./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-1_3-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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-1_3-join.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 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 16:38:55,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 16:38:55,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 16:38:55,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 16:38:55,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 16:38:55,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 16:38:55,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 16:38:55,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 16:38:55,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 16:38:55,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 16:38:55,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 16:38:55,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 16:38:55,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 16:38:55,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 16:38:55,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 16:38:55,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 16:38:55,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 16:38:55,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 16:38:55,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 16:38:55,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 16:38:55,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 16:38:55,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 16:38:55,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 16:38:55,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 16:38:55,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 16:38:55,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 16:38:55,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 16:38:55,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 16:38:55,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 16:38:55,685 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 16:38:55,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 16:38:55,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 16:38:55,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 16:38:55,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 16:38:55,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 16:38:55,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 16:38:55,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 16:38:55,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 16:38:55,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 16:38:55,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 16:38:55,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 16:38:55,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 16:38:55,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 16:38:55,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 16:38:55,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 16:38:55,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 16:38:55,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 16:38:55,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 16:38:55,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 16:38:55,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 16:38:55,728 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 16:38:55,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 16:38:55,729 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 16:38:55,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 16:38:55,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 16:38:55,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 16:38:55,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 16:38:55,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 16:38:55,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 16:38:55,730 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 16:38:55,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 16:38:55,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 16:38:55,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 16:38:55,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 16:38:55,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 16:38:55,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 16:38:55,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:38:55,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 16:38:55,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 16:38:55,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 16:38:55,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 16:38:55,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 16:38:55,733 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 16:38:55,733 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 16:38:55,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 16:38:55,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 16:38:55,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c7f2059024755e8d2127555397365a96bb56530f6a4795548fd916204307c42 [2021-12-14 16:38:55,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 16:38:55,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 16:38:55,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 16:38:55,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 16:38:55,937 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 16:38:55,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_3-join.i [2021-12-14 16:38:55,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f30edad/695ef9cedf6d41cbb51226fbd2b26ad1/FLAG30772efd5 [2021-12-14 16:38:56,379 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 16:38:56,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_3-join.i [2021-12-14 16:38:56,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f30edad/695ef9cedf6d41cbb51226fbd2b26ad1/FLAG30772efd5 [2021-12-14 16:38:56,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f30edad/695ef9cedf6d41cbb51226fbd2b26ad1 [2021-12-14 16:38:56,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 16:38:56,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 16:38:56,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 16:38:56,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 16:38:56,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 16:38:56,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:38:56" (1/1) ... [2021-12-14 16:38:56,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fff1050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:56, skipping insertion in model container [2021-12-14 16:38:56,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:38:56" (1/1) ... [2021-12-14 16:38:56,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 16:38:56,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 16:38:57,013 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-1_3-join.i[76153,76166] [2021-12-14 16:38:57,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:38:57,052 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 16:38:57,086 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-1_3-join.i[76153,76166] [2021-12-14 16:38:57,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 16:38:57,200 INFO L208 MainTranslator]: Completed translation [2021-12-14 16:38:57,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57 WrapperNode [2021-12-14 16:38:57,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 16:38:57,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 16:38:57,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 16:38:57,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 16:38:57,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,289 INFO L137 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2021-12-14 16:38:57,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 16:38:57,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 16:38:57,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 16:38:57,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 16:38:57,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 16:38:57,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 16:38:57,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 16:38:57,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 16:38:57,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (1/1) ... [2021-12-14 16:38:57,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 16:38:57,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 16:38:57,359 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) [2021-12-14 16:38:57,370 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 [2021-12-14 16:38:57,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-14 16:38:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 16:38:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-14 16:38:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 16:38:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-14 16:38:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 16:38:57,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 16:38:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 16:38:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 16:38:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 16:38:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-14 16:38:57,395 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-14 16:38:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 16:38:57,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 16:38:57,397 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-14 16:38:57,552 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 16:38:57,553 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 16:38:57,717 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 16:38:57,743 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 16:38:57,750 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 16:38:57,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:38:57 BoogieIcfgContainer [2021-12-14 16:38:57,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 16:38:57,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 16:38:57,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 16:38:57,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 16:38:57,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:38:56" (1/3) ... [2021-12-14 16:38:57,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b1991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:38:57, skipping insertion in model container [2021-12-14 16:38:57,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:38:57" (2/3) ... [2021-12-14 16:38:57,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b1991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:38:57, skipping insertion in model container [2021-12-14 16:38:57,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:38:57" (3/3) ... [2021-12-14 16:38:57,763 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-12-14 16:38:57,769 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-14 16:38:57,769 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 16:38:57,769 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-14 16:38:57,769 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-14 16:38:57,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,796 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,796 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,796 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,799 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,800 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,800 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,801 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,809 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,809 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,809 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,809 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,809 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-14 16:38:57,811 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-14 16:38:57,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 16:38:57,868 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 16:38:57,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-12-14 16:38:57,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 106 transitions, 220 flow [2021-12-14 16:38:57,917 INFO L129 PetriNetUnfolder]: 4/123 cut-off events. [2021-12-14 16:38:57,918 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-14 16:38:57,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 123 events. 4/123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 171 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 76. Up to 3 conditions per place. [2021-12-14 16:38:57,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 106 transitions, 220 flow [2021-12-14 16:38:57,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 92 transitions, 190 flow [2021-12-14 16:38:57,935 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-12-14 16:38:57,935 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-14 16:38:57,936 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:38:57,936 INFO L254 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] [2021-12-14 16:38:57,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-14 16:38:57,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:38:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash 262582575, now seen corresponding path program 1 times [2021-12-14 16:38:57,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:38:57,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203549877] [2021-12-14 16:38:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:38:57,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:38:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:38:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:38:58,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:38:58,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203549877] [2021-12-14 16:38:58,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203549877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:38:58,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:38:58,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:38:58,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492649517] [2021-12-14 16:38:58,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:38:58,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:38:58,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:38:58,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:38:58,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:38:58,320 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 106 [2021-12-14 16:38:58,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 92 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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) [2021-12-14 16:38:58,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:38:58,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 106 [2021-12-14 16:38:58,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:38:58,401 INFO L129 PetriNetUnfolder]: 3/105 cut-off events. [2021-12-14 16:38:58,402 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-14 16:38:58,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 105 events. 3/105 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 39. Up to 12 conditions per place. [2021-12-14 16:38:58,404 INFO L132 encePairwiseOnDemand]: 91/106 looper letters, 15 selfloop transitions, 13 changer transitions 1/92 dead transitions. [2021-12-14 16:38:58,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 92 transitions, 248 flow [2021-12-14 16:38:58,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:38:58,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:38:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 556 transitions. [2021-12-14 16:38:58,416 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7493261455525606 [2021-12-14 16:38:58,417 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 556 transitions. [2021-12-14 16:38:58,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 556 transitions. [2021-12-14 16:38:58,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:38:58,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 556 transitions. [2021-12-14 16:38:58,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 79.42857142857143) internal successors, (556), 7 states have internal predecessors, (556), 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) [2021-12-14 16:38:58,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2021-12-14 16:38:58,434 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2021-12-14 16:38:58,435 INFO L186 Difference]: Start difference. First operand has 93 places, 92 transitions, 190 flow. Second operand 7 states and 556 transitions. [2021-12-14 16:38:58,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 92 transitions, 248 flow [2021-12-14 16:38:58,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-14 16:38:58,441 INFO L242 Difference]: Finished difference. Result has 95 places, 89 transitions, 222 flow [2021-12-14 16:38:58,442 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=222, PETRI_PLACES=95, PETRI_TRANSITIONS=89} [2021-12-14 16:38:58,445 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 2 predicate places. [2021-12-14 16:38:58,445 INFO L470 AbstractCegarLoop]: Abstraction has has 95 places, 89 transitions, 222 flow [2021-12-14 16:38:58,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 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) [2021-12-14 16:38:58,445 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:38:58,446 INFO L254 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] [2021-12-14 16:38:58,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 16:38:58,446 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-14 16:38:58,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:38:58,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1110563530, now seen corresponding path program 1 times [2021-12-14 16:38:58,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:38:58,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070314794] [2021-12-14 16:38:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:38:58,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:38:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:38:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:38:58,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:38:58,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070314794] [2021-12-14 16:38:58,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070314794] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:38:58,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:38:58,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 16:38:58,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190399699] [2021-12-14 16:38:58,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:38:58,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 16:38:58,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:38:58,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 16:38:58,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 16:38:58,534 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 106 [2021-12-14 16:38:58,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 89 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2021-12-14 16:38:58,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:38:58,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 106 [2021-12-14 16:38:58,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:38:58,625 INFO L129 PetriNetUnfolder]: 3/101 cut-off events. [2021-12-14 16:38:58,625 INFO L130 PetriNetUnfolder]: For 18/20 co-relation queries the response was YES. [2021-12-14 16:38:58,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 101 events. 3/101 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 99. Up to 13 conditions per place. [2021-12-14 16:38:58,626 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 17 selfloop transitions, 11 changer transitions 0/90 dead transitions. [2021-12-14 16:38:58,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 90 transitions, 286 flow [2021-12-14 16:38:58,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 16:38:58,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-14 16:38:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 552 transitions. [2021-12-14 16:38:58,628 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7439353099730458 [2021-12-14 16:38:58,629 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 552 transitions. [2021-12-14 16:38:58,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 552 transitions. [2021-12-14 16:38:58,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:38:58,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 552 transitions. [2021-12-14 16:38:58,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 78.85714285714286) internal successors, (552), 7 states have internal predecessors, (552), 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) [2021-12-14 16:38:58,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2021-12-14 16:38:58,632 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 106.0) internal successors, (848), 8 states have internal predecessors, (848), 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) [2021-12-14 16:38:58,633 INFO L186 Difference]: Start difference. First operand has 95 places, 89 transitions, 222 flow. Second operand 7 states and 552 transitions. [2021-12-14 16:38:58,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 90 transitions, 286 flow [2021-12-14 16:38:58,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 90 transitions, 276 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-14 16:38:58,636 INFO L242 Difference]: Finished difference. Result has 97 places, 88 transitions, 240 flow [2021-12-14 16:38:58,637 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=240, PETRI_PLACES=97, PETRI_TRANSITIONS=88} [2021-12-14 16:38:58,637 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 4 predicate places. [2021-12-14 16:38:58,638 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 88 transitions, 240 flow [2021-12-14 16:38:58,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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) [2021-12-14 16:38:58,638 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:38:58,638 INFO L254 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] [2021-12-14 16:38:58,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 16:38:58,639 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-14 16:38:58,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:38:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash -367857545, now seen corresponding path program 1 times [2021-12-14 16:38:58,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:38:58,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872886458] [2021-12-14 16:38:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:38:58,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:38:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 16:38:58,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 16:38:58,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 16:38:58,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872886458] [2021-12-14 16:38:58,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872886458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 16:38:58,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 16:38:58,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 16:38:58,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971128784] [2021-12-14 16:38:58,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 16:38:58,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 16:38:58,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 16:38:58,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 16:38:58,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 16:38:58,738 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 106 [2021-12-14 16:38:58,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 88 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2021-12-14 16:38:58,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-14 16:38:58,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 106 [2021-12-14 16:38:58,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-14 16:38:58,785 INFO L129 PetriNetUnfolder]: 2/110 cut-off events. [2021-12-14 16:38:58,786 INFO L130 PetriNetUnfolder]: For 40/42 co-relation queries the response was YES. [2021-12-14 16:38:58,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 110 events. 2/110 cut-off events. For 40/42 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 111 event pairs, 0 based on Foata normal form. 3/112 useless extension candidates. Maximal degree in co-relation 112. Up to 15 conditions per place. [2021-12-14 16:38:58,788 INFO L132 encePairwiseOnDemand]: 101/106 looper letters, 11 selfloop transitions, 5 changer transitions 11/90 dead transitions. [2021-12-14 16:38:58,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 90 transitions, 283 flow [2021-12-14 16:38:58,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 16:38:58,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-14 16:38:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2021-12-14 16:38:58,790 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8773584905660378 [2021-12-14 16:38:58,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2021-12-14 16:38:58,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2021-12-14 16:38:58,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 16:38:58,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2021-12-14 16:38:58,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2021-12-14 16:38:58,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2021-12-14 16:38:58,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 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) [2021-12-14 16:38:58,792 INFO L186 Difference]: Start difference. First operand has 97 places, 88 transitions, 240 flow. Second operand 3 states and 279 transitions. [2021-12-14 16:38:58,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 90 transitions, 283 flow [2021-12-14 16:38:58,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 90 transitions, 265 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-12-14 16:38:58,796 INFO L242 Difference]: Finished difference. Result has 96 places, 78 transitions, 212 flow [2021-12-14 16:38:58,796 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=96, PETRI_TRANSITIONS=78} [2021-12-14 16:38:58,798 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 3 predicate places. [2021-12-14 16:38:58,798 INFO L470 AbstractCegarLoop]: Abstraction has has 96 places, 78 transitions, 212 flow [2021-12-14 16:38:58,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2021-12-14 16:38:58,798 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-14 16:38:58,799 INFO L254 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] [2021-12-14 16:38:58,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 16:38:58,799 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-12-14 16:38:58,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 16:38:58,801 INFO L85 PathProgramCache]: Analyzing trace with hash -771862539, now seen corresponding path program 1 times [2021-12-14 16:38:58,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 16:38:58,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195301398] [2021-12-14 16:38:58,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 16:38:58,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 16:38:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 16:38:58,842 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 16:38:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 16:38:58,888 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 16:38:58,889 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-14 16:38:58,889 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2021-12-14 16:38:58,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2021-12-14 16:38:58,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2021-12-14 16:38:58,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2021-12-14 16:38:58,895 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 5 remaining) [2021-12-14 16:38:58,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 16:38:58,900 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-14 16:38:58,904 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-14 16:38:58,904 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-14 16:38:58,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:38:58 BasicIcfg [2021-12-14 16:38:58,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-14 16:38:58,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 16:38:58,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 16:38:58,950 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 16:38:58,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:38:57" (3/4) ... [2021-12-14 16:38:58,956 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-14 16:38:59,002 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 16:38:59,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 16:38:59,003 INFO L158 Benchmark]: Toolchain (without parser) took 2586.85ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 65.1MB in the beginning and 69.4MB in the end (delta: -4.4MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2021-12-14 16:38:59,003 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 55.7MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 16:38:59,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.82ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 64.9MB in the beginning and 96.1MB in the end (delta: -31.3MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2021-12-14 16:38:59,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.27ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 92.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 16:38:59,005 INFO L158 Benchmark]: Boogie Preprocessor took 35.71ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 16:38:59,005 INFO L158 Benchmark]: RCFGBuilder took 427.16ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 73.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-14 16:38:59,006 INFO L158 Benchmark]: TraceAbstraction took 1194.63ms. Allocated memory is still 142.6MB. Free memory was 72.4MB in the beginning and 73.6MB in the end (delta: -1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 16:38:59,006 INFO L158 Benchmark]: Witness Printer took 52.49ms. Allocated memory is still 142.6MB. Free memory was 73.6MB in the beginning and 69.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 16:38:59,008 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 55.7MB in the beginning and 55.7MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.82ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 64.9MB in the beginning and 96.1MB in the end (delta: -31.3MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.27ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 92.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.71ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.16ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 73.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1194.63ms. Allocated memory is still 142.6MB. Free memory was 72.4MB in the beginning and 73.6MB in the end (delta: -1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.49ms. Allocated memory is still 142.6MB. Free memory was 73.6MB in the beginning and 69.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={3:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={4:0}, t1={3:0}] [L1698] 0 int pdev; VAL [mutex={4:0}, pdev=0, t1={3:0}] [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 VAL [mutex={4:0}, pdev=1, t1={3:0}] [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={4:0}, pdev=1, t1={3:0}] [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, mutex={4:0}, pdev=1, t1={3:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1713] 0 return 0; VAL [\result=0, arg={0:0}, mutex={4:0}, pdev=1, t1={3:0}] [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) VAL [arg={0:0}, module_init()=0, mutex={4:0}, pdev=1, t1={3:0}] [L1735] CALL 0 module_exit() [L1721] 0 void *status; VAL [arg={0:0}, mutex={4:0}, pdev=1, status={5:0}, t1={3:0}] [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: 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: 1695]: 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: 1695]: 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: 1712]: 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 3 procedures, 111 locations, 5 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: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 43 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 0.3s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 157 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-12-14 16:38:59,055 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