./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i --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/safe030_tso.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/pthread-wmm/safe030_tso.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/safe030_tso.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 16:44:18,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:44:18,542 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:44:18,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:44:18,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:44:18,579 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:44:18,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:44:18,582 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:44:18,583 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:44:18,586 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:44:18,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:44:18,586 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:44:18,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:44:18,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:44:18,588 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:44:18,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:44:18,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:44:18,588 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:44:18,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:44:18,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:44:18,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:44:18,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:44:18,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:44:18,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:44:18,591 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:44:18,591 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:44:18,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:44:18,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:44:18,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:44:18,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:44:18,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:44:18,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:44:18,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:44:18,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:44:18,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:44:18,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:44:18,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:44:18,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:44:18,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:44:18,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:44:18,594 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:44:18,595 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:44:18,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:44:18,595 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:44:18,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:44:18,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:44:18,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:44:18,842 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:44:18,843 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:44:18,844 INFO L431 ainManager$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/safe030_tso.yml/witness.yml [2024-01-31 16:44:19,045 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:44:19,045 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:44:19,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-01-31 16:44:20,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:44:20,216 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:44:20,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i [2024-01-31 16:44:20,231 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a949fc5b4/44a6d1ff77484e829074d44d1c03f7d4/FLAG791a15205 [2024-01-31 16:44:20,241 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a949fc5b4/44a6d1ff77484e829074d44d1c03f7d4 [2024-01-31 16:44:20,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:44:20,242 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:44:20,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:44:20,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:44:20,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:44:20,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:19" (1/2) ... [2024-01-31 16:44:20,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ec0acc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:20, skipping insertion in model container [2024-01-31 16:44:20,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:19" (1/2) ... [2024-01-31 16:44:20,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77dca85f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:44:20, skipping insertion in model container [2024-01-31 16:44:20,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:20" (2/2) ... [2024-01-31 16:44:20,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ec0acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20, skipping insertion in model container [2024-01-31 16:44:20,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:44:20" (2/2) ... [2024-01-31 16:44:20,249 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:44:20,561 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:44:20,565 INFO L98 nessWitnessExtractor]: Location invariant before [L18-L18] expression == 0 [2024-01-31 16:44:20,565 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L18] expression == 1 [2024-01-31 16:44:20,618 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:44:20,736 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i[945,958] [2024-01-31 16:44:20,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:44:20,863 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:44:20,875 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.i[945,958] Start Parsing Local [2024-01-31 16:44:20,895 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry [2024-01-31 16:44:20,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:44:20,966 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:44:20,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20 WrapperNode [2024-01-31 16:44:20,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:44:20,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:44:20,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:44:20,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:44:20,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,005 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,028 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-01-31 16:44:21,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:44:21,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:44:21,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:44:21,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:44:21,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,056 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,066 INFO L175 MemorySlicer]: Split 5 memory accesses to 4 slices as follows [2, 1, 1, 1]. 40 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-31 16:44:21,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,082 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:44:21,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:44:21,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:44:21,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:44:21,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (1/1) ... [2024-01-31 16:44:21,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:44:21,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:44:21,127 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 16:44:21,133 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 16:44:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:44:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:44:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:44:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:44:21,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:44:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:44:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:44:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:44:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-31 16:44:21,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-31 16:44:21,159 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-31 16:44:21,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-31 16:44:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-31 16:44:21,160 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-31 16:44:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:44:21,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:44:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:44:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:44:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:44:21,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:44:21,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:44:21,163 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 16:44:21,301 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:44:21,303 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:44:21,477 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:44:21,478 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:44:21,551 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:44:21,551 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:44:21,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:21 BoogieIcfgContainer [2024-01-31 16:44:21,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:44:21,556 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:44:21,556 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:44:21,559 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:44:21,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:44:19" (1/4) ... [2024-01-31 16:44:21,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe9a42f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:44:21, skipping insertion in model container [2024-01-31 16:44:21,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:44:20" (2/4) ... [2024-01-31 16:44:21,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe9a42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:21, skipping insertion in model container [2024-01-31 16:44:21,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:44:20" (3/4) ... [2024-01-31 16:44:21,561 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe9a42f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:44:21, skipping insertion in model container [2024-01-31 16:44:21,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:44:21" (4/4) ... [2024-01-31 16:44:21,562 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2024-01-31 16:44:21,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:44:21,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-31 16:44:21,576 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:44:21,620 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:44:21,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 92 flow [2024-01-31 16:44:21,678 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2024-01-31 16:44:21,678 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:21,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 1/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-01-31 16:44:21,683 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 40 transitions, 92 flow [2024-01-31 16:44:21,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 34 transitions, 77 flow [2024-01-31 16:44:21,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:44:21,699 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;@456f292f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:44:21,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-01-31 16:44:21,706 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:44:21,707 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-01-31 16:44:21,707 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:21,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:21,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:21,709 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:21,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:21,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2052833691, now seen corresponding path program 1 times [2024-01-31 16:44:21,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:21,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076781037] [2024-01-31 16:44:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:21,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:21,961 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 16:44:21,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:21,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076781037] [2024-01-31 16:44:21,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076781037] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:21,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:21,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:44:21,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132569330] [2024-01-31 16:44:21,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:21,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:44:21,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:22,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:44:22,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:44:22,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-01-31 16:44:22,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 16:44:22,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:22,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-01-31 16:44:22,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:22,107 INFO L124 PetriNetUnfolderBase]: 75/203 cut-off events. [2024-01-31 16:44:22,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:44:22,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 203 events. 75/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1056 event pairs, 51 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 347. Up to 97 conditions per place. [2024-01-31 16:44:22,110 INFO L140 encePairwiseOnDemand]: 38/40 looper letters, 16 selfloop transitions, 1 changer transitions 0/36 dead transitions. [2024-01-31 16:44:22,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 36 transitions, 115 flow [2024-01-31 16:44:22,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:44:22,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:44:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-01-31 16:44:22,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-01-31 16:44:22,121 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 77 flow. Second operand 3 states and 84 transitions. [2024-01-31 16:44:22,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 36 transitions, 115 flow [2024-01-31 16:44:22,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 36 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-31 16:44:22,125 INFO L231 Difference]: Finished difference. Result has 42 places, 33 transitions, 74 flow [2024-01-31 16:44:22,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2024-01-31 16:44:22,129 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2024-01-31 16:44:22,129 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 74 flow [2024-01-31 16:44:22,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 16:44:22,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:22,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:22,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:44:22,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:22,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash 786665215, now seen corresponding path program 1 times [2024-01-31 16:44:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:22,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891371692] [2024-01-31 16:44:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:22,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:22,421 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 16:44:22,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:22,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891371692] [2024-01-31 16:44:22,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891371692] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:22,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:22,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:44:22,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184059111] [2024-01-31 16:44:22,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:22,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:44:22,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:22,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:44:22,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:44:22,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-01-31 16:44:22,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 16:44:22,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:22,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-01-31 16:44:22,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:22,777 INFO L124 PetriNetUnfolderBase]: 1785/3124 cut-off events. [2024-01-31 16:44:22,778 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2024-01-31 16:44:22,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5946 conditions, 3124 events. 1785/3124 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 21027 event pairs, 615 based on Foata normal form. 94/3182 useless extension candidates. Maximal degree in co-relation 5937. Up to 1284 conditions per place. [2024-01-31 16:44:22,793 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 32 selfloop transitions, 7 changer transitions 39/90 dead transitions. [2024-01-31 16:44:22,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 90 transitions, 350 flow [2024-01-31 16:44:22,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-31 16:44:22,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-31 16:44:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 185 transitions. [2024-01-31 16:44:22,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6607142857142857 [2024-01-31 16:44:22,795 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 74 flow. Second operand 7 states and 185 transitions. [2024-01-31 16:44:22,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 90 transitions, 350 flow [2024-01-31 16:44:22,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 90 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:44:22,800 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 159 flow [2024-01-31 16:44:22,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=159, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2024-01-31 16:44:22,801 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 9 predicate places. [2024-01-31 16:44:22,801 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 159 flow [2024-01-31 16:44:22,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 16:44:22,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:22,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:22,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:44:22,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:22,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:22,802 INFO L85 PathProgramCache]: Analyzing trace with hash -801860852, now seen corresponding path program 1 times [2024-01-31 16:44:22,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:22,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140671759] [2024-01-31 16:44:22,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:22,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:23,031 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 16:44:23,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:23,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140671759] [2024-01-31 16:44:23,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140671759] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:23,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:23,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:23,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562626461] [2024-01-31 16:44:23,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:23,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:23,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:23,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:23,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:23,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-01-31 16:44:23,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 16:44:23,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:23,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-01-31 16:44:23,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:23,360 INFO L124 PetriNetUnfolderBase]: 1571/2881 cut-off events. [2024-01-31 16:44:23,360 INFO L125 PetriNetUnfolderBase]: For 3882/3888 co-relation queries the response was YES. [2024-01-31 16:44:23,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8765 conditions, 2881 events. 1571/2881 cut-off events. For 3882/3888 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 19707 event pairs, 218 based on Foata normal form. 90/2963 useless extension candidates. Maximal degree in co-relation 8749. Up to 1176 conditions per place. [2024-01-31 16:44:23,375 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 42 selfloop transitions, 11 changer transitions 58/123 dead transitions. [2024-01-31 16:44:23,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 123 transitions, 822 flow [2024-01-31 16:44:23,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:23,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:23,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 254 transitions. [2024-01-31 16:44:23,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.635 [2024-01-31 16:44:23,381 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 159 flow. Second operand 10 states and 254 transitions. [2024-01-31 16:44:23,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 123 transitions, 822 flow [2024-01-31 16:44:23,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 123 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:44:23,393 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 269 flow [2024-01-31 16:44:23,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=269, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2024-01-31 16:44:23,394 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 21 predicate places. [2024-01-31 16:44:23,395 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 269 flow [2024-01-31 16:44:23,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 16:44:23,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:23,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:23,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:44:23,395 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:23,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:23,396 INFO L85 PathProgramCache]: Analyzing trace with hash -953317666, now seen corresponding path program 1 times [2024-01-31 16:44:23,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:23,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775971871] [2024-01-31 16:44:23,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:23,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:23,540 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 16:44:23,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:23,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775971871] [2024-01-31 16:44:23,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775971871] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:23,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:23,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:23,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625039246] [2024-01-31 16:44:23,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:23,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:23,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:23,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:23,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:23,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-01-31 16:44:23,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 16:44:23,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:23,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-01-31 16:44:23,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:23,838 INFO L124 PetriNetUnfolderBase]: 1398/2629 cut-off events. [2024-01-31 16:44:23,839 INFO L125 PetriNetUnfolderBase]: For 8799/8803 co-relation queries the response was YES. [2024-01-31 16:44:23,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9455 conditions, 2629 events. 1398/2629 cut-off events. For 8799/8803 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 17774 event pairs, 252 based on Foata normal form. 67/2658 useless extension candidates. Maximal degree in co-relation 9430. Up to 1102 conditions per place. [2024-01-31 16:44:23,854 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 47 selfloop transitions, 17 changer transitions 50/126 dead transitions. [2024-01-31 16:44:23,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 126 transitions, 998 flow [2024-01-31 16:44:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:23,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 248 transitions. [2024-01-31 16:44:23,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.62 [2024-01-31 16:44:23,856 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 269 flow. Second operand 10 states and 248 transitions. [2024-01-31 16:44:23,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 126 transitions, 998 flow [2024-01-31 16:44:23,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 126 transitions, 966 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-01-31 16:44:23,875 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 441 flow [2024-01-31 16:44:23,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=441, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2024-01-31 16:44:23,876 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 33 predicate places. [2024-01-31 16:44:23,876 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 441 flow [2024-01-31 16:44:23,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 16:44:23,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:23,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:23,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:44:23,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:23,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1946723395, now seen corresponding path program 1 times [2024-01-31 16:44:23,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:23,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430543594] [2024-01-31 16:44:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:23,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:23,983 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 16:44:23,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:23,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430543594] [2024-01-31 16:44:23,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430543594] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:23,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:23,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:23,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783076742] [2024-01-31 16:44:23,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:23,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:23,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:23,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:23,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:23,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-01-31 16:44:24,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 16:44:24,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:24,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-01-31 16:44:24,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:24,305 INFO L124 PetriNetUnfolderBase]: 1255/2384 cut-off events. [2024-01-31 16:44:24,305 INFO L125 PetriNetUnfolderBase]: For 13911/13917 co-relation queries the response was YES. [2024-01-31 16:44:24,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9984 conditions, 2384 events. 1255/2384 cut-off events. For 13911/13917 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 15988 event pairs, 115 based on Foata normal form. 51/2424 useless extension candidates. Maximal degree in co-relation 9948. Up to 1034 conditions per place. [2024-01-31 16:44:24,320 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 46 selfloop transitions, 22 changer transitions 40/120 dead transitions. [2024-01-31 16:44:24,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 120 transitions, 1176 flow [2024-01-31 16:44:24,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:24,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 236 transitions. [2024-01-31 16:44:24,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.59 [2024-01-31 16:44:24,321 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 441 flow. Second operand 10 states and 236 transitions. [2024-01-31 16:44:24,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 120 transitions, 1176 flow [2024-01-31 16:44:24,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 120 transitions, 1124 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-01-31 16:44:24,338 INFO L231 Difference]: Finished difference. Result has 85 places, 63 transitions, 623 flow [2024-01-31 16:44:24,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=623, PETRI_PLACES=85, PETRI_TRANSITIONS=63} [2024-01-31 16:44:24,339 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 41 predicate places. [2024-01-31 16:44:24,339 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 63 transitions, 623 flow [2024-01-31 16:44:24,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 16:44:24,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:24,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:24,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:44:24,339 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:24,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:24,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1448477985, now seen corresponding path program 1 times [2024-01-31 16:44:24,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:24,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017471913] [2024-01-31 16:44:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:24,427 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 16:44:24,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:24,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017471913] [2024-01-31 16:44:24,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017471913] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:24,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:24,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:24,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657630695] [2024-01-31 16:44:24,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:24,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:24,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:24,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:24,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:24,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-01-31 16:44:24,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 63 transitions, 623 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 16:44:24,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:24,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-01-31 16:44:24,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:24,818 INFO L124 PetriNetUnfolderBase]: 1455/2800 cut-off events. [2024-01-31 16:44:24,818 INFO L125 PetriNetUnfolderBase]: For 22021/22021 co-relation queries the response was YES. [2024-01-31 16:44:24,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12791 conditions, 2800 events. 1455/2800 cut-off events. For 22021/22021 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 20303 event pairs, 245 based on Foata normal form. 50/2809 useless extension candidates. Maximal degree in co-relation 12748. Up to 782 conditions per place. [2024-01-31 16:44:24,837 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 51 selfloop transitions, 26 changer transitions 43/132 dead transitions. [2024-01-31 16:44:24,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 132 transitions, 1443 flow [2024-01-31 16:44:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:24,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:24,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 242 transitions. [2024-01-31 16:44:24,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.605 [2024-01-31 16:44:24,838 INFO L175 Difference]: Start difference. First operand has 85 places, 63 transitions, 623 flow. Second operand 10 states and 242 transitions. [2024-01-31 16:44:24,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 132 transitions, 1443 flow [2024-01-31 16:44:24,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 132 transitions, 1385 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-01-31 16:44:24,858 INFO L231 Difference]: Finished difference. Result has 91 places, 63 transitions, 729 flow [2024-01-31 16:44:24,859 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=729, PETRI_PLACES=91, PETRI_TRANSITIONS=63} [2024-01-31 16:44:24,859 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 47 predicate places. [2024-01-31 16:44:24,859 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 63 transitions, 729 flow [2024-01-31 16:44:24,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 16:44:24,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:24,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:24,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-31 16:44:24,860 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:24,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:24,860 INFO L85 PathProgramCache]: Analyzing trace with hash -579166851, now seen corresponding path program 1 times [2024-01-31 16:44:24,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:24,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040354389] [2024-01-31 16:44:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:24,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:24,958 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 16:44:24,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:24,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040354389] [2024-01-31 16:44:24,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040354389] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:24,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:24,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:24,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361189726] [2024-01-31 16:44:24,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:24,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:24,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:24,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:24,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:24,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-01-31 16:44:24,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 63 transitions, 729 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 16:44:24,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:24,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-01-31 16:44:24,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:25,371 INFO L124 PetriNetUnfolderBase]: 1655/3352 cut-off events. [2024-01-31 16:44:25,371 INFO L125 PetriNetUnfolderBase]: For 30625/30625 co-relation queries the response was YES. [2024-01-31 16:44:25,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15661 conditions, 3352 events. 1655/3352 cut-off events. For 30625/30625 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 26526 event pairs, 284 based on Foata normal form. 50/3312 useless extension candidates. Maximal degree in co-relation 15628. Up to 1042 conditions per place. [2024-01-31 16:44:25,392 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 49 selfloop transitions, 25 changer transitions 46/132 dead transitions. [2024-01-31 16:44:25,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 132 transitions, 1671 flow [2024-01-31 16:44:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:25,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 240 transitions. [2024-01-31 16:44:25,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-01-31 16:44:25,393 INFO L175 Difference]: Start difference. First operand has 91 places, 63 transitions, 729 flow. Second operand 10 states and 240 transitions. [2024-01-31 16:44:25,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 132 transitions, 1671 flow [2024-01-31 16:44:25,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 132 transitions, 1607 flow, removed 32 selfloop flow, removed 5 redundant places. [2024-01-31 16:44:25,427 INFO L231 Difference]: Finished difference. Result has 98 places, 62 transitions, 829 flow [2024-01-31 16:44:25,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=829, PETRI_PLACES=98, PETRI_TRANSITIONS=62} [2024-01-31 16:44:25,428 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 54 predicate places. [2024-01-31 16:44:25,428 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 62 transitions, 829 flow [2024-01-31 16:44:25,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 16:44:25,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:25,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:25,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-31 16:44:25,428 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:25,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:25,429 INFO L85 PathProgramCache]: Analyzing trace with hash -114691087, now seen corresponding path program 1 times [2024-01-31 16:44:25,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:25,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059291029] [2024-01-31 16:44:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:25,504 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 16:44:25,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:25,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059291029] [2024-01-31 16:44:25,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059291029] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:25,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:25,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-31 16:44:25,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365798139] [2024-01-31 16:44:25,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:25,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:25,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:25,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:25,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:25,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-01-31 16:44:25,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 62 transitions, 829 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 16:44:25,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:25,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-01-31 16:44:25,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:26,030 INFO L124 PetriNetUnfolderBase]: 1887/3980 cut-off events. [2024-01-31 16:44:26,033 INFO L125 PetriNetUnfolderBase]: For 40050/40050 co-relation queries the response was YES. [2024-01-31 16:44:26,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18335 conditions, 3980 events. 1887/3980 cut-off events. For 40050/40050 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 34224 event pairs, 339 based on Foata normal form. 58/3974 useless extension candidates. Maximal degree in co-relation 18298. Up to 1228 conditions per place. [2024-01-31 16:44:26,064 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 44 selfloop transitions, 23 changer transitions 50/129 dead transitions. [2024-01-31 16:44:26,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 129 transitions, 1841 flow [2024-01-31 16:44:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-31 16:44:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-31 16:44:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 238 transitions. [2024-01-31 16:44:26,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.595 [2024-01-31 16:44:26,067 INFO L175 Difference]: Start difference. First operand has 98 places, 62 transitions, 829 flow. Second operand 10 states and 238 transitions. [2024-01-31 16:44:26,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 129 transitions, 1841 flow [2024-01-31 16:44:26,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 129 transitions, 1703 flow, removed 53 selfloop flow, removed 7 redundant places. [2024-01-31 16:44:26,137 INFO L231 Difference]: Finished difference. Result has 101 places, 57 transitions, 745 flow [2024-01-31 16:44:26,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=745, PETRI_PLACES=101, PETRI_TRANSITIONS=57} [2024-01-31 16:44:26,139 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 57 predicate places. [2024-01-31 16:44:26,139 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 57 transitions, 745 flow [2024-01-31 16:44:26,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 16:44:26,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:26,140 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] [2024-01-31 16:44:26,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-31 16:44:26,140 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:26,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:26,140 INFO L85 PathProgramCache]: Analyzing trace with hash -157324350, now seen corresponding path program 1 times [2024-01-31 16:44:26,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:26,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70407321] [2024-01-31 16:44:26,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:26,230 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 16:44:26,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:26,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70407321] [2024-01-31 16:44:26,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70407321] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:26,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:26,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:44:26,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626222066] [2024-01-31 16:44:26,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:26,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:44:26,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:26,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:44:26,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:44:26,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-01-31 16:44:26,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 57 transitions, 745 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 16:44:26,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:26,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-01-31 16:44:26,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:26,639 INFO L124 PetriNetUnfolderBase]: 2311/4633 cut-off events. [2024-01-31 16:44:26,640 INFO L125 PetriNetUnfolderBase]: For 13463/13618 co-relation queries the response was YES. [2024-01-31 16:44:26,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12498 conditions, 4633 events. 2311/4633 cut-off events. For 13463/13618 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 38224 event pairs, 634 based on Foata normal form. 237/4634 useless extension candidates. Maximal degree in co-relation 12460. Up to 1973 conditions per place. [2024-01-31 16:44:26,666 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 26 selfloop transitions, 5 changer transitions 0/72 dead transitions. [2024-01-31 16:44:26,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 72 transitions, 841 flow [2024-01-31 16:44:26,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:44:26,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:44:26,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-01-31 16:44:26,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75625 [2024-01-31 16:44:26,668 INFO L175 Difference]: Start difference. First operand has 101 places, 57 transitions, 745 flow. Second operand 4 states and 121 transitions. [2024-01-31 16:44:26,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 72 transitions, 841 flow [2024-01-31 16:44:26,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 72 transitions, 748 flow, removed 16 selfloop flow, removed 13 redundant places. [2024-01-31 16:44:26,784 INFO L231 Difference]: Finished difference. Result has 87 places, 61 transitions, 690 flow [2024-01-31 16:44:26,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=690, PETRI_PLACES=87, PETRI_TRANSITIONS=61} [2024-01-31 16:44:26,785 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 43 predicate places. [2024-01-31 16:44:26,785 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 61 transitions, 690 flow [2024-01-31 16:44:26,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 16:44:26,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:26,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:26,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-31 16:44:26,786 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:26,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:26,786 INFO L85 PathProgramCache]: Analyzing trace with hash -344641065, now seen corresponding path program 1 times [2024-01-31 16:44:26,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:26,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722484961] [2024-01-31 16:44:26,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:26,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:26,872 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 16:44:26,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:26,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722484961] [2024-01-31 16:44:26,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722484961] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:26,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:26,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 16:44:26,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323260245] [2024-01-31 16:44:26,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:26,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 16:44:26,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 16:44:26,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-31 16:44:26,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-01-31 16:44:26,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 61 transitions, 690 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 16:44:26,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:26,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-01-31 16:44:26,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:27,201 INFO L124 PetriNetUnfolderBase]: 1904/3692 cut-off events. [2024-01-31 16:44:27,202 INFO L125 PetriNetUnfolderBase]: For 3229/4143 co-relation queries the response was YES. [2024-01-31 16:44:27,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9953 conditions, 3692 events. 1904/3692 cut-off events. For 3229/4143 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 28141 event pairs, 169 based on Foata normal form. 273/3783 useless extension candidates. Maximal degree in co-relation 9923. Up to 1820 conditions per place. [2024-01-31 16:44:27,215 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 30 selfloop transitions, 8 changer transitions 4/82 dead transitions. [2024-01-31 16:44:27,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 82 transitions, 835 flow [2024-01-31 16:44:27,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 16:44:27,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 16:44:27,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 153 transitions. [2024-01-31 16:44:27,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.765 [2024-01-31 16:44:27,217 INFO L175 Difference]: Start difference. First operand has 87 places, 61 transitions, 690 flow. Second operand 5 states and 153 transitions. [2024-01-31 16:44:27,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 82 transitions, 835 flow [2024-01-31 16:44:27,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 82 transitions, 800 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-01-31 16:44:27,225 INFO L231 Difference]: Finished difference. Result has 89 places, 64 transitions, 697 flow [2024-01-31 16:44:27,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=697, PETRI_PLACES=89, PETRI_TRANSITIONS=64} [2024-01-31 16:44:27,226 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 45 predicate places. [2024-01-31 16:44:27,226 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 64 transitions, 697 flow [2024-01-31 16:44:27,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 16:44:27,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:44:27,227 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] [2024-01-31 16:44:27,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-31 16:44:27,227 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-01-31 16:44:27,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:44:27,227 INFO L85 PathProgramCache]: Analyzing trace with hash 208612390, now seen corresponding path program 1 times [2024-01-31 16:44:27,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:44:27,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228217840] [2024-01-31 16:44:27,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:44:27,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:44:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:44:27,299 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 16:44:27,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:44:27,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228217840] [2024-01-31 16:44:27,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228217840] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:44:27,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:44:27,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-31 16:44:27,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257545342] [2024-01-31 16:44:27,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:44:27,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-31 16:44:27,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:44:27,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-31 16:44:27,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-31 16:44:27,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 40 [2024-01-31 16:44:27,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 64 transitions, 697 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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 16:44:27,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:44:27,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 40 [2024-01-31 16:44:27,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:44:27,579 INFO L124 PetriNetUnfolderBase]: 1596/2962 cut-off events. [2024-01-31 16:44:27,580 INFO L125 PetriNetUnfolderBase]: For 5433/6864 co-relation queries the response was YES. [2024-01-31 16:44:27,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9660 conditions, 2962 events. 1596/2962 cut-off events. For 5433/6864 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 21329 event pairs, 88 based on Foata normal form. 252/3052 useless extension candidates. Maximal degree in co-relation 9631. Up to 1256 conditions per place. [2024-01-31 16:44:27,592 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2024-01-31 16:44:27,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 78 transitions, 805 flow [2024-01-31 16:44:27,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-31 16:44:27,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-31 16:44:27,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 176 transitions. [2024-01-31 16:44:27,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-01-31 16:44:27,593 INFO L175 Difference]: Start difference. First operand has 89 places, 64 transitions, 697 flow. Second operand 6 states and 176 transitions. [2024-01-31 16:44:27,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 78 transitions, 805 flow [2024-01-31 16:44:27,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 758 flow, removed 7 selfloop flow, removed 8 redundant places. [2024-01-31 16:44:27,600 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2024-01-31 16:44:27,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2024-01-31 16:44:27,601 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 36 predicate places. [2024-01-31 16:44:27,601 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2024-01-31 16:44:27,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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 16:44:27,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining) [2024-01-31 16:44:27,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-01-31 16:44:27,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-01-31 16:44:27,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-01-31 16:44:27,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-01-31 16:44:27,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-31 16:44:27,605 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:44:27,608 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:44:27,608 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:44:27,611 INFO L503 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-01-31 16:44:27,611 INFO L504 ceAbstractionStarter]: WitnessConsidered=1 [2024-01-31 16:44:27,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:44:27 BasicIcfg [2024-01-31 16:44:27,612 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:44:27,613 INFO L158 Benchmark]: Toolchain (without parser) took 7370.86ms. Allocated memory was 159.4MB in the beginning and 864.0MB in the end (delta: 704.6MB). Free memory was 108.2MB in the beginning and 600.8MB in the end (delta: -492.7MB). Peak memory consumption was 257.8MB. Max. memory is 16.1GB. [2024-01-31 16:44:27,613 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 127.9MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:27,613 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 127.9MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:44:27,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 724.04ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 89.0MB in the end (delta: 18.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-01-31 16:44:27,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.19ms. Allocated memory is still 159.4MB. Free memory was 89.0MB in the beginning and 86.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:44:27,615 INFO L158 Benchmark]: Boogie Preprocessor took 68.34ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 84.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:44:27,615 INFO L158 Benchmark]: RCFGBuilder took 453.99ms. Allocated memory is still 159.4MB. Free memory was 84.8MB in the beginning and 62.9MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-01-31 16:44:27,616 INFO L158 Benchmark]: TraceAbstraction took 6056.70ms. Allocated memory was 159.4MB in the beginning and 864.0MB in the end (delta: 704.6MB). Free memory was 61.7MB in the beginning and 600.8MB in the end (delta: -539.1MB). Peak memory consumption was 212.6MB. Max. memory is 16.1GB. [2024-01-31 16:44:27,617 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 127.9MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 127.9MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 724.04ms. Allocated memory is still 159.4MB. Free memory was 107.9MB in the beginning and 89.0MB in the end (delta: 18.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.19ms. Allocated memory is still 159.4MB. Free memory was 89.0MB in the beginning and 86.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.34ms. Allocated memory is still 159.4MB. Free memory was 86.7MB in the beginning and 84.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.99ms. Allocated memory is still 159.4MB. Free memory was 84.8MB in the beginning and 62.9MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6056.70ms. Allocated memory was 159.4MB in the beginning and 864.0MB in the end (delta: 704.6MB). Free memory was 61.7MB in the beginning and 600.8MB in the end (delta: -539.1MB). Peak memory consumption was 212.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 18]: 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, 64 locations, 5 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: 6.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 567 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 516 mSDsluCounter, 495 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 350 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 985 IncrementalHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 145 mSDtfsCounter, 985 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=829occurred in iteration=7, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 203 ConstructedInterpolants, 0 QuantifiedInterpolants, 771 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-31 16:44:27,654 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