./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i --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/13-privatized_19-publish-precision_unknown_2_neg.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/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_19-publish-precision_unknown_2_neg.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 14:53:49,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:53:49,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:53:49,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:53:49,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:53:49,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:53:49,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:53:49,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:53:49,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:53:49,810 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:53:49,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:53:49,811 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:53:49,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:53:49,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:53:49,812 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:53:49,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:53:49,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:53:49,813 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:53:49,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:53:49,813 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:53:49,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:53:49,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:53:49,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:53:49,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:53:49,814 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:53:49,815 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:53:49,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:53:49,815 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:53:49,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:53:49,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:53:49,816 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:53:49,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:53:49,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:53:49,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:53:49,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:53:49,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:53:49,817 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:53:49,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:53:49,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:53:49,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:53:49,817 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:53:49,818 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:53:49,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:53:49,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:53:49,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:53:49,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:53:49,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:53:49,988 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:53:50,000 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:53:50,001 INFO L431 ainManager$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/13-privatized_19-publish-precision_unknown_2_neg.yml/witness.yml [2024-02-07 14:53:50,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:53:50,102 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:53:50,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2024-02-07 14:53:51,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:53:51,303 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:53:51,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i [2024-02-07 14:53:51,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cd1ae65/51d73579b03445dd9d8269c40e7c6462/FLAG8a1e6feaf [2024-02-07 14:53:51,324 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cd1ae65/51d73579b03445dd9d8269c40e7c6462 [2024-02-07 14:53:51,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:53:51,326 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:53:51,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:53:51,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:53:51,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:53:51,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:53:50" (1/2) ... [2024-02-07 14:53:51,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd5f35c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:51, skipping insertion in model container [2024-02-07 14:53:51,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:53:50" (1/2) ... [2024-02-07 14:53:51,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@765a6e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:53:51, skipping insertion in model container [2024-02-07 14:53:51,334 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:53:51" (2/2) ... [2024-02-07 14:53:51,334 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd5f35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51, skipping insertion in model container [2024-02-07 14:53:51,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:53:51" (2/2) ... [2024-02-07 14:53:51,335 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:53:51,358 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:53:51,359 INFO L76 edCorrectnessWitness]: Location invariant before [L691-L691] glob1 == 0 [2024-02-07 14:53:51,359 INFO L76 edCorrectnessWitness]: Location invariant before [L699-L699] ((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5) [2024-02-07 14:53:51,359 INFO L76 edCorrectnessWitness]: Location invariant before [L688-L688] glob1 == 5 [2024-02-07 14:53:51,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:53:51,525 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] [2024-02-07 14:53:51,654 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:53:51,662 INFO L203 MainTranslator]: Completed pre-run [2024-02-07 14:53:51,672 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_2_neg.i[1103,1116] Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:53:51,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:53:51,775 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:53:51,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51 WrapperNode [2024-02-07 14:53:51,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:53:51,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:53:51,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:53:51,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:53:51,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,819 INFO L138 Inliner]: procedures = 163, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2024-02-07 14:53:51,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:53:51,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:53:51,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:53:51,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:53:51,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,830 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,840 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-02-07 14:53:51,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:53:51,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:53:51,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:53:51,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:53:51,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (1/1) ... [2024-02-07 14:53:51,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:53:51,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:53:51,876 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 14:53:51,886 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 14:53:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:53:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:53:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:53:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:53:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:53:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:53:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:53:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:53:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 14:53:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:53:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:53:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 14:53:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 14:53:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:53:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:53:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:53:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:53:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:53:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 14:53:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:53:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:53:51,914 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 14:53:52,021 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:53:52,023 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:53:52,154 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:53:52,154 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:53:52,268 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:53:52,268 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:53:52,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:53:52 BoogieIcfgContainer [2024-02-07 14:53:52,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:53:52,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:53:52,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:53:52,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:53:52,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:53:50" (1/4) ... [2024-02-07 14:53:52,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c86565f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:53:52, skipping insertion in model container [2024-02-07 14:53:52,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:53:51" (2/4) ... [2024-02-07 14:53:52,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c86565f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:53:52, skipping insertion in model container [2024-02-07 14:53:52,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:53:51" (3/4) ... [2024-02-07 14:53:52,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c86565f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:53:52, skipping insertion in model container [2024-02-07 14:53:52,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:53:52" (4/4) ... [2024-02-07 14:53:52,277 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_neg.i [2024-02-07 14:53:52,290 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:53:52,291 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-02-07 14:53:52,291 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:53:52,329 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-07 14:53:52,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 34 transitions, 75 flow [2024-02-07 14:53:52,385 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-02-07 14:53:52,385 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 14:53:52,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 33 events. 1/33 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-02-07 14:53:52,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 34 transitions, 75 flow [2024-02-07 14:53:52,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 31 transitions, 65 flow [2024-02-07 14:53:52,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:53:52,413 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;@7435fa0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:53:52,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-02-07 14:53:52,418 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:53:52,419 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-02-07 14:53:52,419 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:53:52,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:52,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-07 14:53:52,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 14:53:52,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:52,426 INFO L85 PathProgramCache]: Analyzing trace with hash 2115554211, now seen corresponding path program 1 times [2024-02-07 14:53:52,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:52,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675726748] [2024-02-07 14:53:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:52,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:53:52,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:52,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675726748] [2024-02-07 14:53:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675726748] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:52,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:52,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:53:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026736112] [2024-02-07 14:53:52,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:52,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:53:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:52,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:53:52,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:53:52,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-02-07 14:53:52,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-02-07 14:53:52,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:52,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-02-07 14:53:52,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:53:52,919 INFO L124 PetriNetUnfolderBase]: 69/199 cut-off events. [2024-02-07 14:53:52,919 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:53:52,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 199 events. 69/199 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 799 event pairs, 45 based on Foata normal form. 12/202 useless extension candidates. Maximal degree in co-relation 358. Up to 104 conditions per place. [2024-02-07 14:53:52,923 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 23 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2024-02-07 14:53:52,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 125 flow [2024-02-07 14:53:52,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:53:52,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:53:52,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-02-07 14:53:52,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2024-02-07 14:53:52,936 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 65 flow. Second operand 3 states and 60 transitions. [2024-02-07 14:53:52,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 125 flow [2024-02-07 14:53:52,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:53:52,940 INFO L231 Difference]: Finished difference. Result has 35 places, 29 transitions, 71 flow [2024-02-07 14:53:52,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2024-02-07 14:53:52,946 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2024-02-07 14:53:52,946 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 71 flow [2024-02-07 14:53:52,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-02-07 14:53:52,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:52,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:53:52,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:53:52,947 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 14:53:52,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:52,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1528072307, now seen corresponding path program 1 times [2024-02-07 14:53:52,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:52,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288341439] [2024-02-07 14:53:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:52,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:53,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:53:53,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:53,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288341439] [2024-02-07 14:53:53,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288341439] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:53,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:53,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:53:53,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923041308] [2024-02-07 14:53:53,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:53,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:53:53,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:53,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:53:53,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:53:53,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34 [2024-02-07 14:53:53,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-02-07 14:53:53,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:53,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34 [2024-02-07 14:53:53,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:53:53,164 INFO L124 PetriNetUnfolderBase]: 96/254 cut-off events. [2024-02-07 14:53:53,165 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-02-07 14:53:53,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 254 events. 96/254 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1031 event pairs, 44 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 501. Up to 104 conditions per place. [2024-02-07 14:53:53,166 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 26 selfloop transitions, 8 changer transitions 9/50 dead transitions. [2024-02-07 14:53:53,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 205 flow [2024-02-07 14:53:53,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:53:53,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:53:53,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2024-02-07 14:53:53,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-02-07 14:53:53,168 INFO L175 Difference]: Start difference. First operand has 35 places, 29 transitions, 71 flow. Second operand 5 states and 85 transitions. [2024-02-07 14:53:53,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 205 flow [2024-02-07 14:53:53,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 50 transitions, 195 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:53:53,170 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 116 flow [2024-02-07 14:53:53,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-02-07 14:53:53,171 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2024-02-07 14:53:53,171 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 116 flow [2024-02-07 14:53:53,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2024-02-07 14:53:53,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:53,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:53:53,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:53:53,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 14:53:53,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:53,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1901112133, now seen corresponding path program 1 times [2024-02-07 14:53:53,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:53,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231275373] [2024-02-07 14:53:53,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:53,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:53,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:53:53,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:53,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231275373] [2024-02-07 14:53:53,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231275373] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:53,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:53,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:53:53,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160615566] [2024-02-07 14:53:53,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:53,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:53:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:53,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:53:53,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:53:53,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-02-07 14:53:53,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-02-07 14:53:53,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:53,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-02-07 14:53:53,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:53:53,305 INFO L124 PetriNetUnfolderBase]: 68/198 cut-off events. [2024-02-07 14:53:53,305 INFO L125 PetriNetUnfolderBase]: For 101/109 co-relation queries the response was YES. [2024-02-07 14:53:53,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 198 events. 