./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_17-traces-rpb-litmus_unknown_1_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_17-traces-rpb-litmus_unknown_1_neg.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:54:57,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:54:57,940 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:54:57,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:54:57,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:54:57,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:54:57,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:54:57,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:54:57,971 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:54:57,974 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:54:57,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:54:57,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:54:57,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:54:57,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:54:57,977 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:54:57,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:54:57,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:54:57,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:54:57,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:54:57,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:54:57,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:54:57,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:54:57,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:54:57,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:54:57,980 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:54:57,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:54:57,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:54:57,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:54:57,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:54:57,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:54:57,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:54:57,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:54:57,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:54:57,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:54:57,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:54:57,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:54:57,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:54:57,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:54:57,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:54:57,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:54:57,984 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:54:57,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:54:57,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:54:57,985 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:54:58,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:54:58,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:54:58,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:54:58,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:54:58,220 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:54:58,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2024-02-07 14:54:59,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:54:59,657 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:54:59,660 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2024-02-07 14:54:59,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5a4ebf3b/90abf40b28ec40c5b5046d4ad229412f/FLAG5f8df4689 [2024-02-07 14:54:59,690 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5a4ebf3b/90abf40b28ec40c5b5046d4ad229412f [2024-02-07 14:54:59,692 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:54:59,693 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:54:59,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_17-traces-rpb-litmus_unknown_1_neg.yml/witness.yml [2024-02-07 14:54:59,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:54:59,773 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:54:59,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:54:59,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:54:59,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:54:59,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:54:59" (1/2) ... [2024-02-07 14:54:59,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123169ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:54:59, skipping insertion in model container [2024-02-07 14:54:59,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:54:59" (1/2) ... [2024-02-07 14:54:59,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7f9ead68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:54:59, skipping insertion in model container [2024-02-07 14:54:59,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:54:59" (2/2) ... [2024-02-07 14:54:59,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123169ab and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:54:59, skipping insertion in model container [2024-02-07 14:54:59,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:54:59" (2/2) ... [2024-02-07 14:54:59,782 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:54:59,817 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:54:59,818 INFO L76 edCorrectnessWitness]: Location invariant before [L689-L689] g == 42 [2024-02-07 14:54:59,818 INFO L76 edCorrectnessWitness]: Location invariant before [L703-L703] r != 0 [2024-02-07 14:54:59,818 INFO L76 edCorrectnessWitness]: Location invariant before [L702-L702] g == 17 [2024-02-07 14:54:59,819 INFO L76 edCorrectnessWitness]: Location invariant before [L706-L706] ((((((0 <= t) && (17 <= t)) && (t <= 42)) && (t <= 127)) && (t % 25 == 17)) && (t != 0)) && (t == 17 || t == 42) [2024-02-07 14:54:59,819 INFO L76 edCorrectnessWitness]: Location invariant before [L705-L705] ((((((0 <= g) && (17 <= g)) && (g <= 42)) && (g <= 127)) && (g % 25 == 17)) && (g != 0)) && (g == 17 || g == 42) [2024-02-07 14:54:59,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:55:00,059 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] [2024-02-07 14:55:00,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:55:00,214 INFO L203 MainTranslator]: Completed pre-run [2024-02-07 14:55:00,224 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i[1098,1111] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:55:00,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:55:00,311 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:55:00,311 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:00 WrapperNode [2024-02-07 14:55:00,311 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:55:00,312 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:55:00,312 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:55:00,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:55:00,318 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,328 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,353 INFO L138 Inliner]: procedures = 164, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-02-07 14:55:00,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:55:00,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:55:00,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:55:00,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:55:00,362 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,363 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,375 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,390 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 1, 5, 5]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 5, 5]. The 1 writes are split as follows [0, 1, 0, 0]. [2024-02-07 14:55:00,391 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,392 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,401 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,403 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,407 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,411 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:55:00,417 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:55:00,417 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:55:00,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:55:00,418 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 02:55:00" (1/1) ... [2024-02-07 14:55:00,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:55:00,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:55:00,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:55:00,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:55:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:55:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:55:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:55:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:55:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 14:55:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:55:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:55:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 14:55:00,533 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 14:55:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:55:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:55:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:55:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:55:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:55:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 14:55:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:55:00,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:55:00,536 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:55:00,665 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:55:00,667 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:55:00,832 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:55:00,832 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:55:00,904 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:55:00,905 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:55:00,905 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:55:00 BoogieIcfgContainer [2024-02-07 14:55:00,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:55:00,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:55:00,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:55:00,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:55:00,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:54:59" (1/4) ... [2024-02-07 14:55:00,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfffcae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:55:00, skipping insertion in model container [2024-02-07 14:55:00,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:54:59" (2/4) ... [2024-02-07 14:55:00,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfffcae and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:55:00, skipping insertion in model container [2024-02-07 14:55:00,910 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 02:55:00" (3/4) ... [2024-02-07 14:55:00,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfffcae and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:55:00, skipping insertion in model container [2024-02-07 14:55:00,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:55:00" (4/4) ... [2024-02-07 14:55:00,912 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2024-02-07 14:55:00,924 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:55:00,924 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-02-07 14:55:00,925 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:55:00,946 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:55:00,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 88 flow [2024-02-07 14:55:00,987 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-02-07 14:55:00,988 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:00,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 83 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-02-07 14:55:00,990 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 88 flow [2024-02-07 14:55:00,992 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 41 transitions, 85 flow [2024-02-07 14:55:00,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:55:01,003 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;@57243b33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:55:01,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-02-07 14:55:01,008 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:55:01,008 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-02-07 14:55:01,008 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:01,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:01,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:01,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:01,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:01,015 INFO L85 PathProgramCache]: Analyzing trace with hash 294152914, now seen corresponding path program 1 times [2024-02-07 14:55:01,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:01,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335893824] [2024-02-07 14:55:01,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:01,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:01,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:01,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:01,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335893824] [2024-02-07 14:55:01,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335893824] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:01,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:01,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:55:01,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145758161] [2024-02-07 14:55:01,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:01,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:55:01,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:01,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:55:01,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:55:01,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 42 [2024-02-07 14:55:01,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 85 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 14:55:01,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:01,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 42 [2024-02-07 14:55:01,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:01,451 INFO L124 PetriNetUnfolderBase]: 160/502 cut-off events. [2024-02-07 14:55:01,452 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:01,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 502 events. 160/502 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2856 event pairs, 73 based on Foata normal form. 22/473 useless extension candidates. Maximal degree in co-relation 863. Up to 201 conditions per place. [2024-02-07 14:55:01,456 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 31 selfloop transitions, 4 changer transitions 4/55 dead transitions. [2024-02-07 14:55:01,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 191 flow [2024-02-07 14:55:01,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:55:01,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:55:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-02-07 14:55:01,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.753968253968254 [2024-02-07 14:55:01,467 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 85 flow. Second operand 3 states and 95 transitions. [2024-02-07 14:55:01,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 191 flow [2024-02-07 14:55:01,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:55:01,471 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 112 flow [2024-02-07 14:55:01,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2024-02-07 14:55:01,475 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-02-07 14:55:01,475 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 112 flow [2024-02-07 14:55:01,476 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 14:55:01,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:01,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:01,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:55:01,476 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:01,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:01,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1006231563, now seen corresponding path program 1 times [2024-02-07 14:55:01,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:01,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810713032] [2024-02-07 14:55:01,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:01,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:01,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:01,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:01,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810713032] [2024-02-07 14:55:01,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810713032] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:01,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:01,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:55:01,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990734048] [2024-02-07 14:55:01,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:01,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:55:01,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:01,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:55:01,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:55:01,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 42 [2024-02-07 14:55:01,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:01,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:01,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 42 [2024-02-07 14:55:01,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:01,615 INFO L124 PetriNetUnfolderBase]: 139/451 cut-off events. [2024-02-07 14:55:01,615 INFO L125 PetriNetUnfolderBase]: For 102/110 co-relation queries the response was YES. [2024-02-07 14:55:01,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 451 events. 139/451 cut-off events. For 102/110 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2521 event pairs, 68 based on Foata normal form. 27/450 useless extension candidates. Maximal degree in co-relation 844. Up to 195 conditions per place. [2024-02-07 14:55:01,618 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 31 selfloop transitions, 2 changer transitions 4/53 dead transitions. [2024-02-07 14:55:01,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 53 transitions, 202 flow [2024-02-07 14:55:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:55:01,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:55:01,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-02-07 14:55:01,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-02-07 14:55:01,619 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 112 flow. Second operand 3 states and 91 transitions. [2024-02-07 14:55:01,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 53 transitions, 202 flow [2024-02-07 14:55:01,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:55:01,622 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 104 flow [2024-02-07 14:55:01,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2024-02-07 14:55:01,623 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-02-07 14:55:01,623 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 104 flow [2024-02-07 14:55:01,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:01,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:01,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:01,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:55:01,624 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:01,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:01,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1128406772, now seen corresponding path program 1 times [2024-02-07 14:55:01,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:01,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138238362] [2024-02-07 14:55:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:01,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:01,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138238362] [2024-02-07 14:55:01,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138238362] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:01,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:01,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:55:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191098024] [2024-02-07 14:55:01,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:01,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:55:01,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:01,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:55:01,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:55:01,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-02-07 14:55:01,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:01,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:01,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-02-07 14:55:01,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:01,966 INFO L124 PetriNetUnfolderBase]: 174/531 cut-off events. [2024-02-07 14:55:01,967 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-02-07 14:55:01,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 531 events. 174/531 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3046 event pairs, 38 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 1031. Up to 165 conditions per place. [2024-02-07 14:55:01,969 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 39 selfloop transitions, 4 changer transitions 8/66 dead transitions. [2024-02-07 14:55:01,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 66 transitions, 262 flow [2024-02-07 14:55:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:55:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:55:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-02-07 14:55:01,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-02-07 14:55:01,971 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 104 flow. Second operand 4 states and 116 transitions. [2024-02-07 14:55:01,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 66 transitions, 262 flow [2024-02-07 14:55:01,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 66 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:55:01,989 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 123 flow [2024-02-07 14:55:01,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2024-02-07 14:55:01,990 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 7 predicate places. [2024-02-07 14:55:01,990 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 123 flow [2024-02-07 14:55:01,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:01,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:01,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:01,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:55:01,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:01,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:01,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2067156928, now seen corresponding path program 1 times [2024-02-07 14:55:01,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:01,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031564224] [2024-02-07 14:55:01,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:01,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:02,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:02,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031564224] [2024-02-07 14:55:02,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031564224] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:02,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:02,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:55:02,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505562485] [2024-02-07 14:55:02,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:02,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 14:55:02,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:02,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 14:55:02,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-02-07 14:55:02,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 42 [2024-02-07 14:55:02,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 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 14:55:02,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:02,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 42 [2024-02-07 14:55:02,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:02,190 INFO L124 PetriNetUnfolderBase]: 174/504 cut-off events. [2024-02-07 14:55:02,191 INFO L125 PetriNetUnfolderBase]: For 214/216 co-relation queries the response was YES. [2024-02-07 14:55:02,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 504 events. 174/504 cut-off events. For 214/216 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2753 event pairs, 22 based on Foata normal form. 2/481 useless extension candidates. Maximal degree in co-relation 1078. Up to 149 conditions per place. [2024-02-07 14:55:02,193 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 28 selfloop transitions, 5 changer transitions 36/84 dead transitions. [2024-02-07 14:55:02,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 366 flow [2024-02-07 14:55:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-02-07 14:55:02,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-02-07 14:55:02,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 189 transitions. [2024-02-07 14:55:02,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-02-07 14:55:02,195 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 123 flow. Second operand 7 states and 189 transitions. [2024-02-07 14:55:02,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 366 flow [2024-02-07 14:55:02,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 84 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:55:02,197 INFO L231 Difference]: Finished difference. Result has 57 places, 40 transitions, 128 flow [2024-02-07 14:55:02,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=128, PETRI_PLACES=57, PETRI_TRANSITIONS=40} [2024-02-07 14:55:02,198 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2024-02-07 14:55:02,198 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 40 transitions, 128 flow [2024-02-07 14:55:02,198 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 14:55:02,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:02,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:02,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 14:55:02,199 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:02,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:02,199 INFO L85 PathProgramCache]: Analyzing trace with hash 2067988173, now seen corresponding path program 1 times [2024-02-07 14:55:02,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:02,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441823403] [2024-02-07 14:55:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:02,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:02,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:02,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441823403] [2024-02-07 14:55:02,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441823403] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:02,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:02,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:55:02,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765673032] [2024-02-07 14:55:02,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:02,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:55:02,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:02,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:55:02,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:55:02,225 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-02-07 14:55:02,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 40 transitions, 128 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 14:55:02,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:02,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-02-07 14:55:02,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:02,272 INFO L124 PetriNetUnfolderBase]: 103/375 cut-off events. [2024-02-07 14:55:02,273 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-02-07 14:55:02,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 375 events. 103/375 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1952 event pairs, 54 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 804. Up to 181 conditions per place. [2024-02-07 14:55:02,274 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 25 selfloop transitions, 2 changer transitions 2/45 dead transitions. [2024-02-07 14:55:02,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 45 transitions, 204 flow [2024-02-07 14:55:02,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:55:02,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:55:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-02-07 14:55:02,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6587301587301587 [2024-02-07 14:55:02,276 INFO L175 Difference]: Start difference. First operand has 57 places, 40 transitions, 128 flow. Second operand 3 states and 83 transitions. [2024-02-07 14:55:02,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 45 transitions, 204 flow [2024-02-07 14:55:02,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 186 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-02-07 14:55:02,278 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 112 flow [2024-02-07 14:55:02,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-02-07 14:55:02,278 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-02-07 14:55:02,278 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 112 flow [2024-02-07 14:55:02,279 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 14:55:02,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:02,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:02,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 14:55:02,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:02,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:02,280 INFO L85 PathProgramCache]: Analyzing trace with hash 459718736, now seen corresponding path program 1 times [2024-02-07 14:55:02,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:02,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970444980] [2024-02-07 14:55:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:02,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:02,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:02,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:02,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970444980] [2024-02-07 14:55:02,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970444980] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:02,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:02,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:55:02,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883009359] [2024-02-07 14:55:02,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:02,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:55:02,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:02,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:55:02,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:55:02,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 42 [2024-02-07 14:55:02,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 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 14:55:02,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:02,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 42 [2024-02-07 14:55:02,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:02,382 INFO L124 PetriNetUnfolderBase]: 23/129 cut-off events. [2024-02-07 14:55:02,382 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-02-07 14:55:02,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 129 events. 23/129 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 315 event pairs, 6 based on Foata normal form. 13/141 useless extension candidates. Maximal degree in co-relation 251. Up to 60 conditions per place. [2024-02-07 14:55:02,383 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 14 selfloop transitions, 4 changer transitions 7/39 dead transitions. [2024-02-07 14:55:02,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 39 transitions, 160 flow [2024-02-07 14:55:02,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:55:02,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:55:02,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2024-02-07 14:55:02,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6488095238095238 [2024-02-07 14:55:02,384 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 112 flow. Second operand 4 states and 109 transitions. [2024-02-07 14:55:02,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 39 transitions, 160 flow [2024-02-07 14:55:02,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 39 transitions, 146 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-02-07 14:55:02,385 INFO L231 Difference]: Finished difference. Result has 46 places, 30 transitions, 82 flow [2024-02-07 14:55:02,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=30} [2024-02-07 14:55:02,409 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-02-07 14:55:02,409 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 30 transitions, 82 flow [2024-02-07 14:55:02,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 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 14:55:02,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:02,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:02,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 14:55:02,410 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:02,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:02,411 INFO L85 PathProgramCache]: Analyzing trace with hash 290171159, now seen corresponding path program 1 times [2024-02-07 14:55:02,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:02,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722448842] [2024-02-07 14:55:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:02,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:02,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:02,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722448842] [2024-02-07 14:55:02,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722448842] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:02,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:02,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:55:02,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036911520] [2024-02-07 14:55:02,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:02,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:55:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:55:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:55:02,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-02-07 14:55:02,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 30 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:02,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:02,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-02-07 14:55:02,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:02,543 INFO L124 PetriNetUnfolderBase]: 15/82 cut-off events. [2024-02-07 14:55:02,543 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-02-07 14:55:02,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 82 events. 15/82 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 9 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 155. Up to 33 conditions per place. [2024-02-07 14:55:02,544 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 18 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2024-02-07 14:55:02,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 31 transitions, 124 flow [2024-02-07 14:55:02,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:55:02,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:55:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2024-02-07 14:55:02,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5059523809523809 [2024-02-07 14:55:02,545 INFO L175 Difference]: Start difference. First operand has 46 places, 30 transitions, 82 flow. Second operand 4 states and 85 transitions. [2024-02-07 14:55:02,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 31 transitions, 124 flow [2024-02-07 14:55:02,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 31 transitions, 109 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-02-07 14:55:02,546 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 69 flow [2024-02-07 14:55:02,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=69, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-02-07 14:55:02,547 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -6 predicate places. [2024-02-07 14:55:02,547 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 69 flow [2024-02-07 14:55:02,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:02,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:02,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:02,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 14:55:02,548 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:02,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:02,548 INFO L85 PathProgramCache]: Analyzing trace with hash -318382813, now seen corresponding path program 1 times [2024-02-07 14:55:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:02,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618451875] [2024-02-07 14:55:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:02,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:55:02,559 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:55:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:55:02,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:55:02,579 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:55:02,580 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-02-07 14:55:02,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-02-07 14:55:02,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-02-07 14:55:02,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-02-07 14:55:02,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 8 remaining) [2024-02-07 14:55:02,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-02-07 14:55:02,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 8 remaining) [2024-02-07 14:55:02,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 8 remaining) [2024-02-07 14:55:02,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 14:55:02,583 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:02,587 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:55:02,587 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:55:02,604 INFO L503 ceAbstractionStarter]: Automizer considered 5 witness invariants [2024-02-07 14:55:02,605 INFO L504 ceAbstractionStarter]: WitnessConsidered=5 [2024-02-07 14:55:02,605 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:55:02 BasicIcfg [2024-02-07 14:55:02,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:55:02,606 INFO L158 Benchmark]: Toolchain (without parser) took 2832.96ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 75.3MB in the beginning and 115.8MB in the end (delta: -40.5MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-02-07 14:55:02,606 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:55:02,606 INFO L158 Benchmark]: Witness Parser took 0.87ms. Allocated memory is still 153.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:55:02,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 538.07ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 75.2MB in the beginning and 156.9MB in the end (delta: -81.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-02-07 14:55:02,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.89ms. Allocated memory is still 201.3MB. Free memory was 156.9MB in the beginning and 154.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:55:02,607 INFO L158 Benchmark]: Boogie Preprocessor took 61.40ms. Allocated memory is still 201.3MB. Free memory was 154.9MB in the beginning and 152.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:55:02,607 INFO L158 Benchmark]: RCFGBuilder took 488.60ms. Allocated memory is still 201.3MB. Free memory was 152.6MB in the beginning and 121.3MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-02-07 14:55:02,608 INFO L158 Benchmark]: TraceAbstraction took 1698.58ms. Allocated memory is still 201.3MB. Free memory was 120.3MB in the beginning and 115.8MB in the end (delta: 4.5MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-02-07 14:55:02,609 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.87ms. Allocated memory is still 153.1MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 538.07ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 75.2MB in the beginning and 156.9MB in the end (delta: -81.8MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.89ms. Allocated memory is still 201.3MB. Free memory was 156.9MB in the beginning and 154.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.40ms. Allocated memory is still 201.3MB. Free memory was 154.9MB in the beginning and 152.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.60ms. Allocated memory is still 201.3MB. Free memory was 152.6MB in the beginning and 121.3MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1698.58ms. Allocated memory is still 201.3MB. Free memory was 120.3MB in the beginning and 115.8MB in the end (delta: 4.5MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, r=1] [L700] COND TRUE 0 \read(r) [L701] 0 g = 17 VAL [A={3:0}, B={4:0}, arg={0:0}, g=17, id={5:0}, r=1] [L702] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[17]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, g=17, id={5:0}, r=1] [L703] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPNEQ,IdentifierExpression[r],IntegerLiteral[0]]]] VAL [A={3:0}, B={4:0}, arg={0:0}, g=17, id={5:0}, r=1] [L705] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[g]],BinaryExpression[COMPLEQ,IntegerLiteral[17],IdentifierExpression[g]]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[42]]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[g],IntegerLiteral[25]],IntegerLiteral[17]]],BinaryExpression[COMPNEQ,IdentifierExpression[g],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[17]],BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[42]]]]]] [L705] 0 t = g VAL [A={3:0}, B={4:0}, arg={0:0}, g=17, id={5:0}, r=1, t=17] [L706] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[t]],BinaryExpression[COMPLEQ,IntegerLiteral[17],IdentifierExpression[t]]],BinaryExpression[COMPLEQ,IdentifierExpression[t],IntegerLiteral[42]]],BinaryExpression[COMPLEQ,IdentifierExpression[t],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[t],IntegerLiteral[25]],IntegerLiteral[17]]],BinaryExpression[COMPNEQ,IdentifierExpression[t],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[17]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[42]]]]]] [L706] CALL 0 __VERIFIER_assert(!(t == 17)) [L19] COND TRUE 0 !(cond) VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=17] [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=17] - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 54 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 174 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 454 IncrementalHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 34 mSDtfsCounter, 454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=4, InterpolantAutomatonStates: 28, 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, 0.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 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 14:55:02,656 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