./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-06-19_11-23-25.files/protection/arithmetic_prog_ok.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i ./goblint.2024-06-19_11-23-25.files/protection/arithmetic_prog_ok.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 19:43:26,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 19:43:26,584 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 19:43:26,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 19:43:26,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 19:43:26,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 19:43:26,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 19:43:26,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 19:43:26,612 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 19:43:26,615 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 19:43:26,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 19:43:26,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 19:43:26,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 19:43:26,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 19:43:26,617 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 19:43:26,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 19:43:26,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 19:43:26,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 19:43:26,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 19:43:26,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 19:43:26,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 19:43:26,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 19:43:26,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 19:43:26,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 19:43:26,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 19:43:26,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 19:43:26,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 19:43:26,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 19:43:26,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 19:43:26,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 19:43:26,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 19:43:26,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 19:43:26,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:43:26,622 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 19:43:26,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 19:43:26,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 19:43:26,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 19:43:26,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 19:43:26,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 19:43:26,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 19:43:26,623 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 19:43:26,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 19:43:26,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 19:43:26,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-27 19:43:26,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 19:43:26,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 19:43:26,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 19:43:26,835 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 19:43:26,835 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 19:43:26,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2024-06-27 19:43:27,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 19:43:28,154 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 19:43:28,155 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/arithmetic_prog_ok.i [2024-06-27 19:43:28,174 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/195a57e55/3905f74fa4694fd7b3be2e6e6af80abe/FLAGa81c19545 [2024-06-27 19:43:28,185 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/195a57e55/3905f74fa4694fd7b3be2e6e6af80abe [2024-06-27 19:43:28,187 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-27 19:43:28,187 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-27 19:43:28,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/protection/arithmetic_prog_ok.yml/witness.yml [2024-06-27 19:43:28,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 19:43:28,262 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-27 19:43:28,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 19:43:28,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 19:43:28,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 19:43:28,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:43:28" (1/2) ... [2024-06-27 19:43:28,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b712bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:28, skipping insertion in model container [2024-06-27 19:43:28,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 07:43:28" (1/2) ... [2024-06-27 19:43:28,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53cc1026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 07:43:28, skipping insertion in model container [2024-06-27 19:43:28,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:28" (2/2) ... [2024-06-27 19:43:28,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b712bcc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28, skipping insertion in model container [2024-06-27 19:43:28,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:28" (2/2) ... [2024-06-27 19:43:28,270 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-27 19:43:28,300 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-27 19:43:28,301 INFO L97 edCorrectnessWitness]: Location invariant before [L914-L914] (! multithreaded || (flag == 0 || flag == 1)) && (! multithreaded || (0 <= num && num <= 1)) [2024-06-27 19:43:28,301 INFO L97 edCorrectnessWitness]: Location invariant before [L915-L915] (! multithreaded || (flag == 0 || flag == 1)) && (! multithreaded || (0 <= num && num <= 1)) [2024-06-27 19:43:28,302 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-27 19:43:28,302 INFO L103 edCorrectnessWitness]: ghost_variable m_locked = 0 [2024-06-27 19:43:28,302 INFO L106 edCorrectnessWitness]: ghost_update [L913-L913] multithreaded = 1; [2024-06-27 19:43:28,302 INFO L106 edCorrectnessWitness]: ghost_update [L893-L893] m_locked = 1; [2024-06-27 19:43:28,303 INFO L106 edCorrectnessWitness]: ghost_update [L881-L881] m_locked = 1; [2024-06-27 19:43:28,303 INFO L106 edCorrectnessWitness]: ghost_update [L881-L881] m_locked = 0; [2024-06-27 19:43:28,303 INFO L106 edCorrectnessWitness]: ghost_update [L895-L895] m_locked = 0; [2024-06-27 19:43:28,303 INFO L106 edCorrectnessWitness]: ghost_update [L895-L895] m_locked = 1; [2024-06-27 19:43:28,303 INFO L106 edCorrectnessWitness]: ghost_update [L879-L879] m_locked = 1; [2024-06-27 19:43:28,303 INFO L106 edCorrectnessWitness]: ghost_update [L883-L883] m_locked = 0; [2024-06-27 19:43:28,303 INFO L106 edCorrectnessWitness]: ghost_update [L898-L898] m_locked = 0; [2024-06-27 19:43:28,340 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 19:43:28,713 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:43:28,734 INFO L202 MainTranslator]: Completed pre-run 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 [2024-06-27 19:43:28,882 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 19:43:28,921 INFO L206 MainTranslator]: Completed translation [2024-06-27 19:43:28,922 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28 WrapperNode [2024-06-27 19:43:28,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 19:43:28,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 19:43:28,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 19:43:28,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 19:43:28,928 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 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,939 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 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,954 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-06-27 19:43:28,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 19:43:28,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 19:43:28,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 19:43:28,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 19:43:28,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,965 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,974 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-06-27 19:43:28,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 19:43:28,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 19:43:28,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 19:43:28,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 19:43:28,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (1/1) ... [2024-06-27 19:43:28,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 19:43:29,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:43:29,015 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) [2024-06-27 19:43:29,031 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 [2024-06-27 19:43:29,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-06-27 19:43:29,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-06-27 19:43:29,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-06-27 19:43:29,041 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-27 19:43:29,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 19:43:29,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 19:43:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 19:43:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 19:43:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-27 19:43:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 19:43:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 19:43:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-27 19:43:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-27 19:43:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 19:43:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 19:43:29,044 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 19:43:29,149 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 19:43:29,151 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 19:43:29,334 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 19:43:29,334 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 19:43:29,477 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 19:43:29,480 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-27 19:43:29,481 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:43:29 BoogieIcfgContainer [2024-06-27 19:43:29,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 19:43:29,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 19:43:29,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 19:43:29,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 19:43:29,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 07:43:28" (1/4) ... [2024-06-27 19:43:29,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e93295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 07:43:29, skipping insertion in model container [2024-06-27 19:43:29,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.06 07:43:28" (2/4) ... [2024-06-27 19:43:29,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e93295 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:43:29, skipping insertion in model container [2024-06-27 19:43:29,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.06 07:43:28" (3/4) ... [2024-06-27 19:43:29,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e93295 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.06 07:43:29, skipping insertion in model container [2024-06-27 19:43:29,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 07:43:29" (4/4) ... [2024-06-27 19:43:29,489 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2024-06-27 19:43:29,502 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 19:43:29,502 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 19:43:29,502 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 19:43:29,537 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-27 19:43:29,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 88 flow [2024-06-27 19:43:29,585 INFO L124 PetriNetUnfolderBase]: 4/35 cut-off events. [2024-06-27 19:43:29,586 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-27 19:43:29,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 4/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 66 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-06-27 19:43:29,589 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 88 flow [2024-06-27 19:43:29,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 33 transitions, 75 flow [2024-06-27 19:43:29,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 19:43:29,605 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;@430a599e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 19:43:29,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-06-27 19:43:29,609 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 19:43:29,609 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-06-27 19:43:29,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 19:43:29,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:29,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-27 19:43:29,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:43:29,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:29,614 INFO L85 PathProgramCache]: Analyzing trace with hash 366537731, now seen corresponding path program 1 times [2024-06-27 19:43:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:29,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654314817] [2024-06-27 19:43:29,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:29,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:29,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:29,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654314817] [2024-06-27 19:43:29,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654314817] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:43:29,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:43:29,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 19:43:29,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789689635] [2024-06-27 19:43:29,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:43:29,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:43:29,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:30,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:43:30,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:43:30,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 37 [2024-06-27 19:43:30,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-06-27 19:43:30,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:30,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 37 [2024-06-27 19:43:30,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:30,206 INFO L124 PetriNetUnfolderBase]: 506/859 cut-off events. [2024-06-27 19:43:30,206 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-06-27 19:43:30,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 859 events. 506/859 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3560 event pairs, 169 based on Foata normal form. 25/830 useless extension candidates. Maximal degree in co-relation 1596. Up to 676 conditions per place. [2024-06-27 19:43:30,215 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 35 selfloop transitions, 3 changer transitions 2/47 dead transitions. [2024-06-27 19:43:30,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 47 transitions, 189 flow [2024-06-27 19:43:30,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:43:30,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:43:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-06-27 19:43:30,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6396396396396397 [2024-06-27 19:43:30,226 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 75 flow. Second operand 3 states and 71 transitions. [2024-06-27 19:43:30,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 47 transitions, 189 flow [2024-06-27 19:43:30,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 181 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 19:43:30,233 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 92 flow [2024-06-27 19:43:30,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2024-06-27 19:43:30,238 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2024-06-27 19:43:30,238 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 92 flow [2024-06-27 19:43:30,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-06-27 19:43:30,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:30,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:30,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 19:43:30,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:43:30,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:30,240 INFO L85 PathProgramCache]: Analyzing trace with hash 4981238, now seen corresponding path program 1 times [2024-06-27 