./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/protection/popl20-simple-array-sum.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c ./goblint.2024-05-21_14-57-05.files/protection/popl20-simple-array-sum.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 11:44:16,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 11:44:16,352 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 11:44:16,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 11:44:16,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 11:44:16,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 11:44:16,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 11:44:16,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 11:44:16,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 11:44:16,371 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 11:44:16,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 11:44:16,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 11:44:16,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 11:44:16,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 11:44:16,372 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 11:44:16,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 11:44:16,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 11:44:16,373 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 11:44:16,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 11:44:16,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 11:44:16,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 11:44:16,375 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 11:44:16,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 11:44:16,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 11:44:16,375 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 11:44:16,376 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 11:44:16,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 11:44:16,376 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 11:44:16,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 11:44:16,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 11:44:16,377 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 11:44:16,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 11:44:16,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:44:16,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 11:44:16,378 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 11:44:16,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 11:44:16,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 11:44:16,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 11:44:16,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 11:44:16,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 11:44:16,379 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 11:44:16,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 11:44:16,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 11:44:16,385 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 11:44:16,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 11:44:16,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 11:44:16,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 11:44:16,594 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 11:44:16,595 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 11:44:16,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/popl20-simple-array-sum.wvr.yml/witness.yml [2024-06-14 11:44:16,662 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 11:44:16,662 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 11:44:16,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2024-06-14 11:44:17,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 11:44:17,843 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 11:44:17,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-simple-array-sum.wvr.c [2024-06-14 11:44:17,849 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928fd769b/fcc4a0fd2b2644b5b3c96873c9513515/FLAG4090bc22a [2024-06-14 11:44:17,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/928fd769b/fcc4a0fd2b2644b5b3c96873c9513515 [2024-06-14 11:44:17,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 11:44:17,861 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 11:44:17,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 11:44:17,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 11:44:17,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 11:44:17,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:44:16" (1/2) ... [2024-06-14 11:44:17,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74afc687 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:44:17, skipping insertion in model container [2024-06-14 11:44:17,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:44:16" (1/2) ... [2024-06-14 11:44:17,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47d56d4a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:44:17, skipping insertion in model container [2024-06-14 11:44:17,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:44:17" (2/2) ... [2024-06-14 11:44:17,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74afc687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:17, skipping insertion in model container [2024-06-14 11:44:17,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:44:17" (2/2) ... [2024-06-14 11:44:17,868 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 11:44:17,878 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 11:44:17,879 INFO L97 edCorrectnessWitness]: Location invariant before [L96-L96] ! multithreaded || 0 <= p [2024-06-14 11:44:17,879 INFO L97 edCorrectnessWitness]: Location invariant before [L97-L97] ! multithreaded || 0 <= p [2024-06-14 11:44:17,880 INFO L97 edCorrectnessWitness]: Location invariant before [L98-L98] ! multithreaded || 0 <= p [2024-06-14 11:44:17,880 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 11:44:17,880 INFO L106 edCorrectnessWitness]: ghost_update [L95-L95] multithreaded = 1; [2024-06-14 11:44:17,899 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 11:44:18,067 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:44:18,075 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 11:44:18,119 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 11:44:18,141 INFO L206 MainTranslator]: Completed translation [2024-06-14 11:44:18,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18 WrapperNode [2024-06-14 11:44:18,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 11:44:18,143 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 11:44:18,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 11:44:18,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 11:44:18,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,173 INFO L138 Inliner]: procedures = 25, calls = 29, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 117 [2024-06-14 11:44:18,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 11:44:18,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 11:44:18,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 11:44:18,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 11:44:18,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,206 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-06-14 11:44:18,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 11:44:18,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 11:44:18,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 11:44:18,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 11:44:18,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (1/1) ... [2024-06-14 11:44:18,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 11:44:18,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 11:44:18,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-14 11:44:18,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-14 11:44:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 11:44:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 11:44:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 11:44:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 11:44:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 11:44:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 11:44:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 11:44:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 11:44:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 11:44:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 11:44:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 11:44:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 11:44:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 11:44:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 11:44:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 11:44:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 11:44:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 11:44:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 11:44:18,274 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 11:44:18,357 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 11:44:18,359 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 11:44:18,628 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 11:44:18,628 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 11:44:18,793 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 11:44:18,794 INFO L320 CfgBuilder]: Removed 5 assume(true) statements. [2024-06-14 11:44:18,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:44:18 BoogieIcfgContainer [2024-06-14 11:44:18,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 11:44:18,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 11:44:18,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 11:44:18,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 11:44:18,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:44:16" (1/4) ... [2024-06-14 11:44:18,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bfc2a3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 11:44:18, skipping insertion in model container [2024-06-14 11:44:18,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 11:44:17" (2/4) ... [2024-06-14 11:44:18,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bfc2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:44:18, skipping insertion in model container [2024-06-14 11:44:18,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:44:18" (3/4) ... [2024-06-14 11:44:18,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bfc2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:44:18, skipping insertion in model container [2024-06-14 11:44:18,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:44:18" (4/4) ... [2024-06-14 11:44:18,801 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2024-06-14 11:44:18,813 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 11:44:18,814 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 11:44:18,814 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 11:44:18,852 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-14 11:44:18,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 44 transitions, 109 flow [2024-06-14 11:44:18,910 INFO L124 PetriNetUnfolderBase]: 6/41 cut-off events. [2024-06-14 11:44:18,910 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-14 11:44:18,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 6/41 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 54 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-06-14 11:44:18,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 44 transitions, 109 flow [2024-06-14 11:44:18,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 39 transitions, 93 flow [2024-06-14 11:44:18,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 11:44:18,941 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;@370bdfd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 11:44:18,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 11:44:18,945 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 11:44:18,945 INFO L124 PetriNetUnfolderBase]: 3/11 cut-off events. [2024-06-14 11:44:18,945 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 11:44:18,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:18,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:18,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 11:44:18,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:18,950 INFO L85 PathProgramCache]: Analyzing trace with hash 696382408, now seen corresponding path program 1 times [2024-06-14 11:44:18,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:18,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724005474] [2024-06-14 11:44:18,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:18,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:19,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 11:44:19,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:19,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724005474] [2024-06-14 11:44:19,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724005474] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:44:19,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:44:19,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-14 11:44:19,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483148779] [2024-06-14 11:44:19,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:44:19,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 11:44:19,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:19,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 11:44:19,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 11:44:19,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2024-06-14 11:44:19,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:44:19,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:19,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2024-06-14 11:44:19,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:19,423 INFO L124 PetriNetUnfolderBase]: 996/1563 cut-off events. [2024-06-14 11:44:19,424 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-06-14 11:44:19,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3066 conditions, 1563 events. 996/1563 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7046 event pairs, 333 based on Foata normal form. 60/1432 useless extension candidates. Maximal degree in co-relation 2724. Up to 875 conditions per place. [2024-06-14 11:44:19,437 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 44 selfloop transitions, 2 changer transitions 1/54 dead transitions. [2024-06-14 11:44:19,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 226 flow [2024-06-14 11:44:19,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 11:44:19,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 11:44:19,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2024-06-14 11:44:19,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-06-14 11:44:19,449 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 93 flow. Second operand 3 states and 80 transitions. [2024-06-14 11:44:19,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 226 flow [2024-06-14 11:44:19,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 212 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-14 11:44:19,456 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 96 flow [2024-06-14 11:44:19,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2024-06-14 11:44:19,460 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2024-06-14 11:44:19,460 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 96 flow [2024-06-14 11:44:19,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:44:19,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:19,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:19,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 11:44:19,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 11:44:19,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:19,463 INFO L85 PathProgramCache]: Analyzing trace with hash -753419653, now seen corresponding path program 1 times [2024-06-14 11:44:19,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:19,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888396691] [2024-06-14 11:44:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 11:44:19,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:19,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888396691] [2024-06-14 11:44:19,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888396691] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:44:19,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:44:19,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 11:44:19,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11099997] [2024-06-14 11:44:19,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:44:19,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-14 11:44:19,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:19,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-14 11:44:19,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-14 11:44:19,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 44 [2024-06-14 11:44:19,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:44:19,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:19,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 44 [2024-06-14 11:44:19,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:19,847 INFO L124 PetriNetUnfolderBase]: 1412/2193 cut-off events. [2024-06-14 11:44:19,848 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-06-14 11:44:19,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4498 conditions, 2193 events. 1412/2193 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 10145 event pairs, 399 based on Foata normal form. 72/2028 useless extension candidates. Maximal degree in co-relation 1195. Up to 875 conditions per place. [2024-06-14 11:44:19,860 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 58 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2024-06-14 11:44:19,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 70 transitions, 293 flow [2024-06-14 11:44:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-14 11:44:19,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-14 11:44:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-06-14 11:44:19,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6079545454545454 [2024-06-14 11:44:19,863 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 96 flow. Second operand 4 states and 107 transitions. [2024-06-14 11:44:19,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 70 transitions, 293 flow [2024-06-14 11:44:19,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 70 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 11:44:19,870 INFO L231 Difference]: Finished difference. Result has 44 places, 42 transitions, 134 flow [2024-06-14 11:44:19,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=134, PETRI_PLACES=44, PETRI_TRANSITIONS=42} [2024-06-14 11:44:19,873 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-06-14 11:44:19,873 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 42 transitions, 134 flow [2024-06-14 11:44:19,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:44:19,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:19,877 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:19,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-14 11:44:19,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 11:44:19,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:19,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1231245986, now seen corresponding path program 1 times [2024-06-14 11:44:19,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:19,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388521232] [2024-06-14 11:44:19,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:19,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:20,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-14 11:44:20,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:20,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388521232] [2024-06-14 11:44:20,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388521232] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 11:44:20,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 11:44:20,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-14 11:44:20,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731993649] [2024-06-14 11:44:20,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 11:44:20,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 11:44:20,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:20,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 11:44:20,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-14 11:44:20,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-06-14 11:44:20,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 42 transitions, 134 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:44:20,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:20,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-06-14 11:44:20,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:20,329 INFO L124 PetriNetUnfolderBase]: 1600/2690 cut-off events. [2024-06-14 11:44:20,329 INFO L125 PetriNetUnfolderBase]: For 905/923 co-relation queries the response was YES. [2024-06-14 11:44:20,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5857 conditions, 2690 events. 1600/2690 cut-off events. For 905/923 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 13883 event pairs, 1130 based on Foata normal form. 44/2402 useless extension candidates. Maximal degree in co-relation 2683. Up to 1809 conditions per place. [2024-06-14 11:44:20,341 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 29 selfloop transitions, 4 changer transitions 39/83 dead transitions. [2024-06-14 11:44:20,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 83 transitions, 377 flow [2024-06-14 11:44:20,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 11:44:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 11:44:20,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 149 transitions. [2024-06-14 11:44:20,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5643939393939394 [2024-06-14 11:44:20,343 INFO L175 Difference]: Start difference. First operand has 44 places, 42 transitions, 134 flow. Second operand 6 states and 149 transitions. [2024-06-14 11:44:20,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 83 transitions, 377 flow [2024-06-14 11:44:20,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 83 transitions, 375 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 11:44:20,345 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 164 flow [2024-06-14 11:44:20,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-06-14 11:44:20,345 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-06-14 11:44:20,346 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 164 flow [2024-06-14 11:44:20,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:44:20,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 11:44:20,346 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 11:44:20,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-14 11:44:20,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-14 11:44:20,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 11:44:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1490191997, now seen corresponding path program 1 times [2024-06-14 11:44:20,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 11:44:20,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028660389] [2024-06-14 11:44:20,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 11:44:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:20,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-06-14 11:44:20,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 11:44:20,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028660389] [2024-06-14 11:44:20,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028660389] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 11:44:20,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750988686] [2024-06-14 11:44:20,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 11:44:20,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 11:44:20,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 11:44:20,405 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 11:44:20,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 11:44:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 11:44:20,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2024-06-14 11:44:20,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 11:44:20,574 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-14 11:44:20,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 11:44:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-14 11:44:20,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750988686] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 11:44:20,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-14 11:44:20,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-06-14 11:44:20,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334518381] [2024-06-14 11:44:20,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-14 11:44:20,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-14 11:44:20,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 11:44:20,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-14 11:44:20,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-06-14 11:44:20,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 44 [2024-06-14 11:44:20,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 164 flow. Second operand has 14 states, 14 states have (on average 12.714285714285714) internal successors, (178), 14 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:44:20,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 11:44:20,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 44 [2024-06-14 11:44:20,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 11:44:21,256 INFO L124 PetriNetUnfolderBase]: 2207/3318 cut-off events. [2024-06-14 11:44:21,257 INFO L125 PetriNetUnfolderBase]: For 1290/1290 co-relation queries the response was YES. [2024-06-14 11:44:21,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7937 conditions, 3318 events. 2207/3318 cut-off events. For 1290/1290 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 15681 event pairs, 353 based on Foata normal form. 134/3103 useless extension candidates. Maximal degree in co-relation 5055. Up to 604 conditions per place. [2024-06-14 11:44:21,265 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 0 selfloop transitions, 0 changer transitions 155/155 dead transitions. [2024-06-14 11:44:21,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 155 transitions, 757 flow [2024-06-14 11:44:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-06-14 11:44:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-06-14 11:44:21,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 271 transitions. [2024-06-14 11:44:21,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4737762237762238 [2024-06-14 11:44:21,268 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 164 flow. Second operand 13 states and 271 transitions. [2024-06-14 11:44:21,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 155 transitions, 757 flow [2024-06-14 11:44:21,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 155 transitions, 719 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-06-14 11:44:21,274 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-14 11:44:21,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-06-14 11:44:21,275 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-06-14 11:44:21,275 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-14 11:44:21,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.714285714285714) internal successors, (178), 14 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 11:44:21,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-14 11:44:21,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-14 11:44:21,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-14 11:44:21,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-14 11:44:21,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-14 11:44:21,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-14 11:44:21,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-14 11:44:21,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 11:44:21,493 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-06-14 11:44:21,496 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 11:44:21,496 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 11:44:21,499 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-14 11:44:21,500 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-14 11:44:21,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 11:44:21 BasicIcfg [2024-06-14 11:44:21,501 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 11:44:21,501 INFO L158 Benchmark]: Toolchain (without parser) took 3640.46ms. Allocated memory was 142.6MB in the beginning and 274.7MB in the end (delta: 132.1MB). Free memory was 104.5MB in the beginning and 211.0MB in the end (delta: -106.5MB). Peak memory consumption was 110.8MB. Max. memory is 16.1GB. [2024-06-14 11:44:21,502 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:44:21,502 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 107.0MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 11:44:21,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.88ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 89.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-14 11:44:21,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.72ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 87.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 11:44:21,503 INFO L158 Benchmark]: Boogie Preprocessor took 48.10ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 85.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 11:44:21,503 INFO L158 Benchmark]: RCFGBuilder took 571.29ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 78.4MB in the end (delta: 6.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-14 11:44:21,504 INFO L158 Benchmark]: TraceAbstraction took 2705.04ms. Allocated memory was 142.6MB in the beginning and 274.7MB in the end (delta: 132.1MB). Free memory was 77.7MB in the beginning and 211.0MB in the end (delta: -133.3MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. [2024-06-14 11:44:21,506 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 0.15ms. Allocated memory is still 107.0MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 107.0MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.88ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 89.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.72ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 87.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.10ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 85.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 571.29ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 78.4MB in the end (delta: 6.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2705.04ms. Allocated memory was 142.6MB in the beginning and 274.7MB in the end (delta: 132.1MB). Free memory was 77.7MB in the beginning and 211.0MB in the end (delta: -133.3MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 97]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 98]: 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 7 procedures, 59 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: 2.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 360 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 329 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1067 IncrementalHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 7 mSDtfsCounter, 1067 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=3, InterpolantAutomatonStates: 26, 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, 0.5s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 99 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 3 NumberOfNonLiveVariables, 162 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 13/18 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 11:44:21,543 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