./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-easy6.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/test-easy6.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/test-easy6.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-easy6.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 17:21:38,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 17:21:38,374 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 17:21:38,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 17:21:38,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 17:21:38,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 17:21:38,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 17:21:38,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 17:21:38,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 17:21:38,416 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 17:21:38,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 17:21:38,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 17:21:38,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 17:21:38,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 17:21:38,418 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 17:21:38,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 17:21:38,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 17:21:38,419 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 17:21:38,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 17:21:38,420 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 17:21:38,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 17:21:38,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 17:21:38,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 17:21:38,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 17:21:38,421 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 17:21:38,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 17:21:38,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 17:21:38,422 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 17:21:38,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 17:21:38,422 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 17:21:38,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 17:21:38,424 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 17:21:38,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:21:38,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 17:21:38,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 17:21:38,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 17:21:38,425 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 17:21:38,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 17:21:38,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 17:21:38,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 17:21:38,426 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 17:21:38,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 17:21:38,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 17:21:38,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 17:21:38,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 17:21:38,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 17:21:38,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 17:21:38,704 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 17:21:38,704 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 17:21:38,705 INFO L431 ainManager$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/test-easy6.wvr.yml/witness.yml [2024-01-31 17:21:38,914 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 17:21:38,914 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 17:21:38,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy6.wvr.c [2024-01-31 17:21:40,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 17:21:40,308 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 17:21:40,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy6.wvr.c [2024-01-31 17:21:40,316 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81a29081/521cf53c7a9d4c3593cf6252e10616c1/FLAGc08a07f51 [2024-01-31 17:21:40,333 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81a29081/521cf53c7a9d4c3593cf6252e10616c1 [2024-01-31 17:21:40,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 17:21:40,335 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 17:21:40,338 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 17:21:40,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 17:21:40,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 17:21:40,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:21:38" (1/2) ... [2024-01-31 17:21:40,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ef6392 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:21:40, skipping insertion in model container [2024-01-31 17:21:40,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:21:38" (1/2) ... [2024-01-31 17:21:40,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3f36d5eb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:21:40, skipping insertion in model container [2024-01-31 17:21:40,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:21:40" (2/2) ... [2024-01-31 17:21:40,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ef6392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40, skipping insertion in model container [2024-01-31 17:21:40,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:21:40" (2/2) ... [2024-01-31 17:21:40,348 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 17:21:40,453 INFO L93 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-01-31 17:21:40,476 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 17:21:40,666 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/test-easy6.wvr.c[3072,3085] [2024-01-31 17:21:40,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:21:40,679 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 17:21:40,712 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/test-easy6.wvr.c[3072,3085] [2024-01-31 17:21:40,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:21:40,753 INFO L208 MainTranslator]: Completed translation [2024-01-31 17:21:40,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40 WrapperNode [2024-01-31 17:21:40,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 17:21:40,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 17:21:40,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 17:21:40,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 17:21:40,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,805 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,826 INFO L138 Inliner]: procedures = 21, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 124 [2024-01-31 17:21:40,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 17:21:40,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 17:21:40,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 17:21:40,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 17:21:40,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,842 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,855 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-31 17:21:40,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,859 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 17:21:40,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 17:21:40,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 17:21:40,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 17:21:40,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (1/1) ... [2024-01-31 17:21:40,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:21:40,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:21:40,897 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 17:21:40,908 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 17:21:40,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 17:21:40,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 17:21:40,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 17:21:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 17:21:40,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 17:21:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 17:21:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 17:21:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 17:21:40,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 17:21:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 17:21:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 17:21:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 17:21:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 17:21:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 17:21:40,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 17:21:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 17:21:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 17:21:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 17:21:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 17:21:40,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 17:21:40,939 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 17:21:41,042 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 17:21:41,044 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 17:21:41,200 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 17:21:41,200 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 17:21:41,296 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 17:21:41,296 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 17:21:41,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:21:41 BoogieIcfgContainer [2024-01-31 17:21:41,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 17:21:41,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 17:21:41,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 17:21:41,302 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 17:21:41,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:21:38" (1/4) ... [2024-01-31 17:21:41,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662cf224 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:21:41, skipping insertion in model container [2024-01-31 17:21:41,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 05:21:40" (2/4) ... [2024-01-31 17:21:41,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662cf224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:21:41, skipping insertion in model container [2024-01-31 17:21:41,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:21:40" (3/4) ... [2024-01-31 17:21:41,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662cf224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:21:41, skipping insertion in model container [2024-01-31 17:21:41,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:21:41" (4/4) ... [2024-01-31 17:21:41,305 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2024-01-31 17:21:41,321 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 17:21:41,321 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-31 17:21:41,322 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 17:21:41,361 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-31 17:21:41,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 35 transitions, 84 flow [2024-01-31 17:21:41,422 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2024-01-31 17:21:41,423 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 17:21:41,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 0/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-31 17:21:41,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 35 transitions, 84 flow [2024-01-31 17:21:41,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 32 transitions, 76 flow [2024-01-31 17:21:41,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 17:21:41,442 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;@1dcf1360, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 17:21:41,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-01-31 17:21:41,454 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 17:21:41,454 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-01-31 17:21:41,455 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 17:21:41,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:21:41,455 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, 1, 1, 1] [2024-01-31 17:21:41,456 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:21:41,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:21:41,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1852700731, now seen corresponding path program 1 times [2024-01-31 17:21:41,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:21:41,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031556764] [2024-01-31 17:21:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:21:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:21:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:21:42,042 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 17:21:42,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:21:42,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031556764] [2024-01-31 17:21:42,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031556764] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:21:42,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:21:42,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:21:42,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295847818] [2024-01-31 17:21:42,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:21:42,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:21:42,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:21:42,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:21:42,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:21:42,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 35 [2024-01-31 17:21:42,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 76 flow. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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 17:21:42,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:21:42,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 35 [2024-01-31 17:21:42,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:21:42,363 INFO L124 PetriNetUnfolderBase]: 133/339 cut-off events. [2024-01-31 17:21:42,364 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-01-31 17:21:42,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 339 events. 133/339 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1607 event pairs, 39 based on Foata normal form. 1/330 useless extension candidates. Maximal degree in co-relation 521. Up to 80 conditions per place. [2024-01-31 17:21:42,370 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 36 selfloop transitions, 6 changer transitions 12/67 dead transitions. [2024-01-31 17:21:42,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 67 transitions, 275 flow [2024-01-31 17:21:42,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 17:21:42,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 17:21:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2024-01-31 17:21:42,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6530612244897959 [2024-01-31 17:21:42,385 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 76 flow. Second operand 7 states and 160 transitions. [2024-01-31 17:21:42,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 67 transitions, 275 flow [2024-01-31 17:21:42,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 67 transitions, 253 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-31 17:21:42,397 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 103 flow [2024-01-31 17:21:42,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=103, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2024-01-31 17:21:42,402 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 5 predicate places. [2024-01-31 17:21:42,402 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 103 flow [2024-01-31 17:21:42,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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 17:21:42,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:21:42,403 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, 1, 1, 1] [2024-01-31 17:21:42,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 17:21:42,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:21:42,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:21:42,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1447345353, now seen corresponding path program 2 times [2024-01-31 17:21:42,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:21:42,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600924328] [2024-01-31 17:21:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:21:42,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:21:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:21:42,623 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 17:21:42,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:21:42,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600924328] [2024-01-31 17:21:42,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600924328] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:21:42,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:21:42,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:21:42,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544986600] [2024-01-31 17:21:42,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:21:42,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:21:42,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:21:42,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:21:42,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:21:42,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-01-31 17:21:42,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 103 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 17:21:42,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:21:42,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-01-31 17:21:42,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:21:42,833 INFO L124 PetriNetUnfolderBase]: 325/778 cut-off events. [2024-01-31 17:21:42,833 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-01-31 17:21:42,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1545 conditions, 778 events. 325/778 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4318 event pairs, 57 based on Foata normal form. 6/771 useless extension candidates. Maximal degree in co-relation 1515. Up to 158 conditions per place. [2024-01-31 17:21:42,839 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 54 selfloop transitions, 15 changer transitions 3/87 dead transitions. [2024-01-31 17:21:42,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 356 flow [2024-01-31 17:21:42,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-31 17:21:42,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-31 17:21:42,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 190 transitions. [2024-01-31 17:21:42,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2024-01-31 17:21:42,842 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 103 flow. Second operand 9 states and 190 transitions. [2024-01-31 17:21:42,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 356 flow [2024-01-31 17:21:42,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 87 transitions, 352 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-01-31 17:21:42,845 INFO L231 Difference]: Finished difference. Result has 52 places, 49 transitions, 182 flow [2024-01-31 17:21:42,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=182, PETRI_PLACES=52, PETRI_TRANSITIONS=49} [2024-01-31 17:21:42,846 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 13 predicate places. [2024-01-31 17:21:42,846 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 182 flow [2024-01-31 17:21:42,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 17:21:42,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:21:42,847 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, 1, 1, 1] [2024-01-31 17:21:42,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 17:21:42,847 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:21:42,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:21:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1488282989, now seen corresponding path program 3 times [2024-01-31 17:21:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:21:42,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783268527] [2024-01-31 17:21:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:21:42,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:21:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:21:42,912 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 17:21:42,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:21:42,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783268527] [2024-01-31 17:21:42,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783268527] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:21:42,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:21:42,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 17:21:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758504310] [2024-01-31 17:21:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:21:42,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 17:21:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:21:42,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 17:21:42,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 17:21:42,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2024-01-31 17:21:42,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 17:21:42,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:21:42,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2024-01-31 17:21:42,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:21:42,993 INFO L124 PetriNetUnfolderBase]: 192/600 cut-off events. [2024-01-31 17:21:42,993 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-01-31 17:21:42,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1279 conditions, 600 events. 192/600 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3671 event pairs, 154 based on Foata normal form. 6/569 useless extension candidates. Maximal degree in co-relation 515. Up to 354 conditions per place. [2024-01-31 17:21:42,999 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 20 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-31 17:21:42,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 54 transitions, 237 flow [2024-01-31 17:21:42,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 17:21:42,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 17:21:43,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-01-31 17:21:43,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7047619047619048 [2024-01-31 17:21:43,002 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 182 flow. Second operand 3 states and 74 transitions. [2024-01-31 17:21:43,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 54 transitions, 237 flow [2024-01-31 17:21:43,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 237 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-31 17:21:43,009 INFO L231 Difference]: Finished difference. Result has 55 places, 49 transitions, 190 flow [2024-01-31 17:21:43,009 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=55, PETRI_TRANSITIONS=49} [2024-01-31 17:21:43,010 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 16 predicate places. [2024-01-31 17:21:43,010 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 49 transitions, 190 flow [2024-01-31 17:21:43,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 17:21:43,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:21:43,011 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, 1, 1, 1] [2024-01-31 17:21:43,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 17:21:43,011 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:21:43,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:21:43,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1707113003, now seen corresponding path program 4 times [2024-01-31 17:21:43,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:21:43,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881636278] [2024-01-31 17:21:43,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:21:43,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:21:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:21:43,144 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 17:21:43,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:21:43,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881636278] [2024-01-31 17:21:43,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881636278] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:21:43,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:21:43,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:21:43,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273780497] [2024-01-31 17:21:43,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:21:43,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:21:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:21:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:21:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:21:43,169 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 35 [2024-01-31 17:21:43,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 49 transitions, 190 flow. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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 17:21:43,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:21:43,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 35 [2024-01-31 17:21:43,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:21:43,341 INFO L124 PetriNetUnfolderBase]: 302/720 cut-off events. [2024-01-31 17:21:43,341 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2024-01-31 17:21:43,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 720 events. 302/720 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3971 event pairs, 106 based on Foata normal form. 2/686 useless extension candidates. Maximal degree in co-relation 741. Up to 186 conditions per place. [2024-01-31 17:21:43,346 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 24 selfloop transitions, 5 changer transitions 22/73 dead transitions. [2024-01-31 17:21:43,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 73 transitions, 342 flow [2024-01-31 17:21:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 17:21:43,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 17:21:43,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 153 transitions. [2024-01-31 17:21:43,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6244897959183674 [2024-01-31 17:21:43,349 INFO L175 Difference]: Start difference. First operand has 55 places, 49 transitions, 190 flow. Second operand 7 states and 153 transitions. [2024-01-31 17:21:43,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 73 transitions, 342 flow [2024-01-31 17:21:43,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 73 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 17:21:43,352 INFO L231 Difference]: Finished difference. Result has 60 places, 43 transitions, 169 flow [2024-01-31 17:21:43,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=169, PETRI_PLACES=60, PETRI_TRANSITIONS=43} [2024-01-31 17:21:43,354 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 21 predicate places. [2024-01-31 17:21:43,354 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 43 transitions, 169 flow [2024-01-31 17:21:43,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 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 17:21:43,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:21:43,355 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, 1, 1, 1] [2024-01-31 17:21:43,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 17:21:43,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:21:43,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:21:43,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1021096881, now seen corresponding path program 5 times [2024-01-31 17:21:43,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:21:43,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927632764] [2024-01-31 17:21:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:21:43,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:21:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:21:43,503 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 17:21:43,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:21:43,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927632764] [2024-01-31 17:21:43,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927632764] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:21:43,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:21:43,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:21:43,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683516020] [2024-01-31 17:21:43,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:21:43,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:21:43,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:21:43,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:21:43,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:21:43,518 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-01-31 17:21:43,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 43 transitions, 169 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 17:21:43,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:21:43,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-01-31 17:21:43,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:21:43,704 INFO L124 PetriNetUnfolderBase]: 274/687 cut-off events. [2024-01-31 17:21:43,704 INFO L125 PetriNetUnfolderBase]: For 361/382 co-relation queries the response was YES. [2024-01-31 17:21:43,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1673 conditions, 687 events. 274/687 cut-off events. For 361/382 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3651 event pairs, 59 based on Foata normal form. 19/697 useless extension candidates. Maximal degree in co-relation 1637. Up to 209 conditions per place. [2024-01-31 17:21:43,708 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 47 selfloop transitions, 8 changer transitions 13/81 dead transitions. [2024-01-31 17:21:43,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 81 transitions, 409 flow [2024-01-31 17:21:43,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-31 17:21:43,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-31 17:21:43,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 172 transitions. [2024-01-31 17:21:43,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-01-31 17:21:43,709 INFO L175 Difference]: Start difference. First operand has 60 places, 43 transitions, 169 flow. Second operand 8 states and 172 transitions. [2024-01-31 17:21:43,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 81 transitions, 409 flow [2024-01-31 17:21:43,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 81 transitions, 386 flow, removed 6 selfloop flow, removed 7 redundant places. [2024-01-31 17:21:43,713 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 162 flow [2024-01-31 17:21:43,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=162, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2024-01-31 17:21:43,713 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2024-01-31 17:21:43,714 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 162 flow [2024-01-31 17:21:43,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 17:21:43,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:21:43,714 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, 1, 1, 1] [2024-01-31 17:21:43,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 17:21:43,715 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:21:43,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:21:43,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1868201497, now seen corresponding path program 6 times [2024-01-31 17:21:43,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:21:43,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196935967] [2024-01-31 17:21:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:21:43,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:21:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:21:43,767 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 17:21:43,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:21:43,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196935967] [2024-01-31 17:21:43,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196935967] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:21:43,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:21:43,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 17:21:43,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634520008] [2024-01-31 17:21:43,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:21:43,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 17:21:43,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:21:43,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 17:21:43,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 17:21:43,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2024-01-31 17:21:43,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 17:21:43,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:21:43,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2024-01-31 17:21:43,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:21:43,836 INFO L124 PetriNetUnfolderBase]: 139/450 cut-off events. [2024-01-31 17:21:43,836 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-01-31 17:21:43,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 450 events. 139/450 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2487 event pairs, 117 based on Foata normal form. 3/428 useless extension candidates. Maximal degree in co-relation 830. Up to 283 conditions per place. [2024-01-31 17:21:43,839 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 19 selfloop transitions, 2 changer transitions 1/46 dead transitions. [2024-01-31 17:21:43,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 46 transitions, 219 flow [2024-01-31 17:21:43,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 17:21:43,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 17:21:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2024-01-31 17:21:43,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7047619047619048 [2024-01-31 17:21:43,841 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 162 flow. Second operand 3 states and 74 transitions. [2024-01-31 17:21:43,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 46 transitions, 219 flow [2024-01-31 17:21:43,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 192 flow, removed 3 selfloop flow, removed 8 redundant places. [2024-01-31 17:21:43,843 INFO L231 Difference]: Finished difference. Result has 51 places, 41 transitions, 145 flow [2024-01-31 17:21:43,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2024-01-31 17:21:43,846 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 12 predicate places. [2024-01-31 17:21:43,846 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 145 flow [2024-01-31 17:21:43,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 17:21:43,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:21:43,847 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, 1, 1, 1] [2024-01-31 17:21:43,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 17:21:43,847 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:21:43,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:21:43,848 INFO L85 PathProgramCache]: Analyzing trace with hash 853079517, now seen corresponding path program 7 times [2024-01-31 17:21:43,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:21:43,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33013734] [2024-01-31 17:21:43,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:21:43,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:21:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:21:43,997 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 17:21:43,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:21:43,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33013734] [2024-01-31 17:21:43,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33013734] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:21:43,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:21:43,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:21:43,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610171587] [2024-01-31 17:21:43,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:21:43,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:21:43,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:21:44,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:21:44,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:21:44,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-01-31 17:21:44,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 145 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 17:21:44,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:21:44,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-01-31 17:21:44,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:21:44,134 INFO L124 PetriNetUnfolderBase]: 143/362 cut-off events. [2024-01-31 17:21:44,134 INFO L125 PetriNetUnfolderBase]: For 125/133 co-relation queries the response was YES. [2024-01-31 17:21:44,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 362 events. 143/362 cut-off events. For 125/133 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1538 event pairs, 49 based on Foata normal form. 6/359 useless extension candidates. Maximal degree in co-relation 332. Up to 207 conditions per place. [2024-01-31 17:21:44,136 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 23 selfloop transitions, 3 changer transitions 12/51 dead transitions. [2024-01-31 17:21:44,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 245 flow [2024-01-31 17:21:44,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 17:21:44,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 17:21:44,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 103 transitions. [2024-01-31 17:21:44,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5885714285714285 [2024-01-31 17:21:44,138 INFO L175 Difference]: Start difference. First operand has 51 places, 41 transitions, 145 flow. Second operand 5 states and 103 transitions. [2024-01-31 17:21:44,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 245 flow [2024-01-31 17:21:44,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 241 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 17:21:44,140 INFO L231 Difference]: Finished difference. Result has 53 places, 35 transitions, 123 flow [2024-01-31 17:21:44,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=53, PETRI_TRANSITIONS=35} [2024-01-31 17:21:44,141 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 14 predicate places. [2024-01-31 17:21:44,141 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 35 transitions, 123 flow [2024-01-31 17:21:44,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 17:21:44,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:21:44,141 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, 1, 1, 1] [2024-01-31 17:21:44,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 17:21:44,142 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-01-31 17:21:44,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:21:44,142 INFO L85 PathProgramCache]: Analyzing trace with hash 156580395, now seen corresponding path program 8 times [2024-01-31 17:21:44,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:21:44,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641071771] [2024-01-31 17:21:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:21:44,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:21:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:21:44,226 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 17:21:44,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:21:44,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641071771] [2024-01-31 17:21:44,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641071771] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:21:44,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:21:44,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 17:21:44,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342075687] [2024-01-31 17:21:44,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:21:44,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-31 17:21:44,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:21:44,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-31 17:21:44,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-01-31 17:21:44,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-01-31 17:21:44,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 35 transitions, 123 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 17:21:44,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:21:44,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-01-31 17:21:44,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:21:44,310 INFO L124 PetriNetUnfolderBase]: 37/102 cut-off events. [2024-01-31 17:21:44,310 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-01-31 17:21:44,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 102 events. 37/102 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 284 event pairs, 5 based on Foata normal form. 6/105 useless extension candidates. Maximal degree in co-relation 186. Up to 26 conditions per place. [2024-01-31 17:21:44,311 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2024-01-31 17:21:44,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 33 transitions, 160 flow [2024-01-31 17:21:44,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 17:21:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 17:21:44,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2024-01-31 17:21:44,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4775510204081633 [2024-01-31 17:21:44,313 INFO L175 Difference]: Start difference. First operand has 53 places, 35 transitions, 123 flow. Second operand 7 states and 117 transitions. [2024-01-31 17:21:44,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 33 transitions, 160 flow [2024-01-31 17:21:44,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 141 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-01-31 17:21:44,314 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2024-01-31 17:21:44,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2024-01-31 17:21:44,315 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2024-01-31 17:21:44,315 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2024-01-31 17:21:44,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 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 17:21:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-01-31 17:21:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-01-31 17:21:44,318 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-01-31 17:21:44,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-31 17:21:44,319 INFO L445 BasicCegarLoop]: Path program histogram: [8] [2024-01-31 17:21:44,321 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 17:21:44,321 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 17:21:44,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 05:21:44 BasicIcfg [2024-01-31 17:21:44,328 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 17:21:44,328 INFO L158 Benchmark]: Toolchain (without parser) took 3993.20ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 94.4MB in the beginning and 134.8MB in the end (delta: -40.4MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-01-31 17:21:44,328 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 17:21:44,329 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 17:21:44,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.43ms. Allocated memory is still 151.0MB. Free memory was 94.4MB in the beginning and 121.1MB in the end (delta: -26.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-01-31 17:21:44,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.62ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 119.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 17:21:44,329 INFO L158 Benchmark]: Boogie Preprocessor took 35.96ms. Allocated memory is still 151.0MB. Free memory was 119.4MB in the beginning and 117.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 17:21:44,330 INFO L158 Benchmark]: RCFGBuilder took 431.66ms. Allocated memory is still 151.0MB. Free memory was 117.4MB in the beginning and 93.1MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-31 17:21:44,330 INFO L158 Benchmark]: TraceAbstraction took 3029.03ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 92.2MB in the beginning and 134.8MB in the end (delta: -42.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-01-31 17:21:44,331 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 0.18ms. Allocated memory is still 113.2MB. Free memory is still 85.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 68.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.43ms. Allocated memory is still 151.0MB. Free memory was 94.4MB in the beginning and 121.1MB in the end (delta: -26.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.62ms. Allocated memory is still 151.0MB. Free memory was 121.1MB in the beginning and 119.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.96ms. Allocated memory is still 151.0MB. Free memory was 119.4MB in the beginning and 117.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.66ms. Allocated memory is still 151.0MB. Free memory was 117.4MB in the beginning and 93.1MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3029.03ms. Allocated memory was 151.0MB in the beginning and 207.6MB in the end (delta: 56.6MB). Free memory was 92.2MB in the beginning and 134.8MB in the end (delta: -42.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 116]: 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 5 procedures, 62 locations, 3 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: 2.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 376 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 361 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 913 IncrementalHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 36 mSDtfsCounter, 913 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=3, InterpolantAutomatonStates: 49, 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, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 17:21:44,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE