./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-atomic/dekker.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/dekker.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 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/pthread-atomic/dekker.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/dekker.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-?-80b1b13-m [2024-01-31 16:41:01,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:41:01,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:41:01,110 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:41:01,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:41:01,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:41:01,134 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:41:01,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:41:01,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:41:01,136 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:41:01,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:41:01,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:41:01,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:41:01,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:41:01,137 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:41:01,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:41:01,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:41:01,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:41:01,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:41:01,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:41:01,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:41:01,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:41:01,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:41:01,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:41:01,141 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:41:01,141 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:41:01,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:41:01,142 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:41:01,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:41:01,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:41:01,143 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:41:01,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:41:01,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:41:01,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:41:01,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:41:01,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:41:01,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:41:01,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:41:01,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:41:01,145 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:41:01,145 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:41:01,145 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:41:01,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:41:01,145 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:41:01,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:41:01,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:41:01,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:41:01,363 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:41:01,364 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:41:01,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2024-01-31 16:41:02,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:41:02,626 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:41:02,627 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2024-01-31 16:41:02,637 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a616f3444/cf6fd2b97d7f4007886c0bbceb95011f/FLAG5361bb5da [2024-01-31 16:41:02,647 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a616f3444/cf6fd2b97d7f4007886c0bbceb95011f [2024-01-31 16:41:02,649 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:41:02,654 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:41:02,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/dekker.yml/witness.yml [2024-01-31 16:41:02,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:41:02,872 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:41:02,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:41:02,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:41:02,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:41:02,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:41:02" (1/2) ... [2024-01-31 16:41:02,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1d48ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:41:02, skipping insertion in model container [2024-01-31 16:41:02,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:41:02" (1/2) ... [2024-01-31 16:41:02,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f7b299e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:41:02, skipping insertion in model container [2024-01-31 16:41:02,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:41:02" (2/2) ... [2024-01-31 16:41:02,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1d48ec and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:02, skipping insertion in model container [2024-01-31 16:41:02,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:41:02" (2/2) ... [2024-01-31 16:41:02,881 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:41:03,364 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:41:03,366 INFO L98 nessWitnessExtractor]: Location invariant after [L757-L757] ((((((((((((0 <= flag1) && (0 <= flag2)) && (0 <= turn)) && (flag1 <= 1)) && (flag2 <= 1)) && (turn <= 1)) && ((2147483647LL + (long long )f1) + (long long )t >= 0LL)) && ((2147483646LL + (long long )f1) - (long long )t >= 0LL)) && (f1 == 1)) && ((unsigned long )_ == 0UL)) && (flag1 == 0 || flag1 == 1)) && (flag2 == 0 || flag2 == 1)) && (turn == 0 || turn == 1) [2024-01-31 16:41:03,366 INFO L98 nessWitnessExtractor]: Location invariant after [L712-L712] (((((((((((((0 <= flag1) && (0 <= flag2)) && (0 <= turn)) && (flag1 <= 1)) && (flag2 <= 1)) && (turn <= 1)) && ((4294967296LL + (long long )f2) + (long long )t >= 0LL)) && ((4294967295LL - (long long )f2) + (long long )t >= 0LL)) && ((4294967295LL + (long long )f2) - (long long )t >= 0LL)) && ((4294967294LL - (long long )f2) - (long long )t >= 0LL)) && ((unsigned long )_ == 0UL)) && (flag1 == 0 || flag1 == 1)) && (flag2 == 0 || flag2 == 1)) && (turn == 0 || turn == 1) [2024-01-31 16:41:03,366 INFO L98 nessWitnessExtractor]: Location invariant after [L716-L716] ((((((((((((0 <= flag1) && (0 <= flag2)) && (0 <= turn)) && (flag1 <= 1)) && (flag2 <= 1)) && (turn <= 1)) && ((2147483647LL + (long long )f2) + (long long )t >= 0LL)) && ((2147483646LL + (long long )f2) - (long long )t >= 0LL)) && (f2 == 1)) && ((unsigned long )_ == 0UL)) && (flag1 == 0 || flag1 == 1)) && (flag2 == 0 || flag2 == 1)) && (turn == 0 || turn == 1) [2024-01-31 16:41:03,366 INFO L98 nessWitnessExtractor]: Location invariant after [L753-L753] (((((((((((((0 <= flag1) && (0 <= flag2)) && (0 <= turn)) && (flag1 <= 1)) && (flag2 <= 1)) && (turn <= 1)) && ((4294967296LL + (long long )f1) + (long long )t >= 0LL)) && ((4294967295LL - (long long )f1) + (long long )t >= 0LL)) && ((4294967295LL + (long long )f1) - (long long )t >= 0LL)) && ((4294967294LL - (long long )f1) - (long long )t >= 0LL)) && ((unsigned long )_ == 0UL)) && (flag1 == 0 || flag1 == 1)) && (flag2 == 0 || flag2 == 1)) && (turn == 0 || turn == 1) [2024-01-31 16:41:03,407 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:41:03,700 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[31403,31416] [2024-01-31 16:41:03,709 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[32483,32496] [2024-01-31 16:41:03,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:41:03,726 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:41:03,753 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 16:41:03,753 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 16:41:03,754 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[31403,31416] [2024-01-31 16:41:03,766 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 16:41:03,768 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 16:41:03,769 