./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe030_tso.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec 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-wmm/safe030_tso.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe030_tso.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-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:04:48,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:04:48,978 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:04:48,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:04:48,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:04:49,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:04:49,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:04:49,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:04:49,020 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:04:49,020 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:04:49,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:04:49,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:04:49,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:04:49,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:04:49,021 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:04:49,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:04:49,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:04:49,022 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:04:49,022 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:04:49,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:04:49,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:04:49,023 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:04:49,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:04:49,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:04:49,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:04:49,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:04:49,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:04:49,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:04:49,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:04:49,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:04:49,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:04:49,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:04:49,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:04:49,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:04:49,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:04:49,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:04:49,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:04:49,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:04:49,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:04:49,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:04:49,031 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:04:49,032 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:04:49,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:04:49,032 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:04:49,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:04:49,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:04:49,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:04:49,293 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:04:49,293 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:04:49,294 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-02-07 19:04:50,552 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:04:50,830 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:04:50,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-02-07 19:04:50,854 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/602c483bc/1116c7f2a8714dec8e7fdc6c9997852d/FLAG1f7a403a1 [2024-02-07 19:04:50,868 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/602c483bc/1116c7f2a8714dec8e7fdc6c9997852d [2024-02-07 19:04:50,870 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:04:50,871 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:04:50,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/safe030_tso.yml/witness.yml [2024-02-07 19:04:51,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:04:51,028 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:04:51,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:04:51,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:04:51,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:04:51,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:04:50" (1/2) ... [2024-02-07 19:04:51,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285b03f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:04:51, skipping insertion in model container [2024-02-07 19:04:51,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:04:50" (1/2) ... [2024-02-07 19:04:51,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70db1849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:04:51, skipping insertion in model container [2024-02-07 19:04:51,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:04:51" (2/2) ... [2024-02-07 19:04:51,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@285b03f4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51, skipping insertion in model container [2024-02-07 19:04:51,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:04:51" (2/2) ... [2024-02-07 19:04:51,047 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:04:51,147 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:04:51,148 INFO L76 edCorrectnessWitness]: Location invariant before [L759-L759] 0 <= __unbuffered_cnt [2024-02-07 19:04:51,149 INFO L76 edCorrectnessWitness]: Location invariant before [L782-L782] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:04:51,149 INFO L76 edCorrectnessWitness]: Location invariant before [L745-L745] 1 <= __unbuffered_cnt [2024-02-07 19:04:51,149 INFO L76 edCorrectnessWitness]: Location invariant before [L752-L752] y == 2 [2024-02-07 19:04:51,149 INFO L76 edCorrectnessWitness]: Location invariant before [L788-L788] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:04:51,150 INFO L76 edCorrectnessWitness]: Location invariant before [L755-L755] z == 1 [2024-02-07 19:04:51,150 INFO L76 edCorrectnessWitness]: Location invariant before [L783-L783] main$tmp_guard0 == (_Bool)0 || main$tmp_guard0 == (_Bool)1 [2024-02-07 19:04:51,150 INFO L76 edCorrectnessWitness]: Location invariant before [L760-L760] 1 <= __unbuffered_cnt [2024-02-07 19:04:51,150 INFO L76 edCorrectnessWitness]: Location invariant before [L722-L722] z == 2 [2024-02-07 19:04:51,150 INFO L76 edCorrectnessWitness]: Location invariant before [L737-L737] x == 2 [2024-02-07 19:04:51,150 INFO L76 edCorrectnessWitness]: Location invariant before [L740-L740] y == 1 [2024-02-07 19:04:51,151 INFO L76 edCorrectnessWitness]: Location invariant before [L725-L725] x == 1 [2024-02-07 19:04:51,151 INFO L76 edCorrectnessWitness]: Location invariant before [L789-L789] main$tmp_guard1 == (_Bool)0 || main$tmp_guard1 == (_Bool)1 [2024-02-07 19:04:51,151 INFO L76 edCorrectnessWitness]: Location invariant before [L744-L744] 0 <= __unbuffered_cnt [2024-02-07 19:04:51,151 INFO L76 edCorrectnessWitness]: Location invariant before [L781-L781] 0 <= __unbuffered_cnt [2024-02-07 19:04:51,151 INFO L76 edCorrectnessWitness]: Location invariant before [L729-L729] 0 <= __unbuffered_cnt [2024-02-07 19:04:51,151 INFO L76 edCorrectnessWitness]: Location invariant before [L18-L18] ((0 <= expression) && (expression <= 1)) && (expression == 0 || expression == 1) [2024-02-07 19:04:51,151 INFO L76 edCorrectnessWitness]: Location invariant before [L787-L787] (((((0 <= z) && (z <= 2)) && (z <= 127)) && (x == 2)) && (y == 2 || (((0 <= y && y <= 2) && y <= 127) && ((y == 0 || y == 1) || y == 2)))) && ((z == 0 || z == 1) || z == 2) [2024-02-07 19:04:51,152 INFO L76 edCorrectnessWitness]: Location invariant before [L730-L730] 1 <= __unbuffered_cnt [2024-02-07 19:04:51,192 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:04:51,354 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-wmm/safe030_tso.i[945,958] [2024-02-07 19:04:51,505 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:04:51,513 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-07 19:04:51,547 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-wmm/safe030_tso.i[945,958] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:04:51,608 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:04:51,647 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:04:51,649 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51 WrapperNode [2024-02-07 19:04:51,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:04:51,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:04:51,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:04:51,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:04:51,658 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 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,668 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 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,686 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2024-02-07 19:04:51,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:04:51,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:04:51,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:04:51,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:04:51,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,712 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-02-07 19:04:51,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:04:51,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:04:51,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:04:51,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:04:51,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (1/1) ... [2024-02-07 19:04:51,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:04:51,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:04:51,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 19:04:51,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 19:04:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:04:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:04:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:04:51,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:04:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:04:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:04:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:04:51,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:04:51,876 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-02-07 19:04:51,876 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-02-07 19:04:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-02-07 19:04:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-02-07 19:04:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-02-07 19:04:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-02-07 19:04:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:04:51,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:04:51,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:04:51,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:04:51,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:04:51,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:04:51,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:04:51,883 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:04:51,989 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:04:51,992 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:04:52,161 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:04:52,161 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:04:52,322 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:04:52,322 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 19:04:52,322 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:04:52 BoogieIcfgContainer [2024-02-07 19:04:52,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:04:52,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:04:52,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:04:52,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:04:52,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:04:50" (1/4) ... [2024-02-07 19:04:52,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cbdbe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:04:52, skipping insertion in model container [2024-02-07 19:04:52,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:04:51" (2/4) ... [2024-02-07 19:04:52,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cbdbe3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:04:52, skipping insertion in model container [2024-02-07 19:04:52,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:04:51" (3/4) ... [2024-02-07 19:04:52,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cbdbe3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:04:52, skipping insertion in model container [2024-02-07 19:04:52,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:04:52" (4/4) ... [2024-02-07 19:04:52,328 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2024-02-07 19:04:52,342 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:04:52,356 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-02-07 19:04:52,356 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:04:52,407 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 19:04:52,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 128 flow [2024-02-07 19:04:52,526 INFO L124 PetriNetUnfolderBase]: 1/55 cut-off events. [2024-02-07 19:04:52,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:04:52,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 155 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-02-07 19:04:52,545 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 58 transitions, 128 flow [2024-02-07 19:04:52,550 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 55 transitions, 119 flow [2024-02-07 19:04:52,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:04:52,583 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;@7e8df5d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:04:52,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-02-07 19:04:52,602 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:04:52,603 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-02-07 19:04:52,604 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:04:52,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:04:52,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-07 19:04:52,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-07 19:04:52,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:04:52,613 INFO L85 PathProgramCache]: Analyzing trace with hash 8839910, now seen corresponding path program 1 times [2024-02-07 19:04:52,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:04:52,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562384960] [2024-02-07 19:04:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:04:52,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:04:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:04:52,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:04:52,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:04:52,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562384960] [2024-02-07 19:04:52,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562384960] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:04:52,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:04:52,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:04:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546506552] [2024-02-07 19:04:52,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:04:52,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 19:04:52,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:04:52,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 19:04:52,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 19:04:52,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-02-07 19:04:52,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 119 flow. Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:52,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:04:52,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-02-07 19:04:52,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:04:53,851 INFO L124 PetriNetUnfolderBase]: 4775/8401 cut-off events. [2024-02-07 19:04:53,851 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-02-07 19:04:53,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15296 conditions, 8401 events. 4775/8401 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 64006 event pairs, 4775 based on Foata normal form. 216/6649 useless extension candidates. Maximal degree in co-relation 15285. Up to 6805 conditions per place. [2024-02-07 19:04:53,905 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 29 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2024-02-07 19:04:53,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 43 transitions, 153 flow [2024-02-07 19:04:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 19:04:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 19:04:53,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 75 transitions. [2024-02-07 19:04:53,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.646551724137931 [2024-02-07 19:04:53,916 INFO L175 Difference]: Start difference. First operand has 64 places, 55 transitions, 119 flow. Second operand 2 states and 75 transitions. [2024-02-07 19:04:53,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 43 transitions, 153 flow [2024-02-07 19:04:53,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 43 transitions, 150 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 19:04:53,926 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 92 flow [2024-02-07 19:04:53,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2024-02-07 19:04:53,930 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -13 predicate places. [2024-02-07 19:04:53,930 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 92 flow [2024-02-07 19:04:53,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:53,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:04:53,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:04:53,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:04:53,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-07 19:04:53,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:04:53,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1357075520, now seen corresponding path program 1 times [2024-02-07 19:04:53,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:04:53,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800286311] [2024-02-07 19:04:53,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:04:53,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:04:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:04:54,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:04:54,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:04:54,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800286311] [2024-02-07 19:04:54,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800286311] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:04:54,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:04:54,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 19:04:54,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142448951] [2024-02-07 19:04:54,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:04:54,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:04:54,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:04:54,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:04:54,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:04:54,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-02-07 19:04:54,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:54,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:04:54,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-02-07 19:04:54,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:04:54,470 INFO L124 PetriNetUnfolderBase]: 3702/5614 cut-off events. [2024-02-07 19:04:54,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:04:54,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11042 conditions, 5614 events. 3702/5614 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 33079 event pairs, 1242 based on Foata normal form. 0/4652 useless extension candidates. Maximal degree in co-relation 11039. Up to 4681 conditions per place. [2024-02-07 19:04:54,506 INFO L140 encePairwiseOnDemand]: 50/58 looper letters, 45 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2024-02-07 19:04:54,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 234 flow [2024-02-07 19:04:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:04:54,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:04:54,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-02-07 19:04:54,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5977011494252874 [2024-02-07 19:04:54,510 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 92 flow. Second operand 3 states and 104 transitions. [2024-02-07 19:04:54,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 234 flow [2024-02-07 19:04:54,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 63 transitions, 234 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:04:54,513 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 124 flow [2024-02-07 19:04:54,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2024-02-07 19:04:54,514 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -10 predicate places. [2024-02-07 19:04:54,514 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 124 flow [2024-02-07 19:04:54,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:54,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:04:54,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:04:54,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:04:54,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-07 19:04:54,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:04:54,516 INFO L85 PathProgramCache]: Analyzing trace with hash 617684822, now seen corresponding path program 1 times [2024-02-07 19:04:54,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:04:54,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880659785] [2024-02-07 19:04:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:04:54,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:04:54,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:04:54,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:04:54,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:04:54,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880659785] [2024-02-07 19:04:54,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880659785] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:04:54,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:04:54,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:04:54,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641989460] [2024-02-07 19:04:54,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:04:54,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:04:54,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:04:54,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:04:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:04:54,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-02-07 19:04:54,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:54,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:04:54,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-02-07 19:04:54,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:04:55,110 INFO L124 PetriNetUnfolderBase]: 3702/6419 cut-off events. [2024-02-07 19:04:55,111 INFO L125 PetriNetUnfolderBase]: For 705/705 co-relation queries the response was YES. [2024-02-07 19:04:55,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13558 conditions, 6419 events. 3702/6419 cut-off events. For 705/705 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 45979 event pairs, 3446 based on Foata normal form. 0/5281 useless extension candidates. Maximal degree in co-relation 13553. Up to 5355 conditions per place. [2024-02-07 19:04:55,136 INFO L140 encePairwiseOnDemand]: 56/58 looper letters, 31 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2024-02-07 19:04:55,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 45 transitions, 186 flow [2024-02-07 19:04:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:04:55,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:04:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-02-07 19:04:55,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4482758620689655 [2024-02-07 19:04:55,142 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 124 flow. Second operand 3 states and 78 transitions. [2024-02-07 19:04:55,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 45 transitions, 186 flow [2024-02-07 19:04:55,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 45 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:04:55,145 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 120 flow [2024-02-07 19:04:55,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2024-02-07 19:04:55,146 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -10 predicate places. [2024-02-07 19:04:55,147 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 120 flow [2024-02-07 19:04:55,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:55,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:04:55,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:04:55,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:04:55,149 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-07 19:04:55,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:04:55,149 INFO L85 PathProgramCache]: Analyzing trace with hash 889636862, now seen corresponding path program 1 times [2024-02-07 19:04:55,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:04:55,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302167640] [2024-02-07 19:04:55,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:04:55,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:04:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:04:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:04:55,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:04:55,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302167640] [2024-02-07 19:04:55,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302167640] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:04:55,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:04:55,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 19:04:55,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042629009] [2024-02-07 19:04:55,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:04:55,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:04:55,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:04:55,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:04:55,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:04:55,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-02-07 19:04:55,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:55,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:04:55,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-02-07 19:04:55,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:04:55,854 INFO L124 PetriNetUnfolderBase]: 3493/6279 cut-off events. [2024-02-07 19:04:55,854 INFO L125 PetriNetUnfolderBase]: For 588/588 co-relation queries the response was YES. [2024-02-07 19:04:55,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12982 conditions, 6279 events. 3493/6279 cut-off events. For 588/588 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 46311 event pairs, 597 based on Foata normal form. 179/5382 useless extension candidates. Maximal degree in co-relation 12977. Up to 3001 conditions per place. [2024-02-07 19:04:55,879 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 54 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2024-02-07 19:04:55,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 72 transitions, 308 flow [2024-02-07 19:04:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:04:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:04:55,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-02-07 19:04:55,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5387931034482759 [2024-02-07 19:04:55,881 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 120 flow. Second operand 4 states and 125 transitions. [2024-02-07 19:04:55,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 72 transitions, 308 flow [2024-02-07 19:04:55,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 72 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 19:04:55,884 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 145 flow [2024-02-07 19:04:55,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=145, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-02-07 19:04:55,885 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -6 predicate places. [2024-02-07 19:04:55,885 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 145 flow [2024-02-07 19:04:55,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:55,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:04:55,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:04:55,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 19:04:55,887 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-07 19:04:55,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:04:55,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1904200628, now seen corresponding path program 1 times [2024-02-07 19:04:55,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:04:55,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655940106] [2024-02-07 19:04:55,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:04:55,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:04:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:04:55,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:04:55,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:04:55,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655940106] [2024-02-07 19:04:55,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655940106] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:04:55,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:04:55,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:04:55,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309832112] [2024-02-07 19:04:55,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:04:55,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 19:04:55,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:04:55,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 19:04:55,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 19:04:55,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58 [2024-02-07 19:04:55,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:55,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:04:55,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58 [2024-02-07 19:04:55,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:04:56,240 INFO L124 PetriNetUnfolderBase]: 2080/3778 cut-off events. [2024-02-07 19:04:56,240 INFO L125 PetriNetUnfolderBase]: For 1107/1107 co-relation queries the response was YES. [2024-02-07 19:04:56,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8098 conditions, 3778 events. 2080/3778 cut-off events. For 1107/1107 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 25250 event pairs, 864 based on Foata normal form. 98/3570 useless extension candidates. Maximal degree in co-relation 8091. Up to 2834 conditions per place. [2024-02-07 19:04:56,253 INFO L140 encePairwiseOnDemand]: 51/58 looper letters, 35 selfloop transitions, 3 changer transitions 2/53 dead transitions. [2024-02-07 19:04:56,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 53 transitions, 235 flow [2024-02-07 19:04:56,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 19:04:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 19:04:56,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-02-07 19:04:56,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5459770114942529 [2024-02-07 19:04:56,255 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 145 flow. Second operand 3 states and 95 transitions. [2024-02-07 19:04:56,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 53 transitions, 235 flow [2024-02-07 19:04:56,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 229 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 19:04:56,257 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 123 flow [2024-02-07 19:04:56,257 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2024-02-07 19:04:56,258 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -10 predicate places. [2024-02-07 19:04:56,258 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 123 flow [2024-02-07 19:04:56,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:56,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:04:56,259 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:04:56,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 19:04:56,259 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-07 19:04:56,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:04:56,259 INFO L85 PathProgramCache]: Analyzing trace with hash -112562229, now seen corresponding path program 1 times [2024-02-07 19:04:56,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:04:56,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964303092] [2024-02-07 19:04:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:04:56,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:04:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:04:56,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:04:56,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:04:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964303092] [2024-02-07 19:04:56,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964303092] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:04:56,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:04:56,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:04:56,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672907840] [2024-02-07 19:04:56,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:04:56,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 19:04:56,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:04:56,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 19:04:56,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-02-07 19:04:56,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-02-07 19:04:56,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:56,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:04:56,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-02-07 19:04:56,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:04:56,621 INFO L124 PetriNetUnfolderBase]: 1159/2139 cut-off events. [2024-02-07 19:04:56,621 INFO L125 PetriNetUnfolderBase]: For 765/765 co-relation queries the response was YES. [2024-02-07 19:04:56,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4668 conditions, 2139 events. 1159/2139 cut-off events. For 765/765 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 12357 event pairs, 149 based on Foata normal form. 98/2093 useless extension candidates. Maximal degree in co-relation 4661. Up to 641 conditions per place. [2024-02-07 19:04:56,632 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 57 selfloop transitions, 8 changer transitions 1/79 dead transitions. [2024-02-07 19:04:56,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 79 transitions, 353 flow [2024-02-07 19:04:56,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 19:04:56,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 19:04:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-02-07 19:04:56,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5103448275862069 [2024-02-07 19:04:56,636 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 123 flow. Second operand 5 states and 148 transitions. [2024-02-07 19:04:56,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 79 transitions, 353 flow [2024-02-07 19:04:56,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 79 transitions, 337 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-02-07 19:04:56,643 INFO L231 Difference]: Finished difference. Result has 56 places, 43 transitions, 156 flow [2024-02-07 19:04:56,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=156, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2024-02-07 19:04:56,646 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -8 predicate places. [2024-02-07 19:04:56,646 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 156 flow [2024-02-07 19:04:56,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:56,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:04:56,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:04:56,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 19:04:56,647 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-07 19:04:56,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:04:56,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1087114196, now seen corresponding path program 1 times [2024-02-07 19:04:56,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:04:56,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427803978] [2024-02-07 19:04:56,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:04:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:04:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:04:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:04:56,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:04:56,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427803978] [2024-02-07 19:04:56,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427803978] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:04:56,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:04:56,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 19:04:56,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957342352] [2024-02-07 19:04:56,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:04:56,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 19:04:56,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:04:56,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 19:04:56,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-02-07 19:04:56,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 58 [2024-02-07 19:04:56,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:56,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:04:56,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 58 [2024-02-07 19:04:56,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:04:56,952 INFO L124 PetriNetUnfolderBase]: 700/1194 cut-off events. [2024-02-07 19:04:56,952 INFO L125 PetriNetUnfolderBase]: For 872/872 co-relation queries the response was YES. [2024-02-07 19:04:56,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3049 conditions, 1194 events. 700/1194 cut-off events. For 872/872 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5378 event pairs, 128 based on Foata normal form. 44/1202 useless extension candidates. Maximal degree in co-relation 3042. Up to 378 conditions per place. [2024-02-07 19:04:56,958 INFO L140 encePairwiseOnDemand]: 52/58 looper letters, 49 selfloop transitions, 11 changer transitions 1/74 dead transitions. [2024-02-07 19:04:56,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 350 flow [2024-02-07 19:04:56,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-07 19:04:56,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-07 19:04:56,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2024-02-07 19:04:56,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45689655172413796 [2024-02-07 19:04:56,960 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 156 flow. Second operand 6 states and 159 transitions. [2024-02-07 19:04:56,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 350 flow [2024-02-07 19:04:56,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 74 transitions, 325 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-02-07 19:04:56,967 INFO L231 Difference]: Finished difference. Result has 59 places, 43 transitions, 170 flow [2024-02-07 19:04:56,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=59, PETRI_TRANSITIONS=43} [2024-02-07 19:04:56,969 INFO L281 CegarLoopForPetriNet]: 64 programPoint places, -5 predicate places. [2024-02-07 19:04:56,969 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 43 transitions, 170 flow [2024-02-07 19:04:56,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:04:56,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:04:56,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:04:56,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 19:04:56,970 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT, P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 32 more)] === [2024-02-07 19:04:56,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:04:56,971 INFO L85 PathProgramCache]: Analyzing trace with hash -653261779, now seen corresponding path program 1 times [2024-02-07 19:04:56,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:04:56,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707845415] [2024-02-07 19:04:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:04:56,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:04:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:04:56,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 19:04:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 19:04:57,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 19:04:57,029 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 19:04:57,029 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 35 remaining) [2024-02-07 19:04:57,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 35 remaining) [2024-02-07 19:04:57,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 35 remaining) [2024-02-07 19:04:57,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 35 remaining) [2024-02-07 19:04:57,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 35 remaining) [2024-02-07 19:04:57,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 35 remaining) [2024-02-07 19:04:57,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 35 remaining) [2024-02-07 19:04:57,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 35 remaining) [2024-02-07 19:04:57,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 35 remaining) [2024-02-07 19:04:57,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 35 remaining) [2024-02-07 19:04:57,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 35 remaining) [2024-02-07 19:04:57,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 35 remaining) [2024-02-07 19:04:57,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 35 remaining) [2024-02-07 19:04:57,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 35 remaining) [2024-02-07 19:04:57,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 35 remaining) [2024-02-07 19:04:57,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 35 remaining) [2024-02-07 19:04:57,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 35 remaining) [2024-02-07 19:04:57,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 35 remaining) [2024-02-07 19:04:57,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 35 remaining) [2024-02-07 19:04:57,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (15 of 35 remaining) [2024-02-07 19:04:57,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 35 remaining) [2024-02-07 19:04:57,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 35 remaining) [2024-02-07 19:04:57,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 35 remaining) [2024-02-07 19:04:57,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 35 remaining) [2024-02-07 19:04:57,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 35 remaining) [2024-02-07 19:04:57,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 35 remaining) [2024-02-07 19:04:57,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 35 remaining) [2024-02-07 19:04:57,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 35 remaining) [2024-02-07 19:04:57,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 35 remaining) [2024-02-07 19:04:57,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 35 remaining) [2024-02-07 19:04:57,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 35 remaining) [2024-02-07 19:04:57,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 35 remaining) [2024-02-07 19:04:57,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 35 remaining) [2024-02-07 19:04:57,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 35 remaining) [2024-02-07 19:04:57,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 35 remaining) [2024-02-07 19:04:57,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 19:04:57,038 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:04:57,044 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:04:57,044 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:04:57,108 INFO L503 ceAbstractionStarter]: Automizer considered 19 witness invariants [2024-02-07 19:04:57,108 INFO L504 ceAbstractionStarter]: WitnessConsidered=19 [2024-02-07 19:04:57,110 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:04:57 BasicIcfg [2024-02-07 19:04:57,110 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:04:57,110 INFO L158 Benchmark]: Toolchain (without parser) took 6082.45ms. Allocated memory was 161.5MB in the beginning and 843.1MB in the end (delta: 681.6MB). Free memory was 121.7MB in the beginning and 679.5MB in the end (delta: -557.8MB). Peak memory consumption was 365.0MB. Max. memory is 16.1GB. [2024-02-07 19:04:57,111 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:04:57,111 INFO L158 Benchmark]: Witness Parser took 0.47ms. Allocated memory is still 161.5MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:04:57,111 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.09ms. Allocated memory is still 161.5MB. Free memory was 121.7MB in the beginning and 92.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-02-07 19:04:57,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.15ms. Allocated memory is still 161.5MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:04:57,112 INFO L158 Benchmark]: Boogie Preprocessor took 57.52ms. Allocated memory is still 161.5MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:04:57,113 INFO L158 Benchmark]: RCFGBuilder took 577.29ms. Allocated memory is still 161.5MB. Free memory was 88.1MB in the beginning and 102.5MB in the end (delta: -14.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-07 19:04:57,113 INFO L158 Benchmark]: TraceAbstraction took 4786.10ms. Allocated memory was 161.5MB in the beginning and 843.1MB in the end (delta: 681.6MB). Free memory was 101.4MB in the beginning and 679.5MB in the end (delta: -578.0MB). Peak memory consumption was 346.8MB. Max. memory is 16.1GB. [2024-02-07 19:04:57,114 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.47ms. Allocated memory is still 161.5MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.09ms. Allocated memory is still 161.5MB. Free memory was 121.7MB in the beginning and 92.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.15ms. Allocated memory is still 161.5MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.52ms. Allocated memory is still 161.5MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.29ms. Allocated memory is still 161.5MB. Free memory was 88.1MB in the beginning and 102.5MB in the end (delta: -14.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4786.10ms. Allocated memory was 161.5MB in the beginning and 843.1MB in the end (delta: 681.6MB). Free memory was 101.4MB in the beginning and 679.5MB in the end (delta: -578.0MB). Peak memory consumption was 346.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 787]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L710] 0 _Bool main$tmp_guard0; [L711] 0 _Bool main$tmp_guard1; [L713] 0 int x = 0; [L715] 0 int y = 0; [L717] 0 int z = 0; [L774] 0 pthread_t t2507; [L775] FCALL, FORK 0 pthread_create(&t2507, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2507={5:0}, x=0, y=0, z=0] [L721] 1 z = 2 [L722] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[z],IntegerLiteral[2]]]] VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=2] [L776] 0 pthread_t t2508; [L777] FCALL, FORK 0 pthread_create(&t2508, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2507={5:0}, t2508={6:0}, x=0, y=0, z=2] [L736] 2 x = 2 [L737] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[2]]]] VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=2, y=0, z=2] [L724] 1 x = 1 [L725] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[1]]]] VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=0, z=2] [L778] 0 pthread_t t2509; [L779] FCALL, FORK 0 pthread_create(&t2509, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2507={5:0}, t2508={6:0}, t2509={3:0}, x=1, y=0, z=2] [L751] 3 y = 2 [L752] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[2]]]] VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=2, z=2] [L739] 2 y = 1 [L740] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[1]]]] VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=2] [L754] 3 z = 1 [L755] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[z],IntegerLiteral[1]]]] VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=1] [L729] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_cnt]]]] [L729] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L730] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[__unbuffered_cnt]]]] VAL [__unbuffered_cnt=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=1] [L744] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_cnt]]]] [L744] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L745] 2 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[__unbuffered_cnt]]]] VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=1] [L759] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_cnt]]]] [L759] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 3 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[1],IdentifierExpression[__unbuffered_cnt]]]] VAL [__unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, x=1, y=1, z=1] [L781] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[__unbuffered_cnt]]]] [L781] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L782] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[main$tmp_guard0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[main$tmp_guard0],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [__unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2507={5:0}, t2508={6:0}, t2509={3:0}, x=1, y=1, z=1] [L783] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[main$tmp_guard0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[main$tmp_guard0],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] [L783] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L783] RET 0 assume_abort_if_not(main$tmp_guard0) [L787] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[z]],BinaryExpression[COMPLEQ,IdentifierExpression[z],IntegerLiteral[2]]],BinaryExpression[COMPLEQ,IdentifierExpression[z],IntegerLiteral[127]]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[2]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[2]],BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[y]],BinaryExpression[COMPLEQ,IdentifierExpression[y],IntegerLiteral[2]]],BinaryExpression[COMPLEQ,IdentifierExpression[y],IntegerLiteral[127]]],BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[1]]],BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[2]]]]]],BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[z],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[z],IntegerLiteral[1]]],BinaryExpression[COMPEQ,IdentifierExpression[z],IntegerLiteral[2]]]]]] VAL [__unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2507={5:0}, t2508={6:0}, t2509={3:0}, x=1, y=1, z=1] - UnprovableResult [Line: 722]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 730]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 745]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 755]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 759]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 760]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 782]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 783]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 779]: 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: 775]: 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: 777]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 94 locations, 35 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: 4.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 262 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 409 IncrementalHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 4 mSDtfsCounter, 409 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=7, InterpolantAutomatonStates: 26, 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, 0.6s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-02-07 19:04:57,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE