./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-min-le-max.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 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-more-min-le-max.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-min-le-max.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 --- Real Ultimate output --- This is Ultimate 0.2.4-?-80b1b13-m [2024-01-31 17:09:49,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 17:09:49,856 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 17:09:49,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 17:09:49,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 17:09:49,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 17:09:49,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 17:09:49,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 17:09:49,885 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 17:09:49,885 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 17:09:49,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 17:09:49,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 17:09:49,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 17:09:49,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 17:09:49,886 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 17:09:49,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 17:09:49,887 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 17:09:49,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 17:09:49,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 17:09:49,888 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 17:09:49,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 17:09:49,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 17:09:49,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 17:09:49,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 17:09:49,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 17:09:49,890 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 17:09:49,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 17:09:49,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 17:09:49,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 17:09:49,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 17:09:49,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 17:09:49,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 17:09:49,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:09:49,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 17:09:49,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 17:09:49,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 17:09:49,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 17:09:49,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 17:09:49,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 17:09:49,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 17:09:49,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 17:09:49,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 17:09:49,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 17:09:49,894 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 17:09:50,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 17:09:50,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 17:09:50,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 17:09:50,153 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 17:09:50,153 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 17:09:50,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-min-le-max.wvr.yml/witness.yml [2024-01-31 17:09:50,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 17:09:50,262 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 17:09:50,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c [2024-01-31 17:09:51,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 17:09:51,398 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 17:09:51,398 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c [2024-01-31 17:09:51,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a09b534/c10e7102354249cab6702f6ef1e4823a/FLAG15b5ce42d [2024-01-31 17:09:51,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a09b534/c10e7102354249cab6702f6ef1e4823a [2024-01-31 17:09:51,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 17:09:51,417 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 17:09:51,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 17:09:51,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 17:09:51,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 17:09:51,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:09:50" (1/2) ... [2024-01-31 17:09:51,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4353b8c9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:09:51, skipping insertion in model container [2024-01-31 17:09:51,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:09:50" (1/2) ... [2024-01-31 17:09:51,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@681ee766 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:09:51, skipping insertion in model container [2024-01-31 17:09:51,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:09:51" (2/2) ... [2024-01-31 17:09:51,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4353b8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51, skipping insertion in model container [2024-01-31 17:09:51,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:09:51" (2/2) ... [2024-01-31 17:09:51,425 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 17:09:51,449 INFO L93 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-01-31 17:09:51,463 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 17:09:51,604 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c[2525,2538] [2024-01-31 17:09:51,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:09:51,633 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 17:09:51,648 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-le-max.wvr.c[2525,2538] [2024-01-31 17:09:51,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:09:51,664 INFO L208 MainTranslator]: Completed translation [2024-01-31 17:09:51,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51 WrapperNode [2024-01-31 17:09:51,665 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 17:09:51,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 17:09:51,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 17:09:51,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 17:09:51,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,710 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 106 [2024-01-31 17:09:51,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 17:09:51,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 17:09:51,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 17:09:51,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 17:09:51,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,734 INFO L175 MemorySlicer]: Split 15 memory accesses to 5 slices as follows [2, 2, 2, 7, 2]. 47 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-31 17:09:51,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 17:09:51,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 17:09:51,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 17:09:51,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 17:09:51,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (1/1) ... [2024-01-31 17:09:51,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:09:51,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:09:51,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-31 17:09:51,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-31 17:09:51,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 17:09:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 17:09:51,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 17:09:51,844 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 17:09:51,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 17:09:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-31 17:09:51,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-31 17:09:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 17:09:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 17:09:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 17:09:51,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 17:09:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-31 17:09:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 17:09:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 17:09:51,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 17:09:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 17:09:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 17:09:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-31 17:09:51,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 17:09:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 17:09:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-31 17:09:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 17:09:51,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 17:09:51,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 17:09:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 17:09:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 17:09:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-31 17:09:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-31 17:09:51,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 17:09:51,852 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 17:09:51,964 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 17:09:51,966 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 17:09:52,128 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 17:09:52,128 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 17:09:52,330 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 17:09:52,331 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-31 17:09:52,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:09:52 BoogieIcfgContainer [2024-01-31 17:09:52,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 17:09:52,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 17:09:52,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 17:09:52,345 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 17:09:52,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:09:50" (1/4) ... [2024-01-31 17:09:52,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23984ec2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:09:52, skipping insertion in model container [2024-01-31 17:09:52,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 05:09:51" (2/4) ... [2024-01-31 17:09:52,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23984ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:09:52, skipping insertion in model container [2024-01-31 17:09:52,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:09:51" (3/4) ... [2024-01-31 17:09:52,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23984ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:09:52, skipping insertion in model container [2024-01-31 17:09:52,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:09:52" (4/4) ... [2024-01-31 17:09:52,349 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2024-01-31 17:09:52,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 17:09:52,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-31 17:09:52,363 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 17:09:52,424 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-31 17:09:52,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 33 transitions, 87 flow [2024-01-31 17:09:52,509 INFO L124 PetriNetUnfolderBase]: 3/30 cut-off events. [2024-01-31 17:09:52,510 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 17:09:52,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 3/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-01-31 17:09:52,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 33 transitions, 87 flow [2024-01-31 17:09:52,517 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 76 flow [2024-01-31 17:09:52,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 17:09:52,538 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;@671cb2d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 17:09:52,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-01-31 17:09:52,552 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 17:09:52,552 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-01-31 17:09:52,553 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 17:09:52,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:09:52,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:09:52,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:09:52,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:09:52,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1856104863, now seen corresponding path program 1 times [2024-01-31 17:09:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:09:52,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269832375] [2024-01-31 17:09:52,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:09:52,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:09:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:09:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:09:52,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:09:52,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269832375] [2024-01-31 17:09:52,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269832375] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:09:52,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:09:52,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:09:52,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876437607] [2024-01-31 17:09:52,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:09:52,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:09:52,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:09:52,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:09:52,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-31 17:09:52,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-31 17:09:52,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:09:52,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:09:52,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-31 17:09:52,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:09:53,074 INFO L124 PetriNetUnfolderBase]: 328/557 cut-off events. [2024-01-31 17:09:53,075 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-01-31 17:09:53,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1143 conditions, 557 events. 328/557 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2403 event pairs, 133 based on Foata normal form. 26/555 useless extension candidates. Maximal degree in co-relation 1020. Up to 354 conditions per place. [2024-01-31 17:09:53,093 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 33 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2024-01-31 17:09:53,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 41 transitions, 178 flow [2024-01-31 17:09:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 17:09:53,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 17:09:53,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2024-01-31 17:09:53,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2024-01-31 17:09:53,104 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 76 flow. Second operand 4 states and 69 transitions. [2024-01-31 17:09:53,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 41 transitions, 178 flow [2024-01-31 17:09:53,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 162 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-31 17:09:53,108 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 78 flow [2024-01-31 17:09:53,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2024-01-31 17:09:53,112 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places. [2024-01-31 17:09:53,113 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 78 flow [2024-01-31 17:09:53,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:09:53,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:09:53,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:09:53,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 17:09:53,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:09:53,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:09:53,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1973716453, now seen corresponding path program 1 times [2024-01-31 17:09:53,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:09:53,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161404506] [2024-01-31 17:09:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:09:53,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:09:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:09:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:09:53,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:09:53,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161404506] [2024-01-31 17:09:53,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161404506] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:09:53,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:09:53,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:09:53,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827220331] [2024-01-31 17:09:53,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:09:53,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:09:53,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:09:53,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:09:53,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-31 17:09:53,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-31 17:09:53,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:09:53,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:09:53,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-31 17:09:53,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:09:53,451 INFO L124 PetriNetUnfolderBase]: 484/811 cut-off events. [2024-01-31 17:09:53,451 INFO L125 PetriNetUnfolderBase]: For 202/202 co-relation queries the response was YES. [2024-01-31 17:09:53,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 811 events. 484/811 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3871 event pairs, 231 based on Foata normal form. 40/818 useless extension candidates. Maximal degree in co-relation 405. Up to 506 conditions per place. [2024-01-31 17:09:53,458 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 35 selfloop transitions, 3 changer transitions 0/43 dead transitions. [2024-01-31 17:09:53,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 43 transitions, 192 flow [2024-01-31 17:09:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 17:09:53,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 17:09:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2024-01-31 17:09:53,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5227272727272727 [2024-01-31 17:09:53,465 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 78 flow. Second operand 4 states and 69 transitions. [2024-01-31 17:09:53,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 43 transitions, 192 flow [2024-01-31 17:09:53,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 17:09:53,483 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 88 flow [2024-01-31 17:09:53,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=36, PETRI_TRANSITIONS=31} [2024-01-31 17:09:53,484 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2024-01-31 17:09:53,484 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 88 flow [2024-01-31 17:09:53,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:09:53,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:09:53,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:09:53,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 17:09:53,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:09:53,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:09:53,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1343296788, now seen corresponding path program 1 times [2024-01-31 17:09:53,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:09:53,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260898949] [2024-01-31 17:09:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:09:53,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:09:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:09:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:09:53,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:09:53,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260898949] [2024-01-31 17:09:53,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260898949] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:09:53,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:09:53,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 17:09:53,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23556404] [2024-01-31 17:09:53,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:09:53,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 17:09:53,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:09:53,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 17:09:53,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 17:09:53,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-01-31 17:09:53,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:09:53,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:09:53,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-01-31 17:09:53,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:09:53,734 INFO L124 PetriNetUnfolderBase]: 484/822 cut-off events. [2024-01-31 17:09:53,735 INFO L125 PetriNetUnfolderBase]: For 283/283 co-relation queries the response was YES. [2024-01-31 17:09:53,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1968 conditions, 822 events. 484/822 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3939 event pairs, 405 based on Foata normal form. 1/794 useless extension candidates. Maximal degree in co-relation 469. Up to 745 conditions per place. [2024-01-31 17:09:53,738 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 25 selfloop transitions, 2 changer transitions 0/32 dead transitions. [2024-01-31 17:09:53,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 144 flow [2024-01-31 17:09:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 17:09:53,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 17:09:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2024-01-31 17:09:53,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050505050505051 [2024-01-31 17:09:53,741 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 88 flow. Second operand 3 states and 50 transitions. [2024-01-31 17:09:53,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 144 flow [2024-01-31 17:09:53,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 32 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 17:09:53,743 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 96 flow [2024-01-31 17:09:53,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-01-31 17:09:53,744 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-01-31 17:09:53,744 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 96 flow [2024-01-31 17:09:53,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:09:53,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:09:53,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:09:53,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 17:09:53,745 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:09:53,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:09:53,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1663225875, now seen corresponding path program 1 times [2024-01-31 17:09:53,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:09:53,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195539718] [2024-01-31 17:09:53,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:09:53,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:09:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:09:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:09:54,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:09:54,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195539718] [2024-01-31 17:09:54,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195539718] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:09:54,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336219042] [2024-01-31 17:09:54,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:09:54,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:09:54,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:09:54,074 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) [2024-01-31 17:09:54,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-31 17:09:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:09:54,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 27 conjunts are in the unsatisfiable core [2024-01-31 17:09:54,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:09:54,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-01-31 17:09:54,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-01-31 17:09:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:09:54,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:09:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:09:54,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336219042] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:09:54,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:09:54,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 7] total 16 [2024-01-31 17:09:54,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919073897] [2024-01-31 17:09:54,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:09:54,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-01-31 17:09:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:09:54,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-01-31 17:09:54,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-01-31 17:09:54,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-01-31 17:09:54,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 96 flow. Second operand has 16 states, 16 states have (on average 11.5) internal successors, (184), 16 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:09:54,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:09:54,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-01-31 17:09:54,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:09:54,994 INFO L124 PetriNetUnfolderBase]: 1209/1948 cut-off events. [2024-01-31 17:09:54,995 INFO L125 PetriNetUnfolderBase]: For 465/465 co-relation queries the response was YES. [2024-01-31 17:09:54,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4548 conditions, 1948 events. 1209/1948 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9768 event pairs, 80 based on Foata normal form. 2/1942 useless extension candidates. Maximal degree in co-relation 4535. Up to 523 conditions per place. [2024-01-31 17:09:54,999 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 0 selfloop transitions, 0 changer transitions 150/150 dead transitions. [2024-01-31 17:09:54,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 150 transitions, 731 flow [2024-01-31 17:09:55,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-01-31 17:09:55,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-01-31 17:09:55,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 253 transitions. [2024-01-31 17:09:55,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2024-01-31 17:09:55,001 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 96 flow. Second operand 16 states and 253 transitions. [2024-01-31 17:09:55,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 150 transitions, 731 flow [2024-01-31 17:09:55,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 150 transitions, 727 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-01-31 17:09:55,004 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-01-31 17:09:55,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-01-31 17:09:55,005 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2024-01-31 17:09:55,005 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-01-31 17:09:55,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.5) internal successors, (184), 16 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:09:55,007 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-01-31 17:09:55,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-01-31 17:09:55,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-01-31 17:09:55,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-01-31 17:09:55,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-01-31 17:09:55,219 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 [2024-01-31 17:09:55,220 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-01-31 17:09:55,222 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 17:09:55,222 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 17:09:55,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 05:09:55 BasicIcfg [2024-01-31 17:09:55,226 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 17:09:55,227 INFO L158 Benchmark]: Toolchain (without parser) took 3809.52ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 111.9MB in the beginning and 107.1MB in the end (delta: 4.7MB). Peak memory consumption was 115.1MB. Max. memory is 16.1GB. [2024-01-31 17:09:55,227 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 148.9MB. Free memory was 125.2MB in the beginning and 125.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 17:09:55,227 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 148.9MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 17:09:55,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.21ms. Allocated memory is still 148.9MB. Free memory was 111.9MB in the beginning and 97.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-31 17:09:55,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.27ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 17:09:55,228 INFO L158 Benchmark]: Boogie Preprocessor took 63.94ms. Allocated memory is still 148.9MB. Free memory was 95.8MB in the beginning and 93.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 17:09:55,228 INFO L158 Benchmark]: RCFGBuilder took 560.62ms. Allocated memory is still 148.9MB. Free memory was 93.0MB in the beginning and 50.4MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-01-31 17:09:55,229 INFO L158 Benchmark]: TraceAbstraction took 2888.74ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 50.3MB in the beginning and 107.1MB in the end (delta: -56.9MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2024-01-31 17:09:55,230 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 0.10ms. Allocated memory is still 148.9MB. Free memory was 125.2MB in the beginning and 125.1MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 148.9MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.21ms. Allocated memory is still 148.9MB. Free memory was 111.9MB in the beginning and 97.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.27ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.94ms. Allocated memory is still 148.9MB. Free memory was 95.8MB in the beginning and 93.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 560.62ms. Allocated memory is still 148.9MB. Free memory was 93.0MB in the beginning and 50.4MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2888.74ms. Allocated memory was 148.9MB in the beginning and 203.4MB in the end (delta: 54.5MB). Free memory was 50.3MB in the beginning and 107.1MB in the end (delta: -56.9MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 212 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 603 IncrementalHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 2 mSDtfsCounter, 603 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 1158 SizeOfPredicates, 11 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 5/12 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 17:09:55,254 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