./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_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-958ec4d-m [2024-02-07 14:26:32,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:26:32,941 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:26:32,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:26:32,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:26:32,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:26:32,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:26:32,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:26:32,981 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:26:32,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:26:32,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:26:32,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:26:32,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:26:32,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:26:32,987 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:26:32,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:26:32,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:26:32,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:26:32,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:26:32,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:26:32,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:26:32,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:26:32,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:26:32,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:26:32,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:26:32,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:26:32,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:26:32,991 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:26:32,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:26:32,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:26:32,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:26:32,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:26:32,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:26:32,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:26:32,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:26:32,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:26:32,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:26:32,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:26:32,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:26:32,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:26:32,995 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:26:32,995 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:26:32,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:26:32,996 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:26:33,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:26:33,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:26:33,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:26:33,268 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:26:33,269 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:26:33,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_33-traces-v-matters_true.yml/witness.yml [2024-02-07 14:26:33,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:26:33,349 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:26:33,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-02-07 14:26:34,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:26:34,727 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:26:34,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_33-traces-v-matters_true.i [2024-02-07 14:26:34,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91701371c/3b4ce27775864bfb81c63d28aa47e43e/FLAG1c7e81f58 [2024-02-07 14:26:34,765 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91701371c/3b4ce27775864bfb81c63d28aa47e43e [2024-02-07 14:26:34,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:26:34,767 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:26:34,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:26:34,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:26:34,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:26:34,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:26:33" (1/2) ... [2024-02-07 14:26:34,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7950297e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:26:34, skipping insertion in model container [2024-02-07 14:26:34,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:26:33" (1/2) ... [2024-02-07 14:26:34,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@65517cf8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:26:34, skipping insertion in model container [2024-02-07 14:26:34,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:26:34" (2/2) ... [2024-02-07 14:26:34,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7950297e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:34, skipping insertion in model container [2024-02-07 14:26:34,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:26:34" (2/2) ... [2024-02-07 14:26:34,780 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:26:34,820 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:26:34,821 INFO L76 edCorrectnessWitness]: Location invariant before [L703-L703] ((((0 <= g) && (g <= 42)) && (g <= 127)) && (g % 2 == 0)) && ((g == 0 || g == 2) || g == 42) [2024-02-07 14:26:34,822 INFO L76 edCorrectnessWitness]: Location invariant before [L701-L701] g == 2 [2024-02-07 14:26:34,822 INFO L76 edCorrectnessWitness]: Location invariant before [L689-L689] g == 42 [2024-02-07 14:26:34,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:26:35,077 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_33-traces-v-matters_true.i[1093,1106] [2024-02-07 14:26:35,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:26:35,246 INFO L203 MainTranslator]: Completed pre-run [2024-02-07 14:26:35,259 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_33-traces-v-matters_true.i[1093,1106] Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:26:35,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:26:35,366 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:26:35,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35 WrapperNode [2024-02-07 14:26:35,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:26:35,367 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:26:35,368 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:26:35,368 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:26:35,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,398 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,422 INFO L138 Inliner]: procedures = 163, calls = 40, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-02-07 14:26:35,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:26:35,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:26:35,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:26:35,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:26:35,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,435 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,448 INFO L175 MemorySlicer]: Split 18 memory accesses to 5 slices as follows [2, 5, 5, 5, 1]. 28 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-02-07 14:26:35,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:26:35,464 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:26:35,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:26:35,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:26:35,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (1/1) ... [2024-02-07 14:26:35,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:26:35,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:26:35,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:26:35,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:26:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:26:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:26:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:26:35,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:26:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:26:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 14:26:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:26:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:26:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 14:26:35,561 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 14:26:35,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:26:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:26:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:26:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:26:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:26:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:26:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 14:26:35,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:26:35,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:26:35,564 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:26:35,697 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:26:35,699 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:26:35,846 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:26:35,846 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:26:35,984 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:26:35,985 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:26:35,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:26:35 BoogieIcfgContainer [2024-02-07 14:26:35,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:26:35,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:26:35,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:26:35,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:26:35,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:26:33" (1/4) ... [2024-02-07 14:26:35,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4646db3a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:26:35, skipping insertion in model container [2024-02-07 14:26:36,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:26:34" (2/4) ... [2024-02-07 14:26:36,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4646db3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:26:36, skipping insertion in model container [2024-02-07 14:26:36,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:35" (3/4) ... [2024-02-07 14:26:36,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4646db3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:26:36, skipping insertion in model container [2024-02-07 14:26:36,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:26:35" (4/4) ... [2024-02-07 14:26:36,006 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_33-traces-v-matters_true.i [2024-02-07 14:26:36,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:26:36,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-02-07 14:26:36,023 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:26:36,075 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:26:36,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 36 transitions, 76 flow [2024-02-07 14:26:36,162 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-02-07 14:26:36,164 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:26:36,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-02-07 14:26:36,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 36 transitions, 76 flow [2024-02-07 14:26:36,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 35 transitions, 73 flow [2024-02-07 14:26:36,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:26:36,197 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;@7e85dbd2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:26:36,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-02-07 14:26:36,215 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:26:36,215 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-02-07 14:26:36,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:26:36,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:36,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:36,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-02-07 14:26:36,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:36,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1698547841, now seen corresponding path program 1 times [2024-02-07 14:26:36,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:36,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155844667] [2024-02-07 14:26:36,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:36,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:36,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:36,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:36,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155844667] [2024-02-07 14:26:36,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155844667] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:36,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:36,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:26:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257554407] [2024-02-07 14:26:36,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:36,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:26:36,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:36,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:26:36,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:26:36,521 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 36 [2024-02-07 14:26:36,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 35 transitions, 73 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:36,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:36,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 36 [2024-02-07 14:26:36,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:36,698 INFO L124 PetriNetUnfolderBase]: 116/368 cut-off events. [2024-02-07 14:26:36,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:26:36,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 368 events. 116/368 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1982 event pairs, 39 based on Foata normal form. 23/364 useless extension candidates. Maximal degree in co-relation 637. Up to 165 conditions per place. [2024-02-07 14:26:36,703 INFO L140 encePairwiseOnDemand]: 29/36 looper letters, 32 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2024-02-07 14:26:36,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 167 flow [2024-02-07 14:26:36,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:26:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:26:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-02-07 14:26:36,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2024-02-07 14:26:36,726 INFO L175 Difference]: Start difference. First operand has 38 places, 35 transitions, 73 flow. Second operand 3 states and 79 transitions. [2024-02-07 14:26:36,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 167 flow [2024-02-07 14:26:36,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:26:36,732 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 96 flow [2024-02-07 14:26:36,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=70, 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=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-02-07 14:26:36,739 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-02-07 14:26:36,739 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 96 flow [2024-02-07 14:26:36,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:36,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:36,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:36,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:26:36,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-02-07 14:26:36,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:36,742 INFO L85 PathProgramCache]: Analyzing trace with hash -777468937, now seen corresponding path program 1 times [2024-02-07 14:26:36,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:36,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720169057] [2024-02-07 14:26:36,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:36,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:36,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:36,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720169057] [2024-02-07 14:26:36,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720169057] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:36,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:36,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:26:36,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938921948] [2024-02-07 14:26:36,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:36,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:26:36,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:36,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:26:36,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:26:36,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 36 [2024-02-07 14:26:36,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:36,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:36,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 36 [2024-02-07 14:26:36,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:36,968 INFO L124 PetriNetUnfolderBase]: 103/339 cut-off events. [2024-02-07 14:26:36,968 INFO L125 PetriNetUnfolderBase]: For 60/65 co-relation queries the response was YES. [2024-02-07 14:26:36,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 339 events. 103/339 cut-off events. For 60/65 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1797 event pairs, 24 based on Foata normal form. 25/351 useless extension candidates. Maximal degree in co-relation 647. Up to 133 conditions per place. [2024-02-07 14:26:36,994 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 31 selfloop transitions, 3 changer transitions 1/47 dead transitions. [2024-02-07 14:26:36,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 47 transitions, 186 flow [2024-02-07 14:26:36,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:26:36,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:26:36,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-02-07 14:26:36,996 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7037037037037037 [2024-02-07 14:26:36,996 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 96 flow. Second operand 3 states and 76 transitions. [2024-02-07 14:26:36,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 47 transitions, 186 flow [2024-02-07 14:26:36,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:26:36,999 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 99 flow [2024-02-07 14:26:36,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2024-02-07 14:26:37,000 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-02-07 14:26:37,000 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 99 flow [2024-02-07 14:26:37,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:37,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:37,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:37,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:26:37,001 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-02-07 14:26:37,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash -371776080, now seen corresponding path program 1 times [2024-02-07 14:26:37,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:37,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327745733] [2024-02-07 14:26:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:37,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:37,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327745733] [2024-02-07 14:26:37,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327745733] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:37,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:37,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:26:37,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969576674] [2024-02-07 14:26:37,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:37,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 14:26:37,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:37,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 14:26:37,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-07 14:26:37,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 36 [2024-02-07 14:26:37,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:37,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:37,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 36 [2024-02-07 14:26:37,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:37,386 INFO L124 PetriNetUnfolderBase]: 49/187 cut-off events. [2024-02-07 14:26:37,386 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-02-07 14:26:37,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 187 events. 49/187 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 794 event pairs, 20 based on Foata normal form. 8/190 useless extension candidates. Maximal degree in co-relation 356. Up to 69 conditions per place. [2024-02-07 14:26:37,390 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 21 selfloop transitions, 6 changer transitions 2/42 dead transitions. [2024-02-07 14:26:37,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 172 flow [2024-02-07 14:26:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:37,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:37,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-02-07 14:26:37,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2024-02-07 14:26:37,395 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 99 flow. Second operand 4 states and 97 transitions. [2024-02-07 14:26:37,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 172 flow [2024-02-07 14:26:37,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 42 transitions, 164 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-02-07 14:26:37,404 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 107 flow [2024-02-07 14:26:37,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2024-02-07 14:26:37,406 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 4 predicate places. [2024-02-07 14:26:37,406 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 107 flow [2024-02-07 14:26:37,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:37,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:37,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:37,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:26:37,407 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-02-07 14:26:37,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:37,408 INFO L85 PathProgramCache]: Analyzing trace with hash 869945549, now seen corresponding path program 1 times [2024-02-07 14:26:37,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:37,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227918889] [2024-02-07 14:26:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:37,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:37,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:37,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:37,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227918889] [2024-02-07 14:26:37,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227918889] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:37,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:37,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:26:37,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511285062] [2024-02-07 14:26:37,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:37,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:26:37,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:37,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:26:37,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:26:37,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2024-02-07 14:26:37,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 107 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:37,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:37,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2024-02-07 14:26:37,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:37,637 INFO L124 PetriNetUnfolderBase]: 68/216 cut-off events. [2024-02-07 14:26:37,638 INFO L125 PetriNetUnfolderBase]: For 67/69 co-relation queries the response was YES. [2024-02-07 14:26:37,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 216 events. 68/216 cut-off events. For 67/69 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 884 event pairs, 27 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 471. Up to 94 conditions per place. [2024-02-07 14:26:37,639 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 19 selfloop transitions, 2 changer transitions 24/54 dead transitions. [2024-02-07 14:26:37,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 259 flow [2024-02-07 14:26:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:26:37,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:26:37,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 98 transitions. [2024-02-07 14:26:37,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5444444444444444 [2024-02-07 14:26:37,642 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 107 flow. Second operand 5 states and 98 transitions. [2024-02-07 14:26:37,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 259 flow [2024-02-07 14:26:37,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:26:37,645 INFO L231 Difference]: Finished difference. Result has 47 places, 29 transitions, 95 flow [2024-02-07 14:26:37,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=95, PETRI_PLACES=47, PETRI_TRANSITIONS=29} [2024-02-07 14:26:37,646 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2024-02-07 14:26:37,646 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 29 transitions, 95 flow [2024-02-07 14:26:37,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:37,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:37,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:37,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 14:26:37,647 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-02-07 14:26:37,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:37,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1165078348, now seen corresponding path program 1 times [2024-02-07 14:26:37,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:37,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633402634] [2024-02-07 14:26:37,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:37,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:37,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:37,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633402634] [2024-02-07 14:26:37,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633402634] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:37,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:37,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:26:37,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170814299] [2024-02-07 14:26:37,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:37,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 14:26:37,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:37,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 14:26:37,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-07 14:26:37,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 36 [2024-02-07 14:26:37,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 29 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:37,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:37,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 36 [2024-02-07 14:26:37,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:37,849 INFO L124 PetriNetUnfolderBase]: 9/66 cut-off events. [2024-02-07 14:26:37,849 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-02-07 14:26:37,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 66 events. 9/66 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 131 event pairs, 1 based on Foata normal form. 4/68 useless extension candidates. Maximal degree in co-relation 141. Up to 21 conditions per place. [2024-02-07 14:26:37,850 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 16 selfloop transitions, 5 changer transitions 2/35 dead transitions. [2024-02-07 14:26:37,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 163 flow [2024-02-07 14:26:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:37,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-02-07 14:26:37,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-02-07 14:26:37,852 INFO L175 Difference]: Start difference. First operand has 47 places, 29 transitions, 95 flow. Second operand 4 states and 93 transitions. [2024-02-07 14:26:37,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 163 flow [2024-02-07 14:26:37,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 140 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-02-07 14:26:37,853 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 94 flow [2024-02-07 14:26:37,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2024-02-07 14:26:37,854 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-02-07 14:26:37,855 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 94 flow [2024-02-07 14:26:37,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:37,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:37,855 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, 1, 1, 1] [2024-02-07 14:26:37,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 14:26:37,856 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-02-07 14:26:37,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:37,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1828137754, now seen corresponding path program 1 times [2024-02-07 14:26:37,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:37,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771181074] [2024-02-07 14:26:37,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:37,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:38,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:38,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:38,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771181074] [2024-02-07 14:26:38,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771181074] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:38,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:38,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 14:26:38,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014482102] [2024-02-07 14:26:38,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:38,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 14:26:38,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:38,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 14:26:38,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-07 14:26:38,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 36 [2024-02-07 14:26:38,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:38,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:38,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 36 [2024-02-07 14:26:38,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:38,044 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-02-07 14:26:38,044 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-02-07 14:26:38,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 28 events. 3/28 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 3 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2024-02-07 14:26:38,045 INFO L140 encePairwiseOnDemand]: 33/36 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-02-07 14:26:38,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 20 transitions, 93 flow [2024-02-07 14:26:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-02-07 14:26:38,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2024-02-07 14:26:38,046 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 94 flow. Second operand 4 states and 82 transitions. [2024-02-07 14:26:38,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 20 transitions, 93 flow [2024-02-07 14:26:38,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 83 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-07 14:26:38,047 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-02-07 14:26:38,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2024-02-07 14:26:38,048 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -9 predicate places. [2024-02-07 14:26:38,048 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-02-07 14:26:38,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:38,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-02-07 14:26:38,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-02-07 14:26:38,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2024-02-07 14:26:38,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-02-07 14:26:38,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 6 remaining) [2024-02-07 14:26:38,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 6 remaining) [2024-02-07 14:26:38,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 14:26:38,053 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-02-07 14:26:38,057 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:26:38,057 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:26:38,061 INFO L503 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-02-07 14:26:38,061 INFO L504 ceAbstractionStarter]: WitnessConsidered=3 [2024-02-07 14:26:38,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:26:38 BasicIcfg [2024-02-07 14:26:38,062 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:26:38,063 INFO L158 Benchmark]: Toolchain (without parser) took 3296.01ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 88.8MB in the beginning and 99.9MB in the end (delta: -11.1MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-02-07 14:26:38,063 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 96.5MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:26:38,063 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:26:38,064 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.48ms. Allocated memory is still 155.2MB. Free memory was 88.8MB in the beginning and 109.6MB in the end (delta: -20.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-02-07 14:26:38,064 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.36ms. Allocated memory is still 155.2MB. Free memory was 109.6MB in the beginning and 107.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:26:38,064 INFO L158 Benchmark]: Boogie Preprocessor took 39.36ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:26:38,065 INFO L158 Benchmark]: RCFGBuilder took 522.13ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 104.9MB in the beginning and 153.7MB in the end (delta: -48.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2024-02-07 14:26:38,065 INFO L158 Benchmark]: TraceAbstraction took 2074.47ms. Allocated memory is still 186.6MB. Free memory was 153.0MB in the beginning and 99.9MB in the end (delta: 53.1MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2024-02-07 14:26:38,067 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.21ms. Allocated memory is still 96.5MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 96.5MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.48ms. Allocated memory is still 155.2MB. Free memory was 88.8MB in the beginning and 109.6MB in the end (delta: -20.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.36ms. Allocated memory is still 155.2MB. Free memory was 109.6MB in the beginning and 107.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.36ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.13ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 104.9MB in the beginning and 153.7MB in the end (delta: -48.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2074.47ms. Allocated memory is still 186.6MB. Free memory was 153.0MB in the beginning and 99.9MB in the end (delta: 53.1MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 701]: 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: 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: 689]: 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, 53 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 312 IncrementalHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 2 mSDtfsCounter, 312 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 23, 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, 0.7s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-07 14:26:38,093 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