./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_42-traces-ex-mini_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_42-traces-ex-mini_true.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-3d25acf-m [2024-01-30 14:21:46,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:21:46,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:21:46,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:21:46,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:21:46,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:21:46,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:21:46,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:21:46,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:21:46,264 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:21:46,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:21:46,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:21:46,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:21:46,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:21:46,266 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:21:46,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:21:46,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:21:46,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:21:46,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:21:46,268 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:21:46,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:21:46,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:21:46,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:21:46,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:21:46,269 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:21:46,269 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:21:46,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:21:46,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:21:46,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:21:46,271 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:21:46,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:21:46,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:21:46,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:46,273 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:21:46,273 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:21:46,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:21:46,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:21:46,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:21:46,274 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:21:46,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:21:46,274 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:21:46,280 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:21:46,281 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:21:46,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:21:46,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:21:46,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:21:46,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:21:46,544 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:21:46,545 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:21:46,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2024-01-30 14:21:47,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:21:48,013 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:21:48,014 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i [2024-01-30 14:21:48,033 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12e30609/98f9ebba65b444f6b7e83d868cb8d901/FLAG60c22e2aa [2024-01-30 14:21:48,049 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d12e30609/98f9ebba65b444f6b7e83d868cb8d901 [2024-01-30 14:21:48,052 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:21:48,053 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:21:48,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_42-traces-ex-mini_true.yml/witness.yml [2024-01-30 14:21:48,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:21:48,147 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:21:48,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:48,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:21:48,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:21:48,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:48" (1/2) ... [2024-01-30 14:21:48,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c40a92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:48, skipping insertion in model container [2024-01-30 14:21:48,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:48" (1/2) ... [2024-01-30 14:21:48,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@49c2ad7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:48, skipping insertion in model container [2024-01-30 14:21:48,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:48" (2/2) ... [2024-01-30 14:21:48,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c40a92a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48, skipping insertion in model container [2024-01-30 14:21:48,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:48" (2/2) ... [2024-01-30 14:21:48,158 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:21:48,197 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:21:48,199 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] g == 17 [2024-01-30 14:21:48,199 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-30 14:21:48,199 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (g == 42) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:48,199 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 42) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:48,199 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 17 [2024-01-30 14:21:48,200 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (g == 17) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:48,200 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g == 17 [2024-01-30 14:21:48,200 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-30 14:21:48,200 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 17) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:48,200 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 17 [2024-01-30 14:21:48,201 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (g == 17) && (g == 17) [2024-01-30 14:21:48,201 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L696] g == 17 [2024-01-30 14:21:48,201 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-30 14:21:48,247 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:21:48,387 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i[1091,1104] [2024-01-30 14:21:48,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:48,560 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:21:48,577 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_42-traces-ex-mini_true.i[1091,1104] [2024-01-30 14:21:48,578 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } 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 [2024-01-30 14:21:48,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:48,699 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:21:48,700 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48 WrapperNode [2024-01-30 14:21:48,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:48,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:48,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:21:48,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:21:48,709 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 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,732 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 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,750 INFO L138 Inliner]: procedures = 163, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-01-30 14:21:48,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:48,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:21:48,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:21:48,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:21:48,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,763 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,780 INFO L175 MemorySlicer]: Split 18 memory accesses to 5 slices as follows [2, 1, 5, 5, 5]. 28 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 5, 5, 5]. The 1 writes are split as follows [0, 1, 0, 0, 0]. [2024-01-30 14:21:48,780 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,787 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,792 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:21:48,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:21:48,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:21:48,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:21:48,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (1/1) ... [2024-01-30 14:21:48,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:48,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:21:48,828 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) [2024-01-30 14:21:48,851 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 [2024-01-30 14:21:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:21:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:21:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:21:48,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:21:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:21:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:21:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:21:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:21:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-30 14:21:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-30 14:21:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:21:48,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:21:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:21:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:21:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:21:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:21:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:21:48,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:21:48,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:21:48,876 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:21:48,997 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:21:48,999 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:21:49,259 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:21:49,259 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:21:49,408 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:21:49,408 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:21:49,409 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:49 BoogieIcfgContainer [2024-01-30 14:21:49,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:21:49,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:21:49,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:21:49,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:21:49,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:21:48" (1/4) ... [2024-01-30 14:21:49,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f50d1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:49, skipping insertion in model container [2024-01-30 14:21:49,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:48" (2/4) ... [2024-01-30 14:21:49,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f50d1a1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:49, skipping insertion in model container [2024-01-30 14:21:49,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:48" (3/4) ... [2024-01-30 14:21:49,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f50d1a1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:49, skipping insertion in model container [2024-01-30 14:21:49,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:49" (4/4) ... [2024-01-30 14:21:49,419 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_42-traces-ex-mini_true.i [2024-01-30 14:21:49,435 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:21:49,435 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-01-30 14:21:49,435 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:21:49,518 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-30 14:21:49,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 54 transitions, 112 flow [2024-01-30 14:21:49,594 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-01-30 14:21:49,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:49,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 1/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-01-30 14:21:49,598 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 54 transitions, 112 flow [2024-01-30 14:21:49,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 53 transitions, 109 flow [2024-01-30 14:21:49,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:21:49,616 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;@574bc442, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:21:49,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-01-30 14:21:49,619 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:21:49,619 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:21:49,619 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:49,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:49,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:21:49,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-01-30 14:21:49,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:49,626 INFO L85 PathProgramCache]: Analyzing trace with hash 8101, now seen corresponding path program 1 times [2024-01-30 14:21:49,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:49,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220137433] [2024-01-30 14:21:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:49,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:49,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:49,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220137433] [2024-01-30 14:21:49,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220137433] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:49,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:49,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:21:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892115572] [2024-01-30 14:21:49,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:49,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:49,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:49,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:49,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:49,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-01-30 14:21:49,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 53 transitions, 109 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) [2024-01-30 14:21:49,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:49,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-01-30 14:21:49,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:50,092 INFO L124 PetriNetUnfolderBase]: 131/461 cut-off events. [2024-01-30 14:21:50,093 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:50,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 794 conditions, 461 events. 131/461 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2547 event pairs, 86 based on Foata normal form. 31/465 useless extension candidates. Maximal degree in co-relation 783. Up to 239 conditions per place. [2024-01-30 14:21:50,098 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 36 selfloop transitions, 7 changer transitions 0/65 dead transitions. [2024-01-30 14:21:50,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 65 transitions, 219 flow [2024-01-30 14:21:50,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:50,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:50,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-01-30 14:21:50,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7469135802469136 [2024-01-30 14:21:50,111 INFO L175 Difference]: Start difference. First operand has 56 places, 53 transitions, 109 flow. Second operand 3 states and 121 transitions. [2024-01-30 14:21:50,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 65 transitions, 219 flow [2024-01-30 14:21:50,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 65 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:21:50,117 INFO L231 Difference]: Finished difference. Result has 58 places, 55 transitions, 158 flow [2024-01-30 14:21:50,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=58, PETRI_TRANSITIONS=55} [2024-01-30 14:21:50,122 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2024-01-30 14:21:50,123 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 55 transitions, 158 flow [2024-01-30 14:21:50,123 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) [2024-01-30 14:21:50,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:50,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:21:50,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:21:50,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-01-30 14:21:50,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:50,124 INFO L85 PathProgramCache]: Analyzing trace with hash 241638990, now seen corresponding path program 1 times [2024-01-30 14:21:50,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:50,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549013712] [2024-01-30 14:21:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:50,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:50,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:50,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549013712] [2024-01-30 14:21:50,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549013712] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:50,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:50,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:50,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214658638] [2024-01-30 14:21:50,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:50,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:50,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:50,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:50,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:50,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 54 [2024-01-30 14:21:50,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 55 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-01-30 14:21:50,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:50,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 54 [2024-01-30 14:21:50,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:50,497 INFO L124 PetriNetUnfolderBase]: 102/428 cut-off events. [2024-01-30 14:21:50,497 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-01-30 14:21:50,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 428 events. 102/428 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2385 event pairs, 63 based on Foata normal form. 22/424 useless extension candidates. Maximal degree in co-relation 796. Up to 215 conditions per place. [2024-01-30 14:21:50,501 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 30 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-30 14:21:50,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 238 flow [2024-01-30 14:21:50,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:50,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:50,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-01-30 14:21:50,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-01-30 14:21:50,503 INFO L175 Difference]: Start difference. First operand has 58 places, 55 transitions, 158 flow. Second operand 4 states and 150 transitions. [2024-01-30 14:21:50,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 238 flow [2024-01-30 14:21:50,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:50,506 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 142 flow [2024-01-30 14:21:50,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2024-01-30 14:21:50,507 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2024-01-30 14:21:50,507 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 142 flow [2024-01-30 14:21:50,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2024-01-30 14:21:50,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:50,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:50,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:21:50,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-01-30 14:21:50,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:50,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1930820242, now seen corresponding path program 1 times [2024-01-30 14:21:50,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:50,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382027512] [2024-01-30 14:21:50,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:50,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:50,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:50,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382027512] [2024-01-30 14:21:50,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382027512] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:50,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:50,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:50,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138801375] [2024-01-30 14:21:50,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:50,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:50,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:50,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 54 [2024-01-30 14:21:50,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-01-30 14:21:50,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:50,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 54 [2024-01-30 14:21:50,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:50,745 INFO L124 PetriNetUnfolderBase]: 170/528 cut-off events. [2024-01-30 14:21:50,760 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-01-30 14:21:50,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 528 events. 170/528 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2804 event pairs, 21 based on Foata normal form. 14/525 useless extension candidates. Maximal degree in co-relation 1068. Up to 232 conditions per place. [2024-01-30 14:21:50,764 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 51 selfloop transitions, 8 changer transitions 0/73 dead transitions. [2024-01-30 14:21:50,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 73 transitions, 310 flow [2024-01-30 14:21:50,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:50,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:50,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-01-30 14:21:50,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5601851851851852 [2024-01-30 14:21:50,770 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 142 flow. Second operand 4 states and 121 transitions. [2024-01-30 14:21:50,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 73 transitions, 310 flow [2024-01-30 14:21:50,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 307 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:50,773 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 151 flow [2024-01-30 14:21:50,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=151, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2024-01-30 14:21:50,774 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -1 predicate places. [2024-01-30 14:21:50,774 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 151 flow [2024-01-30 14:21:50,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-01-30 14:21:50,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:50,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:50,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:21:50,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-01-30 14:21:50,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:50,776 INFO L85 PathProgramCache]: Analyzing trace with hash -274114349, now seen corresponding path program 1 times [2024-01-30 14:21:50,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:50,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131852933] [2024-01-30 14:21:50,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:50,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:50,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:50,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:50,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131852933] [2024-01-30 14:21:50,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131852933] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:50,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:50,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:50,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156535014] [2024-01-30 14:21:50,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:50,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:50,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:50,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:50,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:50,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-01-30 14:21:50,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-01-30 14:21:50,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:50,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-01-30 14:21:50,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:51,020 INFO L124 PetriNetUnfolderBase]: 148/432 cut-off events. [2024-01-30 14:21:51,021 INFO L125 PetriNetUnfolderBase]: For 162/164 co-relation queries the response was YES. [2024-01-30 14:21:51,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 946 conditions, 432 events. 148/432 cut-off events. For 162/164 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2075 event pairs, 17 based on Foata normal form. 40/468 useless extension candidates. Maximal degree in co-relation 932. Up to 232 conditions per place. [2024-01-30 14:21:51,023 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 39 selfloop transitions, 3 changer transitions 8/66 dead transitions. [2024-01-30 14:21:51,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 66 transitions, 275 flow [2024-01-30 14:21:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:51,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-01-30 14:21:51,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-01-30 14:21:51,025 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 151 flow. Second operand 4 states and 136 transitions. [2024-01-30 14:21:51,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 66 transitions, 275 flow [2024-01-30 14:21:51,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 66 transitions, 267 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:51,028 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 113 flow [2024-01-30 14:21:51,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-01-30 14:21:51,029 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-01-30 14:21:51,029 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 113 flow [2024-01-30 14:21:51,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-01-30 14:21:51,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:51,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:51,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:21:51,030 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-01-30 14:21:51,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:51,031 INFO L85 PathProgramCache]: Analyzing trace with hash 142865562, now seen corresponding path program 1 times [2024-01-30 14:21:51,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:51,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186014309] [2024-01-30 14:21:51,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:51,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:51,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:51,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186014309] [2024-01-30 14:21:51,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186014309] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:51,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:51,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:51,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091261230] [2024-01-30 14:21:51,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:51,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:51,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:51,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:51,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:51,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2024-01-30 14:21:51,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:51,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:51,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2024-01-30 14:21:51,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:51,224 INFO L124 PetriNetUnfolderBase]: 98/301 cut-off events. [2024-01-30 14:21:51,225 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-01-30 14:21:51,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 663 conditions, 301 events. 98/301 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1371 event pairs, 62 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 650. Up to 142 conditions per place. [2024-01-30 14:21:51,227 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 33 selfloop transitions, 7 changer transitions 4/56 dead transitions. [2024-01-30 14:21:51,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 56 transitions, 241 flow [2024-01-30 14:21:51,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:51,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2024-01-30 14:21:51,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5592592592592592 [2024-01-30 14:21:51,229 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 113 flow. Second operand 5 states and 151 transitions. [2024-01-30 14:21:51,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 56 transitions, 241 flow [2024-01-30 14:21:51,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 56 transitions, 231 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:51,233 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 123 flow [2024-01-30 14:21:51,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2024-01-30 14:21:51,236 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -7 predicate places. [2024-01-30 14:21:51,236 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 123 flow [2024-01-30 14:21:51,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:21:51,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:51,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:51,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:21:51,238 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-01-30 14:21:51,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:51,238 INFO L85 PathProgramCache]: Analyzing trace with hash -865258865, now seen corresponding path program 1 times [2024-01-30 14:21:51,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:51,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193075484] [2024-01-30 14:21:51,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:51,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:51,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:51,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193075484] [2024-01-30 14:21:51,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193075484] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:51,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:51,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:51,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725626172] [2024-01-30 14:21:51,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:51,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:51,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:51,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:51,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:51,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 54 [2024-01-30 14:21:51,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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) [2024-01-30 14:21:51,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:51,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 54 [2024-01-30 14:21:51,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:51,517 INFO L124 PetriNetUnfolderBase]: 30/156 cut-off events. [2024-01-30 14:21:51,517 INFO L125 PetriNetUnfolderBase]: For 52/53 co-relation queries the response was YES. [2024-01-30 14:21:51,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 156 events. 30/156 cut-off events. For 52/53 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 525 event pairs, 12 based on Foata normal form. 9/160 useless extension candidates. Maximal degree in co-relation 294. Up to 55 conditions per place. [2024-01-30 14:21:51,518 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 18 selfloop transitions, 5 changer transitions 0/42 dead transitions. [2024-01-30 14:21:51,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 42 transitions, 165 flow [2024-01-30 14:21:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:51,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-01-30 14:21:51,519 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7268518518518519 [2024-01-30 14:21:51,519 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 123 flow. Second operand 4 states and 157 transitions. [2024-01-30 14:21:51,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 42 transitions, 165 flow [2024-01-30 14:21:51,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 155 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:51,521 INFO L231 Difference]: Finished difference. Result has 47 places, 37 transitions, 106 flow [2024-01-30 14:21:51,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=47, PETRI_TRANSITIONS=37} [2024-01-30 14:21:51,521 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -9 predicate places. [2024-01-30 14:21:51,522 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 37 transitions, 106 flow [2024-01-30 14:21:51,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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) [2024-01-30 14:21:51,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:51,522 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] [2024-01-30 14:21:51,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:21:51,522 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2024-01-30 14:21:51,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:51,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1150542448, now seen corresponding path program 1 times [2024-01-30 14:21:51,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:51,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275490183] [2024-01-30 14:21:51,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:51,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:51,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:21:51,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:51,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275490183] [2024-01-30 14:21:51,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275490183] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:51,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:51,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-30 14:21:51,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613644212] [2024-01-30 14:21:51,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:51,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-30 14:21:51,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:51,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-30 14:21:51,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-01-30 14:21:51,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 54 [2024-01-30 14:21:51,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 34.833333333333336) internal successors, (209), 6 states have internal predecessors, (209), 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) [2024-01-30 14:21:51,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:51,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 54 [2024-01-30 14:21:51,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:51,765 INFO L124 PetriNetUnfolderBase]: 22/115 cut-off events. [2024-01-30 14:21:51,765 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-01-30 14:21:51,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 115 events. 22/115 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 293 event pairs, 8 based on Foata normal form. 3/113 useless extension candidates. Maximal degree in co-relation 214. Up to 44 conditions per place. [2024-01-30 14:21:51,767 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-01-30 14:21:51,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 158 flow [2024-01-30 14:21:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:51,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:51,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-01-30 14:21:51,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7268518518518519 [2024-01-30 14:21:51,768 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 106 flow. Second operand 4 states and 157 transitions. [2024-01-30 14:21:51,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 158 flow [2024-01-30 14:21:51,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 40 transitions, 136 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-01-30 14:21:51,769 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-01-30 14:21:51,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2024-01-30 14:21:51,771 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -13 predicate places. [2024-01-30 14:21:51,771 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-01-30 14:21:51,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.833333333333336) internal successors, (209), 6 states have internal predecessors, (209), 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) [2024-01-30 14:21:51,774 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 21 remaining) [2024-01-30 14:21:51,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 21 remaining) [2024-01-30 14:21:51,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (18 of 21 remaining) [2024-01-30 14:21:51,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 21 remaining) [2024-01-30 14:21:51,775 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 21 remaining) [2024-01-30 14:21:51,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 21 remaining) [2024-01-30 14:21:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-01-30 14:21:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 21 remaining) [2024-01-30 14:21:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 21 remaining) [2024-01-30 14:21:51,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 21 remaining) [2024-01-30 14:21:51,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 21 remaining) [2024-01-30 14:21:51,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 21 remaining) [2024-01-30 14:21:51,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 21 remaining) [2024-01-30 14:21:51,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 21 remaining) [2024-01-30 14:21:51,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 21 remaining) [2024-01-30 14:21:51,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 21 remaining) [2024-01-30 14:21:51,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 21 remaining) [2024-01-30 14:21:51,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 21 remaining) [2024-01-30 14:21:51,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 21 remaining) [2024-01-30 14:21:51,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 21 remaining) [2024-01-30 14:21:51,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 21 remaining) [2024-01-30 14:21:51,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:21:51,785 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:51,791 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:21:51,791 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:21:51,799 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-01-30 14:21:51,800 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-01-30 14:21:51,801 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:21:51 BasicIcfg [2024-01-30 14:21:51,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:21:51,802 INFO L158 Benchmark]: Toolchain (without parser) took 3654.49ms. Allocated memory was 172.0MB in the beginning and 220.2MB in the end (delta: 48.2MB). Free memory was 110.5MB in the beginning and 148.3MB in the end (delta: -37.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-01-30 14:21:51,802 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:51,802 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 172.0MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:51,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.85ms. Allocated memory is still 172.0MB. Free memory was 110.3MB in the beginning and 87.5MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:51,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.20ms. Allocated memory is still 172.0MB. Free memory was 87.3MB in the beginning and 85.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:51,805 INFO L158 Benchmark]: Boogie Preprocessor took 43.04ms. Allocated memory is still 172.0MB. Free memory was 85.4MB in the beginning and 83.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:51,805 INFO L158 Benchmark]: RCFGBuilder took 614.57ms. Allocated memory is still 172.0MB. Free memory was 83.1MB in the beginning and 52.8MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-30 14:21:51,805 INFO L158 Benchmark]: TraceAbstraction took 2389.33ms. Allocated memory was 172.0MB in the beginning and 220.2MB in the end (delta: 48.2MB). Free memory was 52.0MB in the beginning and 148.3MB in the end (delta: -96.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:51,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.20ms. Allocated memory is still 172.0MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.85ms. Allocated memory is still 172.0MB. Free memory was 110.3MB in the beginning and 87.5MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.20ms. Allocated memory is still 172.0MB. Free memory was 87.3MB in the beginning and 85.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.04ms. Allocated memory is still 172.0MB. Free memory was 85.4MB in the beginning and 83.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 614.57ms. Allocated memory is still 172.0MB. Free memory was 83.1MB in the beginning and 52.8MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2389.33ms. Allocated memory was 172.0MB in the beginning and 220.2MB in the end (delta: 48.2MB). Free memory was 52.0MB in the beginning and 148.3MB in the end (delta: -96.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 696]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: 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 3 procedures, 79 locations, 21 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: 2.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 358 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 487 IncrementalHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 57 mSDtfsCounter, 487 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=1, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-30 14:21:51,844 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