./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_17-traces-rpb-litmus_unknown_1_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_17-traces-rpb-litmus_unknown_1_pos.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 14:55:06,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:55:06,394 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:55:06,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:55:06,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:55:06,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:55:06,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:55:06,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:55:06,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:55:06,429 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:55:06,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:55:06,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:55:06,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:55:06,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:55:06,432 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:55:06,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:55:06,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:55:06,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:55:06,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:55:06,433 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:55:06,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:55:06,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:55:06,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:55:06,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:55:06,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:55:06,435 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:55:06,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:55:06,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:55:06,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:55:06,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:55:06,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:55:06,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:55:06,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:55:06,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:55:06,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:55:06,438 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:55:06,438 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:55:06,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:55:06,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:55:06,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:55:06,438 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:55:06,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:55:06,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:55:06,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:55:06,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:55:06,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:55:06,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:55:06,687 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:55:06,687 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:55:06,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/36-apron_17-traces-rpb-litmus_unknown_1_pos.yml/witness.yml [2024-02-07 14:55:06,797 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:55:06,797 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:55:06,798 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-02-07 14:55:07,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:55:07,983 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:55:07,984 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-02-07 14:55:07,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ca3152e/e52ffa71a8754d88a3c20754f9b2155a/FLAG8e0246d38 [2024-02-07 14:55:08,010 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07ca3152e/e52ffa71a8754d88a3c20754f9b2155a [2024-02-07 14:55:08,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:55:08,012 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:55:08,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:55:08,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:55:08,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:55:08,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:55:06" (1/2) ... [2024-02-07 14:55:08,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c625fbe and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08, skipping insertion in model container [2024-02-07 14:55:08,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:55:06" (1/2) ... [2024-02-07 14:55:08,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@14fd4069 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:55:08, skipping insertion in model container [2024-02-07 14:55:08,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:55:08" (2/2) ... [2024-02-07 14:55:08,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c625fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08, skipping insertion in model container [2024-02-07 14:55:08,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:55:08" (2/2) ... [2024-02-07 14:55:08,021 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:55:08,058 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:55:08,059 INFO L76 edCorrectnessWitness]: Location invariant before [L703-L703] r != 0 [2024-02-07 14:55:08,059 INFO L76 edCorrectnessWitness]: Location invariant before [L702-L702] g == 17 [2024-02-07 14:55:08,059 INFO L76 edCorrectnessWitness]: Location invariant after [L694-L694] ((((4294967296LL + (long long )r) + (long long )t >= 0LL) && ((4294967295LL - (long long )r) + (long long )t >= 0LL)) && ((4294967295LL + (long long )r) - (long long )t >= 0LL)) && ((4294967294LL - (long long )r) - (long long )t >= 0LL) [2024-02-07 14:55:08,059 INFO L76 edCorrectnessWitness]: Location invariant before [L705-L705] ((((((0 <= g) && (17 <= g)) && (g <= 42)) && (g <= 127)) && (g % 25 == 17)) && (g != 0)) && (g == 17 || g == 42) [2024-02-07 14:55:08,059 INFO L76 edCorrectnessWitness]: Location invariant before [L689-L689] g == 42 [2024-02-07 14:55:08,060 INFO L76 edCorrectnessWitness]: Location invariant before [L694-L694] ((((4294967296LL + (long long )r) + (long long )t >= 0LL) && ((4294967295LL - (long long )r) + (long long )t >= 0LL)) && ((4294967295LL + (long long )r) - (long long )t >= 0LL)) && ((4294967294LL - (long long )r) - (long long )t >= 0LL) [2024-02-07 14:55:08,060 INFO L76 edCorrectnessWitness]: Location invariant before [L706-L706] ((((((0 <= t) && (17 <= t)) && (t <= 42)) && (t <= 127)) && (t % 25 == 17)) && (t != 0)) && (t == 17 || t == 42) [2024-02-07 14:55:08,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:55:08,245 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2024-02-07 14:55:08,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:55:08,401 INFO L203 MainTranslator]: Completed pre-run [2024-02-07 14:55:08,413 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] Start Parsing Local [2024-02-07 14:55:08,470 WARN L423 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-07 14:55:08,470 WARN L423 MainDispatcher]: Unable to annotate r = __VERIFIER_nondet_int() with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:55:08,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:55:08,528 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:55:08,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08 WrapperNode [2024-02-07 14:55:08,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:55:08,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:55:08,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:55:08,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:55:08,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,570 INFO L138 Inliner]: procedures = 164, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2024-02-07 14:55:08,571 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:55:08,571 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:55:08,571 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:55:08,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:55:08,579 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,588 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,608 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 1, 5]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 0, 5]. The 1 writes are split as follows [0, 0, 1, 0]. [2024-02-07 14:55:08,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,623 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:55:08,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:55:08,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:55:08,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:55:08,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (1/1) ... [2024-02-07 14:55:08,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:55:08,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:55:08,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:55:08,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:55:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:55:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:55:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:55:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:55:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 14:55:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:55:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:55:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 14:55:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 14:55:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:55:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:55:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:55:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:55:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:55:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 14:55:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:55:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:55:08,710 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:55:08,848 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:55:08,851 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:55:09,089 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:55:09,089 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:55:09,231 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:55:09,231 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:55:09,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:55:09 BoogieIcfgContainer [2024-02-07 14:55:09,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:55:09,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:55:09,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:55:09,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:55:09,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:55:06" (1/4) ... [2024-02-07 14:55:09,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6f2014 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:55:09, skipping insertion in model container [2024-02-07 14:55:09,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:55:08" (2/4) ... [2024-02-07 14:55:09,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6f2014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:55:09, skipping insertion in model container [2024-02-07 14:55:09,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:55:08" (3/4) ... [2024-02-07 14:55:09,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6f2014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:55:09, skipping insertion in model container [2024-02-07 14:55:09,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:55:09" (4/4) ... [2024-02-07 14:55:09,244 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2024-02-07 14:55:09,263 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:55:09,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-02-07 14:55:09,264 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:55:09,304 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-07 14:55:09,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 88 flow [2024-02-07 14:55:09,364 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-02-07 14:55:09,365 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:09,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 83 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-02-07 14:55:09,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 88 flow [2024-02-07 14:55:09,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 41 transitions, 85 flow [2024-02-07 14:55:09,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:55:09,393 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;@f6d3a04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:55:09,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-02-07 14:55:09,403 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:55:09,404 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-02-07 14:55:09,404 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:09,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:09,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:09,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:09,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:09,411 INFO L85 PathProgramCache]: Analyzing trace with hash 294152914, now seen corresponding path program 1 times [2024-02-07 14:55:09,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:09,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257047923] [2024-02-07 14:55:09,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:09,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:09,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:09,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:09,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257047923] [2024-02-07 14:55:09,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257047923] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:09,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:09,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:55:09,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427214543] [2024-02-07 14:55:09,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:09,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:55:09,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:09,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:55:09,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:55:09,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 42 [2024-02-07 14:55:09,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:09,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:09,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 42 [2024-02-07 14:55:09,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:09,840 INFO L124 PetriNetUnfolderBase]: 160/502 cut-off events. [2024-02-07 14:55:09,840 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:55:09,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 502 events. 160/502 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2856 event pairs, 73 based on Foata normal form. 22/473 useless extension candidates. Maximal degree in co-relation 863. Up to 201 conditions per place. [2024-02-07 14:55:09,844 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 31 selfloop transitions, 4 changer transitions 4/55 dead transitions. [2024-02-07 14:55:09,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 55 transitions, 191 flow [2024-02-07 14:55:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:55:09,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:55:09,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-02-07 14:55:09,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.753968253968254 [2024-02-07 14:55:09,854 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 85 flow. Second operand 3 states and 95 transitions. [2024-02-07 14:55:09,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 55 transitions, 191 flow [2024-02-07 14:55:09,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:55:09,858 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 112 flow [2024-02-07 14:55:09,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2024-02-07 14:55:09,863 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-02-07 14:55:09,863 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 112 flow [2024-02-07 14:55:09,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:09,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:09,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:09,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:55:09,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:09,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:09,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1006231563, now seen corresponding path program 1 times [2024-02-07 14:55:09,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:09,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762174191] [2024-02-07 14:55:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:09,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:09,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:09,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:09,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762174191] [2024-02-07 14:55:09,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762174191] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:09,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:09,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:55:09,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406913570] [2024-02-07 14:55:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:09,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:55:09,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:09,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:55:09,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:55:09,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 42 [2024-02-07 14:55:09,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:09,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:09,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 42 [2024-02-07 14:55:09,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:10,039 INFO L124 PetriNetUnfolderBase]: 139/451 cut-off events. [2024-02-07 14:55:10,040 INFO L125 PetriNetUnfolderBase]: For 102/110 co-relation queries the response was YES. [2024-02-07 14:55:10,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 451 events. 139/451 cut-off events. For 102/110 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2521 event pairs, 68 based on Foata normal form. 27/450 useless extension candidates. Maximal degree in co-relation 844. Up to 195 conditions per place. [2024-02-07 14:55:10,045 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 31 selfloop transitions, 2 changer transitions 4/53 dead transitions. [2024-02-07 14:55:10,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 53 transitions, 202 flow [2024-02-07 14:55:10,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:55:10,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:55:10,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-02-07 14:55:10,048 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-02-07 14:55:10,050 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 112 flow. Second operand 3 states and 91 transitions. [2024-02-07 14:55:10,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 53 transitions, 202 flow [2024-02-07 14:55:10,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:55:10,054 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 104 flow [2024-02-07 14:55:10,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2024-02-07 14:55:10,059 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 3 predicate places. [2024-02-07 14:55:10,059 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 104 flow [2024-02-07 14:55:10,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:10,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:10,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:10,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:55:10,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:10,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1128406772, now seen corresponding path program 1 times [2024-02-07 14:55:10,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246594103] [2024-02-07 14:55:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:55:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:55:10,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:55:10,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246594103] [2024-02-07 14:55:10,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246594103] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:55:10,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:55:10,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:55:10,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589829308] [2024-02-07 14:55:10,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:55:10,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:55:10,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:55:10,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:55:10,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:55:10,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-02-07 14:55:10,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:10,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:55:10,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-02-07 14:55:10,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:55:10,466 INFO L124 PetriNetUnfolderBase]: 174/531 cut-off events. [2024-02-07 14:55:10,467 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-02-07 14:55:10,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 531 events. 174/531 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3046 event pairs, 38 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 1031. Up to 165 conditions per place. [2024-02-07 14:55:10,471 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 39 selfloop transitions, 4 changer transitions 8/66 dead transitions. [2024-02-07 14:55:10,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 66 transitions, 262 flow [2024-02-07 14:55:10,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:55:10,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:55:10,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-02-07 14:55:10,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-02-07 14:55:10,476 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 104 flow. Second operand 4 states and 116 transitions. [2024-02-07 14:55:10,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 66 transitions, 262 flow [2024-02-07 14:55:10,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 66 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:55:10,479 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 123 flow [2024-02-07 14:55:10,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=123, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2024-02-07 14:55:10,480 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 7 predicate places. [2024-02-07 14:55:10,480 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 123 flow [2024-02-07 14:55:10,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:55:10,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:55:10,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:55:10,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:55:10,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-02-07 14:55:10,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:55:10,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2067156928, now seen corresponding path program 1 times [2024-02-07 14:55:10,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:55:10,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454999246] [2024-02-07 14:55:10,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:55:10,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:55:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:55:10,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-07 14:55:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-07 14:55:10,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-07 14:55:10,550 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-07 14:55:10,551 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2024-02-07 14:55:10,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-02-07 14:55:10,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-02-07 14:55:10,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-02-07 14:55:10,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 8 remaining) [2024-02-07 14:55:10,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-02-07 14:55:10,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 8 remaining) [2024-02-07 14:55:10,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 8 remaining) [2024-02-07 14:55:10,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 14:55:10,555 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-02-07 14:55:10,560 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:55:10,560 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:55:10,581 INFO L503 ceAbstractionStarter]: Automizer considered 5 witness invariants [2024-02-07 14:55:10,581 INFO L504 ceAbstractionStarter]: WitnessConsidered=5 [2024-02-07 14:55:10,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:55:10 BasicIcfg [2024-02-07 14:55:10,582 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:55:10,582 INFO L158 Benchmark]: Toolchain (without parser) took 2570.47ms. Allocated memory is still 176.2MB. Free memory was 149.4MB in the beginning and 96.9MB in the end (delta: 52.5MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2024-02-07 14:55:10,584 INFO L158 Benchmark]: Witness Parser took 0.71ms. Allocated memory is still 132.1MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:55:10,585 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 132.1MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:55:10,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.77ms. Allocated memory is still 176.2MB. Free memory was 148.6MB in the beginning and 123.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-02-07 14:55:10,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.85ms. Allocated memory is still 176.2MB. Free memory was 123.5MB in the beginning and 121.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:55:10,586 INFO L158 Benchmark]: Boogie Preprocessor took 60.02ms. Allocated memory is still 176.2MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:55:10,587 INFO L158 Benchmark]: RCFGBuilder took 601.15ms. Allocated memory is still 176.2MB. Free memory was 119.3MB in the beginning and 87.8MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-02-07 14:55:10,587 INFO L158 Benchmark]: TraceAbstraction took 1346.09ms. Allocated memory is still 176.2MB. Free memory was 86.8MB in the beginning and 96.9MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:55:10,588 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 0.71ms. Allocated memory is still 132.1MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 132.1MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.77ms. Allocated memory is still 176.2MB. Free memory was 148.6MB in the beginning and 123.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.85ms. Allocated memory is still 176.2MB. Free memory was 123.5MB in the beginning and 121.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.02ms. Allocated memory is still 176.2MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 601.15ms. Allocated memory is still 176.2MB. Free memory was 119.3MB in the beginning and 87.8MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1346.09ms. Allocated memory is still 176.2MB. Free memory was 86.8MB in the beginning and 96.9MB in the end (delta: -10.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, r=0] [L700] COND FALSE 0 !(\read(r)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, r=0] [L705] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[g]],BinaryExpression[COMPLEQ,IntegerLiteral[17],IdentifierExpression[g]]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[42]]],BinaryExpression[COMPLEQ,IdentifierExpression[g],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[g],IntegerLiteral[25]],IntegerLiteral[17]]],BinaryExpression[COMPNEQ,IdentifierExpression[g],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[17]],BinaryExpression[COMPEQ,IdentifierExpression[g],IntegerLiteral[42]]]]]] [L705] 0 t = g VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, r=0, t=42] [L706] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[t]],BinaryExpression[COMPLEQ,IntegerLiteral[17],IdentifierExpression[t]]],BinaryExpression[COMPLEQ,IdentifierExpression[t],IntegerLiteral[42]]],BinaryExpression[COMPLEQ,IdentifierExpression[t],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[t],IntegerLiteral[25]],IntegerLiteral[17]]],BinaryExpression[COMPNEQ,IdentifierExpression[t],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[17]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[42]]]]]] [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=42] [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=42] - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 54 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 15 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=123occurred in iteration=3, InterpolantAutomatonStates: 10, 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, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-02-07 14:55:10,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE