 INFO L158 Benchmark]: Boogie Preprocessor took 39.32ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 41.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:45:39,327 INFO L158 Benchmark]: RCFGBuilder took 503.61ms. Allocated memory is still 73.4MB. Free memory was 40.9MB in the beginning and 37.6MB in the end (delta: 3.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-21 08:45:39,327 INFO L158 Benchmark]: TraceAbstraction took 3473.39ms. Allocated memory was 73.4MB in the beginning and 356.5MB in the end (delta: 283.1MB). Free memory was 37.0MB in the beginning and 245.8MB in the end (delta: -208.8MB). Peak memory consumption was 197.0MB. Max. memory is 16.1GB. [2022-07-21 08:45:39,327 INFO L158 Benchmark]: Witness Printer took 63.66ms. Allocated memory is still 356.5MB. Free memory was 245.8MB in the beginning and 234.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 08:45:39,335 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 60.8MB. Free memory was 42.9MB in the beginning and 42.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.13ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.5MB in the beginning and 47.2MB in the end (delta: -9.7MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.85ms. Allocated memory is still 73.4MB. Free memory was 47.2MB in the beginning and 43.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.32ms. Allocated memory is still 73.4MB. Free memory was 43.7MB in the beginning and 41.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 503.61ms. Allocated memory is still 73.4MB. Free memory was 40.9MB in the beginning and 37.6MB in the end (delta: 3.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3473.39ms. Allocated memory was 73.4MB in the beginning and 356.5MB in the end (delta: 283.1MB). Free memory was 37.0MB in the beginning and 245.8MB in the end (delta: -208.8MB). Peak memory consumption was 197.0MB. Max. memory is 16.1GB. * Witness Printer took 63.66ms. Allocated memory is still 356.5MB. Free memory was 245.8MB in the beginning and 234.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={3:0}, t2={4:0}] [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; VAL [\result=0, t1={3:0}, t2={4:0}] [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); VAL [my_drv_init()=0, ret=0, t1={3:0}, t2={4:0}] [L1746] COND TRUE 0 ret==0 VAL [ret=0, t1={3:0}, t2={4:0}] [L1747] 0 int probe_ret; VAL [ret=0, t1={3:0}, t2={4:0}] [L1748] 0 struct my_data data; VAL [data={5:0}, ret=0, t1={3:0}, t2={4:0}] [L1749] CALL, EXPR 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1708] 0 data->shared.a = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1709] 0 data->shared.b = 0 VAL [d={5:24}, data={5:0}, data={5:0}, t1={3:0}, t2={4:0}] [L1710] 0 int res = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1711] COND FALSE 0 !(\read(res)) VAL [d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=8, res=0, t1={3:0}, t2={4:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=9, res=0, t1={3:0}, t2={4:0}] [L1715] 0 return 0; VAL [\result=0, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, res=0, t1={3:0}, t2={4:0}] [L1749] RET, EXPR 0 my_drv_probe(&data) [L1749] 0 probe_ret = my_drv_probe(&data) VAL [arg={5:24}, data={5:0}, my_drv_probe(&data)=0, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1750] COND TRUE 0 probe_ret==0 VAL [arg={5:24}, data={5:0}, probe_ret=0, ret=0, t1={3:0}, t2={4:0}] [L1751] CALL 0 my_drv_disconnect(&data) [L1721] 0 void *status; VAL [arg={5:24}, data={5:0}, data={5:0}, status={7:0}, t1={3:0}, t2={4:0}] [L1723] 0 data->shared.a = 3 VAL [arg={5:24}, data={5:0}, data={5:0}, status={7:0}, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; VAL [arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, dev={5:24}, t1={3:0}, t2={4:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1726] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, status={7:0}, t1={3:0}, t2={4:0}] [L1729] EXPR 0 data->shared.a [L1729] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 185 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199 mSDsluCounter, 412 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 347 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 599 IncrementalHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 153 mSDtfsCounter, 599 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1005occurred in iteration=5, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 489 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 RESULT: Ultimate proved your program to be incorrect! [2022-07-21 08:45:39,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE