./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe029_power.opt_pso.opt_rmo.opt.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2cc22fce Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe029_power.opt_pso.opt_rmo.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_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-tmp.fs.goblint-validation-2cc22fc-m [2024-07-22 18:15:41,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-22 18:15:41,841 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-22 18:15:41,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-22 18:15:41,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-22 18:15:41,873 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-22 18:15:41,874 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-22 18:15:41,875 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-22 18:15:41,876 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-22 18:15:41,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-22 18:15:41,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-22 18:15:41,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-22 18:15:41,878 INFO L153 SettingsManager]: * Use SBE=true [2024-07-22 18:15:41,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-22 18:15:41,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-22 18:15:41,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-22 18:15:41,885 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-22 18:15:41,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-22 18:15:41,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-22 18:15:41,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-22 18:15:41,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-22 18:15:41,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-22 18:15:41,887 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-22 18:15:41,887 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-22 18:15:41,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-22 18:15:41,888 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-22 18:15:41,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-22 18:15:41,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-22 18:15:41,889 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-22 18:15:41,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-22 18:15:41,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 18:15:41,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-22 18:15:41,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-22 18:15:41,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-22 18:15:41,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-22 18:15:41,891 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-22 18:15:41,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-22 18:15:41,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-22 18:15:41,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-22 18:15:41,892 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-22 18:15:41,892 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-22 18:15:41,893 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-22 18:15:41,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-07-22 18:15:42,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-22 18:15:42,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-22 18:15:42,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-22 18:15:42,158 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-22 18:15:42,158 INFO L274 PluginConnector]: CDTParser initialized [2024-07-22 18:15:42,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i [2024-07-22 18:15:43,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-22 18:15:43,574 INFO L384 CDTParser]: Found 1 translation units. [2024-07-22 18:15:43,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i [2024-07-22 18:15:43,587 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/65e361454/c0762951ad044ac7b0d7357dee9bc881/FLAGf16f4aa7f [2024-07-22 18:15:43,600 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/65e361454/c0762951ad044ac7b0d7357dee9bc881 [2024-07-22 18:15:43,602 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-07-22 18:15:43,603 INFO L274 PluginConnector]: Witness Parser initialized [2024-07-22 18:15:43,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-rel/safe029_power.opt_pso.opt_rmo.opt.yml/witness.yml [2024-07-22 18:15:43,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-22 18:15:43,665 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-07-22 18:15:43,666 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-22 18:15:43,666 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-22 18:15:43,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-22 18:15:43,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:15:43" (1/2) ... [2024-07-22 18:15:43,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1474c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:15:43, skipping insertion in model container [2024-07-22 18:15:43,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:15:43" (1/2) ... [2024-07-22 18:15:43,674 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a6157a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:15:43, skipping insertion in model container [2024-07-22 18:15:43,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 06:15:43" (2/2) ... [2024-07-22 18:15:43,676 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1474c8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:43, skipping insertion in model container [2024-07-22 18:15:43,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 06:15:43" (2/2) ... [2024-07-22 18:15:43,677 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-07-22 18:15:43,707 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-07-22 18:15:43,708 INFO L97 edCorrectnessWitness]: Location invariant before [L794-L794] ! multithreaded || ((((((((((((((0LL - (long long )x$r_buff0_thd2) + (long long )x$w_buff0 >= 0LL && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )x) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )x) + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff0_used >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff0_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0_used - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff1 - (long long )x$w_buff1_used >= 0LL) [2024-07-22 18:15:43,708 INFO L97 edCorrectnessWitness]: Location invariant before [L793-L793] ! multithreaded || ((((((((((((((0LL - (long long )x$r_buff0_thd2) + (long long )x$w_buff0 >= 0LL && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff0 >= 0LL) && (0LL - (long long )x$r_buff1_thd2) + (long long )x$w_buff1 >= 0LL) && (1LL - (long long )x) + (long long )x$r_buff0_thd2 >= 0LL) && (1LL - (long long )x) + (long long )x$w_buff0 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$r_buff1_thd2 >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff0_used >= 0LL) && (long long )x$r_buff0_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$r_buff1_thd2 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff0_used >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1 >= 0LL) && (long long )x$w_buff0 - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff0_used - (long long )x$w_buff1_used >= 0LL) && (long long )x$w_buff1 - (long long )x$w_buff1_used >= 0LL) [2024-07-22 18:15:43,709 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-07-22 18:15:43,709 INFO L106 edCorrectnessWitness]: ghost_update [L791-L791] multithreaded = 1; [2024-07-22 18:15:43,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-22 18:15:43,951 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i[967,980] [2024-07-22 18:15:44,130 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 18:15:44,143 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-07-22 18:15:44,177 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i[967,980] Start Parsing Local Start Parsing Local Start Parsing Local [2024-07-22 18:15:44,264 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 18:15:44,303 INFO L206 MainTranslator]: Completed translation [2024-07-22 18:15:44,304 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44 WrapperNode [2024-07-22 18:15:44,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-22 18:15:44,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-22 18:15:44,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-22 18:15:44,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-22 18:15:44,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,359 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 126 [2024-07-22 18:15:44,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-22 18:15:44,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-22 18:15:44,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-22 18:15:44,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-22 18:15:44,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-22 18:15:44,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-22 18:15:44,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-22 18:15:44,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-22 18:15:44,392 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (1/1) ... [2024-07-22 18:15:44,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 18:15:44,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 18:15:44,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-07-22 18:15:44,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-07-22 18:15:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-07-22 18:15:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-22 18:15:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-07-22 18:15:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-07-22 18:15:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-07-22 18:15:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-07-22 18:15:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-22 18:15:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-07-22 18:15:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-22 18:15:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-22 18:15:44,527 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-22 18:15:44,672 INFO L244 CfgBuilder]: Building ICFG [2024-07-22 18:15:44,674 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-22 18:15:44,952 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-22 18:15:44,953 INFO L293 CfgBuilder]: Performing block encoding [2024-07-22 18:15:45,083 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-22 18:15:45,083 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-07-22 18:15:45,085 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:15:45 BoogieIcfgContainer [2024-07-22 18:15:45,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-22 18:15:45,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-22 18:15:45,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-22 18:15:45,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-22 18:15:45,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:15:43" (1/4) ... [2024-07-22 18:15:45,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51765ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:15:45, skipping insertion in model container [2024-07-22 18:15:45,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 22.07 06:15:43" (2/4) ... [2024-07-22 18:15:45,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51765ecb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.07 06:15:45, skipping insertion in model container [2024-07-22 18:15:45,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 22.07 06:15:44" (3/4) ... [2024-07-22 18:15:45,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51765ecb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 22.07 06:15:45, skipping insertion in model container [2024-07-22 18:15:45,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:15:45" (4/4) ... [2024-07-22 18:15:45,097 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_power.opt_pso.opt_rmo.opt.i [2024-07-22 18:15:45,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-22 18:15:45,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-07-22 18:15:45,115 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-22 18:15:45,171 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-07-22 18:15:45,220 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 18:15:45,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-22 18:15:45,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 18:15:45,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-07-22 18:15:45,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-07-22 18:15:45,289 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-22 18:15:45,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-22 18:15:45,313 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=PARTIAL_ORDER_FA, 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;@428222b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 18:15:45,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-07-22 18:15:45,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-22 18:15:45,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 18:15:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash 302383596, now seen corresponding path program 1 times [2024-07-22 18:15:45,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 18:15:45,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496155080] [2024-07-22 18:15:45,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 18:15:45,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 18:15:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 18:15:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 18:15:45,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 18:15:45,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496155080] [2024-07-22 18:15:45,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496155080] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-22 18:15:45,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-22 18:15:45,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-07-22 18:15:45,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173871249] [2024-07-22 18:15:45,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-22 18:15:45,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-22 18:15:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 18:15:46,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-22 18:15:46,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-22 18:15:46,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:46,009 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 18:15:46,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-07-22 18:15:46,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:46,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-22 18:15:46,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-22 18:15:46,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 18:15:46,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1522871931, now seen corresponding path program 1 times [2024-07-22 18:15:46,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 18:15:46,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4194339] [2024-07-22 18:15:46,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 18:15:46,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 18:15:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 18:15:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 18:15:47,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 18:15:47,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4194339] [2024-07-22 18:15:47,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4194339] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-22 18:15:47,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-22 18:15:47,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-07-22 18:15:47,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827676410] [2024-07-22 18:15:47,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-22 18:15:47,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-07-22 18:15:47,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 18:15:47,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-07-22 18:15:47,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-07-22 18:15:47,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:47,133 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 18:15:47,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-07-22 18:15:47,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:47,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:47,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:47,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-22 18:15:47,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-22 18:15:47,246 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-22 18:15:47,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 18:15:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1107196692, now seen corresponding path program 1 times [2024-07-22 18:15:47,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 18:15:47,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876790840] [2024-07-22 18:15:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 18:15:47,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 18:15:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 18:15:47,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 18:15:47,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 18:15:47,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876790840] [2024-07-22 18:15:47,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876790840] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-22 18:15:47,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-22 18:15:47,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-07-22 18:15:47,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020537681] [2024-07-22 18:15:47,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-22 18:15:47,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-07-22 18:15:47,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 18:15:47,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-07-22 18:15:47,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-07-22 18:15:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:47,470 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 18:15:47,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-07-22 18:15:47,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:47,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-22 18:15:47,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-22 18:15:47,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-22 18:15:47,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-07-22 18:15:47,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-22 18:15:47,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 18:15:47,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1242076346, now seen corresponding path program 1 times [2024-07-22 18:15:47,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 18:15:47,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77056801] [2024-07-22 18:15:47,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 18:15:47,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 18:15:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 18:15:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 18:15:48,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 18:15:48,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77056801] [2024-07-22 18:15:48,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77056801] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-22 18:15:48,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-22 18:15:48,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-07-22 18:15:48,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539014801] [2024-07-22 18:15:48,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-22 18:15:48,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-07-22 18:15:48,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 18:15:48,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-07-22 18:15:48,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-07-22 18:15:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:48,725 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 18:15:48,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 11 states have internal predecessors, (26), 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) [2024-07-22 18:15:48,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:48,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-22 18:15:48,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-22 18:15:48,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:49,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-22 18:15:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-22 18:15:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-07-22 18:15:49,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-07-22 18:15:49,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-22 18:15:49,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 18:15:49,435 INFO L85 PathProgramCache]: Analyzing trace with hash -210828802, now seen corresponding path program 1 times [2024-07-22 18:15:49,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 18:15:49,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744176610] [2024-07-22 18:15:49,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 18:15:49,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 18:15:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 18:15:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 18:15:49,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 18:15:49,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744176610] [2024-07-22 18:15:49,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744176610] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-22 18:15:49,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-22 18:15:49,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-22 18:15:49,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38850031] [2024-07-22 18:15:49,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-22 18:15:49,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-22 18:15:49,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 18:15:49,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-22 18:15:49,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-07-22 18:15:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:49,630 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 18:15:49,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-07-22 18:15:49,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:49,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-22 18:15:49,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-22 18:15:49,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-07-22 18:15:49,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 18:15:49,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-22 18:15:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-22 18:15:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-22 18:15:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-07-22 18:15:49,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-22 18:15:49,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-07-22 18:15:49,842 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-07-22 18:15:49,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 18:15:49,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1843853808, now seen corresponding path program 2 times [2024-07-22 18:15:49,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 18:15:49,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537683033] [2024-07-22 18:15:49,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 18:15:49,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 18:15:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-07-22 18:15:49,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-07-22 18:15:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-07-22 18:15:49,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-07-22 18:15:49,917 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-07-22 18:15:49,918 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-07-22 18:15:49,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 5 remaining) [2024-07-22 18:15:49,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 5 remaining) [2024-07-22 18:15:49,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-07-22 18:15:49,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-07-22 18:15:49,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-07-22 18:15:49,925 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-07-22 18:15:49,926 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2024-07-22 18:15:49,929 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-22 18:15:49,930 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-22 18:15:49,972 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-07-22 18:15:49,973 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-07-22 18:15:49,974 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 06:15:49 BasicIcfg [2024-07-22 18:15:49,974 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-22 18:15:49,975 INFO L158 Benchmark]: Toolchain (without parser) took 6310.17ms. Allocated memory was 176.2MB in the beginning and 362.8MB in the end (delta: 186.6MB). Free memory was 105.1MB in the beginning and 140.2MB in the end (delta: -35.1MB). Peak memory consumption was 153.5MB. Max. memory is 16.1GB. [2024-07-22 18:15:49,975 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 18:15:49,976 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-22 18:15:49,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.92ms. Allocated memory is still 176.2MB. Free memory was 104.8MB in the beginning and 124.5MB in the end (delta: -19.6MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-07-22 18:15:49,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.30ms. Allocated memory is still 176.2MB. Free memory was 124.5MB in the beginning and 121.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-22 18:15:49,977 INFO L158 Benchmark]: Boogie Preprocessor took 29.46ms. Allocated memory is still 176.2MB. Free memory was 121.7MB in the beginning and 119.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-22 18:15:49,977 INFO L158 Benchmark]: RCFGBuilder took 695.24ms. Allocated memory is still 176.2MB. Free memory was 119.8MB in the beginning and 73.7MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-07-22 18:15:49,978 INFO L158 Benchmark]: TraceAbstraction took 4884.86ms. Allocated memory was 176.2MB in the beginning and 362.8MB in the end (delta: 186.6MB). Free memory was 72.9MB in the beginning and 140.2MB in the end (delta: -67.3MB). Peak memory consumption was 121.0MB. Max. memory is 16.1GB. [2024-07-22 18:15:49,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 138.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 107.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.92ms. Allocated memory is still 176.2MB. Free memory was 104.8MB in the beginning and 124.5MB in the end (delta: -19.6MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.30ms. Allocated memory is still 176.2MB. Free memory was 124.5MB in the beginning and 121.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.46ms. Allocated memory is still 176.2MB. Free memory was 121.7MB in the beginning and 119.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 695.24ms. Allocated memory is still 176.2MB. Free memory was 119.8MB in the beginning and 73.7MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4884.86ms. Allocated memory was 176.2MB in the beginning and 362.8MB in the end (delta: 186.6MB). Free memory was 72.9MB in the beginning and 140.2MB in the end (delta: -67.3MB). Peak memory consumption was 121.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 816, independent: 742, independent conditional: 468, independent unconditional: 274, dependent: 74, dependent conditional: 47, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 788, independent: 742, independent conditional: 468, independent unconditional: 274, dependent: 46, dependent conditional: 19, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 788, independent: 742, independent conditional: 468, independent unconditional: 274, dependent: 46, dependent conditional: 19, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 882, independent: 742, independent conditional: 25, independent unconditional: 717, dependent: 140, dependent conditional: 69, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 882, independent: 742, independent conditional: 25, independent unconditional: 717, dependent: 140, dependent conditional: 33, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 882, independent: 742, independent conditional: 25, independent unconditional: 717, dependent: 140, dependent conditional: 33, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 321, independent: 282, independent conditional: 8, independent unconditional: 274, dependent: 39, dependent conditional: 10, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 321, independent: 269, independent conditional: 0, independent unconditional: 269, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 52, independent: 13, independent conditional: 8, independent unconditional: 5, dependent: 39, dependent conditional: 10, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 13, independent conditional: 8, independent unconditional: 5, dependent: 39, dependent conditional: 10, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 329, independent: 87, independent conditional: 38, independent unconditional: 49, dependent: 242, dependent conditional: 61, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 882, independent: 460, independent conditional: 17, independent unconditional: 443, dependent: 101, dependent conditional: 23, dependent unconditional: 78, unknown: 321, unknown conditional: 18, unknown unconditional: 303] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 282, Positive conditional cache size: 8, Positive unconditional cache size: 274, Negative cache size: 39, Negative conditional cache size: 10, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 4, Independence queries for same thread: 28 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.3s, Number of persistent set computation: 81, Number of trivial persistent sets: 45, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 301, independent: 274, independent conditional: 0, independent unconditional: 274, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 816, independent: 742, independent conditional: 468, independent unconditional: 274, dependent: 74, dependent conditional: 47, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 788, independent: 742, independent conditional: 468, independent unconditional: 274, dependent: 46, dependent conditional: 19, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 788, independent: 742, independent conditional: 468, independent unconditional: 274, dependent: 46, dependent conditional: 19, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 882, independent: 742, independent conditional: 25, independent unconditional: 717, dependent: 140, dependent conditional: 69, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 882, independent: 742, independent conditional: 25, independent unconditional: 717, dependent: 140, dependent conditional: 33, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 882, independent: 742, independent conditional: 25, independent unconditional: 717, dependent: 140, dependent conditional: 33, dependent unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 321, independent: 282, independent conditional: 8, independent unconditional: 274, dependent: 39, dependent conditional: 10, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 321, independent: 269, independent conditional: 0, independent unconditional: 269, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 52, independent: 13, independent conditional: 8, independent unconditional: 5, dependent: 39, dependent conditional: 10, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, independent: 13, independent conditional: 8, independent unconditional: 5, dependent: 39, dependent conditional: 10, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 329, independent: 87, independent conditional: 38, independent unconditional: 49, dependent: 242, dependent conditional: 61, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 882, independent: 460, independent conditional: 17, independent unconditional: 443, dependent: 101, dependent conditional: 23, dependent unconditional: 78, unknown: 321, unknown conditional: 18, unknown unconditional: 303] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 282, Positive conditional cache size: 8, Positive unconditional cache size: 274, Negative cache size: 39, Negative conditional cache size: 10, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 36, Maximal queried relation: 4, Independence queries for same thread: 28 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int multithreaded = 0; [L708] 0 int __unbuffered_cnt = 0; [L709] 0 _Bool main$tmp_guard0; [L710] 0 _Bool main$tmp_guard1; [L712] 0 int x = 0; [L713] 0 _Bool x$flush_delayed; [L714] 0 int x$mem_tmp; [L715] 0 _Bool x$r_buff0_thd0; [L716] 0 _Bool x$r_buff0_thd1; [L717] 0 _Bool x$r_buff0_thd2; [L718] 0 _Bool x$r_buff1_thd0; [L719] 0 _Bool x$r_buff1_thd1; [L720] 0 _Bool x$r_buff1_thd2; [L721] 0 _Bool x$read_delayed; [L722] 0 int *x$read_delayed_var; [L723] 0 int x$w_buff0; [L724] 0 _Bool x$w_buff0_used; [L725] 0 int x$w_buff1; [L726] 0 _Bool x$w_buff1_used; [L728] 0 int y = 0; [L729] 0 _Bool weak$$choice0; [L730] 0 _Bool weak$$choice2; [L790] 0 pthread_t t2475; [L791] 0 //@ ghost multithreaded = 1; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L791] FCALL, FORK 0 pthread_create(&t2475, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L792] 0 pthread_t t2476; VAL [\old(arg)={0:0}, __unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L793] 0 //@ assert (!multithreaded || ((((((((((((((((0LL - (long long) x$r_buff0_thd2) + (long long) x$w_buff0) >= 0LL) && (((0LL - (long long) x$r_buff1_thd2) + (long long) x$w_buff0) >= 0LL)) && (((0LL - (long long) x$r_buff1_thd2) + (long long) x$w_buff1) >= 0LL)) && (((1LL - (long long) x) + (long long) x$r_buff0_thd2) >= 0LL)) && (((1LL - (long long) x) + (long long) x$w_buff0) >= 0LL)) && (((long long) x$r_buff0_thd2 - (long long) x$r_buff1_thd2) >= 0LL)) && (((long long) x$r_buff0_thd2 - (long long) x$w_buff0_used) >= 0LL)) && (((long long) x$r_buff0_thd2 - (long long) x$w_buff1_used) >= 0LL)) && (((long long) x$r_buff1_thd2 - (long long) x$w_buff1_used) >= 0LL)) && (((long long) x$w_buff0 - (long long) x$w_buff0_used) >= 0LL)) && (((long long) x$w_buff0 - (long long) x$w_buff1) >= 0LL)) && (((long long) x$w_buff0 - (long long) x$w_buff1_used) >= 0LL)) && (((long long) x$w_buff0_used - (long long) x$w_buff1_used) >= 0LL)) && (((long long) x$w_buff1 - (long long) x$w_buff1_used) >= 0LL))); [L793] FCALL, FORK 0 pthread_create(&t2476, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L754] 2 x$w_buff1 = x$w_buff0 [L755] 2 x$w_buff0 = 2 [L756] 2 x$w_buff1_used = x$w_buff0_used [L757] 2 x$w_buff0_used = (_Bool)1 [L758] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L758] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L759] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L760] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L761] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L762] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L765] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L794] 0 //@ assert (!multithreaded || ((((((((((((((((0LL - (long long) x$r_buff0_thd2) + (long long) x$w_buff0) >= 0LL) && (((0LL - (long long) x$r_buff1_thd2) + (long long) x$w_buff0) >= 0LL)) && (((0LL - (long long) x$r_buff1_thd2) + (long long) x$w_buff1) >= 0LL)) && (((1LL - (long long) x) + (long long) x$r_buff0_thd2) >= 0LL)) && (((1LL - (long long) x) + (long long) x$w_buff0) >= 0LL)) && (((long long) x$r_buff0_thd2 - (long long) x$r_buff1_thd2) >= 0LL)) && (((long long) x$r_buff0_thd2 - (long long) x$w_buff0_used) >= 0LL)) && (((long long) x$r_buff0_thd2 - (long long) x$w_buff1_used) >= 0LL)) && (((long long) x$r_buff1_thd2 - (long long) x$w_buff1_used) >= 0LL)) && (((long long) x$w_buff0 - (long long) x$w_buff0_used) >= 0LL)) && (((long long) x$w_buff0 - (long long) x$w_buff1) >= 0LL)) && (((long long) x$w_buff0 - (long long) x$w_buff1_used) >= 0LL)) && (((long long) x$w_buff0_used - (long long) x$w_buff1_used) >= 0LL)) && (((long long) x$w_buff1 - (long long) x$w_buff1_used) >= 0LL))); VAL [\old(arg)={0:0}, __unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L734] 1 y = 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L737] 1 x = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L768] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L769] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L770] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L771] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L772] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L777] 2 return 0; [L740] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L741] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L742] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L743] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L744] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\old(arg)={0:0}, __unbuffered_cnt=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L747] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L795] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L797] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L797] RET 0 assume_abort_if_not(main$tmp_guard0) [L799] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L800] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L801] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L802] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L803] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L806] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L807] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L808] 0 x$flush_delayed = weak$$choice2 [L809] 0 x$mem_tmp = x [L810] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L811] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L812] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L813] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L814] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L815] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L816] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] 0 main$tmp_guard1 = !(x == 2 && y == 2) [L818] 0 x = x$flush_delayed ? x$mem_tmp : x [L819] 0 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L821] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L18] 0 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] - UnprovableResult [Line: 793]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 794]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 793]: 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: 791]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 52 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 1.4s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 1083 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-07-22 18:15:50,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-07-22 18:15:50,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE