./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/chl-file-item-subst.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 Calling Ultimate with: /root/.sdkman/candidates/java/current/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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/chl-file-item-subst.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:30:29,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:30:29,797 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:30:29,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:30:29,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:30:29,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:30:29,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:30:29,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:30:29,827 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:30:29,830 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:30:29,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:30:29,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:30:29,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:30:29,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:30:29,833 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:30:29,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:30:29,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:30:29,833 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:30:29,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:30:29,834 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:30:29,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:30:29,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:30:29,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:30:29,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:30:29,835 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:30:29,835 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:30:29,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:30:29,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:30:29,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:30:29,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:30:29,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:30:29,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:30:29,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:30:29,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:30:29,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:30:29,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:30:29,838 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:30:29,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:30:29,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:30:29,839 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:30:29,839 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:30:29,839 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:30:29,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:30:29,839 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:30:30,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:30:30,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:30:30,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:30:30,127 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:30:30,128 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:30:30,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/chl-file-item-subst.wvr.yml/witness.yml [2024-02-07 14:30:30,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:30:30,200 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:30:30,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2024-02-07 14:30:31,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:30:31,394 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:30:31,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2024-02-07 14:30:31,401 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfb926a6/3c3b08b178034d27a9693c8250965637/FLAG7fa25cf77 [2024-02-07 14:30:31,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfb926a6/3c3b08b178034d27a9693c8250965637 [2024-02-07 14:30:31,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:30:31,417 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:30:31,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:30:31,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:30:31,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:30:31,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:30:30" (1/2) ... [2024-02-07 14:30:31,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31883611 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:30:31, skipping insertion in model container [2024-02-07 14:30:31,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:30:30" (1/2) ... [2024-02-07 14:30:31,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52f36641 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:30:31, skipping insertion in model container [2024-02-07 14:30:31,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:30:31" (2/2) ... [2024-02-07 14:30:31,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31883611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31, skipping insertion in model container [2024-02-07 14:30:31,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:30:31" (2/2) ... [2024-02-07 14:30:31,428 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:30:31,448 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:30:31,449 INFO L76 edCorrectnessWitness]: Location invariant before [L69-L69] is_null_3 == (_Bool)0 || is_null_3 == (_Bool)1 [2024-02-07 14:30:31,449 INFO L76 edCorrectnessWitness]: Location invariant before [L71-L71] filename_is_null_2 == (_Bool)0 || filename_is_null_2 == (_Bool)1 [2024-02-07 14:30:31,449 INFO L76 edCorrectnessWitness]: Location invariant before [L70-L70] is_null_6 == (_Bool)0 || is_null_6 == (_Bool)1 [2024-02-07 14:30:31,449 INFO L76 edCorrectnessWitness]: Location invariant before [L90-L90] (1 <= b) && (b != 0) [2024-02-07 14:30:31,449 INFO L76 edCorrectnessWitness]: Location invariant before [L91-L91] (b <= -1) && (b != 0) [2024-02-07 14:30:31,450 INFO L76 edCorrectnessWitness]: Location invariant before [L75-L75] filename_is_null_8 == (_Bool)0 || filename_is_null_8 == (_Bool)1 [2024-02-07 14:30:31,450 INFO L76 edCorrectnessWitness]: Location invariant before [L72-L72] filename_is_null_5 == (_Bool)0 || filename_is_null_5 == (_Bool)1 [2024-02-07 14:30:31,450 INFO L76 edCorrectnessWitness]: Location invariant before [L68-L68] is_null_0 == (_Bool)0 || is_null_0 == (_Bool)1 [2024-02-07 14:30:31,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:30:31,636 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c[3054,3067] [2024-02-07 14:30:31,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:30:31,655 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:30:31,724 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c[3054,3067] Start Parsing Local Start Parsing Local [2024-02-07 14:30:31,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:30:31,743 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:30:31,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31 WrapperNode [2024-02-07 14:30:31,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:30:31,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:30:31,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:30:31,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:30:31,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,780 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 220 [2024-02-07 14:30:31,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:30:31,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:30:31,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:30:31,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:30:31,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,801 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,820 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-02-07 14:30:31,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,830 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:30:31,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:30:31,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:30:31,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:30:31,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (1/1) ... [2024-02-07 14:30:31,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:30:31,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:30:31,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:30:31,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:30:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:30:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-07 14:30:31,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-07 14:30:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-07 14:30:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-07 14:30:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-07 14:30:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-07 14:30:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:30:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:30:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:30:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:30:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:30:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:30:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:30:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:30:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:30:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:30:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:30:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:30:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:30:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:30:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:30:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:30:31,970 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:30:32,059 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:30:32,061 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:30:32,388 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:30:32,388 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:30:32,571 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:30:32,571 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:30:32,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:30:32 BoogieIcfgContainer [2024-02-07 14:30:32,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:30:32,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:30:32,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:30:32,579 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:30:32,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:30:30" (1/4) ... [2024-02-07 14:30:32,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cbeec6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:30:32, skipping insertion in model container [2024-02-07 14:30:32,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:30:31" (2/4) ... [2024-02-07 14:30:32,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cbeec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:30:32, skipping insertion in model container [2024-02-07 14:30:32,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:30:31" (3/4) ... [2024-02-07 14:30:32,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cbeec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:30:32, skipping insertion in model container [2024-02-07 14:30:32,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:30:32" (4/4) ... [2024-02-07 14:30:32,582 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2024-02-07 14:30:32,596 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:30:32,596 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-02-07 14:30:32,596 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:30:32,647 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-02-07 14:30:32,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 81 transitions, 183 flow [2024-02-07 14:30:32,711 INFO L124 PetriNetUnfolderBase]: 12/78 cut-off events. [2024-02-07 14:30:32,711 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-02-07 14:30:32,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 78 events. 12/78 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 194 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-02-07 14:30:32,718 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 81 transitions, 183 flow [2024-02-07 14:30:32,745 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 77 transitions, 172 flow [2024-02-07 14:30:32,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:30:32,756 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33295ffa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:30:32,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-02-07 14:30:32,759 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:30:32,759 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-07 14:30:32,759 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:30:32,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:30:32,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-07 14:30:32,760 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] === [2024-02-07 14:30:32,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:30:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash 20292, now seen corresponding path program 1 times [2024-02-07 14:30:32,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:30:32,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226333712] [2024-02-07 14:30:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:30:32,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:30:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:30:32,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:30:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:30:32,909 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:30:32,911 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:30:32,912 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 22 remaining) [2024-02-07 14:30:32,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 22 remaining) [2024-02-07 14:30:32,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 22 remaining) [2024-02-07 14:30:32,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 22 remaining) [2024-02-07 14:30:32,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 22 remaining) [2024-02-07 14:30:32,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 22 remaining) [2024-02-07 14:30:32,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 22 remaining) [2024-02-07 14:30:32,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 22 remaining) [2024-02-07 14:30:32,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 22 remaining) [2024-02-07 14:30:32,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 22 remaining) [2024-02-07 14:30:32,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 22 remaining) [2024-02-07 14:30:32,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 22 remaining) [2024-02-07 14:30:32,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 22 remaining) [2024-02-07 14:30:32,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 22 remaining) [2024-02-07 14:30:32,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 22 remaining) [2024-02-07 14:30:32,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 22 remaining) [2024-02-07 14:30:32,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 22 remaining) [2024-02-07 14:30:32,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 22 remaining) [2024-02-07 14:30:32,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 22 remaining) [2024-02-07 14:30:32,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 22 remaining) [2024-02-07 14:30:32,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 22 remaining) [2024-02-07 14:30:32,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 22 remaining) [2024-02-07 14:30:32,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:30:32,921 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2024-02-07 14:30:32,931 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:30:32,932 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:30:32,948 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-02-07 14:30:32,948 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-02-07 14:30:32,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:30:32 BasicIcfg [2024-02-07 14:30:32,949 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:30:32,952 INFO L158 Benchmark]: Toolchain (without parser) took 1532.50ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 104.5MB in the beginning and 157.2MB in the end (delta: -52.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:30:32,953 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:30:32,954 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:30:32,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.94ms. Allocated memory is still 151.0MB. Free memory was 104.5MB in the beginning and 89.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-02-07 14:30:32,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.57ms. Allocated memory is still 151.0MB. Free memory was 89.7MB in the beginning and 87.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-07 14:30:32,955 INFO L158 Benchmark]: Boogie Preprocessor took 51.40ms. Allocated memory is still 151.0MB. Free memory was 87.1MB in the beginning and 84.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:30:32,957 INFO L158 Benchmark]: RCFGBuilder took 739.78ms. Allocated memory is still 151.0MB. Free memory was 84.5MB in the beginning and 57.9MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-02-07 14:30:32,957 INFO L158 Benchmark]: TraceAbstraction took 372.73ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 56.9MB in the beginning and 157.2MB in the end (delta: -100.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:30:32,960 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.94ms. Allocated memory is still 151.0MB. Free memory was 104.5MB in the beginning and 89.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.57ms. Allocated memory is still 151.0MB. Free memory was 89.7MB in the beginning and 87.1MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.40ms. Allocated memory is still 151.0MB. Free memory was 87.1MB in the beginning and 84.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 739.78ms. Allocated memory is still 151.0MB. Free memory was 84.5MB in the beginning and 57.9MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 372.73ms. Allocated memory was 151.0MB in the beginning and 203.4MB in the end (delta: 52.4MB). Free memory was 56.9MB in the beginning and 157.2MB in the end (delta: -100.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 68]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] int filename_1, filename_4, filename_7, result_9, result_10, result_11; [L39] _Bool is_null_0, is_null_3, is_null_6, filename_is_null_2, filename_is_null_5, filename_is_null_8; [L62] pthread_t t1, t2, t3; [L64] filename_1 = __VERIFIER_nondet_int() [L65] filename_4 = __VERIFIER_nondet_int() [L66] filename_7 = __VERIFIER_nondet_int() [L67] is_null_0 = __VERIFIER_nondet_bool() [L68] CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[is_null_0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[is_null_0],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [filename_1=0, filename_4=0, filename_7=0, filename_is_null_2=0, filename_is_null_5=0, filename_is_null_8=0, is_null_0=2, is_null_3=0, is_null_6=0, result_10=0, result_11=0, result_9=0, t1={3:0}, t2={6:0}, t3={5:0}] - UnprovableResult [Line: 90]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 22 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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2024-02-07 14:30:32,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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