68/198 cut-off events. For 101/109 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 771 event pairs, 44 based on Foata normal form. 4/200 useless extension candidates. Maximal degree in co-relation 467. Up to 104 conditions per place. [2024-02-07 14:53:53,306 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 16 selfloop transitions, 2 changer transitions 9/35 dead transitions. [2024-02-07 14:53:53,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 170 flow [2024-02-07 14:53:53,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:53:53,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:53:53,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2024-02-07 14:53:53,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5588235294117647 [2024-02-07 14:53:53,307 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 116 flow. Second operand 3 states and 57 transitions. [2024-02-07 14:53:53,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 170 flow [2024-02-07 14:53:53,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:53:53,309 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 76 flow [2024-02-07 14:53:53,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2024-02-07 14:53:53,310 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2024-02-07 14:53:53,310 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 76 flow [2024-02-07 14:53:53,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-02-07 14:53:53,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:53,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:53:53,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:53:53,311 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 14:53:53,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:53,311 INFO L85 PathProgramCache]: Analyzing trace with hash -829028076, now seen corresponding path program 1 times [2024-02-07 14:53:53,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:53,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061669689] [2024-02-07 14:53:53,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:53,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:53:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:53:53,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:53:53,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061669689] [2024-02-07 14:53:53,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061669689] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:53:53,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:53:53,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:53:53,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124684772] [2024-02-07 14:53:53,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:53:53,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:53:53,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:53:53,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:53:53,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:53:53,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-02-07 14:53:53,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-02-07 14:53:53,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:53:53,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-02-07 14:53:53,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:53:53,416 INFO L124 PetriNetUnfolderBase]: 11/58 cut-off events. [2024-02-07 14:53:53,416 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-02-07 14:53:53,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 58 events. 11/58 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 5 based on Foata normal form. 7/61 useless extension candidates. Maximal degree in co-relation 116. Up to 21 conditions per place. [2024-02-07 14:53:53,417 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 7 selfloop transitions, 3 changer transitions 11/28 dead transitions. [2024-02-07 14:53:53,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 28 transitions, 120 flow [2024-02-07 14:53:53,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:53:53,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:53:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-02-07 14:53:53,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6176470588235294 [2024-02-07 14:53:53,420 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 76 flow. Second operand 3 states and 63 transitions. [2024-02-07 14:53:53,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 28 transitions, 120 flow [2024-02-07 14:53:53,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 100 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-02-07 14:53:53,422 INFO L231 Difference]: Finished difference. Result has 31 places, 16 transitions, 44 flow [2024-02-07 14:53:53,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=31, PETRI_TRANSITIONS=16} [2024-02-07 14:53:53,424 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2024-02-07 14:53:53,424 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 44 flow [2024-02-07 14:53:53,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-02-07 14:53:53,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:53:53,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:53:53,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 14:53:53,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-02-07 14:53:53,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:53:53,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1848110235, now seen corresponding path program 1 times [2024-02-07 14:53:53,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:53:53,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583519184] [2024-02-07 14:53:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:53:53,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:53:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:53:53,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:53:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:53:53,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:53:53,489 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:53:53,490 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-02-07 14:53:53,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 7 remaining) [2024-02-07 14:53:53,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-02-07 14:53:53,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 7 remaining) [2024-02-07 14:53:53,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 7 remaining) [2024-02-07 14:53:53,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 7 remaining) [2024-02-07 14:53:53,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 7 remaining) [2024-02-07 14:53:53,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 14:53:53,492 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-02-07 14:53:53,497 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:53:53,497 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:53:53,529 INFO L503 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-02-07 14:53:53,529 INFO L504 ceAbstractionStarter]: WitnessConsidered=3 [2024-02-07 14:53:53,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:53:53 BasicIcfg [2024-02-07 14:53:53,530 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:53:53,531 INFO L158 Benchmark]: Toolchain (without parser) took 2204.80ms. Allocated memory is still 155.2MB. Free memory was 118.0MB in the beginning and 85.7MB in the end (delta: 32.3MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2024-02-07 14:53:53,532 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 79.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:53:53,534 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 90.4MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:53:53,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.41ms. Allocated memory is still 155.2MB. Free memory was 118.0MB in the beginning and 94.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-02-07 14:53:53,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.21ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 92.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:53:53,537 INFO L158 Benchmark]: Boogie Preprocessor took 31.82ms. Allocated memory is still 155.2MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:53:53,542 INFO L158 Benchmark]: RCFGBuilder took 416.55ms. Allocated memory is still 155.2MB. Free memory was 90.4MB in the beginning and 63.9MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-02-07 14:53:53,545 INFO L158 Benchmark]: TraceAbstraction took 1260.25ms. Allocated memory is still 155.2MB. Free memory was 63.1MB in the beginning and 85.7MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:53:53,547 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 0.17ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 79.1kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 90.4MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.41ms. Allocated memory is still 155.2MB. Free memory was 118.0MB in the beginning and 94.5MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.21ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 92.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.82ms. Allocated memory is still 155.2MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.55ms. Allocated memory is still 155.2MB. Free memory was 90.4MB in the beginning and 63.9MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1260.25ms. Allocated memory is still 155.2MB. Free memory was 63.1MB in the beginning and 85.7MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]]]] VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[5]]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[glob1],IntegerLiteral[5]],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]]]]]] [L699] CALL 0 __VERIFIER_assert(!(glob1 == 5)) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 699]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: 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: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 53 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 58 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 2 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=2, InterpolantAutomatonStates: 14, 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 14:53:53,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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