19:43:30,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:30,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447486936] [2024-06-27 19:43:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:30,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:30,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:30,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447486936] [2024-06-27 19:43:30,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447486936] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:43:30,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:43:30,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-27 19:43:30,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564372912] [2024-06-27 19:43:30,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:43:30,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 19:43:30,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:30,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 19:43:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 19:43:30,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 37 [2024-06-27 19:43:30,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-06-27 19:43:30,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:30,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 37 [2024-06-27 19:43:30,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:30,516 INFO L124 PetriNetUnfolderBase]: 471/869 cut-off events. [2024-06-27 19:43:30,516 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2024-06-27 19:43:30,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 869 events. 471/869 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3643 event pairs, 143 based on Foata normal form. 160/1021 useless extension candidates. Maximal degree in co-relation 1444. Up to 359 conditions per place. [2024-06-27 19:43:30,520 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 47 selfloop transitions, 7 changer transitions 0/60 dead transitions. [2024-06-27 19:43:30,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 60 transitions, 258 flow [2024-06-27 19:43:30,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 19:43:30,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 19:43:30,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-06-27 19:43:30,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6148648648648649 [2024-06-27 19:43:30,526 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 92 flow. Second operand 4 states and 91 transitions. [2024-06-27 19:43:30,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 60 transitions, 258 flow [2024-06-27 19:43:30,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 60 transitions, 255 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:43:30,530 INFO L231 Difference]: Finished difference. Result has 38 places, 35 transitions, 129 flow [2024-06-27 19:43:30,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=38, PETRI_TRANSITIONS=35} [2024-06-27 19:43:30,535 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2024-06-27 19:43:30,535 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 35 transitions, 129 flow [2024-06-27 19:43:30,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-06-27 19:43:30,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:30,536 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:30,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 19:43:30,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:43:30,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:30,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1521621810, now seen corresponding path program 1 times [2024-06-27 19:43:30,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:30,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572471383] [2024-06-27 19:43:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:30,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:30,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:30,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572471383] [2024-06-27 19:43:30,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572471383] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:43:30,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 19:43:30,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 19:43:30,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413119828] [2024-06-27 19:43:30,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:43:30,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:43:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:30,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:43:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 19:43:30,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-06-27 19:43:30,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-06-27 19:43:30,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:30,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-06-27 19:43:30,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:30,844 INFO L124 PetriNetUnfolderBase]: 567/1117 cut-off events. [2024-06-27 19:43:30,845 INFO L125 PetriNetUnfolderBase]: For 598/612 co-relation queries the response was YES. [2024-06-27 19:43:30,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2549 conditions, 1117 events. 567/1117 cut-off events. For 598/612 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5097 event pairs, 267 based on Foata normal form. 28/1127 useless extension candidates. Maximal degree in co-relation 1999. Up to 599 conditions per place. [2024-06-27 19:43:30,850 INFO L140 encePairwiseOnDemand]: 34/37 looper letters, 39 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-06-27 19:43:30,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 50 transitions, 254 flow [2024-06-27 19:43:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:43:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:43:30,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-06-27 19:43:30,851 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-06-27 19:43:30,852 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 129 flow. Second operand 3 states and 74 transitions. [2024-06-27 19:43:30,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 50 transitions, 254 flow [2024-06-27 19:43:30,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 251 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:43:30,854 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 131 flow [2024-06-27 19:43:30,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2024-06-27 19:43:30,854 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2024-06-27 19:43:30,855 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 131 flow [2024-06-27 19:43:30,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-06-27 19:43:30,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:30,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:30,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 19:43:30,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:43:30,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1483723235, now seen corresponding path program 1 times [2024-06-27 19:43:30,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:30,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006040700] [2024-06-27 19:43:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:30,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:30,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:30,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006040700] [2024-06-27 19:43:30,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006040700] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:43:30,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083820861] [2024-06-27 19:43:30,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:30,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:43:30,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:43:30,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 19:43:30,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-27 19:43:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:31,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2024-06-27 19:43:31,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:43:31,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-06-27 19:43:31,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:31,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-27 19:43:31,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083820861] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 19:43:31,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-27 19:43:31,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-06-27 19:43:31,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930873380] [2024-06-27 19:43:31,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 19:43:31,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 19:43:31,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:31,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 19:43:31,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 19:43:31,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-06-27 19:43:31,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-06-27 19:43:31,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:31,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-06-27 19:43:31,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:31,143 INFO L124 PetriNetUnfolderBase]: 310/698 cut-off events. [2024-06-27 19:43:31,144 INFO L125 PetriNetUnfolderBase]: For 376/382 co-relation queries the response was YES. [2024-06-27 19:43:31,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1599 conditions, 698 events. 310/698 cut-off events. For 376/382 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2822 event pairs, 122 based on Foata normal form. 46/741 useless extension candidates. Maximal degree in co-relation 1139. Up to 283 conditions per place. [2024-06-27 19:43:31,147 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 30 selfloop transitions, 8 changer transitions 0/47 dead transitions. [2024-06-27 19:43:31,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 251 flow [2024-06-27 19:43:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 19:43:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 19:43:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-06-27 19:43:31,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-06-27 19:43:31,148 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 131 flow. Second operand 3 states and 72 transitions. [2024-06-27 19:43:31,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 251 flow [2024-06-27 19:43:31,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:43:31,165 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 145 flow [2024-06-27 19:43:31,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-06-27 19:43:31,166 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2024-06-27 19:43:31,166 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 145 flow [2024-06-27 19:43:31,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-06-27 19:43:31,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:31,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:31,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-27 19:43:31,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:43:31,378 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:43:31,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:31,379 INFO L85 PathProgramCache]: Analyzing trace with hash -2061419536, now seen corresponding path program 1 times [2024-06-27 19:43:31,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:31,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008798749] [2024-06-27 19:43:31,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:31,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:31,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:31,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:31,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008798749] [2024-06-27 19:43:31,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008798749] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:43:31,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220729596] [2024-06-27 19:43:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:31,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:43:31,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:43:31,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 19:43:31,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-27 19:43:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:31,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjunts are in the unsatisfiable core [2024-06-27 19:43:31,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:43:31,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:31,598 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 19:43:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 19:43:31,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220729596] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 19:43:31,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 19:43:31,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-06-27 19:43:31,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97691321] [2024-06-27 19:43:31,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 19:43:31,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 19:43:31,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:31,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 19:43:31,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-06-27 19:43:31,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-06-27 19:43:31,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 145 flow. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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) [2024-06-27 19:43:31,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:31,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-06-27 19:43:31,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:31,837 INFO L124 PetriNetUnfolderBase]: 728/1496 cut-off events. [2024-06-27 19:43:31,837 INFO L125 PetriNetUnfolderBase]: For 1119/1143 co-relation queries the response was YES. [2024-06-27 19:43:31,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3814 conditions, 1496 events. 728/1496 cut-off events. For 1119/1143 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6106 event pairs, 76 based on Foata normal form. 100/1592 useless extension candidates. Maximal degree in co-relation 3280. Up to 294 conditions per place. [2024-06-27 19:43:31,843 INFO L140 encePairwiseOnDemand]: 33/37 looper letters, 74 selfloop transitions, 6 changer transitions 2/90 dead transitions. [2024-06-27 19:43:31,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 90 transitions, 527 flow [2024-06-27 19:43:31,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:43:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:43:31,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2024-06-27 19:43:31,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6621621621621622 [2024-06-27 19:43:31,845 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 145 flow. Second operand 6 states and 147 transitions. [2024-06-27 19:43:31,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 90 transitions, 527 flow [2024-06-27 19:43:31,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 90 transitions, 491 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-27 19:43:31,848 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 183 flow [2024-06-27 19:43:31,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=183, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2024-06-27 19:43:31,848 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2024-06-27 19:43:31,849 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 183 flow [2024-06-27 19:43:31,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 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) [2024-06-27 19:43:31,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 19:43:31,849 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 19:43:31,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-27 19:43:32,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:43:32,060 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-06-27 19:43:32,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 19:43:32,061 INFO L85 PathProgramCache]: Analyzing trace with hash 209869022, now seen corresponding path program 1 times [2024-06-27 19:43:32,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 19:43:32,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321900219] [2024-06-27 19:43:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:32,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 19:43:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-06-27 19:43:32,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 19:43:32,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321900219] [2024-06-27 19:43:32,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321900219] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-27 19:43:32,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739799007] [2024-06-27 19:43:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 19:43:32,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:43:32,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 19:43:32,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-27 19:43:32,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-06-27 19:43:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 19:43:32,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 21 conjunts are in the unsatisfiable core [2024-06-27 19:43:32,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-27 19:43:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-06-27 19:43:32,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-27 19:43:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-06-27 19:43:32,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739799007] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-27 19:43:32,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-27 19:43:32,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 11 [2024-06-27 19:43:32,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860599568] [2024-06-27 19:43:32,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-27 19:43:32,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-27 19:43:32,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 19:43:32,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-27 19:43:32,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-06-27 19:43:32,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 37 [2024-06-27 19:43:32,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 183 flow. Second operand has 12 states, 12 states have (on average 11.5) internal successors, (138), 12 states have internal predecessors, (138), 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) [2024-06-27 19:43:32,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 19:43:32,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 37 [2024-06-27 19:43:32,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 19:43:32,980 INFO L124 PetriNetUnfolderBase]: 1039/2071 cut-off events. [2024-06-27 19:43:32,980 INFO L125 PetriNetUnfolderBase]: For 2336/2336 co-relation queries the response was YES. [2024-06-27 19:43:32,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5370 conditions, 2071 events. 1039/2071 cut-off events. For 2336/2336 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 9177 event pairs, 375 based on Foata normal form. 26/2089 useless extension candidates. Maximal degree in co-relation 4730. Up to 913 conditions per place. [2024-06-27 19:43:32,986 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2024-06-27 19:43:32,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 59 transitions, 363 flow [2024-06-27 19:43:32,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 19:43:32,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 19:43:32,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-06-27 19:43:32,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3918918918918919 [2024-06-27 19:43:32,987 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 183 flow. Second operand 6 states and 87 transitions. [2024-06-27 19:43:32,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 59 transitions, 363 flow [2024-06-27 19:43:32,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 347 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-06-27 19:43:32,990 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-06-27 19:43:32,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-06-27 19:43:32,991 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2024-06-27 19:43:32,991 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-06-27 19:43:32,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.5) internal successors, (138), 12 states have internal predecessors, (138), 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) [2024-06-27 19:43:32,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-06-27 19:43:32,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining) [2024-06-27 19:43:32,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-06-27 19:43:32,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-06-27 19:43:33,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-06-27 19:43:33,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-27 19:43:33,206 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-06-27 19:43:33,208 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 19:43:33,208 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 19:43:33,211 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-27 19:43:33,211 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-27 19:43:33,212 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 07:43:33 BasicIcfg [2024-06-27 19:43:33,212 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 19:43:33,213 INFO L158 Benchmark]: Toolchain (without parser) took 4950.76ms. Allocated memory was 203.4MB in the beginning and 291.5MB in the end (delta: 88.1MB). Free memory was 127.7MB in the beginning and 93.2MB in the end (delta: 34.5MB). Peak memory consumption was 124.9MB. Max. memory is 16.1GB. [2024-06-27 19:43:33,213 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:43:33,213 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 203.4MB. Free memory was 131.4MB in the beginning and 131.3MB in the end (delta: 62.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 19:43:33,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.22ms. Allocated memory is still 203.4MB. Free memory was 127.6MB in the beginning and 154.8MB in the end (delta: -27.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-06-27 19:43:33,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.22ms. Allocated memory is still 203.4MB. Free memory was 154.8MB in the beginning and 152.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:43:33,214 INFO L158 Benchmark]: Boogie Preprocessor took 37.72ms. Allocated memory is still 203.4MB. Free memory was 152.8MB in the beginning and 150.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 19:43:33,214 INFO L158 Benchmark]: RCFGBuilder took 488.39ms. Allocated memory is still 203.4MB. Free memory was 150.2MB in the beginning and 103.3MB in the end (delta: 46.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-06-27 19:43:33,215 INFO L158 Benchmark]: TraceAbstraction took 3728.93ms. Allocated memory was 203.4MB in the beginning and 291.5MB in the end (delta: 88.1MB). Free memory was 102.5MB in the beginning and 93.2MB in the end (delta: 9.3MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2024-06-27 19:43:33,216 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 203.4MB. Free memory was 131.4MB in the beginning and 131.3MB in the end (delta: 62.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.22ms. Allocated memory is still 203.4MB. Free memory was 127.6MB in the beginning and 154.8MB in the end (delta: -27.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.22ms. Allocated memory is still 203.4MB. Free memory was 154.8MB in the beginning and 152.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.72ms. Allocated memory is still 203.4MB. Free memory was 152.8MB in the beginning and 150.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.39ms. Allocated memory is still 203.4MB. Free memory was 150.2MB in the beginning and 103.3MB in the end (delta: 46.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3728.93ms. Allocated memory was 203.4MB in the beginning and 291.5MB in the end (delta: 88.1MB). Free memory was 102.5MB in the beginning and 93.2MB in the end (delta: 9.3MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 914]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 915]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 56 locations, 4 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: 3.6s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 221 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 603 IncrementalHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 12 mSDtfsCounter, 603 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=5, InterpolantAutomatonStates: 25, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 296 ConstructedInterpolants, 0 QuantifiedInterpolants, 1285 SizeOfPredicates, 1 NumberOfNonLiveVariables, 769 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 194/224 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 19:43:33,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE