./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-symm.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 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/weaver/chl-sre-symm.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-symm.wvr.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-cb09d65-m [2024-01-27 23:08:26,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:08:26,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:08:26,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:08:26,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:08:26,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:08:26,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:08:26,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:08:26,963 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:08:26,967 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:08:26,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:08:26,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:08:26,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:08:26,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:08:26,969 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:08:26,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:08:26,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:08:26,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:08:26,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:08:26,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:08:26,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:08:26,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:08:26,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:08:26,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:08:26,973 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:08:26,973 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:08:26,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:08:26,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:08:26,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:08:26,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:08:26,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:08:26,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:08:26,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:08:26,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:08:26,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:08:26,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:08:26,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:08:26,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:08:26,977 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:08:26,977 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:08:26,977 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:08:26,978 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:08:26,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:08:26,978 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:08:27,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:08:27,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:08:27,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:08:27,250 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:08:27,250 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:08:27,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-symm.wvr.yml/witness.yml [2024-01-27 23:08:27,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:08:27,332 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:08:27,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2024-01-27 23:08:28,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:08:28,728 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:08:28,729 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c [2024-01-27 23:08:28,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052300a2e/c8177da8f5ad4bc9b1053110bdaca7fd/FLAG1ff5de077 [2024-01-27 23:08:28,749 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052300a2e/c8177da8f5ad4bc9b1053110bdaca7fd [2024-01-27 23:08:28,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:08:28,751 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:08:28,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:08:28,754 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:08:28,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:08:28,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:27" (1/2) ... [2024-01-27 23:08:28,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac2935d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28, skipping insertion in model container [2024-01-27 23:08:28,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:27" (1/2) ... [2024-01-27 23:08:28,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@48e08331 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28, skipping insertion in model container [2024-01-27 23:08:28,762 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:08:28" (2/2) ... [2024-01-27 23:08:28,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac2935d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:28, skipping insertion in model container [2024-01-27 23:08:28,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:08:28" (2/2) ... [2024-01-27 23:08:28,763 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:08:28,777 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] result_2 == 0 [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] result_3 == 0 [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] sponsored_1 == (_Bool)0 [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] sponsored_0 == (_Bool)0 [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] result_3 == 0 [2024-01-27 23:08:28,782 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] result_2 == 0 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] result_3 == 0 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] result_2 == 0 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] sponsored_1 == (_Bool)0 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_2 == 0 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_3 == 0 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-27 23:08:28,783 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_1 == (_Bool)0 [2024-01-27 23:08:28,813 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:08:28,993 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c[2159,2172] [2024-01-27 23:08:29,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:08:29,012 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:08:29,023 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry 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 [2024-01-27 23:08:29,080 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-symm.wvr.c[2159,2172] [2024-01-27 23:08:29,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:08:29,100 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:08:29,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29 WrapperNode [2024-01-27 23:08:29,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:08:29,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:08:29,102 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:08:29,102 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:08:29,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,136 INFO L138 Inliner]: procedures = 21, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-01-27 23:08:29,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:08:29,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:08:29,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:08:29,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:08:29,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,165 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-27 23:08:29,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,172 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,174 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:08:29,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:08:29,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:08:29,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:08:29,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (1/1) ... [2024-01-27 23:08:29,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:08:29,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:08:29,217 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 23:08:29,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 23:08:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:08:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 23:08:29,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 23:08:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 23:08:29,258 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 23:08:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:08:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:08:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:08:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:08:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:08:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:08:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:08:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:08:29,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:08:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:08:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:08:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:08:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:08:29,263 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:08:29,342 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:08:29,344 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:08:29,533 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:08:29,543 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:08:29,685 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:08:29,686 