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i[32483,32496] [2024-01-31 16:41:03,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:41:03,805 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:41:03,806 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03 WrapperNode [2024-01-31 16:41:03,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:41:03,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:41:03,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:41:03,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:41:03,819 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 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,839 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 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,858 INFO L138 Inliner]: procedures = 171, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2024-01-31 16:41:03,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:41:03,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:41:03,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:41:03,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:41:03,868 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,900 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-31 16:41:03,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,914 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:41:03,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:41:03,940 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:41:03,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:41:03,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (1/1) ... [2024-01-31 16:41:03,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:41:03,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:41:03,969 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) [2024-01-31 16:41:03,988 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 [2024-01-31 16:41:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 16:41:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 16:41:04,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 16:41:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-01-31 16:41:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-01-31 16:41:04,002 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-31 16:41:04,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-31 16:41:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:41:04,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:41:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:41:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:41:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:41:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:41:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:41:04,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:41:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:41:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:41:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:41:04,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:41:04,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:41:04,006 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:41:04,123 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:41:04,125 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:41:04,259 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:41:04,259 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:41:04,359 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:41:04,361 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-31 16:41:04,362 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:41:04 BoogieIcfgContainer [2024-01-31 16:41:04,362 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:41:04,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:41:04,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:41:04,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:41:04,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:41:02" (1/4) ... [2024-01-31 16:41:04,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ebbe31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:41:04, skipping insertion in model container [2024-01-31 16:41:04,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:41:02" (2/4) ... [2024-01-31 16:41:04,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ebbe31 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:41:04, skipping insertion in model container [2024-01-31 16:41:04,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:41:03" (3/4) ... [2024-01-31 16:41:04,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ebbe31 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:41:04, skipping insertion in model container [2024-01-31 16:41:04,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:41:04" (4/4) ... [2024-01-31 16:41:04,371 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker.i [2024-01-31 16:41:04,384 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:41:04,384 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-31 16:41:04,385 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:41:04,436 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-31 16:41:04,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 57 transitions, 128 flow [2024-01-31 16:41:04,505 INFO L124 PetriNetUnfolderBase]: 8/55 cut-off events. [2024-01-31 16:41:04,505 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 16:41:04,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 55 events. 8/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2024-01-31 16:41:04,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 57 transitions, 128 flow [2024-01-31 16:41:04,518 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 53 transitions, 115 flow [2024-01-31 16:41:04,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:41:04,539 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;@434bcdf8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:41:04,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-01-31 16:41:04,549 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:41:04,549 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2024-01-31 16:41:04,549 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:41:04,550 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:41:04,550 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:41:04,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-01-31 16:41:04,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:41:04,555 INFO L85 PathProgramCache]: Analyzing trace with hash -132943270, now seen corresponding path program 1 times [2024-01-31 16:41:04,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:41:04,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740168901] [2024-01-31 16:41:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:41:04,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:41:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:41:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:41:04,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:41:04,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740168901] [2024-01-31 16:41:04,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740168901] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:41:04,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:41:04,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:41:04,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744422515] [2024-01-31 16:41:04,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:41:04,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:41:04,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:41:04,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:41:04,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:41:04,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 57 [2024-01-31 16:41:04,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 53 transitions, 115 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-01-31 16:41:04,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:41:04,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 57 [2024-01-31 16:41:04,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:41:05,080 INFO L124 PetriNetUnfolderBase]: 101/311 cut-off events. [2024-01-31 16:41:05,082 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-31 16:41:05,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 311 events. 101/311 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1756 event pairs, 35 based on Foata normal form. 42/312 useless extension candidates. Maximal degree in co-relation 420. Up to 86 conditions per place. [2024-01-31 16:41:05,088 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 18 selfloop transitions, 3 changer transitions 1/58 dead transitions. [2024-01-31 16:41:05,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 172 flow [2024-01-31 16:41:05,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:41:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:41:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-01-31 16:41:05,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8245614035087719 [2024-01-31 16:41:05,105 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 115 flow. Second operand 3 states and 141 transitions. [2024-01-31 16:41:05,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 172 flow [2024-01-31 16:41:05,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 165 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-31 16:41:05,112 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 126 flow [2024-01-31 16:41:05,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2024-01-31 16:41:05,117 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2024-01-31 16:41:05,128 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 126 flow [2024-01-31 16:41:05,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2024-01-31 16:41:05,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:41:05,128 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:41:05,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:41:05,129 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-01-31 16:41:05,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:41:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash -895869348, now seen corresponding path program 1 times [2024-01-31 16:41:05,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:41:05,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515423069] [2024-01-31 16:41:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:41:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:41:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:41:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:41:05,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:41:05,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515423069] [2024-01-31 16:41:05,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515423069] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:41:05,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:41:05,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:41:05,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466551853] [2024-01-31 16:41:05,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:41:05,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:41:05,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:41:05,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:41:05,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:41:05,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 57 [2024-01-31 16:41:05,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2024-01-31 16:41:05,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:41:05,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 57 [2024-01-31 16:41:05,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:41:05,324 INFO L124 PetriNetUnfolderBase]: 107/346 cut-off events. [2024-01-31 16:41:05,324 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-01-31 16:41:05,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 346 events. 107/346 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1885 event pairs, 49 based on Foata normal form. 16/329 useless extension candidates. Maximal degree in co-relation 317. Up to 127 conditions per place. [2024-01-31 16:41:05,330 INFO L140 encePairwiseOnDemand]: 53/57 looper letters, 16 selfloop transitions, 2 changer transitions 4/58 dead transitions. [2024-01-31 16:41:05,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 183 flow [2024-01-31 16:41:05,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:41:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:41:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions. [2024-01-31 16:41:05,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8070175438596491 [2024-01-31 16:41:05,345 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 126 flow. Second operand 3 states and 138 transitions. [2024-01-31 16:41:05,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 183 flow [2024-01-31 16:41:05,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 58 transitions, 177 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:41:05,349 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 130 flow [2024-01-31 16:41:05,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2024-01-31 16:41:05,350 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-01-31 16:41:05,350 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 130 flow [2024-01-31 16:41:05,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2024-01-31 16:41:05,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:41:05,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:41:05,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:41:05,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-01-31 16:41:05,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:41:05,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1189588865, now seen corresponding path program 1 times [2024-01-31 16:41:05,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:41:05,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764316714] [2024-01-31 16:41:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:41:05,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:41:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:41:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:41:05,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:41:05,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764316714] [2024-01-31 16:41:05,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764316714] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:41:05,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:41:05,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:41:05,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328362531] [2024-01-31 16:41:05,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:41:05,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:41:05,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:41:05,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:41:05,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:41:05,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 57 [2024-01-31 16:41:05,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-01-31 16:41:05,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:41:05,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 57 [2024-01-31 16:41:05,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:41:05,623 INFO L124 PetriNetUnfolderBase]: 287/754 cut-off events. [2024-01-31 16:41:05,623 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-01-31 16:41:05,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 754 events. 287/754 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4811 event pairs, 77 based on Foata normal form. 16/707 useless extension candidates. Maximal degree in co-relation 959. Up to 225 conditions per place. [2024-01-31 16:41:05,628 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 29 selfloop transitions, 9 changer transitions 4/74 dead transitions. [2024-01-31 16:41:05,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 74 transitions, 268 flow [2024-01-31 16:41:05,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 16:41:05,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 16:41:05,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 213 transitions. [2024-01-31 16:41:05,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7473684210526316 [2024-01-31 16:41:05,631 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 130 flow. Second operand 5 states and 213 transitions. [2024-01-31 16:41:05,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 74 transitions, 268 flow [2024-01-31 16:41:05,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 74 transitions, 265 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:41:05,635 INFO L231 Difference]: Finished difference. Result has 60 places, 57 transitions, 179 flow [2024-01-31 16:41:05,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=60, PETRI_TRANSITIONS=57} [2024-01-31 16:41:05,637 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2024-01-31 16:41:05,637 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 57 transitions, 179 flow [2024-01-31 16:41:05,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-01-31 16:41:05,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:41:05,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:41:05,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:41:05,639 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-01-31 16:41:05,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:41:05,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1500189543, now seen corresponding path program 2 times [2024-01-31 16:41:05,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:41:05,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951534149] [2024-01-31 16:41:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:41:05,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:41:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:41:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:41:05,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:41:05,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951534149] [2024-01-31 16:41:05,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951534149] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:41:05,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:41:05,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:41:05,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55630194] [2024-01-31 16:41:05,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:41:05,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:41:05,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:41:05,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:41:05,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:41:05,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 57 [2024-01-31 16:41:05,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-01-31 16:41:05,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:41:05,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 57 [2024-01-31 16:41:05,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:41:05,919 INFO L124 PetriNetUnfolderBase]: 430/1046 cut-off events. [2024-01-31 16:41:05,920 INFO L125 PetriNetUnfolderBase]: For 359/363 co-relation queries the response was YES. [2024-01-31 16:41:05,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1988 conditions, 1046 events. 430/1046 cut-off events. For 359/363 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7346 event pairs, 133 based on Foata normal form. 30/1014 useless extension candidates. Maximal degree in co-relation 1260. Up to 271 conditions per place. [2024-01-31 16:41:05,924 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-01-31 16:41:05,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 73 transitions, 298 flow [2024-01-31 16:41:05,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 16:41:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 16:41:05,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-01-31 16:41:05,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7403508771929824 [2024-01-31 16:41:05,925 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 179 flow. Second operand 5 states and 211 transitions. [2024-01-31 16:41:05,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 73 transitions, 298 flow [2024-01-31 16:41:05,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 73 transitions, 294 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-01-31 16:41:05,928 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-01-31 16:41:05,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-01-31 16:41:05,929 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2024-01-31 16:41:05,929 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-01-31 16:41:05,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-01-31 16:41:05,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-01-31 16:41:05,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-01-31 16:41:05,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-01-31 16:41:05,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-01-31 16:41:05,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-01-31 16:41:05,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-01-31 16:41:05,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:41:05,934 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-01-31 16:41:05,938 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:41:05,938 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:41:05,942 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:41:05 BasicIcfg [2024-01-31 16:41:05,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:41:05,943 INFO L158 Benchmark]: Toolchain (without parser) took 3071.12ms. Allocated memory was 197.1MB in the beginning and 274.7MB in the end (delta: 77.6MB). Free memory was 154.5MB in the beginning and 215.0MB in the end (delta: -60.5MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2024-01-31 16:41:05,943 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:41:05,944 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 197.1MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:41:05,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 933.48ms. Allocated memory is still 197.1MB. Free memory was 154.5MB in the beginning and 159.7MB in the end (delta: -5.2MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2024-01-31 16:41:05,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.35ms. Allocated memory is still 197.1MB. Free memory was 159.7MB in the beginning and 157.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:41:05,944 INFO L158 Benchmark]: Boogie Preprocessor took 80.70ms. Allocated memory is still 197.1MB. Free memory was 157.6MB in the beginning and 155.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:41:05,945 INFO L158 Benchmark]: RCFGBuilder took 421.72ms. Allocated memory is still 197.1MB. Free memory was 155.5MB in the beginning and 132.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-31 16:41:05,945 INFO L158 Benchmark]: TraceAbstraction took 1578.37ms. Allocated memory was 197.1MB in the beginning and 274.7MB in the end (delta: 77.6MB). Free memory was 131.4MB in the beginning and 215.0MB in the end (delta: -83.6MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2024-01-31 16:41:05,946 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 197.1MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 933.48ms. Allocated memory is still 197.1MB. Free memory was 154.5MB in the beginning and 159.7MB in the end (delta: -5.2MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.35ms. Allocated memory is still 197.1MB. Free memory was 159.7MB in the beginning and 157.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.70ms. Allocated memory is still 197.1MB. Free memory was 157.6MB in the beginning and 155.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.72ms. Allocated memory is still 197.1MB. Free memory was 155.5MB in the beginning and 132.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1578.37ms. Allocated memory was 197.1MB in the beginning and 274.7MB in the end (delta: 77.6MB). Free memory was 131.4MB in the beginning and 215.0MB in the end (delta: -83.6MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 739]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 92 locations, 6 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: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 26 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 16:41:05,981 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 Result: TRUE