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 23:08:29,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:08:29 BoogieIcfgContainer [2024-01-27 23:08:29,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:08:29,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:08:29,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:08:29,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:08:29,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:27" (1/4) ... [2024-01-27 23:08:29,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442dc41d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:08:29, skipping insertion in model container [2024-01-27 23:08:29,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:08:28" (2/4) ... [2024-01-27 23:08:29,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442dc41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:08:29, skipping insertion in model container [2024-01-27 23:08:29,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:29" (3/4) ... [2024-01-27 23:08:29,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442dc41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:08:29, skipping insertion in model container [2024-01-27 23:08:29,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:08:29" (4/4) ... [2024-01-27 23:08:29,695 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-symm.wvr.c [2024-01-27 23:08:29,712 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:08:29,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-01-27 23:08:29,712 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:08:29,767 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 23:08:29,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 43 transitions, 100 flow [2024-01-27 23:08:29,849 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2024-01-27 23:08:29,850 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 23:08:29,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 0/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 23 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-27 23:08:29,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 43 transitions, 100 flow [2024-01-27 23:08:29,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 40 transitions, 92 flow [2024-01-27 23:08:29,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:08:29,883 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;@37e246aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:08:29,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-01-27 23:08:29,886 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:08:29,886 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:08:29,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:08:29,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:29,887 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:08:29,888 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-27 23:08:29,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:29,892 INFO L85 PathProgramCache]: Analyzing trace with hash 8163, now seen corresponding path program 1 times [2024-01-27 23:08:29,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:29,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669190294] [2024-01-27 23:08:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:29,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669190294] [2024-01-27 23:08:30,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669190294] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861834458] [2024-01-27 23:08:30,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,076 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-01-27 23:08:30,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 92 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) [2024-01-27 23:08:30,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-01-27 23:08:30,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,165 INFO L124 PetriNetUnfolderBase]: 24/89 cut-off events. [2024-01-27 23:08:30,165 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 23:08:30,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 89 events. 24/89 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 203 event pairs, 2 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 102. Up to 47 conditions per place. [2024-01-27 23:08:30,170 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 22 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2024-01-27 23:08:30,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 147 flow [2024-01-27 23:08:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-01-27 23:08:30,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-01-27 23:08:30,185 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 92 flow. Second operand 3 states and 87 transitions. [2024-01-27 23:08:30,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 147 flow [2024-01-27 23:08:30,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 42 transitions, 137 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 23:08:30,195 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 82 flow [2024-01-27 23:08:30,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2024-01-27 23:08:30,203 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -5 predicate places. [2024-01-27 23:08:30,204 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 82 flow [2024-01-27 23:08:30,204 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) [2024-01-27 23:08:30,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:08:30,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:08:30,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-27 23:08:30,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,207 INFO L85 PathProgramCache]: Analyzing trace with hash 253311, now seen corresponding path program 1 times [2024-01-27 23:08:30,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305641037] [2024-01-27 23:08:30,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305641037] [2024-01-27 23:08:30,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305641037] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714926860] [2024-01-27 23:08:30,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-01-27 23:08:30,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:30,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-01-27 23:08:30,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,313 INFO L124 PetriNetUnfolderBase]: 24/86 cut-off events. [2024-01-27 23:08:30,316 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-01-27 23:08:30,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 86 events. 24/86 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 180 event pairs, 6 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 80. Up to 37 conditions per place. [2024-01-27 23:08:30,319 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 21 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2024-01-27 23:08:30,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 39 transitions, 135 flow [2024-01-27 23:08:30,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-01-27 23:08:30,323 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-01-27 23:08:30,323 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 82 flow. Second operand 3 states and 89 transitions. [2024-01-27 23:08:30,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 39 transitions, 135 flow [2024-01-27 23:08:30,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 39 transitions, 129 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:30,326 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 76 flow [2024-01-27 23:08:30,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-01-27 23:08:30,327 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -8 predicate places. [2024-01-27 23:08:30,327 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 76 flow [2024-01-27 23:08:30,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:30,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 23:08:30,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:08:30,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-27 23:08:30,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,329 INFO L85 PathProgramCache]: Analyzing trace with hash 7852879, now seen corresponding path program 1 times [2024-01-27 23:08:30,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065774734] [2024-01-27 23:08:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065774734] [2024-01-27 23:08:30,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065774734] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479413241] [2024-01-27 23:08:30,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 43 [2024-01-27 23:08:30,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2024-01-27 23:08:30,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 43 [2024-01-27 23:08:30,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,483 INFO L124 PetriNetUnfolderBase]: 24/83 cut-off events. [2024-01-27 23:08:30,483 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-01-27 23:08:30,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 83 events. 24/83 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 172 event pairs, 24 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 68. Up to 62 conditions per place. [2024-01-27 23:08:30,486 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 16 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2024-01-27 23:08:30,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 33 transitions, 110 flow [2024-01-27 23:08:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-01-27 23:08:30,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6821705426356589 [2024-01-27 23:08:30,489 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 76 flow. Second operand 3 states and 88 transitions. [2024-01-27 23:08:30,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 33 transitions, 110 flow [2024-01-27 23:08:30,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:30,490 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 74 flow [2024-01-27 23:08:30,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2024-01-27 23:08:30,492 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -9 predicate places. [2024-01-27 23:08:30,492 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 74 flow [2024-01-27 23:08:30,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2024-01-27 23:08:30,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:08:30,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:08:30,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-27 23:08:30,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,495 INFO L85 PathProgramCache]: Analyzing trace with hash 243439499, now seen corresponding path program 1 times [2024-01-27 23:08:30,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556328754] [2024-01-27 23:08:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556328754] [2024-01-27 23:08:30,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556328754] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757796544] [2024-01-27 23:08:30,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 43 [2024-01-27 23:08:30,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2024-01-27 23:08:30,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 43 [2024-01-27 23:08:30,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,606 INFO L124 PetriNetUnfolderBase]: 24/81 cut-off events. [2024-01-27 23:08:30,606 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-27 23:08:30,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 81 events. 24/81 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 169 event pairs, 24 based on Foata normal form. 2/82 useless extension candidates. Maximal degree in co-relation 139. Up to 60 conditions per place. [2024-01-27 23:08:30,607 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 15 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2024-01-27 23:08:30,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 31 transitions, 104 flow [2024-01-27 23:08:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-01-27 23:08:30,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6821705426356589 [2024-01-27 23:08:30,609 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 74 flow. Second operand 3 states and 88 transitions. [2024-01-27 23:08:30,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 31 transitions, 104 flow [2024-01-27 23:08:30,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 31 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:30,610 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 70 flow [2024-01-27 23:08:30,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=36, PETRI_TRANSITIONS=31} [2024-01-27 23:08:30,611 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -11 predicate places. [2024-01-27 23:08:30,612 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 70 flow [2024-01-27 23:08:30,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2024-01-27 23:08:30,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 23:08:30,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:08:30,612 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 16 more)] === [2024-01-27 23:08:30,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1043309901, now seen corresponding path program 1 times [2024-01-27 23:08:30,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311173608] [2024-01-27 23:08:30,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:08:30,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 23:08:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:08:30,642 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 23:08:30,643 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 23:08:30,644 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 19 remaining) [2024-01-27 23:08:30,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 19 remaining) [2024-01-27 23:08:30,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 19 remaining) [2024-01-27 23:08:30,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 19 remaining) [2024-01-27 23:08:30,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 19 remaining) [2024-01-27 23:08:30,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 19 remaining) [2024-01-27 23:08:30,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 19 remaining) [2024-01-27 23:08:30,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 19 remaining) [2024-01-27 23:08:30,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 19 remaining) [2024-01-27 23:08:30,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 19 remaining) [2024-01-27 23:08:30,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 19 remaining) [2024-01-27 23:08:30,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 19 remaining) [2024-01-27 23:08:30,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 19 remaining) [2024-01-27 23:08:30,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 19 remaining) [2024-01-27 23:08:30,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (4 of 19 remaining) [2024-01-27 23:08:30,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 19 remaining) [2024-01-27 23:08:30,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 19 remaining) [2024-01-27 23:08:30,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 19 remaining) [2024-01-27 23:08:30,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 19 remaining) [2024-01-27 23:08:30,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:08:30,650 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-27 23:08:30,655 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:08:30,656 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:08:30,676 INFO L503 ceAbstractionStarter]: Automizer considered 14 witness invariants [2024-01-27 23:08:30,676 INFO L504 ceAbstractionStarter]: WitnessConsidered=14 [2024-01-27 23:08:30,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:08:30 BasicIcfg [2024-01-27 23:08:30,678 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:08:30,678 INFO L158 Benchmark]: Toolchain (without parser) took 1927.52ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 105.4MB in the beginning and 103.7MB in the end (delta: 1.7MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,679 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:30,681 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:30,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.29ms. Allocated memory is still 167.8MB. Free memory was 105.4MB in the beginning and 90.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.15ms. Allocated memory is still 167.8MB. Free memory was 90.8MB in the beginning and 89.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:30,687 INFO L158 Benchmark]: Boogie Preprocessor took 44.57ms. Allocated memory is still 167.8MB. Free memory was 89.2MB in the beginning and 87.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,687 INFO L158 Benchmark]: RCFGBuilder took 503.85ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 87.1MB in the beginning and 180.2MB in the end (delta: -93.2MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,687 INFO L158 Benchmark]: TraceAbstraction took 989.36ms. Allocated memory is still 211.8MB. Free memory was 179.2MB in the beginning and 103.7MB in the end (delta: 75.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,689 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.29ms. Allocated memory is still 167.8MB. Free memory was 105.4MB in the beginning and 90.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.15ms. Allocated memory is still 167.8MB. Free memory was 90.8MB in the beginning and 89.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.57ms. Allocated memory is still 167.8MB. Free memory was 89.2MB in the beginning and 87.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 503.85ms. Allocated memory was 167.8MB in the beginning and 211.8MB in the end (delta: 44.0MB). Free memory was 87.1MB in the beginning and 180.2MB in the end (delta: -93.2MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * TraceAbstraction took 989.36ms. Allocated memory is still 211.8MB. Free memory was 179.2MB in the beginning and 103.7MB in the end (delta: 75.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 58]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] int result_2, result_3; [L39] _Bool sponsored_0, sponsored_1; [L54] pthread_t t1, t2; VAL [result_2=0, result_3=0, sponsored_0=0, sponsored_1=0, t1={3:0}, t2={5:0}] [L57] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_2],IntegerLiteral[0]]]] VAL [result_2=0, result_3=0, sponsored_0=0, sponsored_1=0, t1={3:0}, t2={5:0}] [L57] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_3],IntegerLiteral[0]]]] VAL [result_2=0, result_3=0, sponsored_0=0, sponsored_1=0, t1={3:0}, t2={5:0}] [L57] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_2=0, result_3=0, sponsored_0=0, sponsored_1=0, t1={3:0}, t2={5:0}] [L57] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sponsored_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] [L57] sponsored_0 = __VERIFIER_nondet_bool() [L58] CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [result_2=0, result_3=0, sponsored_0=2, sponsored_1=0, t1={3:0}, t2={5:0}] - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: 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: 62]: 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: 61]: 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 5 procedures, 54 locations, 19 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: 0.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 21 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 23:08:30